Update data class names to indicate target version (#749)

Syncs names with a2b7fc82e2

.editorconfig

@@ -8,7 +8,7 @@ tab_width = 4
 [*.java]
 ij_java_class_count_to_use_import_on_demand = 999999
 ij_java_names_count_to_use_import_on_demand = 999999
-ij_java_imports_layout = *,|,$*
+ij_java_imports_layout = *, |, $*
 ij_java_generate_final_locals = true
 ij_java_generate_final_parameters = true
 

README.md

@@ -48,6 +48,8 @@ Building
 After cloning this repository, build the project with Gradle by running `./gradlew build` and take the created jar out
 of the `build/libs` directory.
 
+You need JDK 17 or newer to build ViaBackwards.
+
 License
 -
 This project is licensed under the [GNU General Public License Version 3](LICENSE).

build-logic/src/main/kotlin/vb.base-conventions.gradle.kts

@@ -21,7 +21,7 @@ tasks {
 }
 
 java {
-    javaTarget(8)
+    javaTarget(17)
     withSourcesJar()
 }
 

build.gradle.kts

@@ -10,13 +10,13 @@ allprojects {
 }
 
 val main = setOf(
-        projects.viabackwards,
-        projects.viabackwardsCommon,
-        projects.viabackwardsBukkit,
-        projects.viabackwardsBungee,
-        projects.viabackwardsFabric,
-        projects.viabackwardsSponge,
-        projects.viabackwardsVelocity
+    projects.viabackwards,
+    projects.viabackwardsCommon,
+    projects.viabackwardsBukkit,
+    projects.viabackwardsBungee,
+    projects.viabackwardsFabric,
+    projects.viabackwardsSponge,
+    projects.viabackwardsVelocity
 ).map { it.dependencyProject }
 
 subprojects {

bukkit/src/main/java/com/viaversion/viabackwards/BukkitPlugin.java

@@ -23,7 +23,7 @@ import com.viaversion.viabackwards.listener.FireDamageListener;
 import com.viaversion.viabackwards.listener.FireExtinguishListener;
 import com.viaversion.viabackwards.listener.LecternInteractListener;
 import com.viaversion.viabackwards.listener.PlayerItemDropListener;
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.provider.AdvancementCriteriaProvider;
+import com.viaversion.viabackwards.protocol.v1_20_2to1_20.provider.AdvancementCriteriaProvider;
 import com.viaversion.viabackwards.provider.BukkitAdvancementCriteriaProvider;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.platform.providers.ViaProviders;

bukkit/src/main/java/com/viaversion/viabackwards/listener/FireDamageListener.java

@@ -18,7 +18,7 @@
 package com.viaversion.viabackwards.listener;
 
 import com.viaversion.viabackwards.BukkitPlugin;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
 import com.viaversion.viaversion.bukkit.listeners.ViaBukkitListener;
 import org.bukkit.Sound;
 import org.bukkit.SoundCategory;
@@ -31,7 +31,7 @@ import org.bukkit.event.entity.EntityDamageEvent;
 public class FireDamageListener extends ViaBukkitListener {
 
     public FireDamageListener(BukkitPlugin plugin) {
-        super(plugin, Protocol1_11_1To1_12.class);
+        super(plugin, Protocol1_12To1_11_1.class);
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
@@ -40,9 +40,9 @@ public class FireDamageListener extends ViaBukkitListener {
 
         EntityDamageEvent.DamageCause cause = event.getCause();
         if (cause != EntityDamageEvent.DamageCause.FIRE
-                && cause != EntityDamageEvent.DamageCause.FIRE_TICK
-                && cause != EntityDamageEvent.DamageCause.LAVA
-                && cause != EntityDamageEvent.DamageCause.DROWNING) {
+            && cause != EntityDamageEvent.DamageCause.FIRE_TICK
+            && cause != EntityDamageEvent.DamageCause.LAVA
+            && cause != EntityDamageEvent.DamageCause.DROWNING) {
             return;
         }
 

bukkit/src/main/java/com/viaversion/viabackwards/listener/FireExtinguishListener.java

@@ -18,7 +18,7 @@
 package com.viaversion.viabackwards.listener;
 
 import com.viaversion.viabackwards.BukkitPlugin;
-import com.viaversion.viabackwards.protocol.protocol1_15_2to1_16.Protocol1_15_2To1_16;
+import com.viaversion.viabackwards.protocol.v1_16to1_15_2.Protocol1_16To1_15_2;
 import com.viaversion.viaversion.bukkit.listeners.ViaBukkitListener;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
@@ -31,7 +31,7 @@ import org.bukkit.event.player.PlayerInteractEvent;
 public class FireExtinguishListener extends ViaBukkitListener {
 
     public FireExtinguishListener(BukkitPlugin plugin) {
-        super(plugin, Protocol1_15_2To1_16.class);
+        super(plugin, Protocol1_16To1_15_2.class);
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)

bukkit/src/main/java/com/viaversion/viabackwards/listener/LecternInteractListener.java

@@ -18,7 +18,7 @@
 package com.viaversion.viabackwards.listener;
 
 import com.viaversion.viabackwards.BukkitPlugin;
-import com.viaversion.viabackwards.protocol.protocol1_13_2to1_14.Protocol1_13_2To1_14;
+import com.viaversion.viabackwards.protocol.v1_14to1_13_2.Protocol1_14To1_13_2;
 import com.viaversion.viaversion.bukkit.listeners.ViaBukkitListener;
 import org.bukkit.Material;
 import org.bukkit.block.Block;
@@ -33,7 +33,7 @@ import org.bukkit.inventory.meta.BookMeta;
 public class LecternInteractListener extends ViaBukkitListener {
 
     public LecternInteractListener(BukkitPlugin plugin) {
-        super(plugin, Protocol1_13_2To1_14.class);
+        super(plugin, Protocol1_14To1_13_2.class);
     }
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)

bukkit/src/main/java/com/viaversion/viabackwards/listener/PlayerItemDropListener.java

@@ -19,7 +19,7 @@
 package com.viaversion.viabackwards.listener;
 
 import com.viaversion.viabackwards.BukkitPlugin;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.Protocol1_13To1_13_1;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.Protocol1_13_1To1_13;
 import com.viaversion.viaversion.bukkit.listeners.ViaBukkitListener;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
@@ -30,7 +30,7 @@ import org.bukkit.inventory.ItemStack;
 public class PlayerItemDropListener extends ViaBukkitListener {
 
     public PlayerItemDropListener(final BukkitPlugin plugin) {
-        super(plugin, Protocol1_13To1_13_1.class); // Starts with 1.13 clients on 1.17 servers
+        super(plugin, Protocol1_13_1To1_13.class); // Starts with 1.13 clients on 1.17 servers
     }
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)

bukkit/src/main/java/com/viaversion/viabackwards/provider/BukkitAdvancementCriteriaProvider.java

@@ -17,19 +17,18 @@
  */
 package com.viaversion.viabackwards.provider;
 
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.provider.AdvancementCriteriaProvider;
+import com.viaversion.viabackwards.protocol.v1_20_2to1_20.provider.AdvancementCriteriaProvider;
 import org.bukkit.Bukkit;
 import org.bukkit.NamespacedKey;
 import org.bukkit.advancement.Advancement;
 
 public final class BukkitAdvancementCriteriaProvider extends AdvancementCriteriaProvider {
 
+    private static final String[] EMPTY_CRITERIA = new String[0];
+
     @Override
     public String[] getCriteria(final String key) {
         final Advancement advancement = Bukkit.getAdvancement(NamespacedKey.fromString(key));
-        if (advancement == null) {
-            return null;
-        }
-        return advancement.getCriteria().toArray(new String[0]);
+        return advancement == null ? EMPTY_CRITERIA : advancement.getCriteria().toArray(EMPTY_CRITERIA);
     }
 }

common/src/main/java/com/viaversion/viabackwards/ViaBackwardsConfig.java

@@ -24,6 +24,7 @@ import java.net.URL;
 import java.util.Collections;
 import java.util.List;
 import java.util.Map;
+import java.util.logging.Logger;
 
 public class ViaBackwardsConfig extends Config implements com.viaversion.viabackwards.api.ViaBackwardsConfig {
 
@@ -34,8 +35,8 @@ public class ViaBackwardsConfig extends Config implements com.viaversion.viaback
     private boolean fix1_13FormattedInventoryTitles;
     private boolean handlePingsAsInvAcknowledgements;
 
-    public ViaBackwardsConfig(File configFile) {
-        super(configFile);
+    public ViaBackwardsConfig(File configFile, Logger logger) {
+        super(configFile, logger);
     }
 
     @Override

common/src/main/java/com/viaversion/viabackwards/api/BackwardsProtocol.java

@@ -17,7 +17,7 @@
  */
 package com.viaversion.viabackwards.api;
 
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viabackwards.api.rewriters.TranslatableRewriter;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.protocol.AbstractProtocol;
@@ -48,7 +48,7 @@ public abstract class BackwardsProtocol<CU extends ClientboundPacketType, CM ext
     protected void registerPackets() {
         super.registerPackets();
 
-        final BackwardsMappings mappingData = getMappingData();
+        final BackwardsMappingData mappingData = getMappingData();
         if (mappingData != null && mappingData.getViaVersionProtocolClass() != null) {
             executeAsyncAfterLoaded(mappingData.getViaVersionProtocolClass(), this::loadMappingData);
         }
@@ -61,7 +61,7 @@ public abstract class BackwardsProtocol<CU extends ClientboundPacketType, CM ext
     }
 
     @Override
-    public @Nullable BackwardsMappings getMappingData() { // Change return type to BackwardsMappings
+    public @Nullable BackwardsMappingData getMappingData() { // Change return type to BackwardsMappings
         return null;
     }
 

common/src/main/java/com/viaversion/viabackwards/api/ViaBackwardsPlatform.java

@@ -21,42 +21,42 @@ package com.viaversion.viabackwards.api;
 import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.ViaBackwardsConfig;
 import com.viaversion.viabackwards.api.rewriters.TranslatableRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.Protocol1_10To1_11;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.Protocol1_11To1_11_1;
-import com.viaversion.viabackwards.protocol.protocol1_12_1to1_12_2.Protocol1_12_1To1_12_2;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.Protocol1_12_2To1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12to1_12_1.Protocol1_12To1_12_1;
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.Protocol1_13_1To1_13_2;
-import com.viaversion.viabackwards.protocol.protocol1_13_2to1_14.Protocol1_13_2To1_14;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.Protocol1_13To1_13_1;
-import com.viaversion.viabackwards.protocol.protocol1_14_1to1_14_2.Protocol1_14_1To1_14_2;
-import com.viaversion.viabackwards.protocol.protocol1_14_2to1_14_3.Protocol1_14_2To1_14_3;
-import com.viaversion.viabackwards.protocol.protocol1_14_3to1_14_4.Protocol1_14_3To1_14_4;
-import com.viaversion.viabackwards.protocol.protocol1_14_4to1_15.Protocol1_14_4To1_15;
-import com.viaversion.viabackwards.protocol.protocol1_14to1_14_1.Protocol1_14To1_14_1;
-import com.viaversion.viabackwards.protocol.protocol1_15_1to1_15_2.Protocol1_15_1To1_15_2;
-import com.viaversion.viabackwards.protocol.protocol1_15_2to1_16.Protocol1_15_2To1_16;
-import com.viaversion.viabackwards.protocol.protocol1_15to1_15_1.Protocol1_15To1_15_1;
-import com.viaversion.viabackwards.protocol.protocol1_16_1to1_16_2.Protocol1_16_1To1_16_2;
-import com.viaversion.viabackwards.protocol.protocol1_16_2to1_16_3.Protocol1_16_2To1_16_3;
-import com.viaversion.viabackwards.protocol.protocol1_16_3to1_16_4.Protocol1_16_3To1_16_4;
-import com.viaversion.viabackwards.protocol.protocol1_16_4to1_17.Protocol1_16_4To1_17;
-import com.viaversion.viabackwards.protocol.protocol1_16to1_16_1.Protocol1_16To1_16_1;
-import com.viaversion.viabackwards.protocol.protocol1_17_1to1_18.Protocol1_17_1To1_18;
-import com.viaversion.viabackwards.protocol.protocol1_17to1_17_1.Protocol1_17To1_17_1;
-import com.viaversion.viabackwards.protocol.protocol1_18_2to1_19.Protocol1_18_2To1_19;
-import com.viaversion.viabackwards.protocol.protocol1_18to1_18_2.Protocol1_18To1_18_2;
-import com.viaversion.viabackwards.protocol.protocol1_19_1to1_19_3.Protocol1_19_1To1_19_3;
-import com.viaversion.viabackwards.protocol.protocol1_19_3to1_19_4.Protocol1_19_3To1_19_4;
-import com.viaversion.viabackwards.protocol.protocol1_19_4to1_20.Protocol1_19_4To1_20;
-import com.viaversion.viabackwards.protocol.protocol1_19to1_19_1.Protocol1_19To1_19_1;
-import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.Protocol1_20_2To1_20_3;
-import com.viaversion.viabackwards.protocol.protocol1_20_3to1_20_5.Protocol1_20_3To1_20_5;
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.Protocol1_20To1_20_2;
-import com.viaversion.viabackwards.protocol.protocol1_9_1_2to1_9_3_4.Protocol1_9_1_2To1_9_3_4;
-import com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.Protocol1_9_4To1_10;
-import com.viaversion.viabackwards.protocol.protocol1_9to1_9_1.Protocol1_9To1_9_1;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.Protocol1_11To1_10;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
+import com.viaversion.viabackwards.protocol.v1_11_1to1_11.Protocol1_11_1To1_11;
+import com.viaversion.viabackwards.protocol.v1_12_2to1_12_1.Protocol1_12_2To1_12_1;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.Protocol1_13To1_12_2;
+import com.viaversion.viabackwards.protocol.v1_12_1to1_12.Protocol1_12_1To1_12;
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.Protocol1_13_2To1_13_1;
+import com.viaversion.viabackwards.protocol.v1_14to1_13_2.Protocol1_14To1_13_2;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.Protocol1_13_1To1_13;
+import com.viaversion.viabackwards.protocol.v1_14_2to1_14_1.Protocol1_14_2To1_14_1;
+import com.viaversion.viabackwards.protocol.v1_14_3to1_14_2.Protocol1_14_3To1_14_2;
+import com.viaversion.viabackwards.protocol.v1_14_4to1_14_3.Protocol1_14_4To1_14_3;
+import com.viaversion.viabackwards.protocol.v1_15to1_14_4.Protocol1_15To1_14_4;
+import com.viaversion.viabackwards.protocol.v1_14_1to1_14.Protocol1_14_1To1_14;
+import com.viaversion.viabackwards.protocol.v1_15_2to1_15_1.Protocol1_15_2To1_15_1;
+import com.viaversion.viabackwards.protocol.v1_16to1_15_2.Protocol1_16To1_15_2;
+import com.viaversion.viabackwards.protocol.v1_15_1to1_15.Protocol1_15_1To1_15;
+import com.viaversion.viabackwards.protocol.v1_16_2to1_16_1.Protocol1_16_2To1_16_1;
+import com.viaversion.viabackwards.protocol.v1_16_3to1_16_2.Protocol1_16_3To1_16_2;
+import com.viaversion.viabackwards.protocol.v1_16_4to1_16_3.Protocol1_16_4To1_16_3;
+import com.viaversion.viabackwards.protocol.v1_17to1_16_4.Protocol1_17To1_16_4;
+import com.viaversion.viabackwards.protocol.v1_16_1to1_16.Protocol1_16_1To1_16;
+import com.viaversion.viabackwards.protocol.v1_18to1_17_1.Protocol1_18To1_17_1;
+import com.viaversion.viabackwards.protocol.v1_17_1to1_17.Protocol1_17_1To1_17;
+import com.viaversion.viabackwards.protocol.v1_19to1_18_2.Protocol1_19To1_18_2;
+import com.viaversion.viabackwards.protocol.v1_18_2to1_18.Protocol1_18_2To1_18;
+import com.viaversion.viabackwards.protocol.v1_19_3to1_19_1.Protocol1_19_3To1_19_1;
+import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.Protocol1_19_4To1_19_3;
+import com.viaversion.viabackwards.protocol.v1_20to1_19_4.Protocol1_20To1_19_4;
+import com.viaversion.viabackwards.protocol.v1_19_1to1_19.Protocol1_19_1To1_19;
+import com.viaversion.viabackwards.protocol.v1_20_3to1_20_2.Protocol1_20_3To1_20_2;
+import com.viaversion.viabackwards.protocol.v1_20_5to1_20_3.Protocol1_20_5To1_20_3;
+import com.viaversion.viabackwards.protocol.v1_20_2to1_20.Protocol1_20_2To1_20;
+import com.viaversion.viabackwards.protocol.v1_9_3to1_9_1.Protocol1_9_3To1_9_1;
+import com.viaversion.viabackwards.protocol.v1_10to1_9_3.Protocol1_10To1_9_3;
+import com.viaversion.viabackwards.protocol.v1_9_1to1_9.Protocol1_9_1To1_9;
 import com.viaversion.viabackwards.utils.VersionInfo;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.protocol.ProtocolManager;
@@ -68,13 +68,13 @@ import java.util.logging.Logger;
 
 public interface ViaBackwardsPlatform {
 
-    String MINIMUM_VV_VERSION = "4.10.1";
+    String MINIMUM_VV_VERSION = "5.0.0";
 
     /**
      * Initialize ViaBackwards.
      */
     default void init(final File configFile) {
-        ViaBackwardsConfig config = new ViaBackwardsConfig(configFile);
+        ViaBackwardsConfig config = new ViaBackwardsConfig(configFile, getLogger());
         config.reload();
         Via.getManager().getConfigurationProvider().register(config);
 
@@ -92,52 +92,52 @@ public interface ViaBackwardsPlatform {
 
         getLogger().info("Registering protocols...");
         final ProtocolManager protocolManager = Via.getManager().getProtocolManager();
-        protocolManager.registerProtocol(new Protocol1_9To1_9_1(), ProtocolVersion.v1_9, ProtocolVersion.v1_9_1);
-        protocolManager.registerProtocol(new Protocol1_9_1_2To1_9_3_4(), Arrays.asList(ProtocolVersion.v1_9_1, ProtocolVersion.v1_9_2), ProtocolVersion.v1_9_3);
-        protocolManager.registerProtocol(new Protocol1_9_4To1_10(), ProtocolVersion.v1_9_3, ProtocolVersion.v1_10);
+        protocolManager.registerProtocol(new Protocol1_9_1To1_9(), ProtocolVersion.v1_9, ProtocolVersion.v1_9_1);
+        protocolManager.registerProtocol(new Protocol1_9_3To1_9_1(), Arrays.asList(ProtocolVersion.v1_9_1, ProtocolVersion.v1_9_2), ProtocolVersion.v1_9_3);
+        protocolManager.registerProtocol(new Protocol1_10To1_9_3(), ProtocolVersion.v1_9_3, ProtocolVersion.v1_10);
 
-        protocolManager.registerProtocol(new Protocol1_10To1_11(), ProtocolVersion.v1_10, ProtocolVersion.v1_11);
-        protocolManager.registerProtocol(new Protocol1_11To1_11_1(), ProtocolVersion.v1_11, ProtocolVersion.v1_11_1);
+        protocolManager.registerProtocol(new Protocol1_11To1_10(), ProtocolVersion.v1_10, ProtocolVersion.v1_11);
+        protocolManager.registerProtocol(new Protocol1_11_1To1_11(), ProtocolVersion.v1_11, ProtocolVersion.v1_11_1);
 
-        protocolManager.registerProtocol(new Protocol1_11_1To1_12(), ProtocolVersion.v1_11_1, ProtocolVersion.v1_12);
-        protocolManager.registerProtocol(new Protocol1_12To1_12_1(), ProtocolVersion.v1_12, ProtocolVersion.v1_12_1);
-        protocolManager.registerProtocol(new Protocol1_12_1To1_12_2(), ProtocolVersion.v1_12_1, ProtocolVersion.v1_12_2);
+        protocolManager.registerProtocol(new Protocol1_12To1_11_1(), ProtocolVersion.v1_11_1, ProtocolVersion.v1_12);
+        protocolManager.registerProtocol(new Protocol1_12_1To1_12(), ProtocolVersion.v1_12, ProtocolVersion.v1_12_1);
+        protocolManager.registerProtocol(new Protocol1_12_2To1_12_1(), ProtocolVersion.v1_12_1, ProtocolVersion.v1_12_2);
 
-        protocolManager.registerProtocol(new Protocol1_12_2To1_13(), ProtocolVersion.v1_12_2, ProtocolVersion.v1_13);
-        protocolManager.registerProtocol(new Protocol1_13To1_13_1(), ProtocolVersion.v1_13, ProtocolVersion.v1_13_1);
-        protocolManager.registerProtocol(new Protocol1_13_1To1_13_2(), ProtocolVersion.v1_13_1, ProtocolVersion.v1_13_2);
+        protocolManager.registerProtocol(new Protocol1_13To1_12_2(), ProtocolVersion.v1_12_2, ProtocolVersion.v1_13);
+        protocolManager.registerProtocol(new Protocol1_13_1To1_13(), ProtocolVersion.v1_13, ProtocolVersion.v1_13_1);
+        protocolManager.registerProtocol(new Protocol1_13_2To1_13_1(), ProtocolVersion.v1_13_1, ProtocolVersion.v1_13_2);
 
-        protocolManager.registerProtocol(new Protocol1_13_2To1_14(), ProtocolVersion.v1_13_2, ProtocolVersion.v1_14);
-        protocolManager.registerProtocol(new Protocol1_14To1_14_1(), ProtocolVersion.v1_14, ProtocolVersion.v1_14_1);
-        protocolManager.registerProtocol(new Protocol1_14_1To1_14_2(), ProtocolVersion.v1_14_1, ProtocolVersion.v1_14_2);
-        protocolManager.registerProtocol(new Protocol1_14_2To1_14_3(), ProtocolVersion.v1_14_2, ProtocolVersion.v1_14_3);
-        protocolManager.registerProtocol(new Protocol1_14_3To1_14_4(), ProtocolVersion.v1_14_3, ProtocolVersion.v1_14_4);
+        protocolManager.registerProtocol(new Protocol1_14To1_13_2(), ProtocolVersion.v1_13_2, ProtocolVersion.v1_14);
+        protocolManager.registerProtocol(new Protocol1_14_1To1_14(), ProtocolVersion.v1_14, ProtocolVersion.v1_14_1);
+        protocolManager.registerProtocol(new Protocol1_14_2To1_14_1(), ProtocolVersion.v1_14_1, ProtocolVersion.v1_14_2);
+        protocolManager.registerProtocol(new Protocol1_14_3To1_14_2(), ProtocolVersion.v1_14_2, ProtocolVersion.v1_14_3);
+        protocolManager.registerProtocol(new Protocol1_14_4To1_14_3(), ProtocolVersion.v1_14_3, ProtocolVersion.v1_14_4);
 
-        protocolManager.registerProtocol(new Protocol1_14_4To1_15(), ProtocolVersion.v1_14_4, ProtocolVersion.v1_15);
-        protocolManager.registerProtocol(new Protocol1_15To1_15_1(), ProtocolVersion.v1_15, ProtocolVersion.v1_15_1);
-        protocolManager.registerProtocol(new Protocol1_15_1To1_15_2(), ProtocolVersion.v1_15_1, ProtocolVersion.v1_15_2);
+        protocolManager.registerProtocol(new Protocol1_15To1_14_4(), ProtocolVersion.v1_14_4, ProtocolVersion.v1_15);
+        protocolManager.registerProtocol(new Protocol1_15_1To1_15(), ProtocolVersion.v1_15, ProtocolVersion.v1_15_1);
+        protocolManager.registerProtocol(new Protocol1_15_2To1_15_1(), ProtocolVersion.v1_15_1, ProtocolVersion.v1_15_2);
 
-        protocolManager.registerProtocol(new Protocol1_15_2To1_16(), ProtocolVersion.v1_15_2, ProtocolVersion.v1_16);
-        protocolManager.registerProtocol(new Protocol1_16To1_16_1(), ProtocolVersion.v1_16, ProtocolVersion.v1_16_1);
-        protocolManager.registerProtocol(new Protocol1_16_1To1_16_2(), ProtocolVersion.v1_16_1, ProtocolVersion.v1_16_2);
-        protocolManager.registerProtocol(new Protocol1_16_2To1_16_3(), ProtocolVersion.v1_16_2, ProtocolVersion.v1_16_3);
-        protocolManager.registerProtocol(new Protocol1_16_3To1_16_4(), ProtocolVersion.v1_16_3, ProtocolVersion.v1_16_4);
+        protocolManager.registerProtocol(new Protocol1_16To1_15_2(), ProtocolVersion.v1_15_2, ProtocolVersion.v1_16);
+        protocolManager.registerProtocol(new Protocol1_16_1To1_16(), ProtocolVersion.v1_16, ProtocolVersion.v1_16_1);
+        protocolManager.registerProtocol(new Protocol1_16_2To1_16_1(), ProtocolVersion.v1_16_1, ProtocolVersion.v1_16_2);
+        protocolManager.registerProtocol(new Protocol1_16_3To1_16_2(), ProtocolVersion.v1_16_2, ProtocolVersion.v1_16_3);
+        protocolManager.registerProtocol(new Protocol1_16_4To1_16_3(), ProtocolVersion.v1_16_3, ProtocolVersion.v1_16_4);
 
-        protocolManager.registerProtocol(new Protocol1_16_4To1_17(), ProtocolVersion.v1_16_4, ProtocolVersion.v1_17);
-        protocolManager.registerProtocol(new Protocol1_17To1_17_1(), ProtocolVersion.v1_17, ProtocolVersion.v1_17_1);
+        protocolManager.registerProtocol(new Protocol1_17To1_16_4(), ProtocolVersion.v1_16_4, ProtocolVersion.v1_17);
+        protocolManager.registerProtocol(new Protocol1_17_1To1_17(), ProtocolVersion.v1_17, ProtocolVersion.v1_17_1);
 
-        protocolManager.registerProtocol(new Protocol1_17_1To1_18(), ProtocolVersion.v1_17_1, ProtocolVersion.v1_18);
-        protocolManager.registerProtocol(new Protocol1_18To1_18_2(), ProtocolVersion.v1_18, ProtocolVersion.v1_18_2);
+        protocolManager.registerProtocol(new Protocol1_18To1_17_1(), ProtocolVersion.v1_17_1, ProtocolVersion.v1_18);
+        protocolManager.registerProtocol(new Protocol1_18_2To1_18(), ProtocolVersion.v1_18, ProtocolVersion.v1_18_2);
 
-        protocolManager.registerProtocol(new Protocol1_18_2To1_19(), ProtocolVersion.v1_18_2, ProtocolVersion.v1_19);
-        protocolManager.registerProtocol(new Protocol1_19To1_19_1(), ProtocolVersion.v1_19, ProtocolVersion.v1_19_1);
-        protocolManager.registerProtocol(new Protocol1_19_1To1_19_3(), ProtocolVersion.v1_19_1, ProtocolVersion.v1_19_3);
-        protocolManager.registerProtocol(new Protocol1_19_3To1_19_4(), ProtocolVersion.v1_19_3, ProtocolVersion.v1_19_4);
+        protocolManager.registerProtocol(new Protocol1_19To1_18_2(), ProtocolVersion.v1_18_2, ProtocolVersion.v1_19);
+        protocolManager.registerProtocol(new Protocol1_19_1To1_19(), ProtocolVersion.v1_19, ProtocolVersion.v1_19_1);
+        protocolManager.registerProtocol(new Protocol1_19_3To1_19_1(), ProtocolVersion.v1_19_1, ProtocolVersion.v1_19_3);
+        protocolManager.registerProtocol(new Protocol1_19_4To1_19_3(), ProtocolVersion.v1_19_3, ProtocolVersion.v1_19_4);
 
-        protocolManager.registerProtocol(new Protocol1_19_4To1_20(), ProtocolVersion.v1_19_4, ProtocolVersion.v1_20);
-        protocolManager.registerProtocol(new Protocol1_20To1_20_2(), ProtocolVersion.v1_20, ProtocolVersion.v1_20_2);
-        protocolManager.registerProtocol(new Protocol1_20_2To1_20_3(), ProtocolVersion.v1_20_2, ProtocolVersion.v1_20_3);
-        protocolManager.registerProtocol(new Protocol1_20_3To1_20_5(), ProtocolVersion.v1_20_3, ProtocolVersion.v1_20_5);
+        protocolManager.registerProtocol(new Protocol1_20To1_19_4(), ProtocolVersion.v1_19_4, ProtocolVersion.v1_20);
+        protocolManager.registerProtocol(new Protocol1_20_2To1_20(), ProtocolVersion.v1_20, ProtocolVersion.v1_20_2);
+        protocolManager.registerProtocol(new Protocol1_20_3To1_20_2(), ProtocolVersion.v1_20_2, ProtocolVersion.v1_20_3);
+        protocolManager.registerProtocol(new Protocol1_20_5To1_20_3(), ProtocolVersion.v1_20_3, ProtocolVersion.v1_20_5);
     }
 
     /**

common/src/main/java/com/viaversion/viabackwards/api/data/BackwardsMappingData.java

@@ -30,10 +30,10 @@ import com.viaversion.viaversion.api.protocol.Protocol;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectArrayMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectOpenHashMap;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.nbt.tag.Tag;
 import com.viaversion.viaversion.util.Key;
 import java.util.HashMap;
 import java.util.Map;
@@ -41,7 +41,7 @@ import java.util.logging.Level;
 import java.util.logging.Logger;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public class BackwardsMappings extends MappingDataBase {
+public class BackwardsMappingData extends MappingDataBase {
 
     private final Class<? extends Protocol<?, ?, ?, ?>> vvProtocolClass;
     protected Int2ObjectMap<MappedItem> backwardsItemMappings;
@@ -49,11 +49,11 @@ public class BackwardsMappings extends MappingDataBase {
     private Map<String, String> entityNames;
     private Int2ObjectMap<String> enchantmentNames;
 
-    public BackwardsMappings(final String unmappedVersion, final String mappedVersion) {
+    public BackwardsMappingData(final String unmappedVersion, final String mappedVersion) {
         this(unmappedVersion, mappedVersion, null);
     }
 
-    public BackwardsMappings(final String unmappedVersion, final String mappedVersion, @Nullable final Class<? extends Protocol<?, ?, ?, ?>> vvProtocolClass) {
+    public BackwardsMappingData(final String unmappedVersion, final String mappedVersion, @Nullable final Class<? extends Protocol<?, ?, ?, ?>> vvProtocolClass) {
         super(unmappedVersion, mappedVersion);
         Preconditions.checkArgument(vvProtocolClass == null || !vvProtocolClass.isAssignableFrom(BackwardsProtocol.class));
         this.vvProtocolClass = vvProtocolClass;

common/src/main/java/com/viaversion/viabackwards/api/data/BackwardsMappingDataLoader.java

@@ -19,8 +19,8 @@ package com.viaversion.viabackwards.api.data;
 
 import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viaversion.api.data.MappingDataLoader;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.Tag;
 import java.io.File;
 import java.io.IOException;
 import java.util.Map;

common/src/main/java/com/viaversion/viabackwards/api/data/MappedItem.java

@@ -17,7 +17,7 @@
  */
 package com.viaversion.viabackwards.api.data;
 
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.Tag;
 import com.viaversion.viaversion.util.ComponentUtil;
 import org.checkerframework.checker.nullness.qual.Nullable;
 

common/src/main/java/com/viaversion/viabackwards/api/data/MappedLegacyBlockItem.java

@@ -17,7 +17,7 @@
  */
 package com.viaversion.viabackwards.api.data;
 
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
+import com.viaversion.nbt.tag.CompoundTag;
 import com.viaversion.viaversion.util.IdAndData;
 import org.checkerframework.checker.nullness.qual.Nullable;
 

common/src/main/java/com/viaversion/viabackwards/api/entities/storage/EntityObjectData.java

@@ -19,7 +19,7 @@ package com.viaversion.viabackwards.api.entities.storage;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
 
-public class EntityObjectData extends EntityData {
+public class EntityObjectData extends EntityReplacement {
     private final int objectData;
 
     public EntityObjectData(BackwardsProtocol<?, ?, ?, ?> protocol, String key, int id, int replacementId, int objectData) {

common/src/main/java/com/viaversion/viabackwards/api/entities/storage/EntityPositionHandler.java

@@ -17,13 +17,13 @@
  */
 package com.viaversion.viabackwards.api.entities.storage;
 
-import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.api.rewriters.EntityRewriterBase;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.data.entity.StoredEntityData;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.util.ProtocolLogger;
 import java.util.function.Supplier;
 
 public class EntityPositionHandler {
@@ -41,22 +41,23 @@ public class EntityPositionHandler {
         this.storageSupplier = storageSupplier;
     }
 
-    public void cacheEntityPosition(PacketWrapper wrapper, boolean create, boolean relative) throws Exception {
+    public void cacheEntityPosition(PacketWrapper wrapper, boolean create, boolean relative) {
         cacheEntityPosition(wrapper,
-            wrapper.get(Type.DOUBLE, 0), wrapper.get(Type.DOUBLE, 1), wrapper.get(Type.DOUBLE, 2), create, relative);
+            wrapper.get(Types.DOUBLE, 0), wrapper.get(Types.DOUBLE, 1), wrapper.get(Types.DOUBLE, 2), create, relative);
     }
 
-    public void cacheEntityPosition(PacketWrapper wrapper, double x, double y, double z, boolean create, boolean relative) throws Exception {
-        int entityId = wrapper.get(Type.VAR_INT, 0);
+    public void cacheEntityPosition(PacketWrapper wrapper, double x, double y, double z, boolean create, boolean relative) {
+        int entityId = wrapper.get(Types.VAR_INT, 0);
         StoredEntityData storedEntity = entityRewriter.tracker(wrapper.user()).entityData(entityId);
         if (storedEntity == null) {
             if (Via.getManager().isDebug()) { // There is too many plugins violating this out there, and reading seems to be hard! :>
-                ViaBackwards.getPlatform().getLogger().warning("Stored entity with id " + entityId + " missing at position: " + x + " - " + y + " - " + z + " in " + storageClass.getSimpleName());
+                ProtocolLogger logger = entityRewriter.protocol().getLogger();
+                logger.warning("Stored entity with id " + entityId + " missing at position: " + x + " - " + y + " - " + z + " in " + storageClass.getSimpleName());
                 if (entityId == -1 && x == 0 && y == 0 && z == 0) {
-                    ViaBackwards.getPlatform().getLogger().warning("DO NOT REPORT THIS TO VIA, THIS IS A PLUGIN ISSUE");
+                    logger.warning("DO NOT REPORT THIS TO VIA, THIS IS A PLUGIN ISSUE");
                 } else if (!warnedForMissingEntity) {
                     warnedForMissingEntity = true;
-                    ViaBackwards.getPlatform().getLogger().warning("This is very likely caused by a plugin sending a teleport packet for an entity outside of the player's range.");
+                    logger.warning("This is very likely caused by a plugin sending a teleport packet for an entity outside of the player's range.");
                 }
             }
             return;
@@ -69,7 +70,7 @@ public class EntityPositionHandler {
         } else {
             positionStorage = storedEntity.get(storageClass);
             if (positionStorage == null) {
-                ViaBackwards.getPlatform().getLogger().warning("Stored entity with id " + entityId + " missing " + storageClass.getSimpleName());
+                entityRewriter.protocol().getLogger().warning("Stored entity with id " + entityId + " missing " + storageClass.getSimpleName());
                 return;
             }
         }
@@ -81,7 +82,7 @@ public class EntityPositionHandler {
         StoredEntityData storedEntity = entityRewriter.tracker(user).entityData(entityId);
         EntityPositionStorage entityStorage;
         if (storedEntity == null || (entityStorage = storedEntity.get(EntityPositionStorage.class)) == null) {
-            ViaBackwards.getPlatform().getLogger().warning("Untracked entity with id " + entityId + " in " + storageClass.getSimpleName());
+            entityRewriter.protocol().getLogger().warning("Untracked entity with id " + entityId + " in " + storageClass.getSimpleName());
             return null;
         }
         return entityStorage;
@@ -98,8 +99,8 @@ public class EntityPositionHandler {
         }
         double pitch = -Math.asin(dY / r) / Math.PI * 180;
 
-        wrapper.write(Type.BYTE, (byte) (yaw * 256f / 360f));
-        wrapper.write(Type.BYTE, (byte) (pitch * 256f / 360f));
+        wrapper.write(Types.BYTE, (byte) (yaw * 256f / 360f));
+        wrapper.write(Types.BYTE, (byte) (pitch * 256f / 360f));
     }
 
     public static void writeFacingDegrees(PacketWrapper wrapper, double x, double y, double z, double targetX, double targetY, double targetZ) {
@@ -113,7 +114,7 @@ public class EntityPositionHandler {
         }
         double pitch = -Math.asin(dY / r) / Math.PI * 180;
 
-        wrapper.write(Type.FLOAT, (float) yaw);
-        wrapper.write(Type.FLOAT, (float) pitch);
+        wrapper.write(Types.FLOAT, (float) yaw);
+        wrapper.write(Types.FLOAT, (float) pitch);
     }
 }

common/src/main/java/com/viaversion/viabackwards/api/entities/storage/EntityPositionStorage.java

@@ -22,15 +22,15 @@ public abstract class EntityPositionStorage {
     private double y;
     private double z;
 
-    public double getX() {
+    public double x() {
         return x;
     }
 
-    public double getY() {
+    public double y() {
         return y;
     }
 
-    public double getZ() {
+    public double z() {
         return z;
     }
 

common/src/main/java/com/viaversion/viabackwards/api/entities/storage/EntityReplacement.java

@@ -20,12 +20,12 @@ package com.viaversion.viabackwards.api.entities.storage;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
+import com.viaversion.nbt.tag.StringTag;
 import com.viaversion.viaversion.util.ComponentUtil;
 import java.util.Locale;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public class EntityData {
+public class EntityReplacement {
     private final BackwardsProtocol<?, ?, ?, ?> protocol;
     private final int id;
     private final int replacementId;
@@ -33,33 +33,33 @@ public class EntityData {
     private ComponentType componentType = ComponentType.NONE;
     private MetaCreator defaultMeta;
 
-    public EntityData(BackwardsProtocol<?, ?, ?, ?> protocol, EntityType type, int replacementId) {
+    public EntityReplacement(BackwardsProtocol<?, ?, ?, ?> protocol, EntityType type, int replacementId) {
         this(protocol, type.name(), type.getId(), replacementId);
     }
 
-    public EntityData(BackwardsProtocol<?, ?, ?, ?> protocol, String key, int id, int replacementId) {
+    public EntityReplacement(BackwardsProtocol<?, ?, ?, ?> protocol, String key, int id, int replacementId) {
         this.protocol = protocol;
         this.id = id;
         this.replacementId = replacementId;
         this.key = key.toLowerCase(Locale.ROOT);
     }
 
-    public EntityData jsonName() {
+    public EntityReplacement jsonName() {
         this.componentType = ComponentType.JSON;
         return this;
     }
 
-    public EntityData tagName() {
+    public EntityReplacement tagName() {
         this.componentType = ComponentType.TAG;
         return this;
     }
 
-    public EntityData plainName() {
+    public EntityReplacement plainName() {
         this.componentType = ComponentType.PLAIN;
         return this;
     }
 
-    public EntityData spawnMetadata(MetaCreator handler) {
+    public EntityReplacement spawnMetadata(MetaCreator handler) {
         this.defaultMeta = handler;
         return this;
     }

common/src/main/java/com/viaversion/viabackwards/api/entities/storage/PlayerPositionStorage.java

@@ -19,7 +19,7 @@ package com.viaversion.viabackwards.api.entities.storage;
 
 import com.viaversion.viaversion.api.connection.StorableObject;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 
 public abstract class PlayerPositionStorage implements StorableObject {
     private double x;
@@ -29,15 +29,15 @@ public abstract class PlayerPositionStorage implements StorableObject {
     protected PlayerPositionStorage() {
     }
 
-    public double getX() {
+    public double x() {
         return x;
     }
 
-    public double getY() {
+    public double y() {
         return y;
     }
 
-    public double getZ() {
+    public double z() {
         return z;
     }
 
@@ -53,8 +53,8 @@ public abstract class PlayerPositionStorage implements StorableObject {
         this.z = z;
     }
 
-    public void setCoordinates(PacketWrapper wrapper, boolean relative) throws Exception {
-        setCoordinates(wrapper.get(Type.DOUBLE, 0), wrapper.get(Type.DOUBLE, 1), wrapper.get(Type.DOUBLE, 2), relative);
+    public void setCoordinates(PacketWrapper wrapper, boolean relative) {
+        setCoordinates(wrapper.get(Types.DOUBLE, 0), wrapper.get(Types.DOUBLE, 1), wrapper.get(Types.DOUBLE, 2), relative);
     }
 
     public void setCoordinates(double x, double y, double z, boolean relative) {

common/src/main/java/com/viaversion/viabackwards/api/entities/storage/WrappedMetadata.java

@@ -18,22 +18,17 @@
 
 package com.viaversion.viabackwards.api.entities.storage;
 
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
 import java.util.List;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public final class WrappedMetadata {
-    private final List<Metadata> metadataList;
+public record WrappedMetadata(List<EntityData> metadataList) {
 
-    public WrappedMetadata(List<Metadata> metadataList) {
-        this.metadataList = metadataList;
-    }
-
-    public boolean has(Metadata data) {
+    public boolean has(EntityData data) {
         return this.metadataList.contains(data);
     }
 
-    public void remove(Metadata data) {
+    public void remove(EntityData data) {
         this.metadataList.remove(data);
     }
 
@@ -41,25 +36,16 @@ public final class WrappedMetadata {
         metadataList.removeIf(meta -> meta.id() == index);
     }
 
-    public void add(Metadata data) {
+    public void add(EntityData data) {
         this.metadataList.add(data);
     }
 
-    public @Nullable Metadata get(int index) {
-        for (Metadata meta : this.metadataList) {
+    public @Nullable EntityData get(int index) {
+        for (EntityData meta : this.metadataList) {
             if (index == meta.id()) {
                 return meta;
             }
         }
         return null;
     }
-
-    public List<Metadata> metadataList() {
-        return metadataList;
-    }
-
-    @Override
-    public String toString() {
-        return "MetaStorage{" + "metaDataList=" + metadataList + '}';
-    }
 }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsItemRewriter.java

@@ -25,14 +25,15 @@ import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ByteTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.IntTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.ByteTag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.IntTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.nbt.tag.Tag;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public class BackwardsItemRewriter<C extends ClientboundPacketType, S extends ServerboundPacketType,
@@ -106,7 +107,7 @@ public class BackwardsItemRewriter<C extends ClientboundPacketType, S extends Se
         }
         if (!display.contains("Name")) {
             display.put("Name", new StringTag(data.jsonName()));
-            display.put(nbtTagName("customName"), new ByteTag());
+            display.put(nbtTagName("customName"), new ByteTag(false));
         }
         return item;
     }
@@ -131,16 +132,16 @@ public class BackwardsItemRewriter<C extends ClientboundPacketType, S extends Se
             @Override
             public void register() {
                 handler(wrapper -> {
-                    wrapper.passthrough(Type.BOOLEAN); // Reset/clear
-                    final int size = wrapper.passthrough(Type.VAR_INT); // Mapping size
+                    wrapper.passthrough(Types.BOOLEAN); // Reset/clear
+                    final int size = wrapper.passthrough(Types.VAR_INT); // Mapping size
                     for (int i = 0; i < size; i++) {
-                        wrapper.passthrough(Type.STRING); // Identifier
-                        wrapper.passthrough(Type.OPTIONAL_STRING); // Parent
+                        wrapper.passthrough(Types.STRING); // Identifier
+                        wrapper.passthrough(Types.OPTIONAL_STRING); // Parent
 
                         // Display data
-                        if (wrapper.passthrough(Type.BOOLEAN)) {
-                            final JsonElement title = wrapper.passthrough(Type.COMPONENT);
-                            final JsonElement description = wrapper.passthrough(Type.COMPONENT);
+                        if (wrapper.passthrough(Types.BOOLEAN)) {
+                            final JsonElement title = wrapper.passthrough(Types.COMPONENT);
+                            final JsonElement description = wrapper.passthrough(Types.COMPONENT);
                             final TranslatableRewriter<C> translatableRewriter = protocol.getTranslatableRewriter();
                             if (translatableRewriter != null) {
                                 translatableRewriter.processText(wrapper.user(), title);
@@ -150,20 +151,20 @@ public class BackwardsItemRewriter<C extends ClientboundPacketType, S extends Se
                             final Item icon = handleItemToClient(wrapper.user(), wrapper.read(itemType()));
                             wrapper.write(mappedItemType(), icon);
 
-                            wrapper.passthrough(Type.VAR_INT); // Frame type
-                            int flags = wrapper.passthrough(Type.INT); // Flags
+                            wrapper.passthrough(Types.VAR_INT); // Frame type
+                            int flags = wrapper.passthrough(Types.INT); // Flags
                             if ((flags & 1) != 0) {
-                                wrapper.passthrough(Type.STRING); // Background texture
+                                wrapper.passthrough(Types.STRING); // Background texture
                             }
-                            wrapper.passthrough(Type.FLOAT); // X
-                            wrapper.passthrough(Type.FLOAT); // Y
+                            wrapper.passthrough(Types.FLOAT); // X
+                            wrapper.passthrough(Types.FLOAT); // Y
                         }
 
-                        wrapper.passthrough(Type.STRING_ARRAY); // Criteria
+                        wrapper.passthrough(Types.STRING_ARRAY); // Criteria
 
-                        final int arrayLength = wrapper.passthrough(Type.VAR_INT);
+                        final int arrayLength = wrapper.passthrough(Types.VAR_INT);
                         for (int array = 0; array < arrayLength; array++) {
-                            wrapper.passthrough(Type.STRING_ARRAY); // String array
+                            wrapper.passthrough(Types.STRING_ARRAY); // String array
                         }
                     }
                 });
@@ -175,16 +176,16 @@ public class BackwardsItemRewriter<C extends ClientboundPacketType, S extends Se
     public void registerAdvancements1_20_3(final C packetType) {
         // Insert translatable rewriter
         protocol.registerClientbound(packetType, wrapper -> {
-            wrapper.passthrough(Type.BOOLEAN); // Reset/clear
-            final int size = wrapper.passthrough(Type.VAR_INT); // Mapping size
+            wrapper.passthrough(Types.BOOLEAN); // Reset/clear
+            final int size = wrapper.passthrough(Types.VAR_INT); // Mapping size
             for (int i = 0; i < size; i++) {
-                wrapper.passthrough(Type.STRING); // Identifier
-                wrapper.passthrough(Type.OPTIONAL_STRING); // Parent
+                wrapper.passthrough(Types.STRING); // Identifier
+                wrapper.passthrough(Types.OPTIONAL_STRING); // Parent
 
                 // Display data
-                if (wrapper.passthrough(Type.BOOLEAN)) {
-                    final Tag title = wrapper.passthrough(Type.TAG);
-                    final Tag description = wrapper.passthrough(Type.TAG);
+                if (wrapper.passthrough(Types.BOOLEAN)) {
+                    final Tag title = wrapper.passthrough(Types.TAG);
+                    final Tag description = wrapper.passthrough(Types.TAG);
                     final TranslatableRewriter<C> translatableRewriter = protocol.getTranslatableRewriter();
                     if (translatableRewriter != null) {
                         translatableRewriter.processTag(wrapper.user(), title);
@@ -194,21 +195,21 @@ public class BackwardsItemRewriter<C extends ClientboundPacketType, S extends Se
                     final Item icon = handleItemToClient(wrapper.user(), wrapper.read(itemType()));
                     wrapper.write(mappedItemType(), icon);
 
-                    wrapper.passthrough(Type.VAR_INT); // Frame type
-                    final int flags = wrapper.passthrough(Type.INT);
+                    wrapper.passthrough(Types.VAR_INT); // Frame type
+                    final int flags = wrapper.passthrough(Types.INT);
                     if ((flags & 1) != 0) {
-                        wrapper.passthrough(Type.STRING); // Background texture
+                        wrapper.passthrough(Types.STRING); // Background texture
                     }
-                    wrapper.passthrough(Type.FLOAT); // X
-                    wrapper.passthrough(Type.FLOAT); // Y
+                    wrapper.passthrough(Types.FLOAT); // X
+                    wrapper.passthrough(Types.FLOAT); // Y
                 }
 
-                final int requirements = wrapper.passthrough(Type.VAR_INT);
+                final int requirements = wrapper.passthrough(Types.VAR_INT);
                 for (int array = 0; array < requirements; array++) {
-                    wrapper.passthrough(Type.STRING_ARRAY);
+                    wrapper.passthrough(Types.STRING_ARRAY);
                 }
 
-                wrapper.passthrough(Type.BOOLEAN); // Send telemetry
+                wrapper.passthrough(Types.BOOLEAN); // Send telemetry
             }
         });
     }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsItemRewriterBase.java

@@ -23,10 +23,10 @@ import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.nbt.tag.Tag;
 import com.viaversion.viaversion.rewriter.ItemRewriter;
 import java.util.ArrayList;
 import java.util.List;

common/src/main/java/com/viaversion/viabackwards/api/rewriters/BackwardsStructuredItemRewriter.java

@@ -18,7 +18,7 @@
 package com.viaversion.viabackwards.api.rewriters;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viabackwards.api.data.MappedItem;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.data.StructuredData;
@@ -28,10 +28,10 @@ import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.IntTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.IntTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.Tag;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public class BackwardsStructuredItemRewriter<C extends ClientboundPacketType, S extends ServerboundPacketType,
@@ -79,7 +79,7 @@ public class BackwardsStructuredItemRewriter<C extends ClientboundPacketType, S
             }
         }
 
-        final BackwardsMappings mappingData = protocol.getMappingData();
+        final BackwardsMappingData mappingData = protocol.getMappingData();
         final MappedItem mappedItem = mappingData != null ? mappingData.getMappedItem(item.identifier()) : null;
         if (mappedItem == null) {
             // Just rewrite the id
@@ -113,7 +113,7 @@ public class BackwardsStructuredItemRewriter<C extends ClientboundPacketType, S
             return null;
         }
 
-        final BackwardsMappings mappingData = protocol.getMappingData();
+        final BackwardsMappingData mappingData = protocol.getMappingData();
         if (mappingData != null && mappingData.getItemMappings() != null) {
             item.setIdentifier(mappingData.getOldItemId(item.identifier()));
         }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/EnchantmentRewriter.java

@@ -18,10 +18,10 @@
 package com.viaversion.viabackwards.api.rewriters;
 
 import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.StringTag;
 import com.viaversion.viaversion.util.ComponentUtil;
 import com.viaversion.viaversion.util.Key;
 import java.util.ArrayList;
@@ -146,29 +146,18 @@ public class EnchantmentRewriter {
     }
 
     public static String getRomanNumber(int number) {
-        switch (number) {
-            case 1:
-                return "I";
-            case 2:
-                return "II";
-            case 3:
-                return "III";
-            case 4:
-                return "IV";
-            case 5:
-                return "V";
-            case 6:
-                return "VI";
-            case 7:
-                return "VII";
-            case 8:
-                return "VIII";
-            case 9:
-                return "IX";
-            case 10:
-                return "X";
-            default:
-                return Integer.toString(number);
-        }
+        return switch (number) {
+            case 1 -> "I";
+            case 2 -> "II";
+            case 3 -> "III";
+            case 4 -> "IV";
+            case 5 -> "V";
+            case 6 -> "VI";
+            case 7 -> "VII";
+            case 8 -> "VIII";
+            case 9 -> "IX";
+            case 10 -> "X";
+            default -> Integer.toString(number);
+        };
     }
 }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/EntityRewriter.java

@@ -20,21 +20,22 @@ package com.viaversion.viabackwards.api.rewriters;
 import com.viaversion.viabackwards.api.BackwardsProtocol;
 import com.viaversion.viaversion.api.data.entity.EntityTracker;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityDataType;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.version.Types1_14;
 
 public abstract class EntityRewriter<C extends ClientboundPacketType, T extends BackwardsProtocol<C, ?, ?, ?>> extends EntityRewriterBase<C, T> {
 
     protected EntityRewriter(T protocol) {
-        this(protocol, Types1_14.META_TYPES.optionalComponentType, Types1_14.META_TYPES.booleanType);
+        this(protocol, Types1_14.ENTITY_DATA_TYPES.optionalComponentType, Types1_14.ENTITY_DATA_TYPES.booleanType);
     }
 
-    protected EntityRewriter(T protocol, MetaType displayType, MetaType displayVisibilityType) {
+    protected EntityRewriter(T protocol, EntityDataType displayType, EntityDataType displayVisibilityType) {
         super(protocol, displayType, 2, displayVisibilityType, 3);
     }
 
@@ -43,15 +44,15 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - Entity UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Pitch
-                map(Type.BYTE); // 7 - Yaw
-                map(Type.INT); // 8 - Data
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - Entity UUID
+                map(Types.VAR_INT); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Pitch
+                map(Types.BYTE); // 7 - Yaw
+                map(Types.INT); // 8 - Data
                 handler(getSpawnTrackerWithDataHandler(fallingBlockType));
             }
         });
@@ -62,16 +63,16 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // Entity id
-                map(Type.UUID); // Entity UUID
-                map(Type.VAR_INT); // Entity type
-                map(Type.DOUBLE); // X
-                map(Type.DOUBLE); // Y
-                map(Type.DOUBLE); // Z
-                map(Type.BYTE); // Pitch
-                map(Type.BYTE); // Yaw
-                map(Type.BYTE); // Head yaw
-                map(Type.VAR_INT); // Data
+                map(Types.VAR_INT); // Entity id
+                map(Types.UUID); // Entity UUID
+                map(Types.VAR_INT); // Entity type
+                map(Types.DOUBLE); // X
+                map(Types.DOUBLE); // Y
+                map(Types.DOUBLE); // Z
+                map(Types.BYTE); // Pitch
+                map(Types.BYTE); // Yaw
+                map(Types.BYTE); // Head yaw
+                map(Types.VAR_INT); // Data
                 handler(getSpawnTrackerWithDataHandler1_19(fallingBlockType));
             }
         });
@@ -82,8 +83,8 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
             // Check against the UNMAPPED entity type
             EntityType entityType = trackAndMapEntity(wrapper);
             if (entityType == fallingBlockType) {
-                int blockState = wrapper.get(Type.INT, 0);
-                wrapper.set(Type.INT, 0, protocol.getMappingData().getNewBlockStateId(blockState));
+                int blockState = wrapper.get(Types.INT, 0);
+                wrapper.set(Types.INT, 0, protocol.getMappingData().getNewBlockStateId(blockState));
             }
         };
     }
@@ -97,8 +98,8 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
             // Check against the UNMAPPED entity type
             EntityType entityType = trackAndMapEntity(wrapper);
             if (entityType == fallingBlockType) {
-                int blockState = wrapper.get(Type.VAR_INT, 2);
-                wrapper.set(Type.VAR_INT, 2, protocol.getMappingData().getNewBlockStateId(blockState));
+                int blockState = wrapper.get(Types.VAR_INT, 2);
+                wrapper.set(Types.VAR_INT, 2, protocol.getMappingData().getNewBlockStateId(blockState));
             }
         };
     }
@@ -107,9 +108,9 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Entity UUID
-                map(Type.VAR_INT); // 2 - Entity Type
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Entity UUID
+                map(Types.VAR_INT); // 2 - Entity Type
                 handler(wrapper -> trackAndMapEntity(wrapper));
             }
         });
@@ -123,7 +124,7 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
     public PacketHandler worldTrackerHandlerByKey() {
         return wrapper -> {
             EntityTracker tracker = tracker(wrapper.user());
-            String world = wrapper.get(Type.STRING, 1);
+            String world = wrapper.get(Types.STRING, 1);
             if (tracker.currentWorld() != null && !tracker.currentWorld().equals(world)) {
                 tracker.clearEntities();
                 tracker.trackClientEntity();
@@ -138,14 +139,14 @@ public abstract class EntityRewriter<C extends ClientboundPacketType, T extends
      * @param wrapper packet wrapper
      * @return unmapped (!) entity type
      */
-    protected EntityType trackAndMapEntity(PacketWrapper wrapper) throws Exception {
-        int typeId = wrapper.get(Type.VAR_INT, 1);
+    protected EntityType trackAndMapEntity(PacketWrapper wrapper) {
+        int typeId = wrapper.get(Types.VAR_INT, 1);
         EntityType entityType = typeFromId(typeId);
-        tracker(wrapper.user()).addEntity(wrapper.get(Type.VAR_INT, 0), entityType);
+        tracker(wrapper.user()).addEntity(wrapper.get(Types.VAR_INT, 0), entityType);
 
         int mappedTypeId = newEntityId(entityType.getId());
         if (typeId != mappedTypeId) {
-            wrapper.set(Type.VAR_INT, 1, mappedTypeId);
+            wrapper.set(Types.VAR_INT, 1, mappedTypeId);
         }
 
         return entityType;

common/src/main/java/com/viaversion/viabackwards/api/rewriters/EntityRewriterBase.java

@@ -20,7 +20,7 @@ package com.viaversion.viabackwards.api.rewriters;
 import com.google.common.base.Preconditions;
 import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.entities.storage.EntityData;
+import com.viaversion.viabackwards.api.entities.storage.EntityReplacement;
 import com.viaversion.viabackwards.api.entities.storage.WrappedMetadata;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.data.entity.StoredEntityData;
@@ -28,16 +28,17 @@ import com.viaversion.viaversion.api.data.entity.TrackedEntity;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.Particle;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityDataType;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectOpenHashMap;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.rewriter.EntityRewriter;
-import com.viaversion.viaversion.rewriter.meta.MetaHandlerEvent;
+import com.viaversion.viaversion.rewriter.entitydata.EntityDataHandlerEvent;
 import java.util.List;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
@@ -48,14 +49,14 @@ import org.checkerframework.checker.nullness.qual.Nullable;
  * @see LegacyEntityRewriter
  */
 public abstract class EntityRewriterBase<C extends ClientboundPacketType, T extends BackwardsProtocol<C, ?, ?, ?>> extends EntityRewriter<C, T> {
-    private final Int2ObjectMap<EntityData> entityDataMappings = new Int2ObjectOpenHashMap<>();
-    private final MetaType displayNameMetaType;
-    private final MetaType displayVisibilityMetaType;
+    private final Int2ObjectMap<EntityReplacement> entityDataMappings = new Int2ObjectOpenHashMap<>();
+    private final EntityDataType displayNameMetaType;
+    private final EntityDataType displayVisibilityMetaType;
     private final int displayNameIndex;
     private final int displayVisibilityIndex;
 
-    EntityRewriterBase(T protocol, MetaType displayNameMetaType, int displayNameIndex,
-                       MetaType displayVisibilityMetaType, int displayVisibilityIndex) {
+    EntityRewriterBase(T protocol, EntityDataType displayNameMetaType, int displayNameIndex,
+                       EntityDataType displayVisibilityMetaType, int displayVisibilityIndex) {
         super(protocol, false);
         this.displayNameMetaType = displayNameMetaType;
         this.displayNameIndex = displayNameIndex;
@@ -64,48 +65,48 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
     }
 
     @Override
-    public void handleMetadata(int entityId, List<Metadata> metadataList, UserConnection connection) {
+    public void handleEntityData(int entityId, List<EntityData> entityDataList, UserConnection connection) {
         final TrackedEntity entity = tracker(connection).entity(entityId);
-        final boolean initialMetadata = !(entity != null && entity.hasSentMetadata());
+        final boolean initialMetadata = !(entity != null && entity.hasSentEntityData());
 
-        super.handleMetadata(entityId, metadataList, connection);
+        super.handleEntityData(entityId, entityDataList, connection);
 
         if (entity == null) {
             return; // Don't handle untracked entities - basically always the fault of a plugin sending virtual entities through concurrency-unsafe handling
         }
 
         // Set the mapped entity name if there is no custom name set already
-        final EntityData entityData = entityDataForType(entity.entityType());
+        final EntityReplacement entityMapping = entityDataForType(entity.entityType());
         final Object displayNameObject;
-        if (entityData != null && (displayNameObject = entityData.entityName()) != null) {
-            final Metadata displayName = getMeta(displayNameIndex, metadataList);
+        if (entityMapping != null && (displayNameObject = entityMapping.entityName()) != null) {
+            final EntityData displayName = getData(displayNameIndex, entityDataList);
             if (initialMetadata) {
                 if (displayName == null) {
                     // Add it as new metadata
-                    metadataList.add(new Metadata(displayNameIndex, displayNameMetaType, displayNameObject));
-                    addDisplayVisibilityMeta(metadataList);
+                    entityDataList.add(new EntityData(displayNameIndex, displayNameMetaType, displayNameObject));
+                    addDisplayVisibilityMeta(entityDataList);
                 } else if (displayName.getValue() == null || displayName.getValue().toString().isEmpty()) {
                     // Overwrite the existing null/empty display name
                     displayName.setValue(displayNameObject);
-                    addDisplayVisibilityMeta(metadataList);
+                    addDisplayVisibilityMeta(entityDataList);
                 }
             } else if (displayName != null && (displayName.getValue() == null || displayName.getValue().toString().isEmpty())) {
                 // Overwrite null/empty display name
                 displayName.setValue(displayNameObject);
-                addDisplayVisibilityMeta(metadataList);
+                addDisplayVisibilityMeta(entityDataList);
             }
         }
 
         // Add any other extra meta for mapped entities
-        if (entityData != null && entityData.hasBaseMeta() && initialMetadata) {
-            entityData.defaultMeta().createMeta(new WrappedMetadata(metadataList));
+        if (entityMapping != null && entityMapping.hasBaseMeta() && initialMetadata) {
+            entityMapping.defaultMeta().createMeta(new WrappedMetadata(entityDataList));
         }
     }
 
-    private void addDisplayVisibilityMeta(List<Metadata> metadataList) {
+    private void addDisplayVisibilityMeta(List<EntityData> metadataList) {
         if (alwaysShowOriginalMobName()) {
             removeMeta(displayVisibilityIndex, metadataList);
-            metadataList.add(new Metadata(displayVisibilityIndex, displayVisibilityMetaType, getDisplayVisibilityMetaValue()));
+            metadataList.add(new EntityData(displayVisibilityIndex, displayVisibilityMetaType, getDisplayVisibilityMetaValue()));
         }
     }
 
@@ -117,8 +118,8 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
         return ViaBackwards.getConfig().alwaysShowOriginalMobName();
     }
 
-    protected @Nullable Metadata getMeta(int metaIndex, List<Metadata> metadataList) {
-        for (Metadata metadata : metadataList) {
+    protected @Nullable EntityData getData(int metaIndex, List<EntityData> metadataList) {
+        for (EntityData metadata : metadataList) {
             if (metadata.id() == metaIndex) {
                 return metadata;
             }
@@ -126,7 +127,7 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
         return null;
     }
 
-    protected void removeMeta(int metaIndex, List<Metadata> metadataList) {
+    protected void removeMeta(int metaIndex, List<EntityData> metadataList) {
         metadataList.removeIf(meta -> meta.id() == metaIndex);
     }
 
@@ -134,11 +135,11 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
         return entityDataMappings.containsKey(type.getId());
     }
 
-    protected @Nullable EntityData entityDataForType(EntityType type) {
+    protected @Nullable EntityReplacement entityDataForType(EntityType type) {
         return entityDataMappings.get(type.getId());
     }
 
-    protected @Nullable StoredEntityData storedEntityData(MetaHandlerEvent event) {
+    protected @Nullable StoredEntityData storedEntityData(EntityDataHandlerEvent event) {
         return tracker(event.user()).entityData(event.entityId());
     }
 
@@ -151,27 +152,27 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
      * @return created entity data
      * @see #mapEntityType(EntityType, EntityType) for id only rewriting
      */
-    protected EntityData mapEntityTypeWithData(EntityType type, EntityType mappedType) {
+    protected EntityReplacement mapEntityTypeWithData(EntityType type, EntityType mappedType) {
         Preconditions.checkArgument(type.getClass() == mappedType.getClass(), "Both entity types need to be of the same class");
 
         // Already rewrite the id here
         int mappedReplacementId = newEntityId(mappedType.getId());
-        EntityData data = new EntityData(protocol, type, mappedReplacementId);
+        EntityReplacement data = new EntityReplacement(protocol, type, mappedReplacementId);
         mapEntityType(type.getId(), mappedReplacementId);
         entityDataMappings.put(type.getId(), data);
         return data;
     }
 
     public void registerMetaTypeHandler(
-        @Nullable MetaType itemType,
-        @Nullable MetaType blockStateType,
-        @Nullable MetaType optionalBlockStateType,
-        @Nullable MetaType particleType,
-        @Nullable MetaType componentType,
-        @Nullable MetaType optionalComponentType
+        @Nullable EntityDataType itemType,
+        @Nullable EntityDataType blockStateType,
+        @Nullable EntityDataType optionalBlockStateType,
+        @Nullable EntityDataType particleType,
+        @Nullable EntityDataType componentType,
+        @Nullable EntityDataType optionalComponentType
     ) {
         filter().handler((event, meta) -> {
-            MetaType type = meta.metaType();
+            EntityDataType type = meta.dataType();
             if (type == itemType) {
                 protocol.getItemRewriter().handleItemToClient(event.user(), meta.value());
             } else if (type == blockStateType) {
@@ -192,16 +193,16 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
     }
 
     public void registerMetaTypeHandler1_20_3(
-        @Nullable MetaType itemType,
-        @Nullable MetaType blockStateType,
-        @Nullable MetaType optionalBlockStateType,
-        @Nullable MetaType particleType,
-        @Nullable MetaType particlesType,
-        @Nullable MetaType componentType,
-        @Nullable MetaType optionalComponentType
+        @Nullable EntityDataType itemType,
+        @Nullable EntityDataType blockStateType,
+        @Nullable EntityDataType optionalBlockStateType,
+        @Nullable EntityDataType particleType,
+        @Nullable EntityDataType particlesType,
+        @Nullable EntityDataType componentType,
+        @Nullable EntityDataType optionalComponentType
     ) {
         filter().handler((event, meta) -> {
-            MetaType type = meta.metaType();
+            EntityDataType type = meta.dataType();
             if (type == itemType) {
                 meta.setValue(protocol.getItemRewriter().handleItemToClient(event.user(), meta.value()));
             } else if (type == blockStateType) {
@@ -229,12 +230,12 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
     protected PacketHandler getTrackerHandler(Type<? extends Number> intType, int typeIndex) {
         return wrapper -> {
             Number id = wrapper.get(intType, typeIndex);
-            tracker(wrapper.user()).addEntity(wrapper.get(Type.VAR_INT, 0), typeFromId(id.intValue()));
+            tracker(wrapper.user()).addEntity(wrapper.get(Types.VAR_INT, 0), typeFromId(id.intValue()));
         };
     }
 
     protected PacketHandler getTrackerHandler() {
-        return getTrackerHandler(Type.VAR_INT, 1);
+        return getTrackerHandler(Types.VAR_INT, 1);
     }
 
     protected PacketHandler getTrackerHandler(EntityType entityType, Type<? extends Number> intType) {
@@ -244,7 +245,7 @@ public abstract class EntityRewriterBase<C extends ClientboundPacketType, T exte
     protected PacketHandler getDimensionHandler(int index) {
         return wrapper -> {
             ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
-            int dimensionId = wrapper.get(Type.INT, index);
+            int dimensionId = wrapper.get(Types.INT, index);
             clientWorld.setEnvironment(dimensionId);
         };
     }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/LegacyBlockItemRewriter.java

@@ -21,7 +21,7 @@ package com.viaversion.viabackwards.api.rewriters;
 import com.viaversion.viabackwards.api.BackwardsProtocol;
 import com.viaversion.viabackwards.api.data.MappedLegacyBlockItem;
 import com.viaversion.viabackwards.api.data.BackwardsMappingDataLoader;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data.BlockColors;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.data.BlockColors1_11_1;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
 import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
@@ -35,18 +35,19 @@ import com.viaversion.viaversion.api.protocol.packet.ServerboundPacketType;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectOpenHashMap;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.libs.gson.JsonObject;
 import com.viaversion.viaversion.libs.gson.JsonPrimitive;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ByteTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.IntTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ShortTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.ByteTag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.IntTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.ShortTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.nbt.tag.Tag;
 import com.viaversion.viaversion.util.ComponentUtil;
 import java.util.HashMap;
 import java.util.Map;
@@ -78,7 +79,7 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
     }
 
     protected LegacyBlockItemRewriter(T protocol, String name) {
-        this(protocol, name, Type.ITEM1_8, Type.ITEM1_8_SHORT_ARRAY);
+        this(protocol, name, Types.ITEM1_8, Types.ITEM1_8_SHORT_ARRAY);
     }
 
     private void addMappings(MappedLegacyBlockItem.Type type, JsonObject object, Int2ObjectMap<MappedLegacyBlockItem> mappings) {
@@ -105,7 +106,7 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
                 unmappedId = Integer.parseInt(key.substring(0, dataSeparatorIndex));
                 unmappedId = IdAndData.toRawData(unmappedId, unmappedData);
             } else {
-                unmappedId = IdAndData.toRawData(Integer.parseInt(key));
+                unmappedId = IdAndData.toRawData(Integer.parseInt(key), -1);
             }
 
             mappings.put(unmappedId, new MappedLegacyBlockItem(id, data, name, type));
@@ -120,12 +121,12 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
         // Special block color handling
         if (name != null && name.contains("%color%")) {
             for (int i = from; i <= to; i++) {
-                mappings.put(IdAndData.toRawData(i), new MappedLegacyBlockItem(id, data, name.replace("%color%", BlockColors.get(i - from)), type));
+                mappings.put(IdAndData.toRawData(i, -1), new MappedLegacyBlockItem(id, data, name.replace("%color%", BlockColors1_11_1.get(i - from)), type));
             }
         } else {
             MappedLegacyBlockItem mappedBlockItem = new MappedLegacyBlockItem(id, data, name, type);
             for (int i = from; i <= to; i++) {
-                mappings.put(IdAndData.toRawData(i), mappedBlockItem);
+                mappings.put(IdAndData.toRawData(i, -1), mappedBlockItem);
             }
         }
     }
@@ -134,12 +135,12 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.POSITION1_8); // 0 - Block Position
-                map(Type.VAR_INT); // 1 - Block
+                map(Types.BLOCK_POSITION1_8); // 0 - Block Position
+                map(Types.VAR_INT); // 1 - Block
 
                 handler(wrapper -> {
-                    int idx = wrapper.get(Type.VAR_INT, 0);
-                    wrapper.set(Type.VAR_INT, 0, handleBlockId(idx));
+                    int idx = wrapper.get(Types.VAR_INT, 0);
+                    wrapper.set(Types.VAR_INT, 0, handleBlockId(idx));
                 });
             }
         });
@@ -149,12 +150,12 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT); // 0 - Chunk X
-                map(Type.INT); // 1 - Chunk Z
-                map(Type.BLOCK_CHANGE_RECORD_ARRAY);
+                map(Types.INT); // 0 - Chunk X
+                map(Types.INT); // 1 - Chunk Z
+                map(Types.BLOCK_CHANGE_ARRAY);
 
                 handler(wrapper -> {
-                    for (BlockChangeRecord record : wrapper.get(Type.BLOCK_CHANGE_RECORD_ARRAY, 0)) {
+                    for (BlockChangeRecord record : wrapper.get(Types.BLOCK_CHANGE_ARRAY, 0)) {
                         record.setBlockId(handleBlockId(record.getBlockId()));
                     }
                 });
@@ -195,13 +196,13 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
             if (nameTag == null) {
                 nameTag = new StringTag(data.getName());
                 display.put("Name", nameTag);
-                display.put(nbtTagName("customName"), new ByteTag());
+                display.put(nbtTagName("customName"), new ByteTag(false));
             }
 
             // Handle colors
             String value = nameTag.getValue();
             if (value.contains("%vb_color%")) {
-                display.putString("Name", value.replace("%vb_color%", BlockColors.get(originalData)));
+                display.putString("Name", value.replace("%vb_color%", BlockColors1_11_1.get(originalData)));
             }
         }
         return item;
@@ -226,14 +227,14 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
 
     public PacketHandler getFallingBlockHandler() {
         return wrapper -> {
-            final Optional<EntityTypes1_12.ObjectType> type = EntityTypes1_12.ObjectType.findById(wrapper.get(Type.BYTE, 0));
-            if (type.isPresent() && type.get() == EntityTypes1_12.ObjectType.FALLING_BLOCK) {
-                final int objectData = wrapper.get(Type.INT, 0);
+            final EntityTypes1_12.ObjectType type = EntityTypes1_12.ObjectType.findById(wrapper.get(Types.BYTE, 0));
+            if (type == EntityTypes1_12.ObjectType.FALLING_BLOCK) {
+                final int objectData = wrapper.get(Types.INT, 0);
 
                 final IdAndData block = handleBlock(objectData & 4095, objectData >> 12 & 15);
                 if (block == null) return;
 
-                wrapper.set(Type.INT, 0, block.getId() | block.getData() << 12);
+                wrapper.set(Types.INT, 0, block.getId() | block.getData() << 12);
             }
         };
     }
@@ -279,12 +280,12 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
             tags.put(pos, tag);
 
             // Handle given Block Entities
-            if (pos.getY() < 0 || pos.getY() > 255) continue; // 1.17
+            if (pos.y() < 0 || pos.y() > 255) continue; // 1.17
 
-            ChunkSection section = chunk.getSections()[pos.getY() >> 4];
+            ChunkSection section = chunk.getSections()[pos.y() >> 4];
             if (section == null) continue;
 
-            int block = section.palette(PaletteType.BLOCKS).idAt(pos.getX(), pos.getY() & 0xF, pos.getZ());
+            int block = section.palette(PaletteType.BLOCKS).idAt(pos.x(), pos.y() & 0xF, pos.z());
 
             MappedLegacyBlockItem settings = getMappedBlock(block);
             if (settings != null && settings.hasBlockEntityHandler()) {
@@ -361,68 +362,28 @@ public abstract class LegacyBlockItemRewriter<C extends ClientboundPacketType, S
 
     private @Nullable MappedLegacyBlockItem getMappedBlock(int id, int data) {
         MappedLegacyBlockItem mapping = blockReplacements.get(IdAndData.toRawData(id, data));
-        return mapping != null || data == 0 ? mapping : blockReplacements.get(IdAndData.toRawData(id));
+        return mapping != null ? mapping : blockReplacements.get(IdAndData.toRawData(id, -1));
     }
 
     private @Nullable MappedLegacyBlockItem getMappedItem(int id, int data) {
         MappedLegacyBlockItem mapping = itemReplacements.get(IdAndData.toRawData(id, data));
-        return mapping != null || data == 0 ? mapping : itemReplacements.get(IdAndData.toRawData(id));
+        return mapping != null ? mapping : itemReplacements.get(IdAndData.toRawData(id, -1));
     }
 
     private @Nullable MappedLegacyBlockItem getMappedBlock(int rawId) {
-        MappedLegacyBlockItem mapping = blockReplacements.get(rawId);
-        return mapping != null ? mapping : blockReplacements.get(IdAndData.removeData(rawId));
+        int id = IdAndData.getId(rawId);
+        int data = IdAndData.getData(rawId);
+        return getMappedBlock(id, data);
     }
 
     protected JsonObject readMappingsFile(final String name) {
         return BackwardsMappingDataLoader.INSTANCE.loadFromDataDir(name);
     }
 
-    private static final class Pos {
+    private record Pos(int x, short y, int z) {
 
-        private final int x;
-        private final short y;
-        private final int z;
-
-        private Pos(int x, int y, int z) {
-            this.x = x;
-            this.y = (short) y;
-            this.z = z;
-        }
-
-        public int getX() {
-            return x;
-        }
-
-        public int getY() {
-            return y;
-        }
-
-        public int getZ() {
-            return z;
-        }
-
-        @Override
-        public boolean equals(Object o) {
-            if (this == o) return true;
-            if (o == null || getClass() != o.getClass()) return false;
-            Pos pos = (Pos) o;
-            if (x != pos.x) return false;
-            if (y != pos.y) return false;
-            return z == pos.z;
-        }
-
-        @Override
-        public int hashCode() {
-            int result = x;
-            result = 31 * result + y;
-            result = 31 * result + z;
-            return result;
-        }
-
-        @Override
-        public String toString() {
-            return "Pos{" + "x=" + x + ", y=" + y + ", z=" + z + '}';
+        public Pos(int x, int y, int z) {
+            this(x, (short) y, z);
         }
     }
 }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/LegacyEnchantmentRewriter.java

@@ -18,13 +18,13 @@
 package com.viaversion.viabackwards.api.rewriters;
 
 import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ByteTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.IntTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.ByteTag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.IntTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.nbt.tag.Tag;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
@@ -69,10 +69,10 @@ public class LegacyEnchantmentRewriter {
         CompoundTag tag = item.tag();
         if (tag == null) return;
 
-        if (tag.contains(nbtTagName + "|ench")) {
+        if (tag.getListTag(nbtTagName + "|ench", CompoundTag.class) != null) {
             rewriteEnchantmentsToServer(tag, false);
         }
-        if (tag.contains(nbtTagName + "|StoredEnchantments")) {
+        if (tag.getListTag(nbtTagName + "|StoredEnchantments", CompoundTag.class) != null) {
             rewriteEnchantmentsToServer(tag, true);
         }
     }
@@ -107,7 +107,7 @@ public class LegacyEnchantmentRewriter {
                 dummyEnchantment.putShort("lvl", (short) 0);
 
                 enchantments.add(dummyEnchantment);
-                tag.put(nbtTagName + "|dummyEnchant", new ByteTag());
+                tag.put(nbtTagName + "|dummyEnchant", new ByteTag(false));
 
                 NumberTag hideFlags = tag.getNumberTag("HideFlags");
                 if (hideFlags == null) {
@@ -155,8 +155,8 @@ public class LegacyEnchantmentRewriter {
             }
 
             Tag hideFlags = tag.remove(nbtTagName + "|oldHideFlags");
-            if (hideFlags instanceof IntTag) {
-                tag.putInt("HideFlags", ((IntTag) hideFlags).asByte());
+            if (hideFlags instanceof IntTag intTag) {
+                tag.putInt("HideFlags", intTag.asByte());
             } else {
                 tag.remove("HideFlags");
             }
@@ -165,7 +165,7 @@ public class LegacyEnchantmentRewriter {
         CompoundTag display = tag.getCompoundTag("display");
         // A few null checks just to be safe, though they shouldn't actually be
         ListTag<StringTag> lore = display != null ? display.getListTag("Lore", StringTag.class) : null;
-        ListTag<CompoundTag> remappedEnchantments = tag.remove(nbtTagName + "|" + key);
+        ListTag<CompoundTag> remappedEnchantments = (ListTag<CompoundTag>) tag.remove(nbtTagName + "|" + key);
         for (CompoundTag enchantment : remappedEnchantments.copy()) {
             enchantments.add(enchantment);
             if (lore != null && !lore.isEmpty()) {

common/src/main/java/com/viaversion/viabackwards/api/rewriters/LegacyEntityRewriter.java

@@ -17,22 +17,22 @@
  */
 package com.viaversion.viabackwards.api.rewriters;
 
-import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.entities.storage.EntityData;
+import com.viaversion.viabackwards.api.entities.storage.EntityReplacement;
 import com.viaversion.viabackwards.api.entities.storage.EntityObjectData;
 import com.viaversion.viabackwards.api.entities.storage.WrappedMetadata;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
 import com.viaversion.viaversion.api.minecraft.entities.ObjectType;
-import com.viaversion.viaversion.api.minecraft.metadata.MetaType;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.minecraft.metadata.types.MetaType1_9;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityDataType;
+import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_9;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -40,13 +40,13 @@ import java.util.function.Function;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public abstract class LegacyEntityRewriter<C extends ClientboundPacketType, T extends BackwardsProtocol<C, ?, ?, ?>> extends EntityRewriterBase<C, T> {
-    private final Map<ObjectType, EntityData> objectTypes = new HashMap<>();
+    private final Map<ObjectType, EntityReplacement> objectTypes = new HashMap<>();
 
     protected LegacyEntityRewriter(T protocol) {
-        this(protocol, MetaType1_9.String, MetaType1_9.Boolean);
+        this(protocol, EntityDataTypes1_9.STRING, EntityDataTypes1_9.BOOLEAN);
     }
 
-    protected LegacyEntityRewriter(T protocol, MetaType displayType, MetaType displayVisibilityType) {
+    protected LegacyEntityRewriter(T protocol, EntityDataType displayType, EntityDataType displayVisibilityType) {
         super(protocol, displayType, 2, displayVisibilityType, 3);
     }
 
@@ -56,7 +56,7 @@ public abstract class LegacyEntityRewriter<C extends ClientboundPacketType, T ex
         return entData;
     }
 
-    protected @Nullable EntityData getObjectData(ObjectType type) {
+    protected @Nullable EntityReplacement getObjectData(ObjectType type) {
         return objectTypes.get(type);
     }
 
@@ -64,10 +64,10 @@ public abstract class LegacyEntityRewriter<C extends ClientboundPacketType, T ex
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT);
+                map(Types.INT);
                 handler(wrapper -> {
                     ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
-                    clientWorld.setEnvironment(wrapper.get(Type.INT, 0));
+                    clientWorld.setEnvironment(wrapper.get(Types.INT, 0));
                 });
             }
         });
@@ -77,106 +77,106 @@ public abstract class LegacyEntityRewriter<C extends ClientboundPacketType, T ex
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT); // 0 - Entity ID
-                map(Type.UNSIGNED_BYTE); // 1 - Gamemode
-                map(Type.INT); // 2 - Dimension
+                map(Types.INT); // 0 - Entity ID
+                map(Types.UNSIGNED_BYTE); // 1 - Gamemode
+                map(Types.INT); // 2 - Dimension
                 handler(wrapper -> {
                     ClientWorld clientChunks = wrapper.user().get(ClientWorld.class);
-                    clientChunks.setEnvironment(wrapper.get(Type.INT, 1));
-                    addTrackedEntity(wrapper, wrapper.get(Type.INT, 0), playerType);
+                    clientChunks.setEnvironment(wrapper.get(Types.INT, 1));
+                    addTrackedEntity(wrapper, wrapper.get(Types.INT, 0), playerType);
                 });
             }
         });
     }
 
     @Override
-    public void registerMetadataRewriter(C packetType, Type<List<Metadata>> oldMetaType, Type<List<Metadata>> newMetaType) {
+    public void registerSetEntityData(C packetType, Type<List<EntityData>> oldMetaType, Type<List<EntityData>> newMetaType) {
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
+                map(Types.VAR_INT); // 0 - Entity ID
                 if (oldMetaType != null) {
                     map(oldMetaType, newMetaType);
                 } else {
                     map(newMetaType);
                 }
                 handler(wrapper -> {
-                    List<Metadata> metadata = wrapper.get(newMetaType, 0);
-                    handleMetadata(wrapper.get(Type.VAR_INT, 0), metadata, wrapper.user());
+                    List<EntityData> metadata = wrapper.get(newMetaType, 0);
+                    handleEntityData(wrapper.get(Types.VAR_INT, 0), metadata, wrapper.user());
                 });
             }
         });
     }
 
     @Override
-    public void registerMetadataRewriter(C packetType, Type<List<Metadata>> metaType) {
-        registerMetadataRewriter(packetType, null, metaType);
+    public void registerSetEntityData(C packetType, Type<List<EntityData>> metaType) {
+        registerSetEntityData(packetType, null, metaType);
     }
 
-    protected PacketHandler getMobSpawnRewriter(Type<List<Metadata>> metaType, IdSetter idSetter) {
+    protected PacketHandler getMobSpawnRewriter(Type<List<EntityData>> metaType, IdSetter idSetter) {
         return wrapper -> {
-            int entityId = wrapper.get(Type.VAR_INT, 0);
+            int entityId = wrapper.get(Types.VAR_INT, 0);
             EntityType type = tracker(wrapper.user()).entityType(entityId);
 
-            List<Metadata> metadata = wrapper.get(metaType, 0);
-            handleMetadata(entityId, metadata, wrapper.user());
+            List<EntityData> metadata = wrapper.get(metaType, 0);
+            handleEntityData(entityId, metadata, wrapper.user());
 
-            EntityData entityData = entityDataForType(type);
-            if (entityData != null) {
-                idSetter.setId(wrapper, entityData.replacementId());
-                if (entityData.hasBaseMeta()) {
-                    entityData.defaultMeta().createMeta(new WrappedMetadata(metadata));
+            EntityReplacement entityReplacement = entityDataForType(type);
+            if (entityReplacement != null) {
+                idSetter.setId(wrapper, entityReplacement.replacementId());
+                if (entityReplacement.hasBaseMeta()) {
+                    entityReplacement.defaultMeta().createMeta(new WrappedMetadata(metadata));
                 }
             }
         };
     }
 
-    public PacketHandler getMobSpawnRewriter(Type<List<Metadata>> metaType) {
-        return getMobSpawnRewriter(metaType, (wrapper, id) -> wrapper.set(Type.UNSIGNED_BYTE, 0, (short) id));
+    public PacketHandler getMobSpawnRewriter(Type<List<EntityData>> metaType) {
+        return getMobSpawnRewriter(metaType, (wrapper, id) -> wrapper.set(Types.UNSIGNED_BYTE, 0, (short) id));
     }
 
-    public PacketHandler getMobSpawnRewriter1_11(Type<List<Metadata>> metaType) {
-        return getMobSpawnRewriter(metaType, (wrapper, id) -> wrapper.set(Type.VAR_INT, 1, id));
+    public PacketHandler getMobSpawnRewriter1_11(Type<List<EntityData>> metaType) {
+        return getMobSpawnRewriter(metaType, (wrapper, id) -> wrapper.set(Types.VAR_INT, 1, id));
     }
 
     protected PacketHandler getObjectTrackerHandler() {
-        return wrapper -> addTrackedEntity(wrapper, wrapper.get(Type.VAR_INT, 0), objectTypeFromId(wrapper.get(Type.BYTE, 0)));
+        return wrapper -> addTrackedEntity(wrapper, wrapper.get(Types.VAR_INT, 0), objectTypeFromId(wrapper.get(Types.BYTE, 0)));
     }
 
-    protected PacketHandler getTrackerAndMetaHandler(Type<List<Metadata>> metaType, EntityType entityType) {
+    protected PacketHandler getTrackerAndMetaHandler(Type<List<EntityData>> metaType, EntityType entityType) {
         return wrapper -> {
-            addTrackedEntity(wrapper, wrapper.get(Type.VAR_INT, 0), entityType);
-            List<Metadata> metadata = wrapper.get(metaType, 0);
-            handleMetadata(wrapper.get(Type.VAR_INT, 0), metadata, wrapper.user());
+            addTrackedEntity(wrapper, wrapper.get(Types.VAR_INT, 0), entityType);
+            List<EntityData> metadata = wrapper.get(metaType, 0);
+            handleEntityData(wrapper.get(Types.VAR_INT, 0), metadata, wrapper.user());
         };
     }
 
     protected PacketHandler getObjectRewriter(Function<Byte, ObjectType> objectGetter) {
         return wrapper -> {
-            ObjectType type = objectGetter.apply(wrapper.get(Type.BYTE, 0));
+            ObjectType type = objectGetter.apply(wrapper.get(Types.BYTE, 0));
             if (type == null) {
-                ViaBackwards.getPlatform().getLogger().warning("Could not find Entity Type" + wrapper.get(Type.BYTE, 0));
+                protocol.getLogger().warning("Could not find Entity Type" + wrapper.get(Types.BYTE, 0));
                 return;
             }
 
-            EntityData data = getObjectData(type);
+            EntityReplacement data = getObjectData(type);
             if (data != null) {
-                wrapper.set(Type.BYTE, 0, (byte) data.replacementId());
+                wrapper.set(Types.BYTE, 0, (byte) data.replacementId());
                 if (data.objectData() != -1) {
-                    wrapper.set(Type.INT, 0, data.objectData());
+                    wrapper.set(Types.INT, 0, data.objectData());
                 }
             }
         };
     }
 
     @Deprecated
-    protected void addTrackedEntity(PacketWrapper wrapper, int entityId, EntityType type) throws Exception {
+    protected void addTrackedEntity(PacketWrapper wrapper, int entityId, EntityType type) {
         tracker(wrapper.user()).addEntity(entityId, type);
     }
 
     @FunctionalInterface
     protected interface IdSetter {
 
-        void setId(PacketWrapper wrapper, int id) throws Exception;
+        void setId(PacketWrapper wrapper, int id);
     }
 }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/LegacySoundRewriter.java

@@ -50,11 +50,11 @@ public abstract class LegacySoundRewriter<T extends BackwardsProtocol<?, ?, ?, ?
     public int handleSounds(int soundId) {
         int newSoundId = soundId;
         SoundData data = soundRewrites.get(soundId);
-        if (data != null) return data.getReplacementSound();
+        if (data != null) return data.replacementSound();
 
         for (Int2ObjectMap.Entry<SoundData> entry : soundRewrites.int2ObjectEntrySet()) {
             if (soundId > entry.getIntKey()) {
-                if (entry.getValue().isAdded()) {
+                if (entry.getValue().added()) {
                     newSoundId--;
                 } else {
                     newSoundId++;
@@ -66,41 +66,14 @@ public abstract class LegacySoundRewriter<T extends BackwardsProtocol<?, ?, ?, ?
 
     public boolean hasPitch(int soundId) {
         SoundData data = soundRewrites.get(soundId);
-        return data != null && data.isChangePitch();
+        return data != null && data.changePitch();
     }
 
     public float handlePitch(int soundId) {
         SoundData data = soundRewrites.get(soundId);
-        return data != null ? data.getNewPitch() : 1F;
+        return data != null ? data.newPitch() : 1F;
     }
 
-    public static final class SoundData {
-        private final int replacementSound;
-        private final boolean changePitch;
-        private final float newPitch;
-        private final boolean added;
-
-        public SoundData(int replacementSound, boolean changePitch, float newPitch, boolean added) {
-            this.replacementSound = replacementSound;
-            this.changePitch = changePitch;
-            this.newPitch = newPitch;
-            this.added = added;
-        }
-
-        public int getReplacementSound() {
-            return replacementSound;
-        }
-
-        public boolean isChangePitch() {
-            return changePitch;
-        }
-
-        public float getNewPitch() {
-            return newPitch;
-        }
-
-        public boolean isAdded() {
-            return added;
-        }
+    public record SoundData(int replacementSound, boolean changePitch, float newPitch, boolean added) {
     }
 }

common/src/main/java/com/viaversion/viabackwards/api/rewriters/MapColorRewriter.java

@@ -19,6 +19,7 @@ package com.viaversion.viabackwards.api.rewriters;
 
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.rewriter.IdRewriteFunction;
 
 public final class MapColorRewriter {
@@ -31,22 +32,22 @@ public final class MapColorRewriter {
      */
     public static PacketHandler getRewriteHandler(IdRewriteFunction rewriter) {
         return wrapper -> {
-            int iconCount = wrapper.passthrough(Type.VAR_INT);
+            int iconCount = wrapper.passthrough(Types.VAR_INT);
             for (int i = 0; i < iconCount; i++) {
-                wrapper.passthrough(Type.VAR_INT); // Type
-                wrapper.passthrough(Type.BYTE); // X
-                wrapper.passthrough(Type.BYTE); // Z
-                wrapper.passthrough(Type.BYTE); // Direction
-                wrapper.passthrough(Type.OPTIONAL_COMPONENT); // Display Name
+                wrapper.passthrough(Types.VAR_INT); // Type
+                wrapper.passthrough(Types.BYTE); // X
+                wrapper.passthrough(Types.BYTE); // Z
+                wrapper.passthrough(Types.BYTE); // Direction
+                wrapper.passthrough(Types.OPTIONAL_COMPONENT); // Display Name
             }
 
-            short columns = wrapper.passthrough(Type.UNSIGNED_BYTE);
+            short columns = wrapper.passthrough(Types.UNSIGNED_BYTE);
             if (columns < 1) return;
 
-            wrapper.passthrough(Type.UNSIGNED_BYTE); // Rows
-            wrapper.passthrough(Type.UNSIGNED_BYTE); // X
-            wrapper.passthrough(Type.UNSIGNED_BYTE); // Z
-            byte[] data = wrapper.passthrough(Type.BYTE_ARRAY_PRIMITIVE);
+            wrapper.passthrough(Types.UNSIGNED_BYTE); // Rows
+            wrapper.passthrough(Types.UNSIGNED_BYTE); // X
+            wrapper.passthrough(Types.UNSIGNED_BYTE); // Z
+            byte[] data = wrapper.passthrough(Types.BYTE_ARRAY_PRIMITIVE);
             for (int i = 0; i < data.length; i++) {
                 int color = data[i] & 0xFF;
                 int mappedColor = rewriter.rewrite(color);

common/src/main/java/com/viaversion/viabackwards/api/rewriters/SoundRewriter.java

@@ -24,7 +24,7 @@ import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 
 public class SoundRewriter<C extends ClientboundPacketType> extends com.viaversion.viaversion.rewriter.SoundRewriter<C> {
 
@@ -39,7 +39,7 @@ public class SoundRewriter<C extends ClientboundPacketType> extends com.viaversi
         protocol.registerClientbound(packetType, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.STRING); // Sound identifier
+                map(Types.STRING); // Sound identifier
                 handler(getNamedSoundHandler());
             }
         });
@@ -56,14 +56,14 @@ public class SoundRewriter<C extends ClientboundPacketType> extends com.viaversi
 
     public PacketHandler getNamedSoundHandler() {
         return wrapper -> {
-            final String soundId = wrapper.get(Type.STRING, 0);
+            final String soundId = wrapper.get(Types.STRING, 0);
             final String mappedId = protocol.getMappingData().getMappedNamedSound(soundId);
             if (mappedId == null) {
                 return;
             }
 
             if (!mappedId.isEmpty()) {
-                wrapper.set(Type.STRING, 0, mappedId);
+                wrapper.set(Types.STRING, 0, mappedId);
             } else {
                 wrapper.cancel();
             }
@@ -72,23 +72,23 @@ public class SoundRewriter<C extends ClientboundPacketType> extends com.viaversi
 
     public PacketHandler getStopSoundHandler() {
         return wrapper -> {
-            final byte flags = wrapper.passthrough(Type.BYTE);
+            final byte flags = wrapper.passthrough(Types.BYTE);
             if ((flags & 0x02) == 0) return; // No sound specified
 
             if ((flags & 0x01) != 0) {
-                wrapper.passthrough(Type.VAR_INT); // Source
+                wrapper.passthrough(Types.VAR_INT); // Source
             }
 
-            final String soundId = wrapper.read(Type.STRING);
+            final String soundId = wrapper.read(Types.STRING);
             final String mappedId = protocol.getMappingData().getMappedNamedSound(soundId);
             if (mappedId == null) {
                 // No mapping found
-                wrapper.write(Type.STRING, soundId);
+                wrapper.write(Types.STRING, soundId);
                 return;
             }
 
             if (!mappedId.isEmpty()) {
-                wrapper.write(Type.STRING, mappedId);
+                wrapper.write(Types.STRING, mappedId);
             } else {
                 // Cancel if set to empty
                 wrapper.cancel();
@@ -97,15 +97,15 @@ public class SoundRewriter<C extends ClientboundPacketType> extends com.viaversi
     }
 
     @Override
-    public void register1_19_3Sound(final C packetType) {
-        protocol.registerClientbound(packetType, get1_19_3SoundHandler());
+    public void registerSound1_19_3(final C packetType) {
+        protocol.registerClientbound(packetType, getSoundHandler1_19_3());
     }
 
-    public PacketHandler get1_19_3SoundHandler() {
+    public PacketHandler getSoundHandler1_19_3() {
         return wrapper -> {
-            Holder<SoundEvent> soundEventHolder = wrapper.read(Type.SOUND_EVENT);
+            Holder<SoundEvent> soundEventHolder = wrapper.read(Types.SOUND_EVENT);
             if (soundEventHolder.isDirect()) {
-                wrapper.write(Type.SOUND_EVENT, rewriteSoundEvent(wrapper, soundEventHolder));
+                wrapper.write(Types.SOUND_EVENT, rewriteSoundEvent(wrapper, soundEventHolder));
                 return;
             }
 
@@ -119,7 +119,7 @@ public class SoundRewriter<C extends ClientboundPacketType> extends com.viaversi
                 soundEventHolder = Holder.of(mappedId);
             }
 
-            wrapper.write(Type.SOUND_EVENT, soundEventHolder);
+            wrapper.write(Types.SOUND_EVENT, soundEventHolder);
         };
     }
 

common/src/main/java/com/viaversion/viabackwards/api/rewriters/StructuredEnchantmentRewriter.java

@@ -17,7 +17,7 @@
  */
 package com.viaversion.viabackwards.api.rewriters;
 
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viaversion.api.data.Mappings;
 import com.viaversion.viaversion.api.minecraft.data.StructuredData;
 import com.viaversion.viaversion.api.minecraft.data.StructuredDataContainer;
@@ -27,11 +27,11 @@ import com.viaversion.viaversion.api.minecraft.item.data.Enchantments;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2IntMap;
 import com.viaversion.viaversion.libs.fastutil.ints.IntIntPair;
 import com.viaversion.viaversion.libs.fastutil.objects.ObjectIterator;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ByteTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.nbt.tag.ByteTag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.NumberTag;
+import com.viaversion.nbt.tag.Tag;
 import com.viaversion.viaversion.util.ComponentUtil;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -83,7 +83,7 @@ public class StructuredEnchantmentRewriter {
         final List<IntIntPair> updatedIds = new ArrayList<>();
         while (iterator.hasNext()) {
             final Int2IntMap.Entry entry = iterator.next();
-            final BackwardsMappings mappingData = itemRewriter.protocol().getMappingData();
+            final BackwardsMappingData mappingData = itemRewriter.protocol().getMappingData();
             final Mappings mappings = mappingData.getEnchantmentMappings();
             final int mappedId = mappings.getNewId(entry.getIntKey());
             if (mappedId != -1) {

common/src/main/java/com/viaversion/viabackwards/api/rewriters/TranslatableRewriter.java

@@ -24,8 +24,8 @@ import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.libs.gson.JsonObject;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.StringTag;
 import com.viaversion.viaversion.rewriter.ComponentRewriter;
 import java.util.HashMap;
 import java.util.Map;
@@ -48,14 +48,14 @@ public class TranslatableRewriter<C extends ClientboundPacketType> extends Compo
     }
 
     public TranslatableRewriter(final BackwardsProtocol<C, ?, ?, ?> protocol, final ReadType type) {
-        this(protocol, type, protocol.getClass().getSimpleName().split("To")[1].replace("_", "."));
+        this(protocol, type, protocol.getClass().getSimpleName().replace("Protocol", "").split("To")[0].replace("_", "."));
     }
 
     public TranslatableRewriter(final BackwardsProtocol<C, ?, ?, ?> protocol, final ReadType type, final String sectionIdentifier) {
         super(protocol, type);
         final Map<String, String> translatableMappings = TRANSLATABLES.get(sectionIdentifier);
         if (translatableMappings == null) {
-            ViaBackwards.getPlatform().getLogger().warning("Missing " + sectionIdentifier + " translatables!");
+            protocol.getLogger().warning("Missing " + sectionIdentifier + " translatables!");
             this.translatables = new HashMap<>();
         } else {
             this.translatables = translatableMappings;

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_11_1to1_12/Protocol1_11_1To1_12.java

@@ -1,100 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12;
-
-import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data.ShoulderTracker;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets.BlockItemPackets1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets.ChatPackets1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets.EntityPackets1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets.SoundPackets1_12;
-import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.api.minecraft.ClientWorld;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_12;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ServerboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8;
-
-public class Protocol1_11_1To1_12 extends BackwardsProtocol<ClientboundPackets1_12, ClientboundPackets1_9_3, ServerboundPackets1_12, ServerboundPackets1_9_3> {
-
-    private static final BackwardsMappings MAPPINGS = new BackwardsMappings("1.12", "1.11");
-    private final EntityPackets1_12 entityPackets = new EntityPackets1_12(this);
-    private final BlockItemPackets1_12 blockItemPackets = new BlockItemPackets1_12(this);
-
-    public Protocol1_11_1To1_12() {
-        super(ClientboundPackets1_12.class, ClientboundPackets1_9_3.class, ServerboundPackets1_12.class, ServerboundPackets1_9_3.class);
-    }
-
-    @Override
-    protected void registerPackets() {
-        blockItemPackets.register();
-        entityPackets.register();
-        new SoundPackets1_12(this).register();
-        new ChatPackets1_12(this).register();
-
-        registerClientbound(ClientboundPackets1_12.TITLE, wrapper -> {
-            int action = wrapper.passthrough(Type.VAR_INT);
-            if (action >= 0 && action <= 2) {
-                JsonElement component = wrapper.read(Type.COMPONENT);
-                wrapper.write(Type.COMPONENT, Protocol1_9To1_8.STRING_TO_JSON.transform(wrapper, component.toString()));
-            }
-        });
-
-        cancelClientbound(ClientboundPackets1_12.ADVANCEMENTS);
-        cancelClientbound(ClientboundPackets1_12.UNLOCK_RECIPES);
-        cancelClientbound(ClientboundPackets1_12.SELECT_ADVANCEMENTS_TAB);
-    }
-
-    @Override
-    public void init(UserConnection user) {
-        if (!user.has(ClientWorld.class)) {
-            user.put(new ClientWorld());
-        }
-
-        user.addEntityTracker(this.getClass(), new EntityTrackerBase(user, EntityTypes1_12.EntityType.PLAYER));
-
-        user.put(new ShoulderTracker(user));
-    }
-
-    @Override
-    public BackwardsMappings getMappingData() {
-        return MAPPINGS;
-    }
-
-    @Override
-    public EntityPackets1_12 getEntityRewriter() {
-        return entityPackets;
-    }
-
-    @Override
-    public BlockItemPackets1_12 getItemRewriter() {
-        return blockItemPackets;
-    }
-
-    @Override
-    public boolean hasMappingDataToLoad() {
-        return true;
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_11to1_11_1/packets/EntityPackets1_11_1.java

@@ -1,127 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.packets;
-
-import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.Protocol1_11To1_11_1;
-import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_9;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-
-public class EntityPackets1_11_1 extends LegacyEntityRewriter<ClientboundPackets1_9_3, Protocol1_11To1_11_1> {
-
-    public EntityPackets1_11_1(Protocol1_11To1_11_1 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_ENTITY, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.BYTE); // 2 - Type
-                map(Type.DOUBLE); // 3 - x
-                map(Type.DOUBLE); // 4 - y
-                map(Type.DOUBLE); // 5 - z
-                map(Type.BYTE); // 6 - Pitch
-                map(Type.BYTE); // 7 - Yaw
-                map(Type.INT); // 8 - data
-
-                // Track Entity
-                handler(getObjectTrackerHandler());
-                handler(getObjectRewriter(id -> EntityTypes1_11.ObjectType.findById(id).orElse(null)));
-            }
-        });
-
-        registerTracker(ClientboundPackets1_9_3.SPAWN_EXPERIENCE_ORB, EntityTypes1_11.EntityType.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_9_3.SPAWN_GLOBAL_ENTITY, EntityTypes1_11.EntityType.WEATHER);
-
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_MOB, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_9.METADATA_LIST); // 12 - Metadata
-
-                // Track entity
-                handler(getTrackerHandler());
-
-                // Rewrite entity type / metadata
-                handler(getMobSpawnRewriter1_11(Types1_9.METADATA_LIST));
-            }
-        });
-
-        registerTracker(ClientboundPackets1_9_3.SPAWN_PAINTING, EntityTypes1_11.EntityType.PAINTING);
-        registerJoinGame(ClientboundPackets1_9_3.JOIN_GAME, EntityTypes1_11.EntityType.PLAYER);
-        registerRespawn(ClientboundPackets1_9_3.RESPAWN);
-
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_PLAYER, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                map(Types1_9.METADATA_LIST); // 7 - Metadata list
-
-                handler(getTrackerAndMetaHandler(Types1_9.METADATA_LIST, EntityTypes1_11.EntityType.PLAYER));
-            }
-        });
-
-        registerRemoveEntities(ClientboundPackets1_9_3.DESTROY_ENTITIES);
-        registerMetadataRewriter(ClientboundPackets1_9_3.ENTITY_METADATA, Types1_9.METADATA_LIST);
-    }
-
-    @Override
-    protected void registerRewrites() {
-        // Handle non-existing firework metadata (index 7 entity id for boosting)
-        filter().type(EntityTypes1_11.EntityType.FIREWORK).cancel(7);
-
-        // Handle non-existing pig metadata (index 14 - boost time)
-        filter().type(EntityTypes1_11.EntityType.PIG).cancel(14);
-    }
-
-    @Override
-    public EntityType typeFromId(int typeId) {
-        return EntityTypes1_11.getTypeFromId(typeId, false);
-    }
-
-    @Override
-    public EntityType objectTypeFromId(int typeId) {
-        return EntityTypes1_11.getTypeFromId(typeId, true);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_12_2to1_13/packets/PlayerPacket1_13.java

@@ -1,575 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.packets;
-
-import com.google.common.base.Joiner;
-import com.viaversion.viabackwards.ViaBackwards;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.Protocol1_12_2To1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.data.ParticleMapping;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.storage.TabCompleteStorage;
-import com.viaversion.viabackwards.utils.ChatUtil;
-import com.viaversion.viaversion.api.Via;
-import com.viaversion.viaversion.api.minecraft.Position;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.packet.State;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.rewriter.RewriterBase;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ClientboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ServerboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.packets.InventoryPackets;
-import com.viaversion.viaversion.rewriter.CommandRewriter;
-import com.viaversion.viaversion.util.Key;
-import java.nio.charset.StandardCharsets;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-import java.util.UUID;
-import java.util.concurrent.ThreadLocalRandom;
-
-public class PlayerPacket1_13 extends RewriterBase<Protocol1_12_2To1_13> {
-
-    private final CommandRewriter<ClientboundPackets1_13> commandRewriter = new CommandRewriter<>(protocol);
-
-    public PlayerPacket1_13(Protocol1_12_2To1_13 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        // Login Plugin Request
-        protocol.registerClientbound(State.LOGIN, 0x04, -1, new PacketHandlers() {
-            @Override
-            public void register() {
-                handler(packetWrapper -> {
-                    packetWrapper.cancel();
-                    // Plugin response
-                    packetWrapper.create(0x02, wrapper -> {
-                        wrapper.write(Type.VAR_INT, packetWrapper.read(Type.VAR_INT)); // Packet id
-                        wrapper.write(Type.BOOLEAN, false); // Success
-                    }).sendToServer(Protocol1_12_2To1_13.class);
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.PLUGIN_MESSAGE, wrapper -> {
-            String channel = wrapper.read(Type.STRING);
-            if (channel.equals("minecraft:trader_list")) {
-                wrapper.write(Type.STRING, "MC|TrList");
-                wrapper.passthrough(Type.INT); //Passthrough Window ID
-
-                int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
-                for (int i = 0; i < size; i++) {
-                    //Input Item
-                    Item input = wrapper.read(Type.ITEM1_13);
-                    wrapper.write(Type.ITEM1_8, protocol.getItemRewriter().handleItemToClient(wrapper.user(), input));
-                    //Output Item
-                    Item output = wrapper.read(Type.ITEM1_13);
-                    wrapper.write(Type.ITEM1_8, protocol.getItemRewriter().handleItemToClient(wrapper.user(), output));
-
-                    boolean secondItem = wrapper.passthrough(Type.BOOLEAN); //Has second item
-                    if (secondItem) {
-                        //Second Item
-                        Item second = wrapper.read(Type.ITEM1_13);
-                        wrapper.write(Type.ITEM1_8, protocol.getItemRewriter().handleItemToClient(wrapper.user(), second));
-                    }
-
-                    wrapper.passthrough(Type.BOOLEAN); //Trade disabled
-                    wrapper.passthrough(Type.INT); //Number of tools uses
-                    wrapper.passthrough(Type.INT); //Maximum number of trade uses
-                }
-            } else {
-                String oldChannel = InventoryPackets.getOldPluginChannelId(channel);
-                if (oldChannel == null) {
-                    if (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug()) {
-                        ViaBackwards.getPlatform().getLogger().warning("Ignoring clientbound plugin message with channel: " + channel);
-                    }
-                    wrapper.cancel();
-                    return;
-                }
-                wrapper.write(Type.STRING, oldChannel);
-
-                if (oldChannel.equals("REGISTER") || oldChannel.equals("UNREGISTER")) {
-                    String[] channels = new String(wrapper.read(Type.REMAINING_BYTES), StandardCharsets.UTF_8).split("\0");
-                    List<String> rewrittenChannels = new ArrayList<>();
-                    for (String s : channels) {
-                        String rewritten = InventoryPackets.getOldPluginChannelId(s);
-                        if (rewritten != null) {
-                            rewrittenChannels.add(rewritten);
-                        } else if (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug()) {
-                            ViaBackwards.getPlatform().getLogger().warning("Ignoring plugin channel in clientbound " + oldChannel + ": " + s);
-                        }
-                    }
-                    wrapper.write(Type.REMAINING_BYTES, Joiner.on('\0').join(rewrittenChannels).getBytes(StandardCharsets.UTF_8));
-                }
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_PARTICLE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.INT);      // 0 - Particle ID
-                map(Type.BOOLEAN);  // 1 - Long Distance
-                map(Type.FLOAT);    // 2 - X
-                map(Type.FLOAT);    // 3 - Y
-                map(Type.FLOAT);    // 4 - Z
-                map(Type.FLOAT);    // 5 - Offset X
-                map(Type.FLOAT);    // 6 - Offset Y
-                map(Type.FLOAT);    // 7 - Offset Z
-                map(Type.FLOAT);    // 8 - Particle Data
-                map(Type.INT);      // 9 - Particle Count
-                handler(wrapper -> {
-                    ParticleMapping.ParticleData old = ParticleMapping.getMapping(wrapper.get(Type.INT, 0));
-                    wrapper.set(Type.INT, 0, old.getHistoryId());
-
-                    int[] data = old.rewriteData(protocol, wrapper);
-                    if (data != null) {
-                        if (old.getHandler().isBlockHandler() && data[0] == 0) {
-                            // Cancel air block particles
-                            wrapper.cancel();
-                            return;
-                        }
-
-                        for (int i : data) {
-                            wrapper.write(Type.VAR_INT, i);
-                        }
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.PLAYER_INFO, new PacketHandlers() {
-            @Override
-            public void register() {
-                handler(packetWrapper -> {
-                    TabCompleteStorage storage = packetWrapper.user().get(TabCompleteStorage.class);
-                    int action = packetWrapper.passthrough(Type.VAR_INT);
-                    int nPlayers = packetWrapper.passthrough(Type.VAR_INT);
-                    for (int i = 0; i < nPlayers; i++) {
-                        UUID uuid = packetWrapper.passthrough(Type.UUID);
-                        if (action == 0) { // Add
-                            String name = packetWrapper.passthrough(Type.STRING);
-                            storage.usernames().put(uuid, name);
-                            int nProperties = packetWrapper.passthrough(Type.VAR_INT);
-                            for (int j = 0; j < nProperties; j++) {
-                                packetWrapper.passthrough(Type.STRING);
-                                packetWrapper.passthrough(Type.STRING);
-                                packetWrapper.passthrough(Type.OPTIONAL_STRING);
-                            }
-                            packetWrapper.passthrough(Type.VAR_INT);
-                            packetWrapper.passthrough(Type.VAR_INT);
-                            packetWrapper.passthrough(Type.OPTIONAL_COMPONENT);
-                        } else if (action == 1) { // Update Game Mode
-                            packetWrapper.passthrough(Type.VAR_INT);
-                        } else if (action == 2) { // Update Ping
-                            packetWrapper.passthrough(Type.VAR_INT);
-                        } else if (action == 3) { // Update Display Name
-                            packetWrapper.passthrough(Type.OPTIONAL_COMPONENT);
-                        } else if (action == 4) { // Remove Player
-                            storage.usernames().remove(uuid);
-                        }
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.SCOREBOARD_OBJECTIVE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.STRING);
-                map(Type.BYTE);
-                handler(wrapper -> {
-                    byte mode = wrapper.get(Type.BYTE, 0);
-                    if (mode == 0 || mode == 2) {
-                        JsonElement value = wrapper.read(Type.COMPONENT);
-                        String legacyValue = protocol.jsonToLegacy(wrapper.user(), value);
-                        wrapper.write(Type.STRING, ChatUtil.fromLegacy(legacyValue, 'f', 32));
-                        int type = wrapper.read(Type.VAR_INT);
-                        wrapper.write(Type.STRING, type == 1 ? "hearts" : "integer");
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.TEAMS, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.STRING); // Name
-                map(Type.BYTE); // Action
-                handler(wrapper -> {
-                    byte action = wrapper.get(Type.BYTE, 0);
-                    if (action == 0 || action == 2) {
-                        JsonElement displayName = wrapper.read(Type.COMPONENT);
-                        String legacyTextDisplayName = protocol.jsonToLegacy(wrapper.user(), displayName);
-                        wrapper.write(Type.STRING, ChatUtil.fromLegacy(legacyTextDisplayName, 'f', 32));
-
-                        byte flags = wrapper.read(Type.BYTE);
-                        String nameTagVisibility = wrapper.read(Type.STRING);
-                        String collisionRule = wrapper.read(Type.STRING);
-
-                        int colour = wrapper.read(Type.VAR_INT);
-                        if (colour == 21) {
-                            colour = -1;
-                        }
-
-                        JsonElement prefixComponent = wrapper.read(Type.COMPONENT);
-                        JsonElement suffixComponent = wrapper.read(Type.COMPONENT);
-
-                        String prefix = protocol.jsonToLegacy(wrapper.user(), prefixComponent);
-                        if (ViaBackwards.getConfig().addTeamColorTo1_13Prefix()) {
-                            prefix += "§" + (colour > -1 && colour <= 15 ? Integer.toHexString(colour) : "r");
-                        }
-                        String suffix = protocol.jsonToLegacy(wrapper.user(), suffixComponent);
-
-                        wrapper.write(Type.STRING, ChatUtil.fromLegacyPrefix(prefix, 'f', 16));
-                        wrapper.write(Type.STRING, ChatUtil.fromLegacy(suffix, '\0', 16));
-
-                        wrapper.write(Type.BYTE, flags);
-                        wrapper.write(Type.STRING, nameTagVisibility);
-                        wrapper.write(Type.STRING, collisionRule);
-
-                        wrapper.write(Type.BYTE, (byte) colour);
-                    }
-
-                    if (action == 0 || action == 3 || action == 4) {
-                        wrapper.passthrough(Type.STRING_ARRAY); //Entities
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.DECLARE_COMMANDS, null, wrapper -> {
-            wrapper.cancel();
-
-            TabCompleteStorage storage = wrapper.user().get(TabCompleteStorage.class);
-
-            if (!storage.commands().isEmpty()) {
-                storage.commands().clear();
-            }
-
-            int size = wrapper.read(Type.VAR_INT);
-            boolean initialNodes = true;
-            for (int i = 0; i < size; i++) {
-                byte flags = wrapper.read(Type.BYTE);
-                wrapper.read(Type.VAR_INT_ARRAY_PRIMITIVE); // Children indices
-                if ((flags & 0x08) != 0) {
-                    wrapper.read(Type.VAR_INT); // Redirect node index
-                }
-
-                byte nodeType = (byte) (flags & 0x03);
-                if (initialNodes && nodeType == 2) {
-                    initialNodes = false;
-                }
-
-                if (nodeType == 1 || nodeType == 2) { // Literal/argument node
-                    String name = wrapper.read(Type.STRING);
-                    if (nodeType == 1 && initialNodes) {
-                        storage.commands().add('/' + name);
-                    }
-                }
-
-                if (nodeType == 2) { // Argument node
-                    commandRewriter.handleArgument(wrapper, wrapper.read(Type.STRING));
-                }
-
-                if ((flags & 0x10) != 0) {
-                    wrapper.read(Type.STRING); // Suggestion type
-                }
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.TAB_COMPLETE, wrapper -> {
-            TabCompleteStorage storage = wrapper.user().get(TabCompleteStorage.class);
-            if (storage.lastRequest() == null) {
-                wrapper.cancel();
-                return;
-            }
-            if (storage.lastId() != wrapper.read(Type.VAR_INT)) wrapper.cancel();
-            int start = wrapper.read(Type.VAR_INT);
-            int length = wrapper.read(Type.VAR_INT);
-
-            int lastRequestPartIndex = storage.lastRequest().lastIndexOf(' ') + 1;
-            if (lastRequestPartIndex != start) wrapper.cancel(); // Client only replaces after space
-
-            if (length != storage.lastRequest().length() - lastRequestPartIndex) {
-                wrapper.cancel(); // We can't set the length in previous versions
-            }
-
-            int count = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < count; i++) {
-                String match = wrapper.read(Type.STRING);
-                wrapper.write(Type.STRING, (start == 0 && !storage.isLastAssumeCommand() ? "/" : "") + match);
-                wrapper.read(Type.OPTIONAL_COMPONENT); // Remove tooltip
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_12_1.TAB_COMPLETE, wrapper -> {
-            TabCompleteStorage storage = wrapper.user().get(TabCompleteStorage.class);
-            List<String> suggestions = new ArrayList<>();
-
-            String command = wrapper.read(Type.STRING);
-            boolean assumeCommand = wrapper.read(Type.BOOLEAN);
-            wrapper.read(Type.OPTIONAL_POSITION1_8);
-
-            if (!assumeCommand && !command.startsWith("/")) {
-                // Complete usernames for non-commands
-                String buffer = command.substring(command.lastIndexOf(' ') + 1);
-                for (String value : storage.usernames().values()) {
-                    if (startsWithIgnoreCase(value, buffer)) {
-                        suggestions.add(value);
-                    }
-                }
-            } else if (!storage.commands().isEmpty() && !command.contains(" ")) {
-                // Complete commands names with values from 'Declare Commands' packet
-                for (String value : storage.commands()) {
-                    if (startsWithIgnoreCase(value, command)) {
-                        suggestions.add(value);
-                    }
-                }
-            }
-
-            if (!suggestions.isEmpty()) {
-                wrapper.cancel();
-                PacketWrapper response = wrapper.create(ClientboundPackets1_12_1.TAB_COMPLETE);
-                response.write(Type.VAR_INT, suggestions.size());
-                for (String value : suggestions) {
-                    response.write(Type.STRING, value);
-                }
-                response.scheduleSend(Protocol1_12_2To1_13.class);
-                storage.setLastRequest(null);
-                return;
-            }
-
-            if (!assumeCommand && command.startsWith("/")) {
-                command = command.substring(1);
-            }
-
-            int id = ThreadLocalRandom.current().nextInt();
-            wrapper.write(Type.VAR_INT, id);
-            wrapper.write(Type.STRING, command);
-
-            storage.setLastId(id);
-            storage.setLastAssumeCommand(assumeCommand);
-            storage.setLastRequest(command);
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_12_1.PLUGIN_MESSAGE, wrapper -> {
-            String channel = wrapper.read(Type.STRING);
-            switch (channel) {
-                case "MC|BSign":
-                case "MC|BEdit":
-                    wrapper.setPacketType(ServerboundPackets1_13.EDIT_BOOK);
-                    Item book = wrapper.read(Type.ITEM1_8);
-                    wrapper.write(Type.ITEM1_13, protocol.getItemRewriter().handleItemToServer(wrapper.user(), book));
-                    boolean signing = channel.equals("MC|BSign");
-                    wrapper.write(Type.BOOLEAN, signing);
-                    break;
-                case "MC|ItemName":
-                    wrapper.setPacketType(ServerboundPackets1_13.RENAME_ITEM);
-                    break;
-                case "MC|AdvCmd":
-                    byte type = wrapper.read(Type.BYTE);
-                    if (type == 0) {
-                        //Information from https://wiki.vg/index.php?title=Plugin_channels&oldid=14089
-                        //The Notchain client only uses this for command block minecarts and uses MC|AutoCmd for blocks, but the Notchian server still accepts it for either.
-                        //Maybe older versions used this and we need to implement this? The issue is that we would have to save the command block types
-                        wrapper.setPacketType(ServerboundPackets1_13.UPDATE_COMMAND_BLOCK);
-                        wrapper.cancel();
-                        ViaBackwards.getPlatform().getLogger().warning("Client send MC|AdvCmd custom payload to update command block, weird!");
-                    } else if (type == 1) {
-                        wrapper.setPacketType(ServerboundPackets1_13.UPDATE_COMMAND_BLOCK_MINECART);
-                        wrapper.write(Type.VAR_INT, wrapper.read(Type.INT)); //Entity Id
-                        wrapper.passthrough(Type.STRING); //Command
-                        wrapper.passthrough(Type.BOOLEAN); //Track Output
-
-                    } else {
-                        wrapper.cancel();
-                    }
-                    break;
-                case "MC|AutoCmd": {
-                    wrapper.setPacketType(ServerboundPackets1_13.UPDATE_COMMAND_BLOCK);
-
-                    int x = wrapper.read(Type.INT);
-                    int y = wrapper.read(Type.INT);
-                    int z = wrapper.read(Type.INT);
-
-                    wrapper.write(Type.POSITION1_8, new Position(x, (short) y, z));
-
-                    wrapper.passthrough(Type.STRING);  //Command
-
-                    byte flags = 0;
-                    if (wrapper.read(Type.BOOLEAN)) flags |= 0x01; //Track Output
-
-                    String mode = wrapper.read(Type.STRING);
-
-                    int modeId = mode.equals("SEQUENCE") ? 0 : mode.equals("AUTO") ? 1 : 2;
-                    wrapper.write(Type.VAR_INT, modeId);
-
-                    if (wrapper.read(Type.BOOLEAN)) flags |= 0x02; //Is conditional
-                    if (wrapper.read(Type.BOOLEAN)) flags |= 0x04; //Automatic
-
-                    wrapper.write(Type.BYTE, flags);
-                    break;
-                }
-                case "MC|Struct": {
-                    wrapper.setPacketType(ServerboundPackets1_13.UPDATE_STRUCTURE_BLOCK);
-                    int x = wrapper.read(Type.INT);
-                    int y = wrapper.read(Type.INT);
-                    int z = wrapper.read(Type.INT);
-                    wrapper.write(Type.POSITION1_8, new Position(x, (short) y, z));
-                    wrapper.write(Type.VAR_INT, wrapper.read(Type.BYTE) - 1);
-                    String mode = wrapper.read(Type.STRING);
-                    int modeId = mode.equals("SAVE") ? 0 : mode.equals("LOAD") ? 1 : mode.equals("CORNER") ? 2 : 3;
-                    wrapper.write(Type.VAR_INT, modeId);
-                    wrapper.passthrough(Type.STRING); //Name
-
-                    wrapper.write(Type.BYTE, wrapper.read(Type.INT).byteValue()); //Offset X
-
-                    wrapper.write(Type.BYTE, wrapper.read(Type.INT).byteValue()); //Offset Y
-
-                    wrapper.write(Type.BYTE, wrapper.read(Type.INT).byteValue()); //Offset Z
-
-                    wrapper.write(Type.BYTE, wrapper.read(Type.INT).byteValue()); //Size X
-
-                    wrapper.write(Type.BYTE, wrapper.read(Type.INT).byteValue()); //Size Y
-
-                    wrapper.write(Type.BYTE, wrapper.read(Type.INT).byteValue()); //Size Z
-
-                    String mirror = wrapper.read(Type.STRING);
-                    int mirrorId = mode.equals("NONE") ? 0 : mode.equals("LEFT_RIGHT") ? 1 : 2;
-                    String rotation = wrapper.read(Type.STRING);
-                    int rotationId = mode.equals("NONE") ? 0 : mode.equals("CLOCKWISE_90") ? 1 : mode.equals("CLOCKWISE_180") ? 2 : 3;
-                    wrapper.passthrough(Type.STRING); //Metadata
-
-                    byte flags = 0;
-                    if (wrapper.read(Type.BOOLEAN)) flags |= 0x01; //Ignore entities
-                    if (wrapper.read(Type.BOOLEAN)) flags |= 0x02; //Show air
-                    if (wrapper.read(Type.BOOLEAN)) flags |= 0x04; //Show bounding box
-                    wrapper.passthrough(Type.FLOAT); //Integrity
-
-                    wrapper.passthrough(Type.VAR_LONG); //Seed
-
-                    wrapper.write(Type.BYTE, flags);
-                    break;
-                }
-                case "MC|Beacon":
-                    wrapper.setPacketType(ServerboundPackets1_13.SET_BEACON_EFFECT);
-                    wrapper.write(Type.VAR_INT, wrapper.read(Type.INT)); //Primary Effect
-
-                    wrapper.write(Type.VAR_INT, wrapper.read(Type.INT)); //Secondary Effect
-
-                    break;
-                case "MC|TrSel":
-                    wrapper.setPacketType(ServerboundPackets1_13.SELECT_TRADE);
-                    wrapper.write(Type.VAR_INT, wrapper.read(Type.INT)); //Slot
-
-                    break;
-                case "MC|PickItem":
-                    wrapper.setPacketType(ServerboundPackets1_13.PICK_ITEM);
-                    break;
-                default:
-                    String newChannel = InventoryPackets.getNewPluginChannelId(channel);
-                    if (newChannel == null) {
-                        if (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug()) {
-                            ViaBackwards.getPlatform().getLogger().warning("Ignoring serverbound plugin message with channel: " + channel);
-                        }
-                        wrapper.cancel();
-                        return;
-                    }
-                    wrapper.write(Type.STRING, newChannel);
-
-                    if (newChannel.equals("minecraft:register") || newChannel.equals("minecraft:unregister")) {
-                        String[] channels = new String(wrapper.read(Type.REMAINING_BYTES), StandardCharsets.UTF_8).split("\0");
-                        List<String> rewrittenChannels = new ArrayList<>();
-                        for (String s : channels) {
-                            String rewritten = InventoryPackets.getNewPluginChannelId(s);
-                            if (rewritten != null) {
-                                rewrittenChannels.add(rewritten);
-                            } else if (!Via.getConfig().isSuppressConversionWarnings() || Via.getManager().isDebug()) {
-                                ViaBackwards.getPlatform().getLogger().warning("Ignoring plugin channel in serverbound " + Key.stripMinecraftNamespace(newChannel).toUpperCase(Locale.ROOT) + ": " + s);
-                            }
-                        }
-                        if (!rewrittenChannels.isEmpty()) {
-                            wrapper.write(Type.REMAINING_BYTES, Joiner.on('\0').join(rewrittenChannels).getBytes(StandardCharsets.UTF_8));
-                        } else {
-                            wrapper.cancel();
-                            return;
-                        }
-                    }
-                    break;
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.STATISTICS, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT);
-                handler(wrapper -> {
-                    int size = wrapper.get(Type.VAR_INT, 0);
-                    int newSize = size;
-                    for (int i = 0; i < size; i++) {
-                        int categoryId = wrapper.read(Type.VAR_INT);
-                        int statisticId = wrapper.read(Type.VAR_INT);
-
-                        String name = "";
-                        // categories 0-7 (items, blocks, entities) - probably not feasible
-                        switch (categoryId) {
-                            case 0:
-                            case 1:
-                            case 2:
-                            case 3:
-                            case 4:
-                            case 5:
-                            case 6:
-                            case 7:
-                                wrapper.read(Type.VAR_INT); // remove value
-                                newSize--;
-                                continue;
-                            case 8:
-                                name = protocol.getMappingData().getStatisticMappings().get(statisticId);
-                                if (name == null) {
-                                    wrapper.read(Type.VAR_INT);
-                                    newSize--;
-                                    continue;
-                                }
-                                break;
-                        }
-
-                        wrapper.write(Type.STRING, name); // string id
-                        wrapper.passthrough(Type.VAR_INT); // value
-                    }
-
-                    if (newSize != size) {
-                        wrapper.set(Type.VAR_INT, 0, newSize);
-                    }
-                });
-            }
-        });
-    }
-
-    private static boolean startsWithIgnoreCase(String string, String prefix) {
-        if (string.length() < prefix.length()) {
-            return false;
-        }
-        return string.regionMatches(true, 0, prefix, 0, prefix.length());
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13_1to1_13_2/Protocol1_13_1To1_13_2.java

@@ -1,80 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2;
-
-import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.packets.EntityPackets1_13_2;
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.packets.InventoryPackets1_13_2;
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.packets.WorldPackets1_13_2;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
-
-public class Protocol1_13_1To1_13_2 extends BackwardsProtocol<ClientboundPackets1_13, ClientboundPackets1_13, ServerboundPackets1_13, ServerboundPackets1_13> {
-
-    public Protocol1_13_1To1_13_2() {
-        super(ClientboundPackets1_13.class, ClientboundPackets1_13.class, ServerboundPackets1_13.class, ServerboundPackets1_13.class);
-    }
-
-    @Override
-    protected void registerPackets() {
-        InventoryPackets1_13_2.register(this);
-        WorldPackets1_13_2.register(this);
-        EntityPackets1_13_2.register(this);
-
-        registerServerbound(ServerboundPackets1_13.EDIT_BOOK, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.ITEM1_13, Type.ITEM1_13_2);
-            }
-        });
-
-        registerClientbound(ClientboundPackets1_13.ADVANCEMENTS, wrapper -> {
-            wrapper.passthrough(Type.BOOLEAN); // Reset/clear
-            int size = wrapper.passthrough(Type.VAR_INT); // Mapping size
-
-            for (int i = 0; i < size; i++) {
-                wrapper.passthrough(Type.STRING); // Identifier
-                wrapper.passthrough(Type.OPTIONAL_STRING); // Parent
-
-                // Display data
-                if (wrapper.passthrough(Type.BOOLEAN)) {
-                    wrapper.passthrough(Type.COMPONENT); // Title
-                    wrapper.passthrough(Type.COMPONENT); // Description
-                    Item icon = wrapper.read(Type.ITEM1_13_2);
-                    wrapper.write(Type.ITEM1_13, icon);
-                    wrapper.passthrough(Type.VAR_INT); // Frame type
-                    int flags = wrapper.passthrough(Type.INT); // Flags
-                    if ((flags & 1) != 0)
-                        wrapper.passthrough(Type.STRING); // Background texture
-                    wrapper.passthrough(Type.FLOAT); // X
-                    wrapper.passthrough(Type.FLOAT); // Y
-                }
-
-                wrapper.passthrough(Type.STRING_ARRAY); // Criteria
-
-                int arrayLength = wrapper.passthrough(Type.VAR_INT);
-                for (int array = 0; array < arrayLength; array++) {
-                    wrapper.passthrough(Type.STRING_ARRAY); // String array
-                }
-            }
-        });
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13_1to1_13_2/packets/EntityPackets1_13_2.java

@@ -1,92 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.packets;
-
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.Protocol1_13_1To1_13_2;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_13;
-import com.viaversion.viaversion.api.type.types.version.Types1_13_2;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-
-public class EntityPackets1_13_2 {
-
-
-    public static void register(Protocol1_13_1To1_13_2 protocol) {
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_MOB, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Entity UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_13_2.METADATA_LIST, Types1_13.METADATA_LIST); // 12 - Metadata
-
-                handler(wrapper -> {
-                    for (Metadata metadata : wrapper.get(Types1_13.METADATA_LIST, 0)) {
-                        metadata.setMetaType(Types1_13.META_TYPES.byId(metadata.metaType().typeId()));
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_PLAYER, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                map(Types1_13_2.METADATA_LIST, Types1_13.METADATA_LIST); // 7 - Metadata
-
-                handler(wrapper -> {
-                    for (Metadata metadata : wrapper.get(Types1_13.METADATA_LIST, 0)) {
-                        metadata.setMetaType(Types1_13.META_TYPES.byId(metadata.metaType().typeId()));
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.ENTITY_METADATA, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Types1_13_2.METADATA_LIST, Types1_13.METADATA_LIST); // 1 - Metadata list
-
-                handler(wrapper -> {
-                    for (Metadata metadata : wrapper.get(Types1_13.METADATA_LIST, 0)) {
-                        metadata.setMetaType(Types1_13.META_TYPES.byId(metadata.metaType().typeId()));
-                    }
-                });
-            }
-        });
-    }
-
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13_1to1_13_2/packets/InventoryPackets1_13_2.java

@@ -1,136 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.packets;
-
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.Protocol1_13_1To1_13_2;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
-
-public class InventoryPackets1_13_2 {
-
-    public static void register(Protocol1_13_1To1_13_2 protocol) {
-        protocol.registerClientbound(ClientboundPackets1_13.SET_SLOT, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.SHORT); // 1 - Slot ID
-                map(Type.ITEM1_13_2, Type.ITEM1_13); // 2 - Slot Value
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.WINDOW_ITEMS, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.ITEM1_13_2_SHORT_ARRAY, Type.ITEM1_13_SHORT_ARRAY); // 1 - Window Values
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.PLUGIN_MESSAGE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.STRING); // Channel
-                handler(wrapper -> {
-                    String channel = wrapper.get(Type.STRING, 0);
-                    if (channel.equals("minecraft:trader_list") || channel.equals("trader_list")) {
-                        wrapper.passthrough(Type.INT); // Passthrough Window ID
-
-                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
-                        for (int i = 0; i < size; i++) {
-                            // Input Item
-                            wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
-                            // Output Item
-                            wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
-
-                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN); // Has second item
-                            if (secondItem) {
-                                wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
-                            }
-
-                            wrapper.passthrough(Type.BOOLEAN); // Trade disabled
-                            wrapper.passthrough(Type.INT); // Number of tools uses
-                            wrapper.passthrough(Type.INT); // Maximum number of trade uses
-                        }
-                    }
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.ENTITY_EQUIPMENT, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.VAR_INT); // 1 - Slot ID
-                map(Type.ITEM1_13_2, Type.ITEM1_13); // 2 - Item
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.DECLARE_RECIPES, wrapper -> {
-            int recipesNo = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < recipesNo; i++) {
-                wrapper.passthrough(Type.STRING); // Id
-                String type = wrapper.passthrough(Type.STRING);
-                if (type.equals("crafting_shapeless")) {
-                    wrapper.passthrough(Type.STRING); // Group
-                    int ingredientsNo = wrapper.passthrough(Type.VAR_INT);
-                    for (int i1 = 0; i1 < ingredientsNo; i1++) {
-                        wrapper.write(Type.ITEM1_13_ARRAY, wrapper.read(Type.ITEM1_13_2_ARRAY));
-                    }
-                    wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
-                } else if (type.equals("crafting_shaped")) {
-                    int ingredientsNo = wrapper.passthrough(Type.VAR_INT) * wrapper.passthrough(Type.VAR_INT);
-                    wrapper.passthrough(Type.STRING); // Group
-                    for (int i1 = 0; i1 < ingredientsNo; i1++) {
-                        wrapper.write(Type.ITEM1_13_ARRAY, wrapper.read(Type.ITEM1_13_2_ARRAY));
-                    }
-                    wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
-                } else if (type.equals("smelting")) {
-                    wrapper.passthrough(Type.STRING); // Group
-                    // Ingredient start
-                    wrapper.write(Type.ITEM1_13_ARRAY, wrapper.read(Type.ITEM1_13_2_ARRAY));
-                    // Ingredient end
-                    wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
-                    wrapper.passthrough(Type.FLOAT); // EXP
-                    wrapper.passthrough(Type.VAR_INT); // Cooking time
-                }
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_13.CLICK_WINDOW, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.SHORT); // 1 - Slot
-                map(Type.BYTE); // 2 - Button
-                map(Type.SHORT); // 3 - Action number
-                map(Type.VAR_INT); // 4 - Mode
-                map(Type.ITEM1_13, Type.ITEM1_13_2); // 5 - Clicked Item
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_13.CREATIVE_INVENTORY_ACTION, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.SHORT); // 0 - Slot
-                map(Type.ITEM1_13, Type.ITEM1_13_2); // 1 - Clicked Item
-            }
-        });
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13_2to1_14/packets/PlayerPackets1_14.java

@@ -1,130 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_13_2to1_14.packets;
-
-import com.viaversion.viabackwards.protocol.protocol1_13_2to1_14.Protocol1_13_2To1_14;
-import com.viaversion.viabackwards.protocol.protocol1_13_2to1_14.storage.DifficultyStorage;
-import com.viaversion.viaversion.api.minecraft.Position;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.rewriter.RewriterBase;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_14to1_13_2.ClientboundPackets1_14;
-
-public class PlayerPackets1_14 extends RewriterBase<Protocol1_13_2To1_14> {
-
-    public PlayerPackets1_14(Protocol1_13_2To1_14 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_14.SERVER_DIFFICULTY, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE);
-                read(Type.BOOLEAN); // Locked
-                handler(wrapper -> {
-                    byte difficulty = wrapper.get(Type.UNSIGNED_BYTE, 0).byteValue();
-                    wrapper.user().get(DifficultyStorage.class).setDifficulty(difficulty);
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_14.OPEN_SIGN_EDITOR, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.POSITION1_14, Type.POSITION1_8);
-            }
-        });
-        protocol.registerServerbound(ServerboundPackets1_13.QUERY_BLOCK_NBT, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT);
-                map(Type.POSITION1_8, Type.POSITION1_14);
-            }
-        });
-        protocol.registerServerbound(ServerboundPackets1_13.PLAYER_DIGGING, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // Action
-                map(Type.POSITION1_8, Type.POSITION1_14); // Position
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_13.RECIPE_BOOK_DATA, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT);
-                handler(wrapper -> {
-                    int type = wrapper.get(Type.VAR_INT, 0);
-                    if (type == 0) {
-                        wrapper.passthrough(Type.STRING);
-                    } else if (type == 1) {
-                        wrapper.passthrough(Type.BOOLEAN); // Crafting Recipe Book Open
-                        wrapper.passthrough(Type.BOOLEAN); // Crafting Recipe Filter Active
-                        wrapper.passthrough(Type.BOOLEAN); // Smelting Recipe Book Open
-                        wrapper.passthrough(Type.BOOLEAN); // Smelting Recipe Filter Active
-
-                        // Blast furnace/smoker data
-                        wrapper.write(Type.BOOLEAN, false);
-                        wrapper.write(Type.BOOLEAN, false);
-                        wrapper.write(Type.BOOLEAN, false);
-                        wrapper.write(Type.BOOLEAN, false);
-                    }
-                });
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_13.UPDATE_COMMAND_BLOCK, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.POSITION1_8, Type.POSITION1_14);
-            }
-        });
-        protocol.registerServerbound(ServerboundPackets1_13.UPDATE_STRUCTURE_BLOCK, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.POSITION1_8, Type.POSITION1_14);
-            }
-        });
-        protocol.registerServerbound(ServerboundPackets1_13.UPDATE_SIGN, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.POSITION1_8, Type.POSITION1_14);
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_13.PLAYER_BLOCK_PLACEMENT, wrapper -> {
-            Position position = wrapper.read(Type.POSITION1_8);
-            int face = wrapper.read(Type.VAR_INT);
-            int hand = wrapper.read(Type.VAR_INT);
-            float x = wrapper.read(Type.FLOAT);
-            float y = wrapper.read(Type.FLOAT);
-            float z = wrapper.read(Type.FLOAT);
-
-            wrapper.write(Type.VAR_INT, hand);
-            wrapper.write(Type.POSITION1_14, position);
-            wrapper.write(Type.VAR_INT, face);
-            wrapper.write(Type.FLOAT, x);
-            wrapper.write(Type.FLOAT, y);
-            wrapper.write(Type.FLOAT, z);
-            wrapper.write(Type.BOOLEAN, false); // Inside block
-        });
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13to1_13_1/packets/EntityPackets1_13_1.java

@@ -1,174 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.packets;
-
-import com.viaversion.viabackwards.ViaBackwards;
-import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.Protocol1_13To1_13_1;
-import com.viaversion.viaversion.api.minecraft.Particle;
-import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_13;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_13;
-import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import java.util.List;
-
-public class EntityPackets1_13_1 extends LegacyEntityRewriter<ClientboundPackets1_13, Protocol1_13To1_13_1> {
-
-    public EntityPackets1_13_1(Protocol1_13To1_13_1 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_ENTITY, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.BYTE); // 2 - Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Pitch
-                map(Type.BYTE); // 7 - Yaw
-                map(Type.INT); // 8 - Data
-
-                handler(wrapper -> {
-                    int entityId = wrapper.get(Type.VAR_INT, 0);
-                    byte type = wrapper.get(Type.BYTE, 0);
-                    EntityTypes1_13.EntityType entType = EntityTypes1_13.getTypeFromId(type, true);
-                    if (entType == null) {
-                        ViaBackwards.getPlatform().getLogger().warning("Could not find 1.13 entity type " + type);
-                        return;
-                    }
-
-                    // Rewrite falling block
-                    if (entType.is(EntityTypes1_13.EntityType.FALLING_BLOCK)) {
-                        int data = wrapper.get(Type.INT, 0);
-                        wrapper.set(Type.INT, 0, protocol.getMappingData().getNewBlockStateId(data));
-                    }
-
-                    // Track Entity
-                    tracker(wrapper.user()).addEntity(entityId, entType);
-                });
-            }
-        });
-
-        registerTracker(ClientboundPackets1_13.SPAWN_EXPERIENCE_ORB, EntityTypes1_13.EntityType.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_13.SPAWN_GLOBAL_ENTITY, EntityTypes1_13.EntityType.LIGHTNING_BOLT);
-
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_MOB, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Entity UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_13.METADATA_LIST); // 12 - Metadata
-
-                // Track Entity
-                handler(getTrackerHandler());
-
-                // Rewrite Metadata
-                handler(wrapper -> {
-                    List<Metadata> metadata = wrapper.get(Types1_13.METADATA_LIST, 0);
-                    handleMetadata(wrapper.get(Type.VAR_INT, 0), metadata, wrapper.user());
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_PLAYER, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                map(Types1_13.METADATA_LIST); // 7 - Metadata
-
-                handler(getTrackerAndMetaHandler(Types1_13.METADATA_LIST, EntityTypes1_13.EntityType.PLAYER));
-            }
-        });
-
-        registerTracker(ClientboundPackets1_13.SPAWN_PAINTING, EntityTypes1_13.EntityType.PAINTING);
-        registerJoinGame(ClientboundPackets1_13.JOIN_GAME, EntityTypes1_13.EntityType.PLAYER);
-        registerRespawn(ClientboundPackets1_13.RESPAWN);
-        registerRemoveEntities(ClientboundPackets1_13.DESTROY_ENTITIES);
-        registerMetadataRewriter(ClientboundPackets1_13.ENTITY_METADATA, Types1_13.METADATA_LIST);
-    }
-
-    @Override
-    protected void registerRewrites() {
-        // Rewrite items & blocks
-        filter().handler((event, meta) -> {
-            if (meta.metaType() == Types1_13.META_TYPES.itemType) {
-                protocol.getItemRewriter().handleItemToClient(event.user(), (Item) meta.getValue());
-            } else if (meta.metaType() == Types1_13.META_TYPES.blockStateType) {
-                // Convert to new block id
-                int data = (int) meta.getValue();
-                meta.setValue(protocol.getMappingData().getNewBlockStateId(data));
-            } else if (meta.metaType() == Types1_13.META_TYPES.particleType) {
-                rewriteParticle(event.user(), (Particle) meta.getValue());
-            } else if (meta.metaType() == Types1_13.META_TYPES.optionalComponentType || meta.metaType() == Types1_13.META_TYPES.componentType) {
-                JsonElement element = meta.value();
-                protocol.translatableRewriter().processText(event.user(), element);
-            }
-        });
-
-        // Remove shooter UUID
-        filter().type(EntityTypes1_13.EntityType.ABSTRACT_ARROW).cancel(7);
-
-        // Move colors to old position
-        filter().type(EntityTypes1_13.EntityType.SPECTRAL_ARROW).index(8).toIndex(7);
-
-        // Move loyalty level to old position
-        filter().type(EntityTypes1_13.EntityType.TRIDENT).index(8).toIndex(7);
-
-        // Rewrite Minecart blocks
-        filter().type(EntityTypes1_13.EntityType.MINECART_ABSTRACT).index(9).handler((event, meta) -> {
-            int data = (int) meta.getValue();
-            meta.setValue(protocol.getMappingData().getNewBlockStateId(data));
-        });
-    }
-
-    @Override
-    public EntityType typeFromId(int typeId) {
-        return EntityTypes1_13.getTypeFromId(typeId, false);
-    }
-
-    @Override
-    public EntityType objectTypeFromId(int typeId) {
-        return EntityTypes1_13.getTypeFromId(typeId, true);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_13to1_13_1/packets/InventoryPackets1_13_1.java

@@ -1,73 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.packets;
-
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.Protocol1_13To1_13_1;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
-import com.viaversion.viaversion.rewriter.ItemRewriter;
-
-public class InventoryPackets1_13_1 extends ItemRewriter<ClientboundPackets1_13, ServerboundPackets1_13, Protocol1_13To1_13_1> {
-
-    public InventoryPackets1_13_1(Protocol1_13To1_13_1 protocol) {
-        super(protocol, Type.ITEM1_13, Type.ITEM1_13_SHORT_ARRAY);
-    }
-
-    @Override
-    public void registerPackets() {
-        registerSetCooldown(ClientboundPackets1_13.COOLDOWN);
-        registerWindowItems(ClientboundPackets1_13.WINDOW_ITEMS);
-        registerSetSlot(ClientboundPackets1_13.SET_SLOT);
-
-        protocol.registerClientbound(ClientboundPackets1_13.PLUGIN_MESSAGE, wrapper -> {
-            String channel = wrapper.passthrough(Type.STRING);
-            if (channel.equals("minecraft:trader_list")) {
-                wrapper.passthrough(Type.INT); //Passthrough Window ID
-
-                int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
-                for (int i = 0; i < size; i++) {
-                    //Input Item
-                    Item input = wrapper.passthrough(Type.ITEM1_13);
-                    handleItemToClient(wrapper.user(), input);
-                    //Output Item
-                    Item output = wrapper.passthrough(Type.ITEM1_13);
-                    handleItemToClient(wrapper.user(), output);
-
-                    boolean secondItem = wrapper.passthrough(Type.BOOLEAN); //Has second item
-                    if (secondItem) {
-                        //Second Item
-                        Item second = wrapper.passthrough(Type.ITEM1_13);
-                        handleItemToClient(wrapper.user(), second);
-                    }
-
-                    wrapper.passthrough(Type.BOOLEAN); //Trade disabled
-                    wrapper.passthrough(Type.INT); //Number of tools uses
-                    wrapper.passthrough(Type.INT); //Maximum number of trade uses
-                }
-            }
-        });
-
-        registerEntityEquipment(ClientboundPackets1_13.ENTITY_EQUIPMENT);
-        registerClickWindow(ServerboundPackets1_13.CLICK_WINDOW);
-        registerCreativeInvAction(ServerboundPackets1_13.CREATIVE_INVENTORY_ACTION);
-
-        registerSpawnParticle(ClientboundPackets1_13.SPAWN_PARTICLE, Type.FLOAT);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_14_4to1_15/data/EntityTypeMapping.java

@@ -1,29 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_14_4to1_15.data;
-
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_14;
-
-public class EntityTypeMapping {
-
-    // There's only the bee, so not much to do here
-    public static int getOldEntityId(int entityId) {
-        if (entityId == 4) return EntityTypes1_14.PUFFERFISH.getId(); // Flying pufferfish!
-        return entityId >= 5 ? entityId - 1 : entityId;
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_14_4to1_15/packets/EntityPackets1_15.java

@@ -1,227 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_14_4to1_15.packets;
-
-import com.viaversion.viabackwards.api.rewriters.EntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_14_4to1_15.Protocol1_14_4To1_15;
-import com.viaversion.viabackwards.protocol.protocol1_14_4to1_15.data.EntityTypeMapping;
-import com.viaversion.viabackwards.protocol.protocol1_14_4to1_15.data.ImmediateRespawn;
-import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_15;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_14;
-import com.viaversion.viaversion.protocols.protocol1_14to1_13_2.ServerboundPackets1_14;
-import com.viaversion.viaversion.protocols.protocol1_15to1_14_4.ClientboundPackets1_15;
-import java.util.ArrayList;
-
-public class EntityPackets1_15 extends EntityRewriter<ClientboundPackets1_15, Protocol1_14_4To1_15> {
-
-    public EntityPackets1_15(Protocol1_14_4To1_15 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_15.UPDATE_HEALTH, wrapper -> {
-            float health = wrapper.passthrough(Type.FLOAT);
-            if (health > 0) return;
-            if (!wrapper.user().get(ImmediateRespawn.class).isImmediateRespawn()) return;
-
-            // Instantly request respawn when 1.15 gamerule is set
-            PacketWrapper statusPacket = wrapper.create(ServerboundPackets1_14.CLIENT_STATUS);
-            statusPacket.write(Type.VAR_INT, 0);
-            statusPacket.sendToServer(Protocol1_14_4To1_15.class);
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_15.GAME_EVENT, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE);
-                map(Type.FLOAT);
-                handler(wrapper -> {
-                    if (wrapper.get(Type.UNSIGNED_BYTE, 0) == 11) {
-                        wrapper.user().get(ImmediateRespawn.class).setImmediateRespawn(wrapper.get(Type.FLOAT, 0) == 1);
-                    }
-                });
-            }
-        });
-
-        registerTrackerWithData(ClientboundPackets1_15.SPAWN_ENTITY, EntityTypes1_15.FALLING_BLOCK);
-
-        protocol.registerClientbound(ClientboundPackets1_15.SPAWN_MOB, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Entity UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                handler(wrapper -> wrapper.write(Types1_14.METADATA_LIST, new ArrayList<>())); // Metadata is no longer sent in 1.15, so we have to send an empty one
-
-                handler(wrapper -> {
-                    int type = wrapper.get(Type.VAR_INT, 1);
-                    EntityType entityType = EntityTypes1_15.getTypeFromId(type);
-                    tracker(wrapper.user()).addEntity(wrapper.get(Type.VAR_INT, 0), entityType);
-                    wrapper.set(Type.VAR_INT, 1, EntityTypeMapping.getOldEntityId(type));
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_15.RESPAWN, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.INT);
-                read(Type.LONG); // Seed
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_15.JOIN_GAME, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.INT); // 0 - Entity ID
-                map(Type.UNSIGNED_BYTE); // 1 - Gamemode
-                map(Type.INT); // 2 - Dimension
-
-                read(Type.LONG); // Seed
-
-                map(Type.UNSIGNED_BYTE); // 3 - Max Players
-                map(Type.STRING); // 4 - Level Type
-                map(Type.VAR_INT); // 5 - View Distance
-                map(Type.BOOLEAN); // 6 - Reduce Debug Info
-
-                handler(getTrackerHandler(EntityTypes1_15.PLAYER, Type.INT));
-
-                handler(wrapper -> {
-                    boolean immediateRespawn = !wrapper.read(Type.BOOLEAN); // Inverted
-                    wrapper.user().get(ImmediateRespawn.class).setImmediateRespawn(immediateRespawn);
-                });
-            }
-        });
-
-        registerTracker(ClientboundPackets1_15.SPAWN_EXPERIENCE_ORB, EntityTypes1_15.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_15.SPAWN_GLOBAL_ENTITY, EntityTypes1_15.LIGHTNING_BOLT);
-        registerTracker(ClientboundPackets1_15.SPAWN_PAINTING, EntityTypes1_15.PAINTING);
-
-        protocol.registerClientbound(ClientboundPackets1_15.SPAWN_PLAYER, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                handler(wrapper -> wrapper.write(Types1_14.METADATA_LIST, new ArrayList<>())); // Metadata is no longer sent in 1.15, so we have to send an empty one
-
-                handler(getTrackerHandler(EntityTypes1_15.PLAYER, Type.VAR_INT));
-            }
-        });
-
-        registerRemoveEntities(ClientboundPackets1_15.DESTROY_ENTITIES);
-        registerMetadataRewriter(ClientboundPackets1_15.ENTITY_METADATA, Types1_14.METADATA_LIST);
-
-        // Attributes (get rid of generic.flyingSpeed for the Bee remap)
-        protocol.registerClientbound(ClientboundPackets1_15.ENTITY_PROPERTIES, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT);
-                map(Type.INT);
-                handler(wrapper -> {
-                    int entityId = wrapper.get(Type.VAR_INT, 0);
-                    EntityType entityType = tracker(wrapper.user()).entityType(entityId);
-                    if (entityType != EntityTypes1_15.BEE) return;
-
-                    int size = wrapper.get(Type.INT, 0);
-                    int newSize = size;
-                    for (int i = 0; i < size; i++) {
-                        String key = wrapper.read(Type.STRING);
-                        if (key.equals("generic.flyingSpeed")) {
-                            newSize--;
-                            wrapper.read(Type.DOUBLE);
-                            int modSize = wrapper.read(Type.VAR_INT);
-                            for (int j = 0; j < modSize; j++) {
-                                wrapper.read(Type.UUID);
-                                wrapper.read(Type.DOUBLE);
-                                wrapper.read(Type.BYTE);
-                            }
-                        } else {
-                            wrapper.write(Type.STRING, key);
-                            wrapper.passthrough(Type.DOUBLE);
-                            int modSize = wrapper.passthrough(Type.VAR_INT);
-                            for (int j = 0; j < modSize; j++) {
-                                wrapper.passthrough(Type.UUID);
-                                wrapper.passthrough(Type.DOUBLE);
-                                wrapper.passthrough(Type.BYTE);
-                            }
-                        }
-                    }
-
-                    if (newSize != size) {
-                        wrapper.set(Type.INT, 0, newSize);
-                    }
-                });
-            }
-        });
-    }
-
-    @Override
-    protected void registerRewrites() {
-        registerMetaTypeHandler(Types1_14.META_TYPES.itemType, Types1_14.META_TYPES.blockStateType, null, Types1_14.META_TYPES.particleType,
-            Types1_14.META_TYPES.componentType, Types1_14.META_TYPES.optionalComponentType);
-
-        filter().type(EntityTypes1_15.LIVINGENTITY).removeIndex(12);
-
-        filter().type(EntityTypes1_15.BEE).cancel(15);
-        filter().type(EntityTypes1_15.BEE).cancel(16);
-
-        mapEntityTypeWithData(EntityTypes1_15.BEE, EntityTypes1_15.PUFFERFISH).jsonName().spawnMetadata(storage -> {
-            storage.add(new Metadata(14, Types1_14.META_TYPES.booleanType, false));
-            storage.add(new Metadata(15, Types1_14.META_TYPES.varIntType, 2));
-        });
-
-        filter().type(EntityTypes1_15.ENDERMAN).cancel(16);
-        filter().type(EntityTypes1_15.TRIDENT).cancel(10);
-
-        // Redundant health removed in 1.15
-        filter().type(EntityTypes1_15.WOLF).addIndex(17);
-        filter().type(EntityTypes1_15.WOLF).index(8).handler((event, meta) -> {
-            event.createExtraMeta(new Metadata(17/*WOLF_HEALTH*/, Types1_14.META_TYPES.floatType, event.meta().value()));
-        });
-    }
-
-    @Override
-    public EntityType typeFromId(int typeId) {
-        return EntityTypes1_15.getTypeFromId(typeId);
-    }
-
-    @Override
-    public int newEntityId(final int newId) {
-        return EntityTypeMapping.getOldEntityId(newId);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_14to1_14_1/packets/EntityPackets1_14_1.java

@@ -1,102 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_14to1_14_1.packets;
-
-import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_14to1_14_1.Protocol1_14To1_14_1;
-import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_14;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_14;
-import com.viaversion.viaversion.protocols.protocol1_14to1_13_2.ClientboundPackets1_14;
-import java.util.List;
-
-public class EntityPackets1_14_1 extends LegacyEntityRewriter<ClientboundPackets1_14, Protocol1_14To1_14_1> {
-
-    public EntityPackets1_14_1(Protocol1_14To1_14_1 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        registerTracker(ClientboundPackets1_14.SPAWN_EXPERIENCE_ORB, EntityTypes1_14.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_14.SPAWN_GLOBAL_ENTITY, EntityTypes1_14.LIGHTNING_BOLT);
-        registerTracker(ClientboundPackets1_14.SPAWN_PAINTING, EntityTypes1_14.PAINTING);
-        registerTracker(ClientboundPackets1_14.SPAWN_PLAYER, EntityTypes1_14.PLAYER);
-        registerTracker(ClientboundPackets1_14.JOIN_GAME, EntityTypes1_14.PLAYER, Type.INT);
-        registerRemoveEntities(ClientboundPackets1_14.DESTROY_ENTITIES);
-
-        protocol.registerClientbound(ClientboundPackets1_14.SPAWN_ENTITY, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.VAR_INT); // 2 - Type
-
-                handler(getTrackerHandler());
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_14.SPAWN_MOB, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Entity UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_14.METADATA_LIST); // 12 - Metadata
-
-                handler(wrapper -> {
-                    int entityId = wrapper.get(Type.VAR_INT, 0);
-                    int type = wrapper.get(Type.VAR_INT, 1);
-
-                    // Register Type ID
-                    tracker(wrapper.user()).addEntity(entityId, EntityTypes1_14.getTypeFromId(type));
-
-                    List<Metadata> metadata = wrapper.get(Types1_14.METADATA_LIST, 0);
-                    handleMetadata(entityId, metadata, wrapper.user());
-                });
-            }
-        });
-
-        // Entity Metadata
-        registerMetadataRewriter(ClientboundPackets1_14.ENTITY_METADATA, Types1_14.METADATA_LIST);
-    }
-
-    @Override
-    protected void registerRewrites() {
-        filter().type(EntityTypes1_14.VILLAGER).cancel(15);
-        filter().type(EntityTypes1_14.VILLAGER).index(16).toIndex(15);
-        filter().type(EntityTypes1_14.WANDERING_TRADER).cancel(15);
-    }
-
-    @Override
-    public EntityType typeFromId(int typeId) {
-        return EntityTypes1_14.getTypeFromId(typeId);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_19_3to1_19_4/packets/BlockItemPackets1_19_4.java

@@ -1,124 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_19_3to1_19_4.packets;
-
-import com.viaversion.viabackwards.api.rewriters.BackwardsItemRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_19_3to1_19_4.Protocol1_19_3To1_19_4;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_18;
-import com.viaversion.viaversion.protocols.protocol1_19_3to1_19_1.ServerboundPackets1_19_3;
-import com.viaversion.viaversion.protocols.protocol1_19_3to1_19_1.rewriter.RecipeRewriter1_19_3;
-import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.ClientboundPackets1_19_4;
-import com.viaversion.viaversion.rewriter.BlockRewriter;
-import com.viaversion.viaversion.util.Key;
-
-public final class BlockItemPackets1_19_4 extends BackwardsItemRewriter<ClientboundPackets1_19_4, ServerboundPackets1_19_3, Protocol1_19_3To1_19_4> {
-
-    public BlockItemPackets1_19_4(final Protocol1_19_3To1_19_4 protocol) {
-        super(protocol, Type.ITEM1_13_2, Type.ITEM1_13_2_ARRAY);
-    }
-
-    @Override
-    public void registerPackets() {
-        final BlockRewriter<ClientboundPackets1_19_4> blockRewriter = BlockRewriter.for1_14(protocol);
-        blockRewriter.registerBlockAction(ClientboundPackets1_19_4.BLOCK_ACTION);
-        blockRewriter.registerBlockChange(ClientboundPackets1_19_4.BLOCK_CHANGE);
-        blockRewriter.registerVarLongMultiBlockChange(ClientboundPackets1_19_4.MULTI_BLOCK_CHANGE);
-        blockRewriter.registerEffect(ClientboundPackets1_19_4.EFFECT, 1010, 2001);
-        blockRewriter.registerChunkData1_19(ClientboundPackets1_19_4.CHUNK_DATA, ChunkType1_18::new);
-        blockRewriter.registerBlockEntityData(ClientboundPackets1_19_4.BLOCK_ENTITY_DATA);
-
-        protocol.registerClientbound(ClientboundPackets1_19_4.OPEN_WINDOW, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // Container id
-                map(Type.VAR_INT); // Container type
-                map(Type.COMPONENT); // Title
-                handler(wrapper -> {
-                    final int windowType = wrapper.get(Type.VAR_INT, 1);
-                    if (windowType == 21) { // New smithing menu
-                        wrapper.cancel();
-                    } else if (windowType > 21) {
-                        wrapper.set(Type.VAR_INT, 1, windowType - 1);
-                    }
-
-                    protocol.getTranslatableRewriter().processText(wrapper.user(), wrapper.get(Type.COMPONENT, 0));
-                });
-            }
-        });
-
-        registerSetCooldown(ClientboundPackets1_19_4.COOLDOWN);
-        registerWindowItems1_17_1(ClientboundPackets1_19_4.WINDOW_ITEMS);
-        registerSetSlot1_17_1(ClientboundPackets1_19_4.SET_SLOT);
-        registerAdvancements(ClientboundPackets1_19_4.ADVANCEMENTS);
-        registerEntityEquipmentArray(ClientboundPackets1_19_4.ENTITY_EQUIPMENT);
-        registerClickWindow1_17_1(ServerboundPackets1_19_3.CLICK_WINDOW);
-        registerTradeList1_19(ClientboundPackets1_19_4.TRADE_LIST);
-        registerCreativeInvAction(ServerboundPackets1_19_3.CREATIVE_INVENTORY_ACTION);
-        registerWindowPropertyEnchantmentHandler(ClientboundPackets1_19_4.WINDOW_PROPERTY);
-        registerSpawnParticle1_19(ClientboundPackets1_19_4.SPAWN_PARTICLE);
-
-        final RecipeRewriter1_19_3<ClientboundPackets1_19_4> recipeRewriter = new RecipeRewriter1_19_3<ClientboundPackets1_19_4>(protocol) {
-            @Override
-            public void handleCraftingShaped(final PacketWrapper wrapper) throws Exception {
-                final int ingredients = wrapper.passthrough(Type.VAR_INT) * wrapper.passthrough(Type.VAR_INT);
-                wrapper.passthrough(Type.STRING); // Group
-                wrapper.passthrough(Type.VAR_INT); // Crafting book category
-                for (int i = 0; i < ingredients; i++) {
-                    handleIngredient(wrapper);
-                }
-                rewrite(wrapper.user(), wrapper.passthrough(Type.ITEM1_13_2)); // Result
-
-                // Remove notification boolean
-                wrapper.read(Type.BOOLEAN);
-            }
-        };
-        protocol.registerClientbound(ClientboundPackets1_19_4.DECLARE_RECIPES, wrapper -> {
-            final int size = wrapper.passthrough(Type.VAR_INT);
-            int newSize = size;
-            for (int i = 0; i < size; i++) {
-                final String type = wrapper.read(Type.STRING);
-                final String cutType = Key.stripMinecraftNamespace(type);
-                if (cutType.equals("smithing_transform") || cutType.equals("smithing_trim")) {
-                    newSize--;
-                    wrapper.read(Type.STRING); // Recipe identifier
-                    wrapper.read(Type.ITEM1_13_2_ARRAY); // Template
-                    wrapper.read(Type.ITEM1_13_2_ARRAY); // Base
-                    wrapper.read(Type.ITEM1_13_2_ARRAY); // Additions
-                    if (cutType.equals("smithing_transform")) {
-                        wrapper.read(Type.ITEM1_13_2); // Result
-                    }
-                    continue;
-                } else if (cutType.equals("crafting_decorated_pot")) {
-                    newSize--;
-                    wrapper.read(Type.STRING); // Recipe identifier
-                    wrapper.read(Type.VAR_INT); // Crafting book category
-                    continue;
-                }
-
-                wrapper.write(Type.STRING, type);
-                wrapper.passthrough(Type.STRING); // Recipe Identifier
-                recipeRewriter.handleRecipeType(wrapper, cutType);
-            }
-
-            wrapper.set(Type.VAR_INT, 0, newSize);
-        });
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_2to1_20_3/Protocol1_20_2To1_20_3.java

@@ -1,419 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3;
-
-import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
-import com.viaversion.viabackwards.api.rewriters.SoundRewriter;
-import com.viaversion.viabackwards.api.rewriters.TranslatableRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.rewriter.BlockItemPacketRewriter1_20_3;
-import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.rewriter.EntityPacketRewriter1_20_3;
-import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.storage.ResourcepackIDStorage;
-import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.storage.SpawnPositionStorage;
-import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.api.minecraft.Position;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_20_3;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.packet.provider.PacketTypesProvider;
-import com.viaversion.viaversion.api.protocol.packet.provider.SimplePacketTypesProvider;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-import com.viaversion.viaversion.libs.fastutil.Pair;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
-import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.rewriter.CommandRewriter1_19_4;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundConfigurationPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundPacket1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundConfigurationPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPacket1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.Protocol1_20_3To1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ClientboundConfigurationPackets1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ClientboundPacket1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ClientboundPackets1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ServerboundPacket1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ServerboundPackets1_20_3;
-import com.viaversion.viaversion.rewriter.ComponentRewriter.ReadType;
-import com.viaversion.viaversion.rewriter.StatisticsRewriter;
-import com.viaversion.viaversion.rewriter.TagRewriter;
-import com.viaversion.viaversion.util.ComponentUtil;
-import java.util.BitSet;
-import java.util.UUID;
-
-import static com.viaversion.viaversion.util.ProtocolUtil.packetTypeMap;
-
-public final class Protocol1_20_2To1_20_3 extends BackwardsProtocol<ClientboundPacket1_20_3, ClientboundPacket1_20_2, ServerboundPacket1_20_3, ServerboundPacket1_20_2> {
-
-    public static final BackwardsMappings MAPPINGS = new BackwardsMappings("1.20.3", "1.20.2", Protocol1_20_3To1_20_2.class);
-    private final EntityPacketRewriter1_20_3 entityRewriter = new EntityPacketRewriter1_20_3(this);
-    private final BlockItemPacketRewriter1_20_3 itemRewriter = new BlockItemPacketRewriter1_20_3(this);
-    private final TranslatableRewriter<ClientboundPacket1_20_3> translatableRewriter = new TranslatableRewriter<>(this, ReadType.NBT);
-    private final TagRewriter<ClientboundPacket1_20_3> tagRewriter = new TagRewriter<>(this);
-
-    public Protocol1_20_2To1_20_3() {
-        super(ClientboundPacket1_20_3.class, ClientboundPacket1_20_2.class, ServerboundPacket1_20_3.class, ServerboundPacket1_20_2.class);
-    }
-
-    @Override
-    protected void registerPackets() {
-        super.registerPackets();
-
-        tagRewriter.registerGeneric(ClientboundPackets1_20_3.TAGS);
-
-        final SoundRewriter<ClientboundPacket1_20_3> soundRewriter = new SoundRewriter<>(this);
-        soundRewriter.register1_19_3Sound(ClientboundPackets1_20_3.SOUND);
-        soundRewriter.register1_19_3Sound(ClientboundPackets1_20_3.ENTITY_SOUND);
-        soundRewriter.registerStopSound(ClientboundPackets1_20_3.STOP_SOUND);
-
-        new StatisticsRewriter<>(this).register(ClientboundPackets1_20_3.STATISTICS);
-        new CommandRewriter1_19_4<ClientboundPacket1_20_3>(this) {
-            @Override
-            public void handleArgument(final PacketWrapper wrapper, final String argumentType) throws Exception {
-                if (argumentType.equals("minecraft:style")) {
-                    wrapper.write(Type.VAR_INT, 1); // Phrase
-                } else {
-                    super.handleArgument(wrapper, argumentType);
-                }
-            }
-        }.registerDeclareCommands1_19(ClientboundPackets1_20_3.DECLARE_COMMANDS);
-
-        registerClientbound(ClientboundPackets1_20_3.RESET_SCORE, ClientboundPackets1_20_2.UPDATE_SCORE, wrapper -> {
-            wrapper.passthrough(Type.STRING); // Owner
-            wrapper.write(Type.VAR_INT, 1); // Reset score
-
-            final String objectiveName = wrapper.read(Type.OPTIONAL_STRING);
-            wrapper.write(Type.STRING, objectiveName != null ? objectiveName : ""); // Objective name
-        });
-        registerClientbound(ClientboundPackets1_20_3.UPDATE_SCORE, wrapper -> {
-            wrapper.passthrough(Type.STRING); // Owner
-            wrapper.write(Type.VAR_INT, 0); // Change score
-            wrapper.passthrough(Type.STRING); // Objective name
-            wrapper.passthrough(Type.VAR_INT); // Score
-
-            // Remove display and number format
-            wrapper.clearInputBuffer();
-        });
-        registerClientbound(ClientboundPackets1_20_3.SCOREBOARD_OBJECTIVE, wrapper -> {
-            wrapper.passthrough(Type.STRING); // Objective Name
-            final byte action = wrapper.passthrough(Type.BYTE); // Method
-            if (action == 0 || action == 2) {
-                convertComponent(wrapper); // Display Name
-                wrapper.passthrough(Type.VAR_INT); // Render type
-
-                // Remove number format
-                wrapper.clearInputBuffer();
-            }
-        });
-
-        cancelClientbound(ClientboundPackets1_20_3.TICKING_STATE);
-        cancelClientbound(ClientboundPackets1_20_3.TICKING_STEP);
-
-        registerServerbound(ServerboundPackets1_20_2.UPDATE_JIGSAW_BLOCK, wrapper -> {
-            wrapper.passthrough(Type.POSITION1_14); // Position
-            wrapper.passthrough(Type.STRING); // Name
-            wrapper.passthrough(Type.STRING); // Target
-            wrapper.passthrough(Type.STRING); // Pool
-            wrapper.passthrough(Type.STRING); // Final state
-            wrapper.passthrough(Type.STRING); // Joint type
-            wrapper.write(Type.VAR_INT, 0); // Selection priority
-            wrapper.write(Type.VAR_INT, 0); // Placement priority
-        });
-
-        // Components are now (mostly) written as nbt instead of json strings
-        registerClientbound(ClientboundPackets1_20_3.ADVANCEMENTS, wrapper -> {
-            wrapper.passthrough(Type.BOOLEAN); // Reset/clear
-            final int size = wrapper.passthrough(Type.VAR_INT); // Mapping size
-            for (int i = 0; i < size; i++) {
-                wrapper.passthrough(Type.STRING); // Identifier
-                wrapper.passthrough(Type.OPTIONAL_STRING); // Parent
-
-                // Display data
-                if (wrapper.passthrough(Type.BOOLEAN)) {
-                    convertComponent(wrapper); // Title
-                    convertComponent(wrapper); // Description
-                    itemRewriter.handleItemToClient(wrapper.user(), wrapper.passthrough(Type.ITEM1_20_2)); // Icon
-                    wrapper.passthrough(Type.VAR_INT); // Frame type
-                    final int flags = wrapper.passthrough(Type.INT);
-                    if ((flags & 1) != 0) {
-                        wrapper.passthrough(Type.STRING); // Background texture
-                    }
-                    wrapper.passthrough(Type.FLOAT); // X
-                    wrapper.passthrough(Type.FLOAT); // Y
-                }
-
-                final int requirements = wrapper.passthrough(Type.VAR_INT);
-                for (int array = 0; array < requirements; array++) {
-                    wrapper.passthrough(Type.STRING_ARRAY);
-                }
-
-                wrapper.passthrough(Type.BOOLEAN); // Send telemetry
-            }
-        });
-        registerClientbound(ClientboundPackets1_20_3.TAB_COMPLETE, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Transaction id
-            wrapper.passthrough(Type.VAR_INT); // Start
-            wrapper.passthrough(Type.VAR_INT); // Length
-
-            final int suggestions = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < suggestions; i++) {
-                wrapper.passthrough(Type.STRING); // Suggestion
-                convertOptionalComponent(wrapper); // Tooltip
-            }
-        });
-        registerClientbound(ClientboundPackets1_20_3.MAP_DATA, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Map id
-            wrapper.passthrough(Type.BYTE); // Scale
-            wrapper.passthrough(Type.BOOLEAN); // Locked
-            if (wrapper.passthrough(Type.BOOLEAN)) {
-                final int icons = wrapper.passthrough(Type.VAR_INT);
-                for (int i = 0; i < icons; i++) {
-                    wrapper.passthrough(Type.VAR_INT); // Type
-                    wrapper.passthrough(Type.BYTE); // X
-                    wrapper.passthrough(Type.BYTE); // Y
-                    wrapper.passthrough(Type.BYTE); // Rotation
-                    convertOptionalComponent(wrapper); // Display name
-                }
-            }
-        });
-        registerClientbound(ClientboundPackets1_20_3.BOSSBAR, wrapper -> {
-            wrapper.passthrough(Type.UUID); // Id
-
-            final int action = wrapper.passthrough(Type.VAR_INT);
-            if (action == 0 || action == 3) {
-                convertComponent(wrapper);
-            }
-        });
-        registerClientbound(ClientboundPackets1_20_3.PLAYER_CHAT, wrapper -> {
-            wrapper.passthrough(Type.UUID); // Sender
-            wrapper.passthrough(Type.VAR_INT); // Index
-            wrapper.passthrough(Type.OPTIONAL_SIGNATURE_BYTES); // Signature
-            wrapper.passthrough(Type.STRING); // Plain content
-            wrapper.passthrough(Type.LONG); // Timestamp
-            wrapper.passthrough(Type.LONG); // Salt
-
-            final int lastSeen = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < lastSeen; i++) {
-                final int index = wrapper.passthrough(Type.VAR_INT);
-                if (index == 0) {
-                    wrapper.passthrough(Type.SIGNATURE_BYTES);
-                }
-            }
-
-            convertOptionalComponent(wrapper); // Unsigned content
-
-            final int filterMaskType = wrapper.passthrough(Type.VAR_INT);
-            if (filterMaskType == 2) {
-                wrapper.passthrough(Type.LONG_ARRAY_PRIMITIVE); // Mask
-            }
-
-            wrapper.passthrough(Type.VAR_INT); // Chat type
-            convertComponent(wrapper); // Sender
-            convertOptionalComponent(wrapper); // Target
-        });
-        registerClientbound(ClientboundPackets1_20_3.TEAMS, wrapper -> {
-            wrapper.passthrough(Type.STRING); // Team Name
-            final byte action = wrapper.passthrough(Type.BYTE); // Mode
-            if (action == 0 || action == 2) {
-                convertComponent(wrapper); // Display Name
-                wrapper.passthrough(Type.BYTE); // Flags
-                wrapper.passthrough(Type.STRING); // Name Tag Visibility
-                wrapper.passthrough(Type.STRING); // Collision rule
-                wrapper.passthrough(Type.VAR_INT); // Color
-                convertComponent(wrapper); // Prefix
-                convertComponent(wrapper); // Suffix
-            }
-        });
-
-        registerClientbound(ClientboundConfigurationPackets1_20_3.DISCONNECT, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.DISCONNECT, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.RESOURCE_PACK_PUSH, ClientboundPackets1_20_2.RESOURCE_PACK, resourcePackHandler());
-        registerClientbound(ClientboundPackets1_20_3.SERVER_DATA, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.ACTIONBAR, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.TITLE_TEXT, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.TITLE_SUBTITLE, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.DISGUISED_CHAT, wrapper -> {
-            convertComponent(wrapper);
-            wrapper.passthrough(Type.VAR_INT); // Chat type
-            convertComponent(wrapper); // Name
-            convertOptionalComponent(wrapper); // Target name
-        });
-        registerClientbound(ClientboundPackets1_20_3.SYSTEM_CHAT, this::convertComponent);
-        registerClientbound(ClientboundPackets1_20_3.OPEN_WINDOW, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Container id
-
-            final int containerTypeId = wrapper.read(Type.VAR_INT);
-            final int mappedContainerTypeId = MAPPINGS.getMenuMappings().getNewId(containerTypeId);
-            if (mappedContainerTypeId == -1) {
-                wrapper.cancel();
-                return;
-            }
-
-            wrapper.write(Type.VAR_INT, mappedContainerTypeId);
-
-            convertComponent(wrapper);
-        });
-        registerClientbound(ClientboundPackets1_20_3.TAB_LIST, wrapper -> {
-            convertComponent(wrapper);
-            convertComponent(wrapper);
-        });
-
-        registerClientbound(ClientboundPackets1_20_3.COMBAT_KILL, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // Duration
-                handler(wrapper -> convertComponent(wrapper));
-            }
-        });
-        registerClientbound(ClientboundPackets1_20_3.PLAYER_INFO_UPDATE, wrapper -> {
-            final BitSet actions = wrapper.passthrough(Type.PROFILE_ACTIONS_ENUM);
-            final int entries = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < entries; i++) {
-                wrapper.passthrough(Type.UUID);
-                if (actions.get(0)) {
-                    wrapper.passthrough(Type.STRING); // Player Name
-
-                    final int properties = wrapper.passthrough(Type.VAR_INT);
-                    for (int j = 0; j < properties; j++) {
-                        wrapper.passthrough(Type.STRING); // Name
-                        wrapper.passthrough(Type.STRING); // Value
-                        wrapper.passthrough(Type.OPTIONAL_STRING); // Signature
-                    }
-                }
-                if (actions.get(1) && wrapper.passthrough(Type.BOOLEAN)) {
-                    wrapper.passthrough(Type.UUID); // Session UUID
-                    wrapper.passthrough(Type.PROFILE_KEY);
-                }
-                if (actions.get(2)) {
-                    wrapper.passthrough(Type.VAR_INT); // Gamemode
-                }
-                if (actions.get(3)) {
-                    wrapper.passthrough(Type.BOOLEAN); // Listed
-                }
-                if (actions.get(4)) {
-                    wrapper.passthrough(Type.VAR_INT); // Latency
-                }
-                if (actions.get(5)) {
-                    convertOptionalComponent(wrapper); // Display name
-                }
-            }
-        });
-        registerClientbound(ClientboundPackets1_20_3.SPAWN_POSITION, wrapper -> {
-            final Position position = wrapper.passthrough(Type.POSITION1_14);
-            final float angle = wrapper.passthrough(Type.FLOAT);
-
-            wrapper.user().get(SpawnPositionStorage.class).setSpawnPosition(Pair.of(position, angle));
-        });
-        registerClientbound(ClientboundPackets1_20_3.GAME_EVENT, wrapper -> {
-            final short reason = wrapper.passthrough(Type.UNSIGNED_BYTE);
-
-            if (reason == 13) { // Level chunks load start
-                wrapper.cancel();
-                final Pair<Position, Float> spawnPositionAndAngle = wrapper.user().get(SpawnPositionStorage.class).getSpawnPosition();
-
-                // To emulate the old behavior, we send a fake spawn pos packet containing the actual spawn pos which forces
-                // the 1.20.2 client to close the downloading terrain screen like the new game state does
-                final PacketWrapper spawnPosition = wrapper.create(ClientboundPackets1_20_2.SPAWN_POSITION);
-                spawnPosition.write(Type.POSITION1_14, spawnPositionAndAngle.first()); // position
-                spawnPosition.write(Type.FLOAT, spawnPositionAndAngle.second()); // angle
-                spawnPosition.send(Protocol1_20_2To1_20_3.class, true);
-            }
-        });
-
-        cancelClientbound(ClientboundPackets1_20_3.RESOURCE_PACK_POP);
-        registerServerbound(ServerboundPackets1_20_2.RESOURCE_PACK_STATUS, resourcePackStatusHandler());
-
-        cancelClientbound(ClientboundConfigurationPackets1_20_3.RESOURCE_PACK_POP);
-        registerServerbound(ServerboundConfigurationPackets1_20_2.RESOURCE_PACK, resourcePackStatusHandler());
-        registerClientbound(ClientboundConfigurationPackets1_20_3.RESOURCE_PACK_PUSH, ClientboundConfigurationPackets1_20_2.RESOURCE_PACK, resourcePackHandler());
-        registerClientbound(ClientboundConfigurationPackets1_20_3.UPDATE_TAGS, tagRewriter.getGenericHandler());
-    }
-
-    private PacketHandler resourcePackStatusHandler() {
-        return wrapper -> {
-            final ResourcepackIDStorage storage = wrapper.user().get(ResourcepackIDStorage.class);
-            wrapper.write(Type.UUID, storage != null ? storage.uuid() : UUID.randomUUID());
-        };
-    }
-
-    private PacketHandler resourcePackHandler() {
-        return wrapper -> {
-            final UUID uuid = wrapper.read(Type.UUID);
-            wrapper.user().put(new ResourcepackIDStorage(uuid));
-
-            wrapper.passthrough(Type.STRING); // Url
-            wrapper.passthrough(Type.STRING); // Hash
-            wrapper.passthrough(Type.BOOLEAN); // Required
-            convertOptionalComponent(wrapper);
-        };
-    }
-
-    private void convertComponent(final PacketWrapper wrapper) throws Exception {
-        final Tag tag = wrapper.read(Type.TAG);
-        translatableRewriter.processTag(wrapper.user(), tag);
-        wrapper.write(Type.COMPONENT, ComponentUtil.tagToJson(tag));
-    }
-
-    private void convertOptionalComponent(final PacketWrapper wrapper) throws Exception {
-        final Tag tag = wrapper.read(Type.OPTIONAL_TAG);
-        translatableRewriter.processTag(wrapper.user(), tag);
-        wrapper.write(Type.OPTIONAL_COMPONENT, ComponentUtil.tagToJson(tag));
-    }
-
-    @Override
-    public void init(final UserConnection connection) {
-        connection.put(new SpawnPositionStorage());
-        addEntityTracker(connection, new EntityTrackerBase(connection, EntityTypes1_20_3.PLAYER));
-    }
-
-    @Override
-    public BackwardsMappings getMappingData() {
-        return MAPPINGS;
-    }
-
-    @Override
-    public BlockItemPacketRewriter1_20_3 getItemRewriter() {
-        return itemRewriter;
-    }
-
-    @Override
-    public EntityPacketRewriter1_20_3 getEntityRewriter() {
-        return entityRewriter;
-    }
-
-    @Override
-    public TranslatableRewriter<ClientboundPacket1_20_3> getTranslatableRewriter() {
-        return translatableRewriter;
-    }
-
-    @Override
-    public TagRewriter<ClientboundPacket1_20_3> getTagRewriter() {
-        return tagRewriter;
-    }
-
-    @Override
-    protected PacketTypesProvider<ClientboundPacket1_20_3, ClientboundPacket1_20_2, ServerboundPacket1_20_3, ServerboundPacket1_20_2> createPacketTypesProvider() {
-        return new SimplePacketTypesProvider<>(
-                packetTypeMap(unmappedClientboundPacketType, ClientboundPackets1_20_3.class, ClientboundConfigurationPackets1_20_3.class),
-                packetTypeMap(mappedClientboundPacketType, ClientboundPackets1_20_2.class, ClientboundConfigurationPackets1_20_2.class),
-                packetTypeMap(mappedServerboundPacketType, ServerboundPackets1_20_3.class, ServerboundConfigurationPackets1_20_2.class),
-                packetTypeMap(unmappedServerboundPacketType, ServerboundPackets1_20_2.class, ServerboundConfigurationPackets1_20_2.class)
-        );
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_2to1_20_3/rewriter/BlockItemPacketRewriter1_20_3.java

@@ -1,160 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.rewriter;
-
-import com.viaversion.viabackwards.ViaBackwards;
-import com.viaversion.viabackwards.api.rewriters.BackwardsItemRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_20_2to1_20_3.Protocol1_20_2To1_20_3;
-import com.viaversion.viaversion.api.data.ParticleMappings;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_20_2;
-import com.viaversion.viaversion.api.type.types.version.Types1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPacket1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ClientboundPacket1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ClientboundPackets1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.rewriter.RecipeRewriter1_20_3;
-import com.viaversion.viaversion.rewriter.BlockRewriter;
-
-public final class BlockItemPacketRewriter1_20_3 extends BackwardsItemRewriter<ClientboundPacket1_20_3, ServerboundPacket1_20_2, Protocol1_20_2To1_20_3> {
-
-    public BlockItemPacketRewriter1_20_3(final Protocol1_20_2To1_20_3 protocol) {
-        super(protocol, Type.ITEM1_20_2, Type.ITEM1_20_2_ARRAY);
-    }
-
-    @Override
-    public void registerPackets() {
-        final BlockRewriter<ClientboundPacket1_20_3> blockRewriter = BlockRewriter.for1_20_2(protocol);
-        blockRewriter.registerBlockAction(ClientboundPackets1_20_3.BLOCK_ACTION);
-        blockRewriter.registerBlockChange(ClientboundPackets1_20_3.BLOCK_CHANGE);
-        blockRewriter.registerVarLongMultiBlockChange1_20(ClientboundPackets1_20_3.MULTI_BLOCK_CHANGE);
-        blockRewriter.registerEffect(ClientboundPackets1_20_3.EFFECT, 1010, 2001);
-        blockRewriter.registerChunkData1_19(ClientboundPackets1_20_3.CHUNK_DATA, ChunkType1_20_2::new);
-        blockRewriter.registerBlockEntityData(ClientboundPackets1_20_3.BLOCK_ENTITY_DATA);
-
-        registerSetCooldown(ClientboundPackets1_20_3.COOLDOWN);
-        registerWindowItems1_17_1(ClientboundPackets1_20_3.WINDOW_ITEMS);
-        registerSetSlot1_17_1(ClientboundPackets1_20_3.SET_SLOT);
-        registerEntityEquipmentArray(ClientboundPackets1_20_3.ENTITY_EQUIPMENT);
-        registerClickWindow1_17_1(ServerboundPackets1_20_2.CLICK_WINDOW);
-        registerTradeList1_19(ClientboundPackets1_20_3.TRADE_LIST);
-        registerCreativeInvAction(ServerboundPackets1_20_2.CREATIVE_INVENTORY_ACTION);
-        registerWindowPropertyEnchantmentHandler(ClientboundPackets1_20_3.WINDOW_PROPERTY);
-
-        protocol.registerClientbound(ClientboundPackets1_20_3.SPAWN_PARTICLE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Particle ID
-                map(Type.BOOLEAN); // 1 - Long Distance
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.FLOAT); // 5 - Offset X
-                map(Type.FLOAT); // 6 - Offset Y
-                map(Type.FLOAT); // 7 - Offset Z
-                map(Type.FLOAT); // 8 - Particle Data
-                map(Type.INT); // 9 - Particle Count
-                handler(wrapper -> {
-                    final int id = wrapper.get(Type.VAR_INT, 0);
-                    final ParticleMappings particleMappings = protocol.getMappingData().getParticleMappings();
-                    if (id == particleMappings.id("vibration")) {
-                        final int positionSourceType = wrapper.read(Type.VAR_INT);
-                        if (positionSourceType == 0) {
-                            wrapper.write(Type.STRING, "minecraft:block");
-                        } else if (positionSourceType == 1) {
-                            wrapper.write(Type.STRING, "minecraft:entity");
-                        } else {
-                            ViaBackwards.getPlatform().getLogger().warning("Unknown position source type: " + positionSourceType);
-                            wrapper.cancel();
-                        }
-                    }
-                });
-                handler(getSpawnParticleHandler(Type.VAR_INT));
-            }
-        });
-
-        new RecipeRewriter1_20_3<ClientboundPacket1_20_3>(protocol) {
-            @Override
-            public void handleCraftingShaped(final PacketWrapper wrapper) throws Exception {
-                // Move width and height up
-                final String group = wrapper.read(Type.STRING);
-                final int craftingBookCategory = wrapper.read(Type.VAR_INT);
-
-                final int width = wrapper.passthrough(Type.VAR_INT);
-                final int height = wrapper.passthrough(Type.VAR_INT);
-
-                wrapper.write(Type.STRING, group);
-                wrapper.write(Type.VAR_INT, craftingBookCategory);
-
-                final int ingredients = height * width;
-                for (int i = 0; i < ingredients; i++) {
-                    handleIngredient(wrapper);
-                }
-                rewrite(wrapper.user(), wrapper.passthrough(itemType())); // Result
-                wrapper.passthrough(Type.BOOLEAN); // Show notification
-            }
-        }.register(ClientboundPackets1_20_3.DECLARE_RECIPES);
-
-        protocol.registerClientbound(ClientboundPackets1_20_3.EXPLOSION, wrapper -> {
-            wrapper.passthrough(Type.DOUBLE); // X
-            wrapper.passthrough(Type.DOUBLE); // Y
-            wrapper.passthrough(Type.DOUBLE); // Z
-            wrapper.passthrough(Type.FLOAT); // Power
-
-            final int blocks = wrapper.read(Type.VAR_INT);
-            final byte[][] toBlow = new byte[blocks][3];
-            for (int i = 0; i < blocks; i++) {
-                toBlow[i] = new byte[]{
-                    wrapper.read(Type.BYTE), // Relative X
-                    wrapper.read(Type.BYTE), // Relative Y
-                    wrapper.read(Type.BYTE) // Relative Z
-                };
-            }
-
-            final float knockbackX = wrapper.read(Type.FLOAT); // Knockback X
-            final float knockbackY = wrapper.read(Type.FLOAT); // Knockback Y
-            final float knockbackZ = wrapper.read(Type.FLOAT); // Knockback Z
-
-            final int blockInteraction = wrapper.read(Type.VAR_INT); // Block interaction type
-            // 0 = keep, 1 = destroy, 2 = destroy_with_decay, 3 = trigger_block
-            if (blockInteraction == 1 || blockInteraction == 2) {
-                wrapper.write(Type.VAR_INT, blocks);
-                for (final byte[] relativeXYZ : toBlow) {
-                    wrapper.write(Type.BYTE, relativeXYZ[0]);
-                    wrapper.write(Type.BYTE, relativeXYZ[1]);
-                    wrapper.write(Type.BYTE, relativeXYZ[2]);
-                }
-            } else {
-                // Explosion doesn't destroy blocks
-                wrapper.write(Type.VAR_INT, 0);
-            }
-
-            wrapper.write(Type.FLOAT, knockbackX);
-            wrapper.write(Type.FLOAT, knockbackY);
-            wrapper.write(Type.FLOAT, knockbackZ);
-
-            // TODO Probably needs handling
-            wrapper.read(Types1_20_3.PARTICLE); // Small explosion particle
-            wrapper.read(Types1_20_3.PARTICLE); // Large explosion particle
-            wrapper.read(Type.STRING); // Explosion sound
-            wrapper.read(Type.OPTIONAL_FLOAT); // Sound range
-        });
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20_3to1_20_5/rewriter/BlockItemPacketRewriter1_20_5.java

@@ -1,233 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_20_3to1_20_5.rewriter;
-
-import com.viaversion.viabackwards.api.rewriters.BackwardsStructuredItemRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_20_3to1_20_5.Protocol1_20_3To1_20_5;
-import com.viaversion.viaversion.api.Via;
-import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.api.minecraft.Particle;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_20_2;
-import com.viaversion.viaversion.api.type.types.version.Types1_20_3;
-import com.viaversion.viaversion.api.type.types.version.Types1_20_5;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ServerboundPacket1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.packet.ServerboundPackets1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_3to1_20_2.rewriter.RecipeRewriter1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_5to1_20_3.Protocol1_20_5To1_20_3;
-import com.viaversion.viaversion.protocols.protocol1_20_5to1_20_3.packet.ClientboundPacket1_20_5;
-import com.viaversion.viaversion.protocols.protocol1_20_5to1_20_3.packet.ClientboundPackets1_20_5;
-import com.viaversion.viaversion.protocols.protocol1_20_5to1_20_3.rewriter.StructuredDataConverter;
-import com.viaversion.viaversion.rewriter.BlockRewriter;
-import com.viaversion.viaversion.util.Key;
-import org.checkerframework.checker.nullness.qual.Nullable;
-
-public final class BlockItemPacketRewriter1_20_5 extends BackwardsStructuredItemRewriter<ClientboundPacket1_20_5, ServerboundPacket1_20_3, Protocol1_20_3To1_20_5> {
-
-    private static final StructuredDataConverter DATA_CONVERTER = new StructuredDataConverter(true);
-    private final Protocol1_20_5To1_20_3 vvProtocol = Via.getManager().getProtocolManager().getProtocol(Protocol1_20_5To1_20_3.class);
-
-    public BlockItemPacketRewriter1_20_5(final Protocol1_20_3To1_20_5 protocol) {
-        super(protocol, Types1_20_5.ITEM, Types1_20_5.ITEM_ARRAY, Type.ITEM1_20_2, Type.ITEM1_20_2_ARRAY);
-        enchantmentRewriter.setRewriteIds(false); // Let VV handle it
-    }
-
-    @Override
-    public void registerPackets() {
-        final BlockRewriter<ClientboundPacket1_20_5> blockRewriter = BlockRewriter.for1_20_2(protocol);
-        blockRewriter.registerBlockAction(ClientboundPackets1_20_5.BLOCK_ACTION);
-        blockRewriter.registerBlockChange(ClientboundPackets1_20_5.BLOCK_CHANGE);
-        blockRewriter.registerVarLongMultiBlockChange1_20(ClientboundPackets1_20_5.MULTI_BLOCK_CHANGE);
-        blockRewriter.registerEffect(ClientboundPackets1_20_5.EFFECT, 1010, 2001);
-        blockRewriter.registerChunkData1_19(ClientboundPackets1_20_5.CHUNK_DATA, ChunkType1_20_2::new);
-        blockRewriter.registerBlockEntityData(ClientboundPackets1_20_5.BLOCK_ENTITY_DATA);
-
-        registerSetCooldown(ClientboundPackets1_20_5.COOLDOWN);
-        registerWindowItems1_17_1(ClientboundPackets1_20_5.WINDOW_ITEMS);
-        registerSetSlot1_17_1(ClientboundPackets1_20_5.SET_SLOT);
-        registerAdvancements1_20_3(ClientboundPackets1_20_5.ADVANCEMENTS);
-        registerClickWindow1_17_1(ServerboundPackets1_20_3.CLICK_WINDOW);
-        registerWindowPropertyEnchantmentHandler(ClientboundPackets1_20_5.WINDOW_PROPERTY);
-        registerCreativeInvAction(ServerboundPackets1_20_3.CREATIVE_INVENTORY_ACTION);
-        protocol.registerServerbound(ServerboundPackets1_20_3.CLICK_WINDOW_BUTTON, wrapper -> {
-            final int containerId = wrapper.read(Type.BYTE) & 0xFF;
-            final int buttonId = wrapper.read(Type.BYTE) & 0xFF;
-            wrapper.write(Type.VAR_INT, containerId);
-            wrapper.write(Type.VAR_INT, buttonId);
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_5.SPAWN_PARTICLE, wrapper -> {
-            wrapper.write(Type.VAR_INT, 0); // Write dummy value, set later
-
-            wrapper.passthrough(Type.BOOLEAN); // Long Distance
-            wrapper.passthrough(Type.DOUBLE); // X
-            wrapper.passthrough(Type.DOUBLE); // Y
-            wrapper.passthrough(Type.DOUBLE); // Z
-            wrapper.passthrough(Type.FLOAT); // Offset X
-            wrapper.passthrough(Type.FLOAT); // Offset Y
-            wrapper.passthrough(Type.FLOAT); // Offset Z
-            final float data = wrapper.passthrough(Type.FLOAT);
-            wrapper.passthrough(Type.INT); // Particle Count
-
-            // Move it to the beginning, move out arguments here
-            final Particle particle = wrapper.read(Types1_20_5.PARTICLE);
-            rewriteParticle(wrapper.user(), particle);
-            if (particle.id() == protocol.getMappingData().getParticleMappings().mappedId("entity_effect")) {
-                // Remove color argument
-                final int color = particle.<Integer>removeArgument(0).getValue();
-                if (data == 0) {
-                    wrapper.set(Type.FLOAT, 3, (float) color);
-                }
-            } else if (particle.id() == protocol.getMappingData().getParticleMappings().mappedId("dust_color_transition")) {
-                // fromColor, toColor, scale -> fromColor, scale, toColor
-                particle.add(3, Type.FLOAT, particle.<Float>removeArgument(6).getValue());
-            }
-
-            wrapper.set(Type.VAR_INT, 0, particle.id());
-            for (final Particle.ParticleData<?> argument : particle.getArguments()) {
-                argument.write(wrapper);
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_5.EXPLOSION, wrapper -> {
-            wrapper.passthrough(Type.DOUBLE); // X
-            wrapper.passthrough(Type.DOUBLE); // Y
-            wrapper.passthrough(Type.DOUBLE); // Z
-            wrapper.passthrough(Type.FLOAT); // Power
-            final int blocks = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < blocks; i++) {
-                wrapper.passthrough(Type.BYTE); // Relative X
-                wrapper.passthrough(Type.BYTE); // Relative Y
-                wrapper.passthrough(Type.BYTE); // Relative Z
-            }
-            wrapper.passthrough(Type.FLOAT); // Knockback X
-            wrapper.passthrough(Type.FLOAT); // Knockback Y
-            wrapper.passthrough(Type.FLOAT); // Knockback Z
-            wrapper.passthrough(Type.VAR_INT); // Block interaction type
-
-            protocol.getEntityRewriter().rewriteParticle(wrapper, Types1_20_5.PARTICLE, Types1_20_3.PARTICLE); // Small explosion particle
-            protocol.getEntityRewriter().rewriteParticle(wrapper, Types1_20_5.PARTICLE, Types1_20_3.PARTICLE); // Large explosion particle
-
-            int soundId = wrapper.read(Type.VAR_INT) - 1;
-            if (soundId == -1) {
-                // Already followed by the resource location
-                return;
-            }
-
-            soundId = protocol.getMappingData().getSoundMappings().getNewId(soundId);
-            final String soundKey = Protocol1_20_5To1_20_3.MAPPINGS.soundName(soundId);
-            wrapper.write(Type.STRING, soundKey != null ? soundKey : "minecraft:entity.generic.explode");
-            wrapper.write(Type.OPTIONAL_FLOAT, null); // Fixed range
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_5.TRADE_LIST, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Container id
-            final int size = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < size; i++) {
-                final Item input = handleItemToClient(wrapper.user(), wrapper.read(Types1_20_5.ITEM_COST));
-                cleanInput(input);
-                wrapper.write(Type.ITEM1_20_2, input);
-
-                final Item result = handleItemToClient(wrapper.user(), wrapper.read(Types1_20_5.ITEM));
-                wrapper.write(Type.ITEM1_20_2, result);
-
-                final Item secondInput = handleItemToClient(wrapper.user(), wrapper.read(Types1_20_5.OPTIONAL_ITEM_COST));
-                cleanInput(secondInput);
-                wrapper.write(Type.ITEM1_20_2, secondInput);
-
-                wrapper.passthrough(Type.BOOLEAN); // Out of stock
-                wrapper.passthrough(Type.INT); // Number of trade uses
-                wrapper.passthrough(Type.INT); // Maximum number of trade uses
-                wrapper.passthrough(Type.INT); // XP
-                wrapper.passthrough(Type.INT); // Special price
-                wrapper.passthrough(Type.FLOAT); // Price multiplier
-                wrapper.passthrough(Type.INT); // Demand
-            }
-        });
-
-        final RecipeRewriter1_20_3<ClientboundPacket1_20_5> recipeRewriter = new RecipeRewriter1_20_3<>(protocol);
-        protocol.registerClientbound(ClientboundPackets1_20_5.DECLARE_RECIPES, wrapper -> {
-            final int size = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < size; i++) {
-                // Change order and write the type as an int
-                final String recipeIdentifier = wrapper.read(Type.STRING);
-                final int serializerTypeId = wrapper.read(Type.VAR_INT);
-                final String serializerType = protocol.getMappingData().getRecipeSerializerMappings().mappedIdentifier(serializerTypeId);
-                wrapper.write(Type.STRING, serializerType);
-                wrapper.write(Type.STRING, recipeIdentifier);
-                recipeRewriter.handleRecipeType(wrapper, Key.stripMinecraftNamespace(serializerType));
-            }
-        });
-    }
-
-    private void cleanInput(@Nullable final Item item) {
-        // Try to maybe hopefully get the tag matching to what the client will try to input by removing default data
-        if (item == null || item.tag() == null) {
-            return;
-        }
-
-        final CompoundTag tag = item.tag();
-        tag.remove("VV|DataComponents");
-
-        final CompoundTag display = tag.getCompoundTag("display");
-        if (display != null) {
-            removeEmptyList(display, "Lore");
-            if (display.isEmpty()) {
-                tag.remove("display");
-            }
-        }
-
-        removeEmptyList(tag, "Enchantments");
-        removeEmptyList(tag, "AttributeModifiers");
-
-        if (tag.getInt("RepairCost", -1) == 0) {
-            tag.remove("RepairCost");
-        }
-
-        if (tag.isEmpty()) {
-            item.setTag(null);
-        }
-    }
-
-    private void removeEmptyList(final CompoundTag tag, final String key) {
-        final ListTag<?> list = tag.getListTag(key);
-        if (list != null && list.isEmpty()) {
-            tag.remove(key);
-        }
-    }
-
-    @Override
-    public @Nullable Item handleItemToClient(final UserConnection connection, @Nullable final Item item) {
-        if (item == null) return null;
-
-        super.handleItemToClient(connection, item);
-        return vvProtocol.getItemRewriter().toOldItem(item, DATA_CONVERTER);
-    }
-
-    @Override
-    public @Nullable Item handleItemToServer(final UserConnection connection, @Nullable final Item item) {
-        if (item == null) return null;
-
-        // Convert to structured item first
-        final Item structuredItem = vvProtocol.getItemRewriter().toStructuredItem(connection, item);
-        return super.handleItemToServer(connection, structuredItem);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20to1_20_2/rewriter/BlockItemPacketRewriter1_20_2.java

@@ -1,415 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.rewriter;
-
-import com.viaversion.viabackwards.api.rewriters.BackwardsItemRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.Protocol1_20To1_20_2;
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.provider.AdvancementCriteriaProvider;
-import com.viaversion.viaversion.api.Via;
-import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.api.data.ParticleMappings;
-import com.viaversion.viaversion.api.data.entity.EntityTracker;
-import com.viaversion.viaversion.api.minecraft.blockentity.BlockEntity;
-import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
-import com.viaversion.viaversion.api.minecraft.chunks.ChunkSection;
-import com.viaversion.viaversion.api.minecraft.chunks.DataPalette;
-import com.viaversion.viaversion.api.minecraft.chunks.PaletteType;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.minecraft.metadata.ChunkPosition;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_18;
-import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_20_2;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
-import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.ServerboundPackets1_19_4;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ServerboundPackets1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.rewriter.RecipeRewriter1_20_2;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.util.PotionEffects1_20_2;
-import com.viaversion.viaversion.rewriter.BlockRewriter;
-import com.viaversion.viaversion.util.Key;
-import com.viaversion.viaversion.util.MathUtil;
-import org.checkerframework.checker.nullness.qual.Nullable;
-
-public final class BlockItemPacketRewriter1_20_2 extends BackwardsItemRewriter<ClientboundPackets1_20_2, ServerboundPackets1_19_4, Protocol1_20To1_20_2> {
-
-    public BlockItemPacketRewriter1_20_2(final Protocol1_20To1_20_2 protocol) {
-        super(protocol, Type.ITEM1_20_2, Type.ITEM1_20_2_ARRAY);
-    }
-
-    @Override
-    public void registerPackets() {
-        final BlockRewriter<ClientboundPackets1_20_2> blockRewriter = BlockRewriter.for1_14(protocol);
-        blockRewriter.registerBlockAction(ClientboundPackets1_20_2.BLOCK_ACTION);
-        blockRewriter.registerBlockChange(ClientboundPackets1_20_2.BLOCK_CHANGE);
-        blockRewriter.registerVarLongMultiBlockChange1_20(ClientboundPackets1_20_2.MULTI_BLOCK_CHANGE);
-        blockRewriter.registerEffect(ClientboundPackets1_20_2.EFFECT, 1010, 2001);
-
-        protocol.cancelClientbound(ClientboundPackets1_20_2.CHUNK_BATCH_START);
-        protocol.registerClientbound(ClientboundPackets1_20_2.CHUNK_BATCH_FINISHED, null, wrapper -> {
-            wrapper.cancel();
-
-            final PacketWrapper receivedPacket = wrapper.create(ServerboundPackets1_20_2.CHUNK_BATCH_RECEIVED);
-            receivedPacket.write(Type.FLOAT, 500F); // Requested next batch size... arbitrary value here
-            receivedPacket.sendToServer(Protocol1_20To1_20_2.class);
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.UNLOAD_CHUNK, wrapper -> {
-            final ChunkPosition chunkPosition = wrapper.read(Type.CHUNK_POSITION);
-            wrapper.write(Type.INT, chunkPosition.chunkX());
-            wrapper.write(Type.INT, chunkPosition.chunkZ());
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.MAP_DATA, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Map id
-            wrapper.passthrough(Type.BYTE); // Scale
-            wrapper.passthrough(Type.BOOLEAN); // Locked
-            if (wrapper.passthrough(Type.BOOLEAN)) {
-                final int icons = wrapper.passthrough(Type.VAR_INT);
-                for (int i = 0; i < icons; i++) {
-                    // Map new marker types to red marker
-                    final int markerType = wrapper.read(Type.VAR_INT);
-                    wrapper.write(Type.VAR_INT, markerType < 27 ? markerType : 2);
-
-                    wrapper.passthrough(Type.BYTE); // X
-                    wrapper.passthrough(Type.BYTE); // Y
-                    wrapper.passthrough(Type.BYTE); // Rotation
-                    wrapper.passthrough(Type.OPTIONAL_COMPONENT); // Display name
-                }
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.NBT_QUERY, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Transaction id
-            wrapper.write(Type.NAMED_COMPOUND_TAG, wrapper.read(Type.COMPOUND_TAG));
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.BLOCK_ENTITY_DATA, wrapper -> {
-            wrapper.passthrough(Type.POSITION1_14); // Position
-            wrapper.passthrough(Type.VAR_INT); // Type
-            wrapper.write(Type.NAMED_COMPOUND_TAG, handleBlockEntity(wrapper.read(Type.COMPOUND_TAG)));
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.CHUNK_DATA, wrapper -> {
-            final EntityTracker tracker = protocol.getEntityRewriter().tracker(wrapper.user());
-            final Type<Chunk> chunkType = new ChunkType1_20_2(tracker.currentWorldSectionHeight(),
-                MathUtil.ceilLog2(protocol.getMappingData().getBlockStateMappings().size()),
-                MathUtil.ceilLog2(tracker.biomesSent()));
-            final Chunk chunk = wrapper.read(chunkType);
-
-            final Type<Chunk> newChunkType = new ChunkType1_18(tracker.currentWorldSectionHeight(),
-                MathUtil.ceilLog2(protocol.getMappingData().getBlockStateMappings().mappedSize()),
-                MathUtil.ceilLog2(tracker.biomesSent()));
-            wrapper.write(newChunkType, chunk);
-
-            for (final ChunkSection section : chunk.getSections()) {
-                final DataPalette blockPalette = section.palette(PaletteType.BLOCKS);
-                for (int i = 0; i < blockPalette.size(); i++) {
-                    final int id = blockPalette.idByIndex(i);
-                    blockPalette.setIdByIndex(i, protocol.getMappingData().getNewBlockStateId(id));
-                }
-            }
-
-            for (final BlockEntity blockEntity : chunk.blockEntities()) {
-                handleBlockEntity(blockEntity.tag());
-            }
-        });
-
-        protocol.registerServerbound(ServerboundPackets1_19_4.SET_BEACON_EFFECT, wrapper -> {
-            // Effects start at 1 before 1.20.2
-            if (wrapper.passthrough(Type.BOOLEAN)) { // Primary effect
-                wrapper.write(Type.VAR_INT, wrapper.read(Type.VAR_INT) - 1);
-            }
-            if (wrapper.passthrough(Type.BOOLEAN)) { // Secondary effect
-                wrapper.write(Type.VAR_INT, wrapper.read(Type.VAR_INT) - 1);
-            }
-        });
-
-        // Replace the NBT type everywhere
-        protocol.registerClientbound(ClientboundPackets1_20_2.WINDOW_ITEMS, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE); // Window id
-                map(Type.VAR_INT); // State id
-                handler(wrapper -> {
-                    final Item[] items = wrapper.read(Type.ITEM1_20_2_ARRAY);
-                    for (final Item item : items) {
-                        handleItemToClient(wrapper.user(), item);
-                    }
-
-                    wrapper.write(Type.ITEM1_13_2_ARRAY, items);
-                    wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2))); // Carried item
-                });
-            }
-        });
-        protocol.registerClientbound(ClientboundPackets1_20_2.SET_SLOT, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE); // Window id
-                map(Type.VAR_INT); // State id
-                map(Type.SHORT); // Slot id
-                handler(wrapper -> wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2))));
-            }
-        });
-        protocol.registerClientbound(ClientboundPackets1_20_2.ADVANCEMENTS, wrapper -> {
-            wrapper.passthrough(Type.BOOLEAN); // Reset/clear
-            final int size = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < size; i++) {
-                final String advancement = wrapper.passthrough(Type.STRING);
-                wrapper.passthrough(Type.OPTIONAL_STRING); // Parent
-
-                // Display data
-                if (wrapper.passthrough(Type.BOOLEAN)) {
-                    wrapper.passthrough(Type.COMPONENT); // Title
-                    wrapper.passthrough(Type.COMPONENT); // Description
-                    wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2))); // Icon
-                    wrapper.passthrough(Type.VAR_INT); // Frame type
-                    final int flags = wrapper.passthrough(Type.INT); // Flags
-                    if ((flags & 1) != 0) {
-                        wrapper.passthrough(Type.STRING); // Background texture
-                    }
-                    wrapper.passthrough(Type.FLOAT); // X
-                    wrapper.passthrough(Type.FLOAT); // Y
-                }
-
-                final AdvancementCriteriaProvider criteriaProvider = Via.getManager().getProviders().get(AdvancementCriteriaProvider.class);
-                wrapper.write(Type.STRING_ARRAY, criteriaProvider.getCriteria(advancement));
-
-                final int requirements = wrapper.passthrough(Type.VAR_INT);
-                for (int array = 0; array < requirements; array++) {
-                    wrapper.passthrough(Type.STRING_ARRAY);
-                }
-
-                wrapper.passthrough(Type.BOOLEAN); // Send telemetry
-            }
-        });
-        protocol.registerClientbound(ClientboundPackets1_20_2.ENTITY_EQUIPMENT, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                handler(wrapper -> {
-                    byte slot;
-                    do {
-                        slot = wrapper.passthrough(Type.BYTE);
-                        wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2)));
-                    } while ((slot & 0xFFFFFF80) != 0);
-                });
-            }
-        });
-        protocol.registerServerbound(ServerboundPackets1_19_4.CLICK_WINDOW, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.UNSIGNED_BYTE); // Window Id
-                map(Type.VAR_INT); // State id
-                map(Type.SHORT); // Slot
-                map(Type.BYTE); // Button
-                map(Type.VAR_INT); // Mode
-
-                handler(wrapper -> {
-                    // Affected items
-                    final int length = wrapper.passthrough(Type.VAR_INT);
-                    for (int i = 0; i < length; i++) {
-                        wrapper.passthrough(Type.SHORT); // Slot
-                        wrapper.write(Type.ITEM1_20_2, handleItemToServer(wrapper.user(), wrapper.read(Type.ITEM1_13_2)));
-                    }
-
-                    // Carried item
-                    wrapper.write(Type.ITEM1_20_2, handleItemToServer(wrapper.user(), wrapper.read(Type.ITEM1_13_2)));
-                });
-            }
-        });
-        protocol.registerClientbound(ClientboundPackets1_20_2.TRADE_LIST, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Container id
-            final int size = wrapper.passthrough(Type.VAR_INT);
-            for (int i = 0; i < size; i++) {
-                wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2))); // Input
-                wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2))); // Output
-                wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2))); // Second Item
-
-                wrapper.passthrough(Type.BOOLEAN); // Trade disabled
-                wrapper.passthrough(Type.INT); // Number of tools uses
-                wrapper.passthrough(Type.INT); // Maximum number of trade uses
-                wrapper.passthrough(Type.INT); // XP
-                wrapper.passthrough(Type.INT); // Special price
-                wrapper.passthrough(Type.FLOAT); // Price multiplier
-                wrapper.passthrough(Type.INT); // Demand
-            }
-        });
-        protocol.registerServerbound(ServerboundPackets1_19_4.CREATIVE_INVENTORY_ACTION, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.SHORT); // 0 - Slot
-                handler(wrapper -> wrapper.write(Type.ITEM1_20_2, handleItemToServer(wrapper.user(), wrapper.read(Type.ITEM1_13_2)))); // 1 - Clicked Item
-            }
-        });
-        protocol.registerClientbound(ClientboundPackets1_20_2.SPAWN_PARTICLE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Particle ID
-                map(Type.BOOLEAN); // 1 - Long Distance
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.FLOAT); // 5 - Offset X
-                map(Type.FLOAT); // 6 - Offset Y
-                map(Type.FLOAT); // 7 - Offset Z
-                map(Type.FLOAT); // 8 - Particle Data
-                map(Type.INT); // 9 - Particle Count
-                handler(wrapper -> {
-                    final int id = wrapper.get(Type.VAR_INT, 0);
-                    final ParticleMappings mappings = Protocol1_20To1_20_2.MAPPINGS.getParticleMappings();
-                    if (mappings.isBlockParticle(id)) {
-                        final int data = wrapper.read(Type.VAR_INT);
-                        wrapper.write(Type.VAR_INT, protocol.getMappingData().getNewBlockStateId(data));
-                    } else if (mappings.isItemParticle(id)) {
-                        wrapper.write(Type.ITEM1_13_2, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_20_2)));
-                    }
-                });
-            }
-        });
-
-        new RecipeRewriter1_20_2<ClientboundPackets1_20_2>(protocol) {
-            @Override
-            public void handleCraftingShapeless(final PacketWrapper wrapper) throws Exception {
-                wrapper.passthrough(Type.STRING); // Group
-                wrapper.passthrough(Type.VAR_INT); // Crafting book category
-                handleIngredients(wrapper);
-
-                final Item result = wrapper.read(itemType());
-                rewrite(wrapper.user(), result);
-                wrapper.write(Type.ITEM1_13_2, result);
-            }
-
-            @Override
-            public void handleSmelting(final PacketWrapper wrapper) throws Exception {
-                wrapper.passthrough(Type.STRING); // Group
-                wrapper.passthrough(Type.VAR_INT); // Crafting book category
-                handleIngredient(wrapper);
-
-                final Item result = wrapper.read(itemType());
-                rewrite(wrapper.user(), result);
-                wrapper.write(Type.ITEM1_13_2, result);
-
-                wrapper.passthrough(Type.FLOAT); // EXP
-                wrapper.passthrough(Type.VAR_INT); // Cooking time
-            }
-
-            @Override
-            public void handleCraftingShaped(final PacketWrapper wrapper) throws Exception {
-                final int ingredients = wrapper.passthrough(Type.VAR_INT) * wrapper.passthrough(Type.VAR_INT);
-                wrapper.passthrough(Type.STRING); // Group
-                wrapper.passthrough(Type.VAR_INT); // Crafting book category
-                for (int i = 0; i < ingredients; i++) {
-                    handleIngredient(wrapper);
-                }
-
-                final Item result = wrapper.read(itemType());
-                rewrite(wrapper.user(), result);
-                wrapper.write(Type.ITEM1_13_2, result);
-
-                wrapper.passthrough(Type.BOOLEAN); // Show notification
-            }
-
-            @Override
-            public void handleStonecutting(final PacketWrapper wrapper) throws Exception {
-                wrapper.passthrough(Type.STRING); // Group
-                handleIngredient(wrapper);
-
-                final Item result = wrapper.read(itemType());
-                rewrite(wrapper.user(), result);
-                wrapper.write(Type.ITEM1_13_2, result);
-            }
-
-            @Override
-            public void handleSmithing(final PacketWrapper wrapper) throws Exception {
-                handleIngredient(wrapper); // Base
-                handleIngredient(wrapper); // Addition
-
-                final Item result = wrapper.read(itemType());
-                rewrite(wrapper.user(), result);
-                wrapper.write(Type.ITEM1_13_2, result);
-            }
-
-            @Override
-            public void handleSmithingTransform(final PacketWrapper wrapper) throws Exception {
-                handleIngredient(wrapper); // Template
-                handleIngredient(wrapper); // Base
-                handleIngredient(wrapper); // Additions
-
-                final Item result = wrapper.read(itemType());
-                rewrite(wrapper.user(), result);
-                wrapper.write(Type.ITEM1_13_2, result);
-            }
-
-            @Override
-            protected void handleIngredient(final PacketWrapper wrapper) throws Exception {
-                final Item[] items = wrapper.read(itemArrayType());
-                wrapper.write(Type.ITEM1_13_2_ARRAY, items);
-                for (final Item item : items) {
-                    rewrite(wrapper.user(), item);
-                }
-            }
-        }.register(ClientboundPackets1_20_2.DECLARE_RECIPES);
-    }
-
-    @Override
-    public @Nullable Item handleItemToClient(UserConnection connection, @Nullable final Item item) {
-        if (item == null) {
-            return null;
-        }
-        if (item.tag() != null) {
-            com.viaversion.viaversion.protocols.protocol1_20_2to1_20.rewriter.BlockItemPacketRewriter1_20_2.to1_20_1Effects(item);
-        }
-
-        return super.handleItemToClient(connection, item);
-    }
-
-    @Override
-    public @Nullable Item handleItemToServer(UserConnection connection, @Nullable final Item item) {
-        if (item == null) {
-            return null;
-        }
-        if (item.tag() != null) {
-            com.viaversion.viaversion.protocols.protocol1_20_2to1_20.rewriter.BlockItemPacketRewriter1_20_2.to1_20_2Effects(item);
-        }
-
-        return super.handleItemToServer(connection, item);
-    }
-
-    private @Nullable CompoundTag handleBlockEntity(@Nullable final CompoundTag tag) {
-        if (tag == null) {
-            return null;
-        }
-
-        final Tag primaryEffect = tag.remove("primary_effect");
-        if (primaryEffect instanceof StringTag) {
-            final String effectKey = Key.stripMinecraftNamespace(((StringTag) primaryEffect).getValue());
-            tag.putInt("Primary", PotionEffects1_20_2.keyToId(effectKey) + 1); // Empty effect at 0
-        }
-
-        final Tag secondaryEffect = tag.remove("secondary_effect");
-        if (secondaryEffect instanceof StringTag) {
-            final String effectKey = Key.stripMinecraftNamespace(((StringTag) secondaryEffect).getValue());
-            tag.putInt("Secondary", PotionEffects1_20_2.keyToId(effectKey) + 1); // Empty effect at 0
-        }
-        return tag;
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_20to1_20_2/rewriter/EntityPacketRewriter1_20_2.java

@@ -1,216 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-package com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.rewriter;
-
-import com.viaversion.viabackwards.api.rewriters.EntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.Protocol1_20To1_20_2;
-import com.viaversion.viabackwards.protocol.protocol1_20to1_20_2.storage.ConfigurationPacketStorage;
-import com.viaversion.viaversion.api.minecraft.GlobalPosition;
-import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_19_4;
-import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_20;
-import com.viaversion.viaversion.api.type.types.version.Types1_20_2;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.ClientboundPackets1_19_4;
-import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundPackets1_20_2;
-
-public final class EntityPacketRewriter1_20_2 extends EntityRewriter<ClientboundPackets1_20_2, Protocol1_20To1_20_2> {
-
-    public EntityPacketRewriter1_20_2(final Protocol1_20To1_20_2 protocol) {
-        super(protocol, Types1_20.META_TYPES.optionalComponentType, Types1_20.META_TYPES.booleanType);
-    }
-
-    @Override
-    public void registerPackets() {
-        registerMetadataRewriter(ClientboundPackets1_20_2.ENTITY_METADATA, Types1_20_2.METADATA_LIST, Types1_20.METADATA_LIST);
-        registerRemoveEntities(ClientboundPackets1_20_2.REMOVE_ENTITIES);
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.SPAWN_ENTITY, new PacketHandlers() {
-            @Override
-            protected void register() {
-                handler(wrapper -> {
-                    final int entityId = wrapper.passthrough(Type.VAR_INT);
-
-                    wrapper.passthrough(Type.UUID); // UUID
-
-                    final int entityType = wrapper.read(Type.VAR_INT);
-                    tracker(wrapper.user()).addEntity(entityId, typeFromId(entityType));
-
-                    if (entityType != EntityTypes1_19_4.PLAYER.getId()) {
-                        wrapper.write(Type.VAR_INT, entityType);
-
-                        if (entityType == EntityTypes1_19_4.FALLING_BLOCK.getId()) {
-                            wrapper.passthrough(Type.DOUBLE); // X
-                            wrapper.passthrough(Type.DOUBLE); // Y
-                            wrapper.passthrough(Type.DOUBLE); // Z
-                            wrapper.passthrough(Type.BYTE); // Pitch
-                            wrapper.passthrough(Type.BYTE); // Yaw
-                            wrapper.passthrough(Type.BYTE); // Head yaw
-                            final int blockState = wrapper.read(Type.VAR_INT); // Data
-                            wrapper.write(Type.VAR_INT, protocol.getMappingData().getNewBlockStateId(blockState));
-                        }
-                        return;
-                    }
-
-                    // Map to spawn player packet
-                    wrapper.setPacketType(ClientboundPackets1_19_4.SPAWN_PLAYER);
-
-                    wrapper.passthrough(Type.DOUBLE); // X
-                    wrapper.passthrough(Type.DOUBLE); // Y
-                    wrapper.passthrough(Type.DOUBLE); // Z
-
-                    final byte pitch = wrapper.read(Type.BYTE);
-                    wrapper.passthrough(Type.BYTE); // Yaw
-                    wrapper.write(Type.BYTE, pitch);
-                    wrapper.read(Type.BYTE); // Head yaw
-                    wrapper.read(Type.VAR_INT); // Data
-
-                    final short velocityX = wrapper.read(Type.SHORT);
-                    final short velocityY = wrapper.read(Type.SHORT);
-                    final short velocityZ = wrapper.read(Type.SHORT);
-                    if (velocityX == 0 && velocityY == 0 && velocityZ == 0) {
-                        return;
-                    }
-
-                    // Follow up with velocity packet
-                    wrapper.send(Protocol1_20To1_20_2.class);
-                    wrapper.cancel();
-
-                    final PacketWrapper velocityPacket = wrapper.create(ClientboundPackets1_19_4.ENTITY_VELOCITY);
-                    velocityPacket.write(Type.VAR_INT, entityId);
-                    velocityPacket.write(Type.SHORT, velocityX);
-                    velocityPacket.write(Type.SHORT, velocityY);
-                    velocityPacket.write(Type.SHORT, velocityZ);
-                    velocityPacket.send(Protocol1_20To1_20_2.class);
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.JOIN_GAME, new PacketHandlers() {
-            @Override
-            public void register() {
-                handler(wrapper -> {
-                    final ConfigurationPacketStorage configurationPacketStorage = wrapper.user().remove(ConfigurationPacketStorage.class);
-                    wrapper.passthrough(Type.INT); // Entity id
-                    wrapper.passthrough(Type.BOOLEAN); // Hardcore
-
-                    final String[] worlds = wrapper.read(Type.STRING_ARRAY);
-                    final int maxPlayers = wrapper.read(Type.VAR_INT);
-                    final int viewDistance = wrapper.read(Type.VAR_INT);
-                    final int simulationDistance = wrapper.read(Type.VAR_INT);
-                    final boolean reducedDebugInfo = wrapper.read(Type.BOOLEAN);
-                    final boolean showRespawnScreen = wrapper.read(Type.BOOLEAN);
-
-                    wrapper.read(Type.BOOLEAN); // Limited crafting
-
-                    final String dimensionType = wrapper.read(Type.STRING);
-                    final String world = wrapper.read(Type.STRING);
-                    final long seed = wrapper.read(Type.LONG);
-
-                    wrapper.passthrough(Type.BYTE); // Gamemode
-                    wrapper.passthrough(Type.BYTE); // Previous gamemode
-
-                    wrapper.write(Type.STRING_ARRAY, worlds);
-                    wrapper.write(Type.NAMED_COMPOUND_TAG, configurationPacketStorage.registry());
-                    wrapper.write(Type.STRING, dimensionType);
-                    wrapper.write(Type.STRING, world);
-                    wrapper.write(Type.LONG, seed);
-                    wrapper.write(Type.VAR_INT, maxPlayers);
-                    wrapper.write(Type.VAR_INT, viewDistance);
-                    wrapper.write(Type.VAR_INT, simulationDistance);
-                    wrapper.write(Type.BOOLEAN, reducedDebugInfo);
-                    wrapper.write(Type.BOOLEAN, showRespawnScreen);
-
-                    worldDataTrackerHandlerByKey().handle(wrapper);
-
-                    wrapper.send(Protocol1_20To1_20_2.class);
-                    wrapper.cancel();
-
-                    if (configurationPacketStorage.enabledFeatures() != null) {
-                        final PacketWrapper featuresPacket = wrapper.create(ClientboundPackets1_19_4.UPDATE_ENABLED_FEATURES);
-                        featuresPacket.write(Type.STRING_ARRAY, configurationPacketStorage.enabledFeatures());
-                        featuresPacket.send(Protocol1_20To1_20_2.class);
-                    }
-
-                    configurationPacketStorage.sendQueuedPackets(wrapper.user());
-                });
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.RESPAWN, new PacketHandlers() {
-            @Override
-            public void register() {
-                handler(wrapper -> {
-                    wrapper.passthrough(Type.STRING); // Dimension type
-                    wrapper.passthrough(Type.STRING); // World
-                    wrapper.passthrough(Type.LONG); // Seed
-                    wrapper.write(Type.UNSIGNED_BYTE, wrapper.read(Type.BYTE).shortValue()); // Gamemode
-                    wrapper.passthrough(Type.BYTE); // Previous gamemode
-                    wrapper.passthrough(Type.BOOLEAN); // Debug
-                    wrapper.passthrough(Type.BOOLEAN); // Flat
-
-                    final GlobalPosition lastDeathPosition = wrapper.read(Type.OPTIONAL_GLOBAL_POSITION);
-                    final int portalCooldown = wrapper.read(Type.VAR_INT);
-
-                    wrapper.passthrough(Type.BYTE); // Data to keep
-
-                    wrapper.write(Type.OPTIONAL_GLOBAL_POSITION, lastDeathPosition);
-                    wrapper.write(Type.VAR_INT, portalCooldown);
-                });
-                handler(worldDataTrackerHandlerByKey()); // Tracks world height and name for chunk data and entity (un)tracking
-            }
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.ENTITY_EFFECT, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Entity id
-            wrapper.write(Type.VAR_INT, wrapper.read(Type.VAR_INT) + 1); // Effect id
-            wrapper.passthrough(Type.BYTE); // Amplifier
-            wrapper.passthrough(Type.VAR_INT); // Duration
-            wrapper.passthrough(Type.BYTE); // Flags
-
-            final CompoundTag factorData = wrapper.read(Type.OPTIONAL_COMPOUND_TAG);
-            wrapper.write(Type.OPTIONAL_NAMED_COMPOUND_TAG, factorData); // Factor data
-        });
-
-        protocol.registerClientbound(ClientboundPackets1_20_2.REMOVE_ENTITY_EFFECT, wrapper -> {
-            wrapper.passthrough(Type.VAR_INT); // Entity id
-            wrapper.write(Type.VAR_INT, wrapper.read(Type.VAR_INT) + 1); // Effect id
-        });
-    }
-
-    @Override
-    protected void registerRewrites() {
-        filter().handler((event, meta) -> meta.setMetaType(Types1_20.META_TYPES.byId(meta.metaType().typeId())));
-        registerMetaTypeHandler(Types1_20.META_TYPES.itemType, Types1_20.META_TYPES.blockStateType, Types1_20.META_TYPES.optionalBlockStateType, Types1_20.META_TYPES.particleType, null, null);
-
-        filter().type(EntityTypes1_19_4.DISPLAY).removeIndex(10);
-
-        filter().type(EntityTypes1_19_4.MINECART_ABSTRACT).index(11).handler((event, meta) -> {
-            final int blockState = meta.value();
-            meta.setValue(protocol.getMappingData().getNewBlockStateId(blockState));
-        });
-    }
-
-    @Override
-    public EntityType typeFromId(final int type) {
-        return EntityTypes1_19_4.getTypeFromId(type);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_9_4to1_10/packets/BlockItemPackets1_10.java

@@ -1,119 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.packets;
-
-import com.viaversion.viabackwards.api.rewriters.LegacyBlockItemRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.Protocol1_9_4To1_10;
-import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
-import com.viaversion.viaversion.api.minecraft.ClientWorld;
-import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
-import com.viaversion.viaversion.api.minecraft.item.Item;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
-
-public class BlockItemPackets1_10 extends LegacyBlockItemRewriter<ClientboundPackets1_9_3, ServerboundPackets1_9_3, Protocol1_9_4To1_10> {
-
-    public BlockItemPackets1_10(Protocol1_9_4To1_10 protocol) {
-        super(protocol, "1.10");
-    }
-
-    @Override
-    protected void registerPackets() {
-        registerBlockChange(ClientboundPackets1_9_3.BLOCK_CHANGE);
-        registerMultiBlockChange(ClientboundPackets1_9_3.MULTI_BLOCK_CHANGE);
-
-        registerSetSlot(ClientboundPackets1_9_3.SET_SLOT);
-        registerWindowItems(ClientboundPackets1_9_3.WINDOW_ITEMS);
-
-        registerEntityEquipment(ClientboundPackets1_9_3.ENTITY_EQUIPMENT);
-
-        protocol.registerClientbound(ClientboundPackets1_9_3.PLUGIN_MESSAGE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.STRING); // 0 - Channel
-
-                handler(wrapper -> {
-                    if (wrapper.get(Type.STRING, 0).equals("MC|TrList")) {
-                        wrapper.passthrough(Type.INT); // Passthrough Window ID
-
-                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
-                        for (int i = 0; i < size; i++) {
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Input Item
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Output Item
-
-                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN); // Has second item
-                            if (secondItem) {
-                                wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Second Item
-                            }
-
-                            wrapper.passthrough(Type.BOOLEAN); // Trade disabled
-                            wrapper.passthrough(Type.INT); // Number of tools uses
-                            wrapper.passthrough(Type.INT); // Maximum number of trade uses
-                        }
-                    }
-                });
-            }
-        });
-
-        registerClickWindow(ServerboundPackets1_9_3.CLICK_WINDOW);
-        registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION);
-
-        protocol.registerClientbound(ClientboundPackets1_9_3.CHUNK_DATA, wrapper -> {
-            ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
-
-            ChunkType1_9_3 type = ChunkType1_9_3.forEnvironment(clientWorld.getEnvironment());
-            Chunk chunk = wrapper.passthrough(type);
-
-            handleChunk(chunk);
-        });
-
-        // Rewrite metadata items
-        protocol.getEntityRewriter().filter().handler((event, meta) -> {
-            if (meta.metaType().type().equals(Type.ITEM1_8)) // Is Item
-                meta.setValue(handleItemToClient(event.user(), (Item) meta.getValue()));
-        });
-
-        // Particle
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_PARTICLE, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.INT);
-                map(Type.BOOLEAN);
-                map(Type.FLOAT);
-                map(Type.FLOAT);
-                map(Type.FLOAT);
-                map(Type.FLOAT);
-                map(Type.FLOAT);
-                map(Type.FLOAT);
-                map(Type.FLOAT);
-                map(Type.INT);
-
-                handler(wrapper -> {
-                    int id = wrapper.get(Type.INT, 0);
-                    if (id == 46) { // new falling_dust
-                        wrapper.set(Type.INT, 0, 38); // -> block_dust
-                    }
-                });
-            }
-        });
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/protocol1_9_4to1_10/packets/EntityPackets1_10.java

@@ -1,171 +0,0 @@
-/*
- * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
- * Copyright (C) 2016-2024 ViaVersion and contributors
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.packets;
-
-import com.viaversion.viabackwards.api.entities.storage.EntityData;
-import com.viaversion.viabackwards.api.entities.storage.WrappedMetadata;
-import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.Protocol1_9_4To1_10;
-import com.viaversion.viaversion.api.minecraft.entities.EntityType;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_10;
-import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.minecraft.metadata.types.MetaType1_9;
-import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.api.type.types.version.Types1_9;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import java.util.List;
-
-public class EntityPackets1_10 extends LegacyEntityRewriter<ClientboundPackets1_9_3, Protocol1_9_4To1_10> {
-
-    public EntityPackets1_10(Protocol1_9_4To1_10 protocol) {
-        super(protocol);
-    }
-
-    @Override
-    protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_ENTITY, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.BYTE); // 2 - Type
-                map(Type.DOUBLE); // 3 - x
-                map(Type.DOUBLE); // 4 - y
-                map(Type.DOUBLE); // 5 - z
-                map(Type.BYTE); // 6 - Pitch
-                map(Type.BYTE); // 7 - Yaw
-                map(Type.INT); // 8 - data
-
-                // Track Entity
-                handler(getObjectTrackerHandler());
-                handler(getObjectRewriter(id -> EntityTypes1_11.ObjectType.findById(id).orElse(null)));
-
-                handler(protocol.getItemRewriter().getFallingBlockHandler());
-            }
-        });
-
-        registerTracker(ClientboundPackets1_9_3.SPAWN_EXPERIENCE_ORB, EntityTypes1_10.EntityType.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_9_3.SPAWN_GLOBAL_ENTITY, EntityTypes1_10.EntityType.WEATHER);
-
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_MOB, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.UNSIGNED_BYTE); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_9.METADATA_LIST); // 12 - Metadata
-
-                // Track entity
-                handler(getTrackerHandler(Type.UNSIGNED_BYTE, 0));
-
-                // Rewrite entity type / metadata
-                handler(wrapper -> {
-                    int entityId = wrapper.get(Type.VAR_INT, 0);
-                    EntityType type = tracker(wrapper.user()).entityType(entityId);
-
-                    List<Metadata> metadata = wrapper.get(Types1_9.METADATA_LIST, 0);
-                    handleMetadata(wrapper.get(Type.VAR_INT, 0), metadata, wrapper.user());
-
-                    EntityData entityData = entityDataForType(type);
-                    if (entityData != null) {
-                        WrappedMetadata storage = new WrappedMetadata(metadata);
-                        wrapper.set(Type.UNSIGNED_BYTE, 0, (short) entityData.replacementId());
-                        if (entityData.hasBaseMeta())
-                            entityData.defaultMeta().createMeta(storage);
-                    }
-                });
-
-            }
-        });
-
-        registerTracker(ClientboundPackets1_9_3.SPAWN_PAINTING, EntityTypes1_10.EntityType.PAINTING);
-        registerJoinGame(ClientboundPackets1_9_3.JOIN_GAME, EntityTypes1_10.EntityType.PLAYER);
-        registerRespawn(ClientboundPackets1_9_3.RESPAWN);
-
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_PLAYER, new PacketHandlers() {
-            @Override
-            public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                map(Types1_9.METADATA_LIST); // 7 - Metadata list
-
-                handler(getTrackerAndMetaHandler(Types1_9.METADATA_LIST, EntityTypes1_11.EntityType.PLAYER));
-            }
-        });
-
-        registerRemoveEntities(ClientboundPackets1_9_3.DESTROY_ENTITIES);
-        registerMetadataRewriter(ClientboundPackets1_9_3.ENTITY_METADATA, Types1_9.METADATA_LIST);
-    }
-
-    @Override
-    protected void registerRewrites() {
-        mapEntityTypeWithData(EntityTypes1_10.EntityType.POLAR_BEAR, EntityTypes1_10.EntityType.SHEEP).plainName();
-
-        // Change the sheep color when the polar bear is standing up (index 13 -> Standing up)
-        filter().type(EntityTypes1_10.EntityType.POLAR_BEAR).index(13).handler((event, meta) -> {
-            boolean b = (boolean) meta.getValue();
-
-            meta.setTypeAndValue(MetaType1_9.Byte, b ? (byte) (14 & 0x0F) : (byte) (0));
-        });
-
-
-        // Handle husk (index 13 -> Zombie Type)
-        filter().type(EntityTypes1_10.EntityType.ZOMBIE).index(13).handler((event, meta) -> {
-            if ((int) meta.getValue() == 6) { // Is type Husk
-                meta.setValue(0);
-            }
-        });
-
-        // Handle Stray (index 12 -> Skeleton Type)
-        filter().type(EntityTypes1_10.EntityType.SKELETON).index(12).handler((event, meta) -> {
-            if ((int) meta.getValue() == 2) {
-                meta.setValue(0); // Change to default skeleton
-            }
-        });
-
-        // Handle the missing NoGravity tag for every metadata
-        filter().removeIndex(5);
-    }
-
-    @Override
-    public EntityType typeFromId(int typeId) {
-        return EntityTypes1_10.getTypeFromId(typeId, false);
-    }
-
-    @Override
-    public EntityType objectTypeFromId(int typeId) {
-        return EntityTypes1_10.getTypeFromId(typeId, true);
-    }
-}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_10to1_9_3/Protocol1_10To1_9_3.java

@@ -16,77 +16,77 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_9_4to1_10;
+package com.viaversion.viabackwards.protocol.v1_10to1_9_3;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viabackwards.api.rewriters.SoundRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.packets.BlockItemPackets1_10;
-import com.viaversion.viabackwards.protocol.protocol1_9_4to1_10.packets.EntityPackets1_10;
+import com.viaversion.viabackwards.protocol.v1_10to1_9_3.rewriter.BlockItemPacketRewriter1_10;
+import com.viaversion.viabackwards.protocol.v1_10to1_9_3.rewriter.EntityPacketRewriter1_10;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_10;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.protocol.remapper.ValueTransformer;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 
-public class Protocol1_9_4To1_10 extends BackwardsProtocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
+public class Protocol1_10To1_9_3 extends BackwardsProtocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
 
-    public static final BackwardsMappings MAPPINGS = new BackwardsMappings("1.10", "1.9.4");
-    private static final ValueTransformer<Float, Short> TO_OLD_PITCH = new ValueTransformer<Float, Short>(Type.UNSIGNED_BYTE) {
-        public Short transform(PacketWrapper packetWrapper, Float inputValue) throws Exception {
+    public static final BackwardsMappingData MAPPINGS = new BackwardsMappingData("1.10", "1.9.4");
+    private static final ValueTransformer<Float, Short> TO_OLD_PITCH = new ValueTransformer<>(Types.UNSIGNED_BYTE) {
+        public Short transform(PacketWrapper packetWrapper, Float inputValue) {
             return (short) Math.round(inputValue * 63.5F);
         }
     };
-    private final EntityPackets1_10 entityPackets = new EntityPackets1_10(this);
-    private final BlockItemPackets1_10 blockItemPackets = new BlockItemPackets1_10(this);
+    private final EntityPacketRewriter1_10 entityRewriter = new EntityPacketRewriter1_10(this);
+    private final BlockItemPacketRewriter1_10 itemRewriter = new BlockItemPacketRewriter1_10(this);
 
-    public Protocol1_9_4To1_10() {
+    public Protocol1_10To1_9_3() {
         super(ClientboundPackets1_9_3.class, ClientboundPackets1_9_3.class, ServerboundPackets1_9_3.class, ServerboundPackets1_9_3.class);
     }
 
     @Override
     protected void registerPackets() {
-        entityPackets.register();
-        blockItemPackets.register();
+        entityRewriter.register();
+        itemRewriter.register();
 
         SoundRewriter<ClientboundPackets1_9_3> soundRewriter = new SoundRewriter<>(this);
-        registerClientbound(ClientboundPackets1_9_3.NAMED_SOUND, new PacketHandlers() {
+        registerClientbound(ClientboundPackets1_9_3.CUSTOM_SOUND, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.STRING); // 0 - Sound name
-                map(Type.VAR_INT); // 1 - Sound Category
-                map(Type.INT); // 2 - x
-                map(Type.INT); // 3 - y
-                map(Type.INT); // 4 - z
-                map(Type.FLOAT); // 5 - Volume
-                map(Type.FLOAT, TO_OLD_PITCH); // 6 - Pitch
+                map(Types.STRING); // 0 - Sound name
+                map(Types.VAR_INT); // 1 - Sound Category
+                map(Types.INT); // 2 - x
+                map(Types.INT); // 3 - y
+                map(Types.INT); // 4 - z
+                map(Types.FLOAT); // 5 - Volume
+                map(Types.FLOAT, TO_OLD_PITCH); // 6 - Pitch
                 handler(soundRewriter.getNamedSoundHandler());
             }
         });
         registerClientbound(ClientboundPackets1_9_3.SOUND, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Sound name
-                map(Type.VAR_INT); // 1 - Sound Category
-                map(Type.INT); // 2 - x
-                map(Type.INT); // 3 - y
-                map(Type.INT); // 4 - z
-                map(Type.FLOAT); // 5 - Volume
-                map(Type.FLOAT, TO_OLD_PITCH); // 6 - Pitch
+                map(Types.VAR_INT); // 0 - Sound name
+                map(Types.VAR_INT); // 1 - Sound Category
+                map(Types.INT); // 2 - x
+                map(Types.INT); // 3 - y
+                map(Types.INT); // 4 - z
+                map(Types.FLOAT); // 5 - Volume
+                map(Types.FLOAT, TO_OLD_PITCH); // 6 - Pitch
                 handler(soundRewriter.getSoundHandler());
             }
         });
 
-        registerServerbound(ServerboundPackets1_9_3.RESOURCE_PACK_STATUS, new PacketHandlers() {
+        registerServerbound(ServerboundPackets1_9_3.RESOURCE_PACK, new PacketHandlers() {
             @Override
             public void register() {
-                read(Type.STRING); // 0 - Hash
-                map(Type.VAR_INT); // 1 - Result
+                read(Types.STRING); // 0 - Hash
+                map(Types.VAR_INT); // 1 - Result
             }
         });
     }
@@ -101,18 +101,18 @@ public class Protocol1_9_4To1_10 extends BackwardsProtocol<ClientboundPackets1_9
     }
 
     @Override
-    public BackwardsMappings getMappingData() {
+    public BackwardsMappingData getMappingData() {
         return MAPPINGS;
     }
 
     @Override
-    public EntityPackets1_10 getEntityRewriter() {
-        return entityPackets;
+    public EntityPacketRewriter1_10 getEntityRewriter() {
+        return entityRewriter;
     }
 
     @Override
-    public BlockItemPackets1_10 getItemRewriter() {
-        return blockItemPackets;
+    public BlockItemPacketRewriter1_10 getItemRewriter() {
+        return itemRewriter;
     }
 
     @Override

common/src/main/java/com/viaversion/viabackwards/protocol/v1_10to1_9_3/rewriter/BlockItemPacketRewriter1_10.java

@@ -0,0 +1,120 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.viaversion.viabackwards.protocol.v1_10to1_9_3.rewriter;
+
+import com.viaversion.viabackwards.api.rewriters.LegacyBlockItemRewriter;
+import com.viaversion.viabackwards.protocol.v1_10to1_9_3.Protocol1_10To1_9_3;
+import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
+import com.viaversion.viaversion.api.minecraft.ClientWorld;
+import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
+import com.viaversion.viaversion.api.minecraft.item.Item;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
+
+public class BlockItemPacketRewriter1_10 extends LegacyBlockItemRewriter<ClientboundPackets1_9_3, ServerboundPackets1_9_3, Protocol1_10To1_9_3> {
+
+    public BlockItemPacketRewriter1_10(Protocol1_10To1_9_3 protocol) {
+        super(protocol, "1.10");
+    }
+
+    @Override
+    protected void registerPackets() {
+        registerBlockChange(ClientboundPackets1_9_3.BLOCK_UPDATE);
+        registerMultiBlockChange(ClientboundPackets1_9_3.CHUNK_BLOCKS_UPDATE);
+
+        registerSetSlot(ClientboundPackets1_9_3.CONTAINER_SET_SLOT);
+        registerSetContent(ClientboundPackets1_9_3.CONTAINER_SET_CONTENT);
+
+        registerSetEquippedItem(ClientboundPackets1_9_3.SET_EQUIPPED_ITEM);
+
+        protocol.registerClientbound(ClientboundPackets1_9_3.CUSTOM_PAYLOAD, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.STRING); // 0 - Channel
+
+                handler(wrapper -> {
+                    if (wrapper.get(Types.STRING, 0).equals("MC|TrList")) {
+                        wrapper.passthrough(Types.INT); // Passthrough Window ID
+
+                        int size = wrapper.passthrough(Types.UNSIGNED_BYTE);
+                        for (int i = 0; i < size; i++) {
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Input Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Output Item
+
+                            boolean secondItem = wrapper.passthrough(Types.BOOLEAN); // Has second item
+                            if (secondItem) {
+                                wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Second Item
+                            }
+
+                            wrapper.passthrough(Types.BOOLEAN); // Trade disabled
+                            wrapper.passthrough(Types.INT); // Number of tools uses
+                            wrapper.passthrough(Types.INT); // Maximum number of trade uses
+                        }
+                    }
+                });
+            }
+        });
+
+        registerContainerClick(ServerboundPackets1_9_3.CONTAINER_CLICK);
+        registerSetCreativeModeSlot(ServerboundPackets1_9_3.SET_CREATIVE_MODE_SLOT);
+
+        protocol.registerClientbound(ClientboundPackets1_9_3.LEVEL_CHUNK, wrapper -> {
+            ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
+
+            ChunkType1_9_3 type = ChunkType1_9_3.forEnvironment(clientWorld.getEnvironment());
+            Chunk chunk = wrapper.passthrough(type);
+
+            handleChunk(chunk);
+        });
+
+        // Rewrite metadata items
+        protocol.getEntityRewriter().filter().handler((event, meta) -> {
+            if (meta.dataType().type().equals(Types.ITEM1_8)) // Is Item
+                meta.setValue(handleItemToClient(event.user(), (Item) meta.getValue()));
+        });
+
+        // Particle
+        protocol.registerClientbound(ClientboundPackets1_9_3.LEVEL_PARTICLES, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.INT);
+                map(Types.BOOLEAN);
+                map(Types.FLOAT);
+                map(Types.FLOAT);
+                map(Types.FLOAT);
+                map(Types.FLOAT);
+                map(Types.FLOAT);
+                map(Types.FLOAT);
+                map(Types.FLOAT);
+                map(Types.INT);
+
+                handler(wrapper -> {
+                    int id = wrapper.get(Types.INT, 0);
+                    if (id == 46) { // new falling_dust
+                        wrapper.set(Types.INT, 0, 38); // -> block_dust
+                    }
+                });
+            }
+        });
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_10to1_9_3/rewriter/EntityPacketRewriter1_10.java

@@ -0,0 +1,171 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.viaversion.viabackwards.protocol.v1_10to1_9_3.rewriter;
+
+import com.viaversion.viabackwards.api.entities.storage.EntityReplacement;
+import com.viaversion.viabackwards.api.entities.storage.WrappedMetadata;
+import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
+import com.viaversion.viabackwards.protocol.v1_10to1_9_3.Protocol1_10To1_9_3;
+import com.viaversion.viaversion.api.minecraft.entities.EntityType;
+import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_10;
+import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_9;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.api.type.types.version.Types1_9;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import java.util.List;
+
+public class EntityPacketRewriter1_10 extends LegacyEntityRewriter<ClientboundPackets1_9_3, Protocol1_10To1_9_3> {
+
+    public EntityPacketRewriter1_10(Protocol1_10To1_9_3 protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected void registerPackets() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_ENTITY, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.BYTE); // 2 - Type
+                map(Types.DOUBLE); // 3 - x
+                map(Types.DOUBLE); // 4 - y
+                map(Types.DOUBLE); // 5 - z
+                map(Types.BYTE); // 6 - Pitch
+                map(Types.BYTE); // 7 - Yaw
+                map(Types.INT); // 8 - data
+
+                // Track Entity
+                handler(getObjectTrackerHandler());
+                handler(getObjectRewriter(EntityTypes1_11.ObjectType::findById));
+
+                handler(protocol.getItemRewriter().getFallingBlockHandler());
+            }
+        });
+
+        registerTracker(ClientboundPackets1_9_3.ADD_EXPERIENCE_ORB, EntityTypes1_10.EntityType.EXPERIENCE_ORB);
+        registerTracker(ClientboundPackets1_9_3.ADD_GLOBAL_ENTITY, EntityTypes1_10.EntityType.LIGHTNING_BOLT);
+
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_MOB, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.UNSIGNED_BYTE); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Yaw
+                map(Types.BYTE); // 7 - Pitch
+                map(Types.BYTE); // 8 - Head Pitch
+                map(Types.SHORT); // 9 - Velocity X
+                map(Types.SHORT); // 10 - Velocity Y
+                map(Types.SHORT); // 11 - Velocity Z
+                map(Types1_9.ENTITY_DATA_LIST); // 12 - Metadata
+
+                // Track entity
+                handler(getTrackerHandler(Types.UNSIGNED_BYTE, 0));
+
+                // Rewrite entity type / metadata
+                handler(wrapper -> {
+                    int entityId = wrapper.get(Types.VAR_INT, 0);
+                    EntityType type = tracker(wrapper.user()).entityType(entityId);
+
+                    List<EntityData> metadata = wrapper.get(Types1_9.ENTITY_DATA_LIST, 0);
+                    handleEntityData(wrapper.get(Types.VAR_INT, 0), metadata, wrapper.user());
+
+                    EntityReplacement entityReplacement = entityDataForType(type);
+                    if (entityReplacement != null) {
+                        WrappedMetadata storage = new WrappedMetadata(metadata);
+                        wrapper.set(Types.UNSIGNED_BYTE, 0, (short) entityReplacement.replacementId());
+                        if (entityReplacement.hasBaseMeta())
+                            entityReplacement.defaultMeta().createMeta(storage);
+                    }
+                });
+
+            }
+        });
+
+        registerTracker(ClientboundPackets1_9_3.ADD_PAINTING, EntityTypes1_10.EntityType.PAINTING);
+        registerJoinGame(ClientboundPackets1_9_3.LOGIN, EntityTypes1_10.EntityType.PLAYER);
+        registerRespawn(ClientboundPackets1_9_3.RESPAWN);
+
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_PLAYER, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Player UUID
+                map(Types.DOUBLE); // 2 - X
+                map(Types.DOUBLE); // 3 - Y
+                map(Types.DOUBLE); // 4 - Z
+                map(Types.BYTE); // 5 - Yaw
+                map(Types.BYTE); // 6 - Pitch
+                map(Types1_9.ENTITY_DATA_LIST); // 7 - Metadata list
+
+                handler(getTrackerAndMetaHandler(Types1_9.ENTITY_DATA_LIST, EntityTypes1_11.EntityType.PLAYER));
+            }
+        });
+
+        registerRemoveEntities(ClientboundPackets1_9_3.REMOVE_ENTITIES);
+        registerSetEntityData(ClientboundPackets1_9_3.SET_ENTITY_DATA, Types1_9.ENTITY_DATA_LIST);
+    }
+
+    @Override
+    protected void registerRewrites() {
+        mapEntityTypeWithData(EntityTypes1_10.EntityType.POLAR_BEAR, EntityTypes1_10.EntityType.SHEEP).plainName();
+
+        // Change the sheep color when the polar bear is standing up (index 13 -> Standing up)
+        filter().type(EntityTypes1_10.EntityType.POLAR_BEAR).index(13).handler((event, meta) -> {
+            boolean b = (boolean) meta.getValue();
+
+            meta.setTypeAndValue(EntityDataTypes1_9.BYTE, b ? (byte) (14 & 0x0F) : (byte) (0));
+        });
+
+
+        // Handle husk (index 13 -> Zombie Type)
+        filter().type(EntityTypes1_10.EntityType.ZOMBIE).index(13).handler((event, meta) -> {
+            if ((int) meta.getValue() == 6) { // Is type Husk
+                meta.setValue(0);
+            }
+        });
+
+        // Handle Stray (index 12 -> Skeleton Type)
+        filter().type(EntityTypes1_10.EntityType.SKELETON).index(12).handler((event, meta) -> {
+            if ((int) meta.getValue() == 2) {
+                meta.setValue(0); // Change to default skeleton
+            }
+        });
+
+        // Handle the missing NoGravity tag for every metadata
+        filter().removeIndex(5);
+    }
+
+    @Override
+    public EntityType typeFromId(int typeId) {
+        return EntityTypes1_10.getTypeFromId(typeId, false);
+    }
+
+    @Override
+    public EntityType objectTypeFromId(int typeId) {
+        return EntityTypes1_10.getTypeFromId(typeId, true);
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11_1to1_11/Protocol1_11_1To1_11.java

@@ -16,33 +16,27 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11to1_11_1;
+package com.viaversion.viabackwards.protocol.v1_11_1to1_11;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.packets.EntityPackets1_11_1;
-import com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.packets.ItemPackets1_11_1;
+import com.viaversion.viabackwards.protocol.v1_11_1to1_11.rewriter.EntityPacketRewriter1_11_1;
+import com.viaversion.viabackwards.protocol.v1_11_1to1_11.rewriter.ItemPacketRewriter1_11_1;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 
-public class Protocol1_11To1_11_1 extends BackwardsProtocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
+public class Protocol1_11_1To1_11 extends BackwardsProtocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
 
-    private final EntityPackets1_11_1 entityPackets = new EntityPackets1_11_1(this);
-    private final ItemPackets1_11_1 itemRewriter = new ItemPackets1_11_1(this);
+    private final EntityPacketRewriter1_11_1 entityRewriter = new EntityPacketRewriter1_11_1(this);
+    private final ItemPacketRewriter1_11_1 itemRewriter = new ItemPacketRewriter1_11_1(this);
 
-    public Protocol1_11To1_11_1() {
+    public Protocol1_11_1To1_11() {
         super(ClientboundPackets1_9_3.class, ClientboundPackets1_9_3.class, ServerboundPackets1_9_3.class, ServerboundPackets1_9_3.class);
     }
 
-    @Override
-    protected void registerPackets() {
-        entityPackets.register();
-        itemRewriter.register();
-    }
-
     @Override
     public void init(UserConnection user) {
         if (!user.has(ClientWorld.class)) {
@@ -53,12 +47,12 @@ public class Protocol1_11To1_11_1 extends BackwardsProtocol<ClientboundPackets1_
     }
 
     @Override
-    public EntityPackets1_11_1 getEntityRewriter() {
-        return entityPackets;
+    public EntityPacketRewriter1_11_1 getEntityRewriter() {
+        return entityRewriter;
     }
 
     @Override
-    public ItemPackets1_11_1 getItemRewriter() {
+    public ItemPacketRewriter1_11_1 getItemRewriter() {
         return itemRewriter;
     }
 }

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11_1to1_11/rewriter/EntityPacketRewriter1_11_1.java

@@ -0,0 +1,128 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.viaversion.viabackwards.protocol.v1_11_1to1_11.rewriter;
+
+import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
+import com.viaversion.viabackwards.protocol.v1_11_1to1_11.Protocol1_11_1To1_11;
+import com.viaversion.viaversion.api.minecraft.entities.EntityType;
+import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.api.type.types.version.Types1_9;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+
+public class EntityPacketRewriter1_11_1 extends LegacyEntityRewriter<ClientboundPackets1_9_3, Protocol1_11_1To1_11> {
+
+    public EntityPacketRewriter1_11_1(Protocol1_11_1To1_11 protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected void registerPackets() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_ENTITY, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.BYTE); // 2 - Type
+                map(Types.DOUBLE); // 3 - x
+                map(Types.DOUBLE); // 4 - y
+                map(Types.DOUBLE); // 5 - z
+                map(Types.BYTE); // 6 - Pitch
+                map(Types.BYTE); // 7 - Yaw
+                map(Types.INT); // 8 - data
+
+                // Track Entity
+                handler(getObjectTrackerHandler());
+                handler(getObjectRewriter(EntityTypes1_11.ObjectType::findById));
+            }
+        });
+
+        registerTracker(ClientboundPackets1_9_3.ADD_EXPERIENCE_ORB, EntityTypes1_11.EntityType.EXPERIENCE_ORB);
+        registerTracker(ClientboundPackets1_9_3.ADD_GLOBAL_ENTITY, EntityTypes1_11.EntityType.LIGHTNING_BOLT);
+
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_MOB, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.VAR_INT); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Yaw
+                map(Types.BYTE); // 7 - Pitch
+                map(Types.BYTE); // 8 - Head Pitch
+                map(Types.SHORT); // 9 - Velocity X
+                map(Types.SHORT); // 10 - Velocity Y
+                map(Types.SHORT); // 11 - Velocity Z
+                map(Types1_9.ENTITY_DATA_LIST); // 12 - Metadata
+
+                // Track entity
+                handler(getTrackerHandler());
+
+                // Rewrite entity type / metadata
+                handler(getMobSpawnRewriter1_11(Types1_9.ENTITY_DATA_LIST));
+            }
+        });
+
+        registerTracker(ClientboundPackets1_9_3.ADD_PAINTING, EntityTypes1_11.EntityType.PAINTING);
+        registerJoinGame(ClientboundPackets1_9_3.LOGIN, EntityTypes1_11.EntityType.PLAYER);
+        registerRespawn(ClientboundPackets1_9_3.RESPAWN);
+
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_PLAYER, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Player UUID
+                map(Types.DOUBLE); // 2 - X
+                map(Types.DOUBLE); // 3 - Y
+                map(Types.DOUBLE); // 4 - Z
+                map(Types.BYTE); // 5 - Yaw
+                map(Types.BYTE); // 6 - Pitch
+                map(Types1_9.ENTITY_DATA_LIST); // 7 - Metadata list
+
+                handler(getTrackerAndMetaHandler(Types1_9.ENTITY_DATA_LIST, EntityTypes1_11.EntityType.PLAYER));
+            }
+        });
+
+        registerRemoveEntities(ClientboundPackets1_9_3.REMOVE_ENTITIES);
+        registerSetEntityData(ClientboundPackets1_9_3.SET_ENTITY_DATA, Types1_9.ENTITY_DATA_LIST);
+    }
+
+    @Override
+    protected void registerRewrites() {
+        // Handle non-existing firework metadata (index 7 entity id for boosting)
+        filter().type(EntityTypes1_11.EntityType.FIREWORK_ROCKET).cancel(7);
+
+        // Handle non-existing pig metadata (index 14 - boost time)
+        filter().type(EntityTypes1_11.EntityType.PIG).cancel(14);
+    }
+
+    @Override
+    public EntityType typeFromId(int typeId) {
+        return EntityTypes1_11.getTypeFromId(typeId, false);
+    }
+
+    @Override
+    public EntityType objectTypeFromId(int typeId) {
+        return EntityTypes1_11.getTypeFromId(typeId, true);
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11_1to1_11/rewriter/ItemPacketRewriter1_11_1.java

@@ -16,67 +16,68 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.packets;
+package com.viaversion.viabackwards.protocol.v1_11_1to1_11.rewriter;
 
 import com.viaversion.viabackwards.api.rewriters.LegacyBlockItemRewriter;
 import com.viaversion.viabackwards.api.rewriters.LegacyEnchantmentRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_11to1_11_1.Protocol1_11To1_11_1;
+import com.viaversion.viabackwards.protocol.v1_11_1to1_11.Protocol1_11_1To1_11;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 
-public class ItemPackets1_11_1 extends LegacyBlockItemRewriter<ClientboundPackets1_9_3, ServerboundPackets1_9_3, Protocol1_11To1_11_1> {
+public class ItemPacketRewriter1_11_1 extends LegacyBlockItemRewriter<ClientboundPackets1_9_3, ServerboundPackets1_9_3, Protocol1_11_1To1_11> {
 
     private LegacyEnchantmentRewriter enchantmentRewriter;
 
-    public ItemPackets1_11_1(Protocol1_11To1_11_1 protocol) {
+    public ItemPacketRewriter1_11_1(Protocol1_11_1To1_11 protocol) {
         super(protocol, "1.11.1");
     }
 
     @Override
     protected void registerPackets() {
-        registerSetSlot(ClientboundPackets1_9_3.SET_SLOT);
-        registerWindowItems(ClientboundPackets1_9_3.WINDOW_ITEMS);
-        registerEntityEquipment(ClientboundPackets1_9_3.ENTITY_EQUIPMENT);
+        registerSetSlot(ClientboundPackets1_9_3.CONTAINER_SET_SLOT);
+        registerSetContent(ClientboundPackets1_9_3.CONTAINER_SET_CONTENT);
+        registerSetEquippedItem(ClientboundPackets1_9_3.SET_EQUIPPED_ITEM);
 
         // Plugin message Packet -> Trading
-        protocol.registerClientbound(ClientboundPackets1_9_3.PLUGIN_MESSAGE, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.CUSTOM_PAYLOAD, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.STRING); // 0 - Channel
+                map(Types.STRING); // 0 - Channel
 
                 handler(wrapper -> {
-                    if (wrapper.get(Type.STRING, 0).equals("MC|TrList")) {
-                        wrapper.passthrough(Type.INT); // Passthrough Window ID
+                    if (wrapper.get(Types.STRING, 0).equals("MC|TrList")) {
+                        wrapper.passthrough(Types.INT); // Passthrough Window ID
 
-                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
+                        int size = wrapper.passthrough(Types.UNSIGNED_BYTE);
                         for (int i = 0; i < size; i++) {
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Input Item
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Output Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Input Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Output Item
 
-                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN); // Has second item
+                            boolean secondItem = wrapper.passthrough(Types.BOOLEAN); // Has second item
                             if (secondItem) {
-                                wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Second Item
+                                wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Second Item
                             }
 
-                            wrapper.passthrough(Type.BOOLEAN); // Trade disabled
-                            wrapper.passthrough(Type.INT); // Number of tools uses
-                            wrapper.passthrough(Type.INT); // Maximum number of trade uses
+                            wrapper.passthrough(Types.BOOLEAN); // Trade disabled
+                            wrapper.passthrough(Types.INT); // Number of tools uses
+                            wrapper.passthrough(Types.INT); // Maximum number of trade uses
                         }
                     }
                 });
             }
         });
 
-        registerClickWindow(ServerboundPackets1_9_3.CLICK_WINDOW);
-        registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION);
+        registerContainerClick(ServerboundPackets1_9_3.CONTAINER_CLICK);
+        registerSetCreativeModeSlot(ServerboundPackets1_9_3.SET_CREATIVE_MODE_SLOT);
 
         // Handle item metadata
         protocol.getEntityRewriter().filter().handler((event, meta) -> {
-            if (meta.metaType().type().equals(Type.ITEM1_8)) { // Is Item
+            if (meta.dataType().type().equals(Types.ITEM1_8)) { // Is Item
                 meta.setValue(handleItemToClient(event.user(), (Item) meta.getValue()));
             }
         });

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/Protocol1_11To1_10.java

@@ -16,40 +16,40 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11;
+package com.viaversion.viabackwards.protocol.v1_11to1_10;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viabackwards.api.rewriters.SoundRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.packets.BlockItemPackets1_11;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.packets.EntityPackets1_11;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.packets.PlayerPackets1_11;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.storage.WindowTracker;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.rewriter.BlockItemPacketRewriter1_11;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.rewriter.EntityPacketRewriter1_11;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.rewriter.PlayerPacketRewriter1_11;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.storage.WindowTracker;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 
-public class Protocol1_10To1_11 extends BackwardsProtocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
+public class Protocol1_11To1_10 extends BackwardsProtocol<ClientboundPackets1_9_3, ClientboundPackets1_9_3, ServerboundPackets1_9_3, ServerboundPackets1_9_3> {
 
-    public static final BackwardsMappings MAPPINGS = new BackwardsMappings("1.11", "1.10");
-    private final EntityPackets1_11 entityPackets = new EntityPackets1_11(this);
-    private final BlockItemPackets1_11 blockItemPackets = new BlockItemPackets1_11(this);
+    public static final BackwardsMappingData MAPPINGS = new BackwardsMappingData("1.11", "1.10");
+    private final EntityPacketRewriter1_11 entityRewriter = new EntityPacketRewriter1_11(this);
+    private final BlockItemPacketRewriter1_11 itemRewriter = new BlockItemPacketRewriter1_11(this);
 
-    public Protocol1_10To1_11() {
+    public Protocol1_11To1_10() {
         super(ClientboundPackets1_9_3.class, ClientboundPackets1_9_3.class, ServerboundPackets1_9_3.class, ServerboundPackets1_9_3.class);
     }
 
     @Override
     protected void registerPackets() {
-        blockItemPackets.register();
-        entityPackets.register();
-        PlayerPackets1_11.register(this);
+        entityRewriter.register();
+        itemRewriter.register();
+        PlayerPacketRewriter1_11.register(this);
 
         SoundRewriter<ClientboundPackets1_9_3> soundRewriter = new SoundRewriter<>(this);
-        soundRewriter.registerNamedSound(ClientboundPackets1_9_3.NAMED_SOUND);
+        soundRewriter.registerNamedSound(ClientboundPackets1_9_3.CUSTOM_SOUND);
         soundRewriter.registerSound(ClientboundPackets1_9_3.SOUND);
     }
 
@@ -67,18 +67,18 @@ public class Protocol1_10To1_11 extends BackwardsProtocol<ClientboundPackets1_9_
     }
 
     @Override
-    public BackwardsMappings getMappingData() {
+    public BackwardsMappingData getMappingData() {
         return MAPPINGS;
     }
 
     @Override
-    public EntityPackets1_11 getEntityRewriter() {
-        return entityPackets;
+    public EntityPacketRewriter1_11 getEntityRewriter() {
+        return entityRewriter;
     }
 
     @Override
-    public BlockItemPackets1_11 getItemRewriter() {
-        return blockItemPackets;
+    public BlockItemPacketRewriter1_11 getItemRewriter() {
+        return itemRewriter;
     }
 
     @Override

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/data/SplashPotionMappings1_10.java

@@ -15,12 +15,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11.data;
+package com.viaversion.viabackwards.protocol.v1_11to1_10.data;
 
 import com.viaversion.viaversion.libs.fastutil.ints.Int2IntMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2IntOpenHashMap;
 
-public class PotionSplashHandler {
+public class SplashPotionMappings1_10 {
 
     private static final Int2IntMap DATA = new Int2IntOpenHashMap(14, 0.99F);
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/rewriter/BlockItemPacketRewriter1_11.java

@@ -16,14 +16,14 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11.packets;
+package com.viaversion.viabackwards.protocol.v1_11to1_10.rewriter;
 
 import com.viaversion.viabackwards.api.data.MappedLegacyBlockItem;
 import com.viaversion.viabackwards.api.rewriters.LegacyBlockItemRewriter;
 import com.viaversion.viabackwards.api.rewriters.LegacyEnchantmentRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.Protocol1_10To1_11;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.storage.ChestedHorseStorage;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.storage.WindowTracker;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.Protocol1_11To1_10;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.storage.ChestedHorseStorage;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.storage.WindowTracker;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.data.entity.EntityTracker;
 import com.viaversion.viaversion.api.data.entity.StoredEntityData;
@@ -33,69 +33,72 @@ import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
 import com.viaversion.viaversion.api.minecraft.item.DataItem;
 import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_9_3;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.protocols.protocol1_11to1_10.rewriter.EntityIdRewriter;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.viaversion.protocols.v1_10to1_11.data.EntityMappings1_11;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 import com.viaversion.viaversion.util.IdAndData;
 import java.util.Arrays;
 import java.util.Optional;
 
-public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPackets1_9_3, ServerboundPackets1_9_3, Protocol1_10To1_11> {
+public class BlockItemPacketRewriter1_11 extends LegacyBlockItemRewriter<ClientboundPackets1_9_3, ServerboundPackets1_9_3, Protocol1_11To1_10> {
 
     private LegacyEnchantmentRewriter enchantmentRewriter;
 
-    public BlockItemPackets1_11(Protocol1_10To1_11 protocol) {
+    public BlockItemPacketRewriter1_11(Protocol1_11To1_10 protocol) {
         super(protocol, "1.11");
     }
 
     @Override
     protected void registerPackets() {
-        registerBlockChange(ClientboundPackets1_9_3.BLOCK_CHANGE);
-        registerMultiBlockChange(ClientboundPackets1_9_3.MULTI_BLOCK_CHANGE);
+        registerBlockChange(ClientboundPackets1_9_3.BLOCK_UPDATE);
+        registerMultiBlockChange(ClientboundPackets1_9_3.CHUNK_BLOCKS_UPDATE);
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.SET_SLOT, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.CONTAINER_SET_SLOT, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.SHORT); // 1 - Slot ID
-                map(Type.ITEM1_8); // 2 - Slot Value
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.SHORT); // 1 - Slot ID
+                map(Types.ITEM1_8); // 2 - Slot Value
 
-                handler(wrapper -> handleItemToClient(wrapper.user(), wrapper.get(Type.ITEM1_8, 0)));
+                handler(wrapper -> handleItemToClient(wrapper.user(), wrapper.get(Types.ITEM1_8, 0)));
 
                 // Handle Llama
                 handler(wrapper -> {
                     if (isLlama(wrapper.user())) {
                         Optional<ChestedHorseStorage> horse = getChestedHorse(wrapper.user());
-                        if (!horse.isPresent())
+                        if (horse.isEmpty()) {
                             return;
+                        }
+
                         ChestedHorseStorage storage = horse.get();
-                        int currentSlot = wrapper.get(Type.SHORT, 0);
-                        wrapper.set(Type.SHORT, 0, ((Integer) (currentSlot = getNewSlotId(storage, currentSlot))).shortValue());
-                        wrapper.set(Type.ITEM1_8, 0, getNewItem(storage, currentSlot, wrapper.get(Type.ITEM1_8, 0)));
+                        int currentSlot = wrapper.get(Types.SHORT, 0);
+                        wrapper.set(Types.SHORT, 0, ((Integer) (currentSlot = getNewSlotId(storage, currentSlot))).shortValue());
+                        wrapper.set(Types.ITEM1_8, 0, getNewItem(storage, currentSlot, wrapper.get(Types.ITEM1_8, 0)));
                     }
                 });
             }
         });
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.WINDOW_ITEMS, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.CONTAINER_SET_CONTENT, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.ITEM1_8_SHORT_ARRAY); // 1 - Window Values
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.ITEM1_8_SHORT_ARRAY); // 1 - Window Values
 
                 handler(wrapper -> {
-                    Item[] stacks = wrapper.get(Type.ITEM1_8_SHORT_ARRAY, 0);
+                    Item[] stacks = wrapper.get(Types.ITEM1_8_SHORT_ARRAY, 0);
                     for (int i = 0; i < stacks.length; i++)
                         stacks[i] = handleItemToClient(wrapper.user(), stacks[i]);
 
                     if (isLlama(wrapper.user())) {
                         Optional<ChestedHorseStorage> horse = getChestedHorse(wrapper.user());
-                        if (!horse.isPresent())
+                        if (horse.isEmpty()) {
                             return;
+                        }
                         ChestedHorseStorage storage = horse.get();
                         stacks = Arrays.copyOf(stacks, !storage.isChested() ? 38 : 53);
 
@@ -103,74 +106,75 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
                             stacks[getNewSlotId(storage, i)] = stacks[i];
                             stacks[i] = getNewItem(storage, i, stacks[i]);
                         }
-                        wrapper.set(Type.ITEM1_8_SHORT_ARRAY, 0, stacks);
+                        wrapper.set(Types.ITEM1_8_SHORT_ARRAY, 0, stacks);
                     }
                 });
             }
         });
 
-        registerEntityEquipment(ClientboundPackets1_9_3.ENTITY_EQUIPMENT);
+        registerSetEquippedItem(ClientboundPackets1_9_3.SET_EQUIPPED_ITEM);
 
         // Plugin message -> Trading
-        protocol.registerClientbound(ClientboundPackets1_9_3.PLUGIN_MESSAGE, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.CUSTOM_PAYLOAD, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.STRING); // 0 - Channel
+                map(Types.STRING); // 0 - Channel
 
                 handler(wrapper -> {
-                    if (wrapper.get(Type.STRING, 0).equals("MC|TrList")) {
-                        wrapper.passthrough(Type.INT); // Passthrough Window ID
+                    if (wrapper.get(Types.STRING, 0).equals("MC|TrList")) {
+                        wrapper.passthrough(Types.INT); // Passthrough Window ID
 
-                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
+                        int size = wrapper.passthrough(Types.UNSIGNED_BYTE);
                         for (int i = 0; i < size; i++) {
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Input Item
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Output Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Input Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Output Item
 
-                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN); // Has second item
+                            boolean secondItem = wrapper.passthrough(Types.BOOLEAN); // Has second item
                             if (secondItem) {
-                                wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Second Item
+                                wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Second Item
                             }
 
-                            wrapper.passthrough(Type.BOOLEAN); // Trade disabled
-                            wrapper.passthrough(Type.INT); // Number of tools uses
-                            wrapper.passthrough(Type.INT); // Maximum number of trade uses
+                            wrapper.passthrough(Types.BOOLEAN); // Trade disabled
+                            wrapper.passthrough(Types.INT); // Number of tools uses
+                            wrapper.passthrough(Types.INT); // Maximum number of trade uses
                         }
                     }
                 });
             }
         });
 
-        protocol.registerServerbound(ServerboundPackets1_9_3.CLICK_WINDOW, new PacketHandlers() {
+        protocol.registerServerbound(ServerboundPackets1_9_3.CONTAINER_CLICK, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.SHORT); // 1 - Slot
-                map(Type.BYTE); // 2 - Button
-                map(Type.SHORT); // 3 - Action number
-                map(Type.VAR_INT); // 4 - Mode
-                map(Type.ITEM1_8); // 5 - Clicked Item
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.SHORT); // 1 - Slot
+                map(Types.BYTE); // 2 - Button
+                map(Types.SHORT); // 3 - Action number
+                map(Types.VAR_INT); // 4 - Mode
+                map(Types.ITEM1_8); // 5 - Clicked Item
 
-                handler(wrapper -> handleItemToServer(wrapper.user(), wrapper.get(Type.ITEM1_8, 0)));
+                handler(wrapper -> handleItemToServer(wrapper.user(), wrapper.get(Types.ITEM1_8, 0)));
 
                 // Llama slot
                 handler(wrapper -> {
                     if (isLlama(wrapper.user())) {
                         Optional<ChestedHorseStorage> horse = getChestedHorse(wrapper.user());
-                        if (!horse.isPresent())
+                        if (horse.isEmpty()) {
                             return;
+                        }
                         ChestedHorseStorage storage = horse.get();
-                        int clickSlot = wrapper.get(Type.SHORT, 0);
+                        int clickSlot = wrapper.get(Types.SHORT, 0);
                         int correctSlot = getOldSlotId(storage, clickSlot);
 
-                        wrapper.set(Type.SHORT, 0, ((Integer) correctSlot).shortValue());
+                        wrapper.set(Types.SHORT, 0, ((Integer) correctSlot).shortValue());
                     }
                 });
             }
         });
 
-        registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION);
+        registerSetCreativeModeSlot(ServerboundPackets1_9_3.SET_CREATIVE_MODE_SLOT);
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.CHUNK_DATA, wrapper -> {
+        protocol.registerClientbound(ClientboundPackets1_9_3.LEVEL_CHUNK, wrapper -> {
             ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
 
             ChunkType1_9_3 type = ChunkType1_9_3.forEnvironment(clientWorld.getEnvironment()); // Use the 1.10 Chunk type since nothing changed.
@@ -193,54 +197,54 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
         protocol.registerClientbound(ClientboundPackets1_9_3.BLOCK_ENTITY_DATA, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.POSITION1_8); // 0 - Position
-                map(Type.UNSIGNED_BYTE); // 1 - Action
-                map(Type.NAMED_COMPOUND_TAG); // 2 - NBT
+                map(Types.BLOCK_POSITION1_8); // 0 - Position
+                map(Types.UNSIGNED_BYTE); // 1 - Action
+                map(Types.NAMED_COMPOUND_TAG); // 2 - NBT
 
                 handler(wrapper -> {
                     // Remove on shulkerbox decleration
-                    if (wrapper.get(Type.UNSIGNED_BYTE, 0) == 10) {
+                    if (wrapper.get(Types.UNSIGNED_BYTE, 0) == 10) {
                         wrapper.cancel();
                     }
                     // Handler Spawners
-                    if (wrapper.get(Type.UNSIGNED_BYTE, 0) == 1) {
-                        CompoundTag tag = wrapper.get(Type.NAMED_COMPOUND_TAG, 0);
-                        EntityIdRewriter.toClientSpawner(tag, true);
+                    if (wrapper.get(Types.UNSIGNED_BYTE, 0) == 1) {
+                        CompoundTag tag = wrapper.get(Types.NAMED_COMPOUND_TAG, 0);
+                        EntityMappings1_11.toClientSpawner(tag, true);
                     }
                 });
             }
         });
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.OPEN_WINDOW, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.OPEN_SCREEN, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.STRING); // 1 - Window Type
-                map(Type.COMPONENT); // 2 - Title
-                map(Type.UNSIGNED_BYTE); // 3 - Slots
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.STRING); // 1 - Window Type
+                map(Types.COMPONENT); // 2 - Title
+                map(Types.UNSIGNED_BYTE); // 3 - Slots
 
                 handler(wrapper -> {
                     int entityId = -1;
                     // Passthrough Entity ID
-                    if (wrapper.get(Type.STRING, 0).equals("EntityHorse")) {
-                        entityId = wrapper.passthrough(Type.INT);
+                    if (wrapper.get(Types.STRING, 0).equals("EntityHorse")) {
+                        entityId = wrapper.passthrough(Types.INT);
                     }
 
                     // Track Inventory
-                    String inventory = wrapper.get(Type.STRING, 0);
+                    String inventory = wrapper.get(Types.STRING, 0);
                     WindowTracker windowTracker = wrapper.user().get(WindowTracker.class);
                     windowTracker.setInventory(inventory);
                     windowTracker.setEntityId(entityId);
 
                     // Change llama slotcount to the donkey one
                     if (isLlama(wrapper.user())) {
-                        wrapper.set(Type.UNSIGNED_BYTE, 1, (short) 17);
+                        wrapper.set(Types.UNSIGNED_BYTE, 1, (short) 17);
                     }
                 });
             }
         });
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.CLOSE_WINDOW, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.CONTAINER_CLOSE, new PacketHandlers() {
             @Override
             public void register() {
                 // Inventory tracking
@@ -253,7 +257,7 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
         });
 
 
-        protocol.registerServerbound(ServerboundPackets1_9_3.CLOSE_WINDOW, new PacketHandlers() {
+        protocol.registerServerbound(ServerboundPackets1_9_3.CONTAINER_CLOSE, new PacketHandlers() {
             @Override
             public void register() {
                 // Inventory tracking
@@ -266,7 +270,7 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
         });
 
         protocol.getEntityRewriter().filter().handler((event, meta) -> {
-            if (meta.metaType().type().equals(Type.ITEM1_8)) // Is Item
+            if (meta.dataType().type().equals(Types.ITEM1_8)) // Is Item
                 meta.setValue(handleItemToClient(event.user(), (Item) meta.getValue()));
         });
     }
@@ -276,7 +280,7 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
         // Handle spawner block entity (map to itself with custom handler)
         MappedLegacyBlockItem data = itemReplacements.computeIfAbsent(IdAndData.toRawData(52), s -> new MappedLegacyBlockItem(52));
         data.setBlockEntityHandler((b, tag) -> {
-            EntityIdRewriter.toClientSpawner(tag, true);
+            EntityMappings1_11.toClientSpawner(tag, true);
             return tag;
         });
 
@@ -296,7 +300,7 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
         if (tag == null) return item;
 
         // Rewrite spawn eggs (id checks are done in the method itself)
-        EntityIdRewriter.toClientItem(item, true);
+        EntityMappings1_11.toClientItem(item, true);
 
         enchantmentRewriter.handleToClient(item);
         return item;
@@ -311,7 +315,7 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
         if (tag == null) return item;
 
         // Rewrite spawn eggs (id checks are done in the method itself)
-        EntityIdRewriter.toServerItem(item, true);
+        EntityMappings1_11.toServerItem(item, true);
 
         enchantmentRewriter.handleToServer(item);
         return item;
@@ -320,9 +324,9 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
     private boolean isLlama(UserConnection user) {
         WindowTracker tracker = user.get(WindowTracker.class);
         if (tracker.getInventory() != null && tracker.getInventory().equals("EntityHorse")) {
-            EntityTracker entTracker = user.getEntityTracker(Protocol1_10To1_11.class);
+            EntityTracker entTracker = user.getEntityTracker(Protocol1_11To1_10.class);
             StoredEntityData entityData = entTracker.entityData(tracker.getEntityId());
-            return entityData != null && entityData.type().is(EntityTypes1_11.EntityType.LIAMA);
+            return entityData != null && entityData.type().is(EntityTypes1_11.EntityType.LLAMA);
         }
         return false;
     }
@@ -330,7 +334,7 @@ public class BlockItemPackets1_11 extends LegacyBlockItemRewriter<ClientboundPac
     private Optional<ChestedHorseStorage> getChestedHorse(UserConnection user) {
         WindowTracker tracker = user.get(WindowTracker.class);
         if (tracker.getInventory() != null && tracker.getInventory().equals("EntityHorse")) {
-            EntityTracker entTracker = user.getEntityTracker(Protocol1_10To1_11.class);
+            EntityTracker entTracker = user.getEntityTracker(Protocol1_11To1_10.class);
             StoredEntityData entityData = entTracker.entityData(tracker.getEntityId());
             if (entityData != null)
                 return Optional.of(entityData.get(ChestedHorseStorage.class));

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/rewriter/EntityPacketRewriter1_11.java

@@ -16,157 +16,156 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11.packets;
+package com.viaversion.viabackwards.protocol.v1_11to1_10.rewriter;
 
-import com.viaversion.viabackwards.api.entities.storage.EntityData;
 import com.viaversion.viabackwards.api.entities.storage.WrappedMetadata;
 import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.data.PotionSplashHandler;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.Protocol1_10To1_11;
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.storage.ChestedHorseStorage;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.Protocol1_11To1_10;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.data.SplashPotionMappings1_10;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.storage.ChestedHorseStorage;
 import com.viaversion.viaversion.api.data.entity.StoredEntityData;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_11;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.minecraft.metadata.types.MetaType1_9;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_9;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.version.Types1_9;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
 import java.util.List;
 
-public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_9_3, Protocol1_10To1_11> {
+public class EntityPacketRewriter1_11 extends LegacyEntityRewriter<ClientboundPackets1_9_3, Protocol1_11To1_10> {
 
-    public EntityPackets1_11(Protocol1_10To1_11 protocol) {
+    public EntityPacketRewriter1_11(Protocol1_11To1_10 protocol) {
         super(protocol);
     }
 
     @Override
     protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_9_3.EFFECT, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.LEVEL_EVENT, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT);
-                map(Type.POSITION1_8);
-                map(Type.INT);
+                map(Types.INT);
+                map(Types.BLOCK_POSITION1_8);
+                map(Types.INT);
                 handler(wrapper -> {
-                    int type = wrapper.get(Type.INT, 0);
+                    int type = wrapper.get(Types.INT, 0);
                     if (type == 2002 || type == 2007) {
                         // 2007 potion id doesn't exist in 1.10
                         if (type == 2007) {
-                            wrapper.set(Type.INT, 0, 2002);
+                            wrapper.set(Types.INT, 0, 2002);
                         }
 
-                        int mappedData = PotionSplashHandler.getOldData(wrapper.get(Type.INT, 1));
+                        int mappedData = SplashPotionMappings1_10.getOldData(wrapper.get(Types.INT, 1));
                         if (mappedData != -1) {
-                            wrapper.set(Type.INT, 1, mappedData);
+                            wrapper.set(Types.INT, 1, mappedData);
                         }
                     }
                 });
             }
         });
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_ENTITY, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_ENTITY, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.BYTE); // 2 - Type
-                map(Type.DOUBLE); // 3 - x
-                map(Type.DOUBLE); // 4 - y
-                map(Type.DOUBLE); // 5 - z
-                map(Type.BYTE); // 6 - Pitch
-                map(Type.BYTE); // 7 - Yaw
-                map(Type.INT); // 8 - data
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.BYTE); // 2 - Type
+                map(Types.DOUBLE); // 3 - x
+                map(Types.DOUBLE); // 4 - y
+                map(Types.DOUBLE); // 5 - z
+                map(Types.BYTE); // 6 - Pitch
+                map(Types.BYTE); // 7 - Yaw
+                map(Types.INT); // 8 - data
 
                 // Track Entity
                 handler(getObjectTrackerHandler());
-                handler(getObjectRewriter(id -> EntityTypes1_11.ObjectType.findById(id).orElse(null)));
+                handler(getObjectRewriter(EntityTypes1_11.ObjectType::findById));
 
                 handler(protocol.getItemRewriter().getFallingBlockHandler());
             }
         });
 
-        registerTracker(ClientboundPackets1_9_3.SPAWN_EXPERIENCE_ORB, EntityTypes1_11.EntityType.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_9_3.SPAWN_GLOBAL_ENTITY, EntityTypes1_11.EntityType.WEATHER);
+        registerTracker(ClientboundPackets1_9_3.ADD_EXPERIENCE_ORB, EntityTypes1_11.EntityType.EXPERIENCE_ORB);
+        registerTracker(ClientboundPackets1_9_3.ADD_GLOBAL_ENTITY, EntityTypes1_11.EntityType.LIGHTNING_BOLT);
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_MOB, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_MOB, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.VAR_INT, Type.UNSIGNED_BYTE); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_9.METADATA_LIST); // 12 - Metadata
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.VAR_INT, Types.UNSIGNED_BYTE); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Yaw
+                map(Types.BYTE); // 7 - Pitch
+                map(Types.BYTE); // 8 - Head Pitch
+                map(Types.SHORT); // 9 - Velocity X
+                map(Types.SHORT); // 10 - Velocity Y
+                map(Types.SHORT); // 11 - Velocity Z
+                map(Types1_9.ENTITY_DATA_LIST); // 12 - Metadata
 
                 // Track entity
-                handler(getTrackerHandler(Type.UNSIGNED_BYTE, 0));
+                handler(getTrackerHandler(Types.UNSIGNED_BYTE, 0));
 
                 // Rewrite entity type / metadata
-                handler(getMobSpawnRewriter(Types1_9.METADATA_LIST));
+                handler(getMobSpawnRewriter(Types1_9.ENTITY_DATA_LIST));
 
                 // Sub 1.11 clients will error if the list is empty
                 handler(wrapper -> {
-                    List<Metadata> metadata = wrapper.get(Types1_9.METADATA_LIST, 0);
+                    List<EntityData> metadata = wrapper.get(Types1_9.ENTITY_DATA_LIST, 0);
                     if (metadata.isEmpty()) {
-                        metadata.add(new Metadata(0, MetaType1_9.Byte, (byte) 0));
+                        metadata.add(new EntityData(0, EntityDataTypes1_9.BYTE, (byte) 0));
                     }
                 });
             }
         });
 
-        registerTracker(ClientboundPackets1_9_3.SPAWN_PAINTING, EntityTypes1_11.EntityType.PAINTING);
-        registerJoinGame(ClientboundPackets1_9_3.JOIN_GAME, EntityTypes1_11.EntityType.PLAYER);
+        registerTracker(ClientboundPackets1_9_3.ADD_PAINTING, EntityTypes1_11.EntityType.PAINTING);
+        registerJoinGame(ClientboundPackets1_9_3.LOGIN, EntityTypes1_11.EntityType.PLAYER);
         registerRespawn(ClientboundPackets1_9_3.RESPAWN);
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.SPAWN_PLAYER, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.ADD_PLAYER, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                map(Types1_9.METADATA_LIST); // 7 - Metadata list
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Player UUID
+                map(Types.DOUBLE); // 2 - X
+                map(Types.DOUBLE); // 3 - Y
+                map(Types.DOUBLE); // 4 - Z
+                map(Types.BYTE); // 5 - Yaw
+                map(Types.BYTE); // 6 - Pitch
+                map(Types1_9.ENTITY_DATA_LIST); // 7 - Metadata list
 
-                handler(getTrackerAndMetaHandler(Types1_9.METADATA_LIST, EntityTypes1_11.EntityType.PLAYER));
+                handler(getTrackerAndMetaHandler(Types1_9.ENTITY_DATA_LIST, EntityTypes1_11.EntityType.PLAYER));
                 handler(wrapper -> {
                     // Sub 1.11 clients will cry if the list is empty
-                    List<Metadata> metadata = wrapper.get(Types1_9.METADATA_LIST, 0);
+                    List<EntityData> metadata = wrapper.get(Types1_9.ENTITY_DATA_LIST, 0);
                     if (metadata.isEmpty()) {
-                        metadata.add(new Metadata(0, MetaType1_9.Byte, (byte) 0));
+                        metadata.add(new EntityData(0, EntityDataTypes1_9.BYTE, (byte) 0));
                     }
                 });
             }
         });
 
-        registerRemoveEntities(ClientboundPackets1_9_3.DESTROY_ENTITIES);
-        registerMetadataRewriter(ClientboundPackets1_9_3.ENTITY_METADATA, Types1_9.METADATA_LIST);
+        registerRemoveEntities(ClientboundPackets1_9_3.REMOVE_ENTITIES);
+        registerSetEntityData(ClientboundPackets1_9_3.SET_ENTITY_DATA, Types1_9.ENTITY_DATA_LIST);
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.ENTITY_STATUS, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.ENTITY_EVENT, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT); // 0 - Entity ID
-                map(Type.BYTE); // 1 - Entity Status
+                map(Types.INT); // 0 - Entity ID
+                map(Types.BYTE); // 1 - Entity Status
 
                 handler(wrapper -> {
-                    byte b = wrapper.get(Type.BYTE, 0);
+                    byte b = wrapper.get(Types.BYTE, 0);
 
                     if (b == 35) {
                         wrapper.clearPacket();
                         wrapper.setPacketType(ClientboundPackets1_9_3.GAME_EVENT);
-                        wrapper.write(Type.UNSIGNED_BYTE, (short) 10); // Play Elder Guardian animation
-                        wrapper.write(Type.FLOAT, 0F);
+                        wrapper.write(Types.UNSIGNED_BYTE, (short) 10); // Play Elder Guardian animation
+                        wrapper.write(Types.FLOAT, 0F);
                     }
                 });
             }
@@ -190,16 +189,16 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
         mapEntityTypeWithData(EntityTypes1_11.EntityType.SKELETON_HORSE, EntityTypes1_11.EntityType.HORSE).spawnMetadata(storage -> storage.add(getHorseMetaType(4)));
         mapEntityTypeWithData(EntityTypes1_11.EntityType.ZOMBIE_HORSE, EntityTypes1_11.EntityType.HORSE).spawnMetadata(storage -> storage.add(getHorseMetaType(3)));
         // New mobs
-        mapEntityTypeWithData(EntityTypes1_11.EntityType.EVOCATION_FANGS, EntityTypes1_11.EntityType.SHULKER);
-        mapEntityTypeWithData(EntityTypes1_11.EntityType.EVOCATION_ILLAGER, EntityTypes1_11.EntityType.VILLAGER).plainName();
+        mapEntityTypeWithData(EntityTypes1_11.EntityType.EVOKER_FANGS, EntityTypes1_11.EntityType.SHULKER);
+        mapEntityTypeWithData(EntityTypes1_11.EntityType.EVOKER, EntityTypes1_11.EntityType.VILLAGER).plainName();
         mapEntityTypeWithData(EntityTypes1_11.EntityType.VEX, EntityTypes1_11.EntityType.BAT).plainName();
-        mapEntityTypeWithData(EntityTypes1_11.EntityType.VINDICATION_ILLAGER, EntityTypes1_11.EntityType.VILLAGER).plainName().spawnMetadata(storage -> storage.add(new Metadata(13, MetaType1_9.VarInt, 4))); // Base Profession
-        mapEntityTypeWithData(EntityTypes1_11.EntityType.LIAMA, EntityTypes1_11.EntityType.HORSE).plainName().spawnMetadata(storage -> storage.add(getHorseMetaType(1)));
-        mapEntityTypeWithData(EntityTypes1_11.EntityType.LIAMA_SPIT, EntityTypes1_11.EntityType.SNOWBALL);
+        mapEntityTypeWithData(EntityTypes1_11.EntityType.VINDICATOR, EntityTypes1_11.EntityType.VILLAGER).plainName().spawnMetadata(storage -> storage.add(new EntityData(13, EntityDataTypes1_9.VAR_INT, 4))); // Base Profession
+        mapEntityTypeWithData(EntityTypes1_11.EntityType.LLAMA, EntityTypes1_11.EntityType.HORSE).plainName().spawnMetadata(storage -> storage.add(getHorseMetaType(1)));
+        mapEntityTypeWithData(EntityTypes1_11.EntityType.LLAMA_SPIT, EntityTypes1_11.EntityType.SNOWBALL);
 
-        mapObjectType(EntityTypes1_11.ObjectType.LIAMA_SPIT, EntityTypes1_11.ObjectType.SNOWBALL, -1);
+        mapObjectType(EntityTypes1_11.ObjectType.LLAMA_SPIT, EntityTypes1_11.ObjectType.SNOWBALL, -1);
         // Replace with endertorchthingies
-        mapObjectType(EntityTypes1_11.ObjectType.EVOCATION_FANGS, EntityTypes1_11.ObjectType.FALLING_BLOCK, 198 | 1 << 12);
+        mapObjectType(EntityTypes1_11.ObjectType.EVOKER_FANGS, EntityTypes1_11.ObjectType.FALLING_BLOCK, 198 | 1 << 12);
 
         // Handle ElderGuardian & target metadata
         filter().type(EntityTypes1_11.EntityType.GUARDIAN).index(12).handler((event, meta) -> {
@@ -210,7 +209,7 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
                 bitmask |= 0x04;
             }
 
-            meta.setTypeAndValue(MetaType1_9.Byte, (byte) bitmask);
+            meta.setTypeAndValue(EntityDataTypes1_9.BYTE, (byte) bitmask);
         });
 
         // Handle skeleton swing
@@ -221,27 +220,21 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
          */
         filter().type(EntityTypes1_11.EntityType.ZOMBIE).handler((event, meta) -> {
             switch (meta.id()) {
-                case 13:
-                    event.cancel();
-                    return;
-                case 14:
-                    event.setIndex(15);
-                    break;
-                case 15:
-                    event.setIndex(14);
-                    break;
-                // Profession
-                case 16:
+                case 13 -> event.cancel();
+                case 14 -> event.setIndex(15);
+                case 15 -> event.setIndex(14);
+                case 16 -> {
+                    // Profession
                     event.setIndex(13);
                     meta.setValue(1 + (int) meta.getValue());
-                    break;
+                }
             }
         });
 
         // Handle Evocation Illager
-        filter().type(EntityTypes1_11.EntityType.EVOCATION_ILLAGER).index(12).handler((event, meta) -> {
+        filter().type(EntityTypes1_11.EntityType.EVOKER).index(12).handler((event, meta) -> {
             event.setIndex(13);
-            meta.setTypeAndValue(MetaType1_9.VarInt, ((Byte) meta.getValue()).intValue()); // Change the profession for the states
+            meta.setTypeAndValue(EntityDataTypes1_9.VAR_INT, ((Byte) meta.getValue()).intValue()); // Change the profession for the states
         });
 
         // Handle Vex (Remove this field completely since the position is not updated correctly when idling for bats. Sad ):
@@ -250,9 +243,9 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
         });
 
         // Handle VindicationIllager
-        filter().type(EntityTypes1_11.EntityType.VINDICATION_ILLAGER).index(12).handler((event, meta) -> {
+        filter().type(EntityTypes1_11.EntityType.VINDICATOR).index(12).handler((event, meta) -> {
             event.setIndex(13);
-            meta.setTypeAndValue(MetaType1_9.VarInt, ((Number) meta.getValue()).intValue() == 1 ? 2 : 4);
+            meta.setTypeAndValue(EntityDataTypes1_9.VAR_INT, ((Number) meta.getValue()).intValue() == 1 ? 2 : 4);
         });
 
         /*
@@ -290,25 +283,25 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
         });
 
         // Get rid of Liama metadata
-        filter().type(EntityTypes1_11.EntityType.LIAMA).handler((event, meta) -> {
+        filter().type(EntityTypes1_11.EntityType.LLAMA).handler((event, meta) -> {
             StoredEntityData data = storedEntityData(event);
             ChestedHorseStorage storage = data.get(ChestedHorseStorage.class);
 
             int index = event.index();
             // Store them for later (:
             switch (index) {
-                case 16:
+                case 16 -> {
                     storage.setLiamaStrength((int) meta.getValue());
                     event.cancel();
-                    break;
-                case 17:
+                }
+                case 17 -> {
                     storage.setLiamaCarpetColor((int) meta.getValue());
                     event.cancel();
-                    break;
-                case 18:
+                }
+                case 18 -> {
                     storage.setLiamaVariant((int) meta.getValue());
                     event.cancel();
-                    break;
+                }
             }
         });
 
@@ -332,8 +325,8 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
         2 - Stray
      */
 
-    private Metadata getSkeletonTypeMeta(int type) {
-        return new Metadata(12, MetaType1_9.VarInt, type);
+    private EntityData getSkeletonTypeMeta(int type) {
+        return new EntityData(12, EntityDataTypes1_9.VAR_INT, type);
     }
 
     /*
@@ -341,12 +334,12 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
         1-5 - Villager with profession
         6 - Husk
      */
-    private Metadata getZombieTypeMeta(int type) {
-        return new Metadata(13, MetaType1_9.VarInt, type);
+    private EntityData getZombieTypeMeta(int type) {
+        return new EntityData(13, EntityDataTypes1_9.VAR_INT, type);
     }
 
     private void handleZombieType(WrappedMetadata storage, int type) {
-        Metadata meta = storage.get(13);
+        EntityData meta = storage.get(13);
         if (meta == null) {
             storage.add(getZombieTypeMeta(type));
         }
@@ -359,8 +352,8 @@ public class EntityPackets1_11 extends LegacyEntityRewriter<ClientboundPackets1_
         Zombie horse 3
         Skeleton horse 4
     */
-    private Metadata getHorseMetaType(int type) {
-        return new Metadata(14, MetaType1_9.VarInt, type);
+    private EntityData getHorseMetaType(int type) {
+        return new EntityData(14, EntityDataTypes1_9.VAR_INT, type);
     }
 
     @Override

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/rewriter/PlayerPacketRewriter1_11.java

@@ -16,77 +16,77 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11.packets;
+package com.viaversion.viabackwards.protocol.v1_11to1_10.rewriter;
 
-import com.viaversion.viabackwards.protocol.protocol1_10to1_11.Protocol1_10To1_11;
+import com.viaversion.viabackwards.protocol.v1_11to1_10.Protocol1_11To1_10;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.protocol.remapper.ValueTransformer;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.libs.gson.JsonObject;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 import com.viaversion.viaversion.util.ComponentUtil;
 
-public class PlayerPackets1_11 {
-    private static final ValueTransformer<Short, Float> TO_NEW_FLOAT = new ValueTransformer<Short, Float>(Type.FLOAT) {
+public class PlayerPacketRewriter1_11 {
+    private static final ValueTransformer<Short, Float> TO_NEW_FLOAT = new ValueTransformer<>(Types.FLOAT) {
         @Override
-        public Float transform(PacketWrapper wrapper, Short inputValue) throws Exception {
+        public Float transform(PacketWrapper wrapper, Short inputValue) {
             return inputValue / 16f;
         }
     };
 
-    public static void register(Protocol1_10To1_11 protocol) {
-        protocol.registerClientbound(ClientboundPackets1_9_3.TITLE, new PacketHandlers() {
+    public static void register(Protocol1_11To1_10 protocol) {
+        protocol.registerClientbound(ClientboundPackets1_9_3.SET_TITLES, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Action
+                map(Types.VAR_INT); // 0 - Action
 
                 handler(wrapper -> {
-                    int action = wrapper.get(Type.VAR_INT, 0);
+                    int action = wrapper.get(Types.VAR_INT, 0);
 
                     if (action == 2) { // Handle the new ActionBar
-                        JsonElement message = wrapper.read(Type.COMPONENT);
+                        JsonElement message = wrapper.read(Types.COMPONENT);
 
                         wrapper.clearPacket();
-                        wrapper.setPacketType(ClientboundPackets1_9_3.CHAT_MESSAGE);
+                        wrapper.setPacketType(ClientboundPackets1_9_3.CHAT);
 
                         // https://bugs.mojang.com/browse/MC-119145
                         String legacy = ComponentUtil.jsonToLegacy(message);
                         message = new JsonObject();
                         message.getAsJsonObject().addProperty("text", legacy);
 
-                        wrapper.write(Type.COMPONENT, message);
-                        wrapper.write(Type.BYTE, (byte) 2);
+                        wrapper.write(Types.COMPONENT, message);
+                        wrapper.write(Types.BYTE, (byte) 2);
                     } else if (action > 2) {
-                        wrapper.set(Type.VAR_INT, 0, action - 1); // Move everything one position down
+                        wrapper.set(Types.VAR_INT, 0, action - 1); // Move everything one position down
                     }
                 });
             }
         });
 
-        protocol.registerClientbound(ClientboundPackets1_9_3.COLLECT_ITEM, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_9_3.TAKE_ITEM_ENTITY, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Collected entity id
-                map(Type.VAR_INT); // 1 - Collector entity id
+                map(Types.VAR_INT); // 0 - Collected entity id
+                map(Types.VAR_INT); // 1 - Collector entity id
 
-                handler(wrapper -> wrapper.read(Type.VAR_INT)); // Ignore item pickup count
+                handler(wrapper -> wrapper.read(Types.VAR_INT)); // Ignore item pickup count
             }
         });
 
 
-        protocol.registerServerbound(ServerboundPackets1_9_3.PLAYER_BLOCK_PLACEMENT, new PacketHandlers() {
+        protocol.registerServerbound(ServerboundPackets1_9_3.USE_ITEM_ON, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.POSITION1_8); // 0 - Location
-                map(Type.VAR_INT); // 1 - Face
-                map(Type.VAR_INT); // 2 - Hand
+                map(Types.BLOCK_POSITION1_8); // 0 - Location
+                map(Types.VAR_INT); // 1 - Face
+                map(Types.VAR_INT); // 2 - Hand
 
-                map(Type.UNSIGNED_BYTE, TO_NEW_FLOAT);
-                map(Type.UNSIGNED_BYTE, TO_NEW_FLOAT);
-                map(Type.UNSIGNED_BYTE, TO_NEW_FLOAT);
+                map(Types.UNSIGNED_BYTE, TO_NEW_FLOAT);
+                map(Types.UNSIGNED_BYTE, TO_NEW_FLOAT);
+                map(Types.UNSIGNED_BYTE, TO_NEW_FLOAT);
             }
         });
     }

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/storage/ChestedHorseStorage.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11.storage;
+package com.viaversion.viabackwards.protocol.v1_11to1_10.storage;
 
 public class ChestedHorseStorage {
     private boolean chested;

common/src/main/java/com/viaversion/viabackwards/protocol/v1_11to1_10/storage/WindowTracker.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_10to1_11.storage;
+package com.viaversion.viabackwards.protocol.v1_11to1_10.storage;
 
 import com.viaversion.viaversion.api.connection.StorableObject;
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12_1to1_12/Protocol1_12_1To1_12.java

@@ -15,23 +15,23 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_12to1_12_1;
+package com.viaversion.viabackwards.protocol.v1_12_1to1_12;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ClientboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ServerboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ServerboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ServerboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_12to1_12_1.packet.ClientboundPackets1_12_1;
+import com.viaversion.viaversion.protocols.v1_12to1_12_1.packet.ServerboundPackets1_12_1;
 
-public class Protocol1_12To1_12_1 extends BackwardsProtocol<ClientboundPackets1_12_1, ClientboundPackets1_12, ServerboundPackets1_12_1, ServerboundPackets1_12> {
+public class Protocol1_12_1To1_12 extends BackwardsProtocol<ClientboundPackets1_12_1, ClientboundPackets1_12, ServerboundPackets1_12_1, ServerboundPackets1_12> {
 
-    public Protocol1_12To1_12_1() {
+    public Protocol1_12_1To1_12() {
         super(ClientboundPackets1_12_1.class, ClientboundPackets1_12.class, ServerboundPackets1_12_1.class, ServerboundPackets1_12.class);
     }
 
     @Override
     protected void registerPackets() {
-        cancelClientbound(ClientboundPackets1_12_1.CRAFT_RECIPE_RESPONSE);
-        cancelServerbound(ServerboundPackets1_12.PREPARE_CRAFTING_GRID);
+        cancelClientbound(ClientboundPackets1_12_1.PLACE_GHOST_RECIPE);
+        cancelServerbound(ServerboundPackets1_12.CRAFTING_RECIPE_PLACEMENT);
     }
 }

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12_2to1_12_1/Protocol1_12_2To1_12_1.java

@@ -16,19 +16,19 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_1to1_12_2;
+package com.viaversion.viabackwards.protocol.v1_12_2to1_12_1;
 
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.protocol.protocol1_12_1to1_12_2.storage.KeepAliveTracker;
+import com.viaversion.viabackwards.protocol.v1_12_2to1_12_1.storage.KeepAliveTracker;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ClientboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ServerboundPackets1_12_1;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_12to1_12_1.packet.ClientboundPackets1_12_1;
+import com.viaversion.viaversion.protocols.v1_12to1_12_1.packet.ServerboundPackets1_12_1;
 
-public class Protocol1_12_1To1_12_2 extends BackwardsProtocol<ClientboundPackets1_12_1, ClientboundPackets1_12_1, ServerboundPackets1_12_1, ServerboundPackets1_12_1> {
+public class Protocol1_12_2To1_12_1 extends BackwardsProtocol<ClientboundPackets1_12_1, ClientboundPackets1_12_1, ServerboundPackets1_12_1, ServerboundPackets1_12_1> {
 
-    public Protocol1_12_1To1_12_2() {
+    public Protocol1_12_2To1_12_1() {
         super(ClientboundPackets1_12_1.class, ClientboundPackets1_12_1.class, ServerboundPackets1_12_1.class, ServerboundPackets1_12_1.class);
     }
 
@@ -38,9 +38,9 @@ public class Protocol1_12_1To1_12_2 extends BackwardsProtocol<ClientboundPackets
             @Override
             public void register() {
                 handler(packetWrapper -> {
-                    Long keepAlive = packetWrapper.read(Type.LONG);
+                    Long keepAlive = packetWrapper.read(Types.LONG);
                     packetWrapper.user().get(KeepAliveTracker.class).setKeepAlive(keepAlive);
-                    packetWrapper.write(Type.VAR_INT, keepAlive.hashCode());
+                    packetWrapper.write(Types.VAR_INT, keepAlive.hashCode());
                 });
             }
         });
@@ -49,13 +49,13 @@ public class Protocol1_12_1To1_12_2 extends BackwardsProtocol<ClientboundPackets
             @Override
             public void register() {
                 handler(packetWrapper -> {
-                    int keepAlive = packetWrapper.read(Type.VAR_INT);
+                    int keepAlive = packetWrapper.read(Types.VAR_INT);
                     long realKeepAlive = packetWrapper.user().get(KeepAliveTracker.class).getKeepAlive();
                     if (keepAlive != Long.hashCode(realKeepAlive)) {
                         packetWrapper.cancel(); // Wrong data, cancel packet
                         return;
                     }
-                    packetWrapper.write(Type.LONG, realKeepAlive);
+                    packetWrapper.write(Types.LONG, realKeepAlive);
                     // Reset KeepAliveTracker (to prevent sending same valid value in a row causing a timeout)
                     packetWrapper.user().get(KeepAliveTracker.class).setKeepAlive(Integer.MAX_VALUE);
                 });

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12_2to1_12_1/storage/KeepAliveTracker.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_1to1_12_2.storage;
+package com.viaversion.viabackwards.protocol.v1_12_2to1_12_1.storage;
 
 import com.viaversion.viaversion.api.connection.StorableObject;
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/Protocol1_12To1_11_1.java

@@ -0,0 +1,101 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1;
+
+import com.viaversion.viabackwards.api.BackwardsProtocol;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.storage.ShoulderTracker;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter.BlockItemPacketRewriter1_12;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter.ComponentRewriter1_12;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter.EntityPacketRewriter1_12;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter.SoundPacketRewriter1_12;
+import com.viaversion.viaversion.api.connection.UserConnection;
+import com.viaversion.viaversion.api.minecraft.ClientWorld;
+import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_12;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.data.entity.EntityTrackerBase;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ServerboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
+import com.viaversion.viaversion.util.ComponentUtil;
+import com.viaversion.viaversion.util.SerializerVersion;
+
+public class Protocol1_12To1_11_1 extends BackwardsProtocol<ClientboundPackets1_12, ClientboundPackets1_9_3, ServerboundPackets1_12, ServerboundPackets1_9_3> {
+
+    private static final BackwardsMappingData MAPPINGS = new BackwardsMappingData("1.12", "1.11");
+    private final EntityPacketRewriter1_12 entityRewriter = new EntityPacketRewriter1_12(this);
+    private final BlockItemPacketRewriter1_12 itemRewriter = new BlockItemPacketRewriter1_12(this);
+
+    public Protocol1_12To1_11_1() {
+        super(ClientboundPackets1_12.class, ClientboundPackets1_9_3.class, ServerboundPackets1_12.class, ServerboundPackets1_9_3.class);
+    }
+
+    @Override
+    protected void registerPackets() {
+        itemRewriter.register();
+        entityRewriter.register();
+        new SoundPacketRewriter1_12(this).register();
+        new ComponentRewriter1_12(this).register();
+
+        registerClientbound(ClientboundPackets1_12.SET_TITLES, wrapper -> {
+            int action = wrapper.passthrough(Types.VAR_INT);
+            if (action >= 0 && action <= 2) {
+                // Should be done globally in the component rewriter, but /shrug for now
+                String component = wrapper.read(Types.COMPONENT).toString();
+                wrapper.write(Types.COMPONENT, ComponentUtil.convertJsonOrEmpty(component, SerializerVersion.V1_12, SerializerVersion.V1_9));
+            }
+        });
+
+        cancelClientbound(ClientboundPackets1_12.UPDATE_ADVANCEMENTS);
+        cancelClientbound(ClientboundPackets1_12.RECIPE);
+        cancelClientbound(ClientboundPackets1_12.SELECT_ADVANCEMENTS_TAB);
+    }
+
+    @Override
+    public void init(UserConnection user) {
+        if (!user.has(ClientWorld.class)) {
+            user.put(new ClientWorld());
+        }
+
+        user.addEntityTracker(this.getClass(), new EntityTrackerBase(user, EntityTypes1_12.EntityType.PLAYER));
+
+        user.put(new ShoulderTracker(user));
+    }
+
+    @Override
+    public BackwardsMappingData getMappingData() {
+        return MAPPINGS;
+    }
+
+    @Override
+    public EntityPacketRewriter1_12 getEntityRewriter() {
+        return entityRewriter;
+    }
+
+    @Override
+    public BlockItemPacketRewriter1_12 getItemRewriter() {
+        return itemRewriter;
+    }
+
+    @Override
+    public boolean hasMappingDataToLoad() {
+        return true;
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/data/AdvancementTranslations1_11_1.java

@@ -16,12 +16,12 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.data;
 
 import java.util.HashMap;
 import java.util.Map;
 
-public class AdvancementTranslations {
+public class AdvancementTranslations1_11_1 {
     private static final Map<String, String> advancements = new HashMap<>();
 
     static {

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/data/BlockColors1_11_1.java

@@ -16,9 +16,9 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.data;
 
-public class BlockColors {
+public class BlockColors1_11_1 {
     private static final String[] COLORS = new String[16];
 
     static {

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/data/MapColorMappings1_11_1.java

@@ -15,12 +15,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.data;
 
 import com.viaversion.viaversion.libs.fastutil.ints.Int2IntMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2IntOpenHashMap;
 
-public class MapColorMapping {
+public class MapColorMappings1_11_1 {
     private static final Int2IntMap MAPPING = new Int2IntOpenHashMap(64, 0.99F);
 
     static {

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/rewriter/BlockItemPacketRewriter1_12.java

@@ -16,145 +16,144 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter;
 
 import com.viaversion.viabackwards.api.rewriters.LegacyBlockItemRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data.MapColorMapping;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.data.MapColorMappings1_11_1;
 import com.viaversion.viaversion.api.connection.UserConnection;
-import com.viaversion.viaversion.api.minecraft.BlockChangeRecord;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
 import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_9_3;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.IntArrayTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.LongArrayTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ServerboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.IntArrayTag;
+import com.viaversion.nbt.tag.LongArrayTag;
+import com.viaversion.nbt.tag.Tag;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ServerboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ServerboundPackets1_9_3;
 import java.util.Iterator;
 import java.util.Map;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public class BlockItemPackets1_12 extends LegacyBlockItemRewriter<ClientboundPackets1_12, ServerboundPackets1_9_3, Protocol1_11_1To1_12> {
+public class BlockItemPacketRewriter1_12 extends LegacyBlockItemRewriter<ClientboundPackets1_12, ServerboundPackets1_9_3, Protocol1_12To1_11_1> {
 
-    public BlockItemPackets1_12(Protocol1_11_1To1_12 protocol) {
+    public BlockItemPacketRewriter1_12(Protocol1_12To1_11_1 protocol) {
         super(protocol, "1.12");
     }
 
     @Override
     protected void registerPackets() {
-        registerBlockChange(ClientboundPackets1_12.BLOCK_CHANGE);
-        registerMultiBlockChange(ClientboundPackets1_12.MULTI_BLOCK_CHANGE);
+        registerBlockChange(ClientboundPackets1_12.BLOCK_UPDATE);
+        registerMultiBlockChange(ClientboundPackets1_12.CHUNK_BLOCKS_UPDATE);
 
-        protocol.registerClientbound(ClientboundPackets1_12.MAP_DATA, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.MAP_ITEM_DATA, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT);
-                map(Type.BYTE);
-                map(Type.BOOLEAN);
+                map(Types.VAR_INT);
+                map(Types.BYTE);
+                map(Types.BOOLEAN);
                 handler(wrapper -> {
-                    int count = wrapper.passthrough(Type.VAR_INT);
+                    int count = wrapper.passthrough(Types.VAR_INT);
                     for (int i = 0; i < count * 3; i++) {
-                        wrapper.passthrough(Type.BYTE);
+                        wrapper.passthrough(Types.BYTE);
                     }
                 });
                 handler(wrapper -> {
-                    short columns = wrapper.passthrough(Type.UNSIGNED_BYTE);
+                    short columns = wrapper.passthrough(Types.UNSIGNED_BYTE);
                     if (columns <= 0) return;
 
-                    wrapper.passthrough(Type.UNSIGNED_BYTE); // Rows
-                    wrapper.passthrough(Type.UNSIGNED_BYTE); // X
-                    wrapper.passthrough(Type.UNSIGNED_BYTE); // Z
-                    byte[] data = wrapper.read(Type.BYTE_ARRAY_PRIMITIVE);
+                    wrapper.passthrough(Types.UNSIGNED_BYTE); // Rows
+                    wrapper.passthrough(Types.UNSIGNED_BYTE); // X
+                    wrapper.passthrough(Types.UNSIGNED_BYTE); // Z
+                    byte[] data = wrapper.read(Types.BYTE_ARRAY_PRIMITIVE);
                     for (int i = 0; i < data.length; i++) {
                         short color = (short) (data[i] & 0xFF);
                         if (color > 143) {
-                            color = (short) MapColorMapping.getNearestOldColor(color);
+                            color = (short) MapColorMappings1_11_1.getNearestOldColor(color);
                             data[i] = (byte) color;
                         }
                     }
-                    wrapper.write(Type.BYTE_ARRAY_PRIMITIVE, data);
+                    wrapper.write(Types.BYTE_ARRAY_PRIMITIVE, data);
                 });
             }
         });
 
-        registerSetSlot(ClientboundPackets1_12.SET_SLOT);
-        registerWindowItems(ClientboundPackets1_12.WINDOW_ITEMS);
-        registerEntityEquipment(ClientboundPackets1_12.ENTITY_EQUIPMENT);
+        registerSetSlot(ClientboundPackets1_12.CONTAINER_SET_SLOT);
+        registerSetContent(ClientboundPackets1_12.CONTAINER_SET_CONTENT);
+        registerSetEquippedItem(ClientboundPackets1_12.SET_EQUIPPED_ITEM);
 
         // Plugin message Packet -> Trading
-        protocol.registerClientbound(ClientboundPackets1_12.PLUGIN_MESSAGE, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.CUSTOM_PAYLOAD, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.STRING); // 0 - Channel
+                map(Types.STRING); // 0 - Channel
 
                 handler(wrapper -> {
-                    if (wrapper.get(Type.STRING, 0).equals("MC|TrList")) {
-                        wrapper.passthrough(Type.INT); // Passthrough Window ID
+                    if (wrapper.get(Types.STRING, 0).equals("MC|TrList")) {
+                        wrapper.passthrough(Types.INT); // Passthrough Window ID
 
-                        int size = wrapper.passthrough(Type.UNSIGNED_BYTE);
+                        int size = wrapper.passthrough(Types.UNSIGNED_BYTE);
                         for (int i = 0; i < size; i++) {
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Input Item
-                            wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Output Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Input Item
+                            wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Output Item
 
-                            boolean secondItem = wrapper.passthrough(Type.BOOLEAN); // Has second item
+                            boolean secondItem = wrapper.passthrough(Types.BOOLEAN); // Has second item
                             if (secondItem)
-                                wrapper.write(Type.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Type.ITEM1_8))); // Second Item
+                                wrapper.write(Types.ITEM1_8, handleItemToClient(wrapper.user(), wrapper.read(Types.ITEM1_8))); // Second Item
 
-                            wrapper.passthrough(Type.BOOLEAN); // Trade disabled
-                            wrapper.passthrough(Type.INT); // Number of tools uses
-                            wrapper.passthrough(Type.INT); // Maximum number of trade uses
+                            wrapper.passthrough(Types.BOOLEAN); // Trade disabled
+                            wrapper.passthrough(Types.INT); // Number of tools uses
+                            wrapper.passthrough(Types.INT); // Maximum number of trade uses
                         }
                     }
                 });
             }
         });
 
-        protocol.registerServerbound(ServerboundPackets1_9_3.CLICK_WINDOW, new PacketHandlers() {
+        protocol.registerServerbound(ServerboundPackets1_9_3.CONTAINER_CLICK, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UNSIGNED_BYTE); // 0 - Window ID
-                map(Type.SHORT); // 1 - Slot
-                map(Type.BYTE); // 2 - Button
-                map(Type.SHORT); // 3 - Action number
-                map(Type.VAR_INT); // 4 - Mode
-                map(Type.ITEM1_8); // 5 - Clicked Item
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.SHORT); // 1 - Slot
+                map(Types.BYTE); // 2 - Button
+                map(Types.SHORT); // 3 - Action number
+                map(Types.VAR_INT); // 4 - Mode
+                map(Types.ITEM1_8); // 5 - Clicked Item
 
                 handler(wrapper -> {
-                    if (wrapper.get(Type.VAR_INT, 0) == 1) { // Shift click
+                    if (wrapper.get(Types.VAR_INT, 0) == 1) { // Shift click
                         // https://github.com/ViaVersion/ViaVersion/pull/754
                         // Previously clients grab the item from the clicked slot *before* it has
                         // been moved however now they grab the slot item *after* it has been moved
                         // and send that in the packet.
-                        wrapper.set(Type.ITEM1_8, 0, null); // Set null item (probably will work)
+                        wrapper.set(Types.ITEM1_8, 0, null); // Set null item (probably will work)
 
                         // Apologize (may happen in some cases, maybe if inventory is full?)
-                        PacketWrapper confirm = wrapper.create(ServerboundPackets1_12.WINDOW_CONFIRMATION);
-                        confirm.write(Type.UNSIGNED_BYTE, wrapper.get(Type.UNSIGNED_BYTE, 0));
-                        confirm.write(Type.SHORT, wrapper.get(Type.SHORT, 1));
-                        confirm.write(Type.BOOLEAN, false); // Success - not used
+                        PacketWrapper confirm = wrapper.create(ServerboundPackets1_12.CONTAINER_ACK);
+                        confirm.write(Types.UNSIGNED_BYTE, wrapper.get(Types.UNSIGNED_BYTE, 0));
+                        confirm.write(Types.SHORT, wrapper.get(Types.SHORT, 1));
+                        confirm.write(Types.BOOLEAN, false); // Success - not used
 
-                        wrapper.sendToServer(Protocol1_11_1To1_12.class);
+                        wrapper.sendToServer(Protocol1_12To1_11_1.class);
                         wrapper.cancel();
-                        confirm.sendToServer(Protocol1_11_1To1_12.class);
+                        confirm.sendToServer(Protocol1_12To1_11_1.class);
                         return;
 
                     }
-                    Item item = wrapper.get(Type.ITEM1_8, 0);
+                    Item item = wrapper.get(Types.ITEM1_8, 0);
                     handleItemToServer(wrapper.user(), item);
                 });
             }
         });
 
-        registerCreativeInvAction(ServerboundPackets1_9_3.CREATIVE_INVENTORY_ACTION);
+        registerSetCreativeModeSlot(ServerboundPackets1_9_3.SET_CREATIVE_MODE_SLOT);
 
-        protocol.registerClientbound(ClientboundPackets1_12.CHUNK_DATA, wrapper -> {
+        protocol.registerClientbound(ClientboundPackets1_12.LEVEL_CHUNK, wrapper -> {
             ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
 
             ChunkType1_9_3 type = ChunkType1_9_3.forEnvironment(clientWorld.getEnvironment()); // Use the 1.9.4 Chunk type since nothing changed.
@@ -166,31 +165,31 @@ public class BlockItemPackets1_12 extends LegacyBlockItemRewriter<ClientboundPac
         protocol.registerClientbound(ClientboundPackets1_12.BLOCK_ENTITY_DATA, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.POSITION1_8); // 0 - Position
-                map(Type.UNSIGNED_BYTE); // 1 - Action
-                map(Type.NAMED_COMPOUND_TAG); // 2 - NBT
+                map(Types.BLOCK_POSITION1_8); // 0 - Position
+                map(Types.UNSIGNED_BYTE); // 1 - Action
+                map(Types.NAMED_COMPOUND_TAG); // 2 - NBT
 
                 handler(wrapper -> {
                     // Remove bed color
-                    if (wrapper.get(Type.UNSIGNED_BYTE, 0) == 11)
+                    if (wrapper.get(Types.UNSIGNED_BYTE, 0) == 11)
                         wrapper.cancel();
                 });
             }
         });
 
         protocol.getEntityRewriter().filter().handler((event, meta) -> {
-            if (meta.metaType().type().equals(Type.ITEM1_8)) // Is Item
+            if (meta.dataType().type().equals(Types.ITEM1_8)) // Is Item
                 meta.setValue(handleItemToClient(event.user(), (Item) meta.getValue()));
         });
 
-        protocol.registerServerbound(ServerboundPackets1_9_3.CLIENT_STATUS, new PacketHandlers() {
+        protocol.registerServerbound(ServerboundPackets1_9_3.CLIENT_COMMAND, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // Action ID
+                map(Types.VAR_INT); // Action ID
 
                 handler(wrapper -> {
                     // Open Inventory
-                    if (wrapper.get(Type.VAR_INT, 0) == 2) {
+                    if (wrapper.get(Types.VAR_INT, 0) == 2) {
                         wrapper.cancel();
                     }
                 });
@@ -220,12 +219,12 @@ public class BlockItemPackets1_12 extends LegacyBlockItemRewriter<ClientboundPac
         boolean hasLongArrayTag = false;
         while (iterator.hasNext()) {
             Map.Entry<String, Tag> entry = iterator.next();
-            if (entry.getValue() instanceof CompoundTag) {
+            if (entry.getValue() instanceof CompoundTag tag) {
                 CompoundTag nestedBackupTag = new CompoundTag();
                 backupTag.put(entry.getKey(), nestedBackupTag);
-                hasLongArrayTag |= handleNbtToClient((CompoundTag) entry.getValue(), nestedBackupTag);
-            } else if (entry.getValue() instanceof LongArrayTag) {
-                backupTag.put(entry.getKey(), fromLongArrayTag((LongArrayTag) entry.getValue()));
+                hasLongArrayTag |= handleNbtToClient(tag, nestedBackupTag);
+            } else if (entry.getValue() instanceof LongArrayTag tag) {
+                backupTag.put(entry.getKey(), fromLongArrayTag(tag));
                 iterator.remove();
                 hasLongArrayTag = true;
             }
@@ -239,9 +238,8 @@ public class BlockItemPackets1_12 extends LegacyBlockItemRewriter<ClientboundPac
         super.handleItemToServer(connection, item);
 
         if (item.tag() != null) {
-            Tag tag = item.tag().remove("Via|LongArrayTags");
-            if (tag instanceof CompoundTag) {
-                handleNbtToServer(item.tag(), (CompoundTag) tag);
+            if (item.tag().remove("Via|LongArrayTags") instanceof CompoundTag tag) {
+                handleNbtToServer(item.tag(), tag);
             }
         }
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/rewriter/ComponentRewriter1_12.java

@@ -16,21 +16,21 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter;
 
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data.AdvancementTranslations;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.data.AdvancementTranslations1_11_1;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.rewriter.RewriterBase;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.libs.gson.JsonObject;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
 import com.viaversion.viaversion.rewriter.ComponentRewriter;
 
-public class ChatPackets1_12 extends RewriterBase<Protocol1_11_1To1_12> {
+public class ComponentRewriter1_12 extends RewriterBase<Protocol1_12To1_11_1> {
 
-    public static final ComponentRewriter<ClientboundPackets1_12> COMPONENT_REWRITER = new ComponentRewriter<ClientboundPackets1_12>(null, ComponentRewriter.ReadType.JSON) {
+    public static final ComponentRewriter<ClientboundPackets1_12> COMPONENT_REWRITER = new ComponentRewriter<>(null, ComponentRewriter.ReadType.JSON) {
         @Override
         public void processText(UserConnection connection, JsonElement element) {
             super.processText(connection, element);
@@ -50,21 +50,21 @@ public class ChatPackets1_12 extends RewriterBase<Protocol1_11_1To1_12> {
 
         @Override
         protected void handleTranslate(JsonObject object, String translate) {
-            String text = AdvancementTranslations.get(translate);
+            String text = AdvancementTranslations1_11_1.get(translate);
             if (text != null) {
                 object.addProperty("translate", text);
             }
         }
     };
 
-    public ChatPackets1_12(Protocol1_11_1To1_12 protocol) {
+    public ComponentRewriter1_12(Protocol1_12To1_11_1 protocol) {
         super(protocol);
     }
 
     @Override
     protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_12.CHAT_MESSAGE, wrapper -> {
-            JsonElement element = wrapper.passthrough(Type.COMPONENT);
+        protocol.registerClientbound(ClientboundPackets1_12.CHAT, wrapper -> {
+            JsonElement element = wrapper.passthrough(Types.COMPONENT);
             COMPONENT_REWRITER.processText(wrapper.user(), element);
         });
     }

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/rewriter/EntityPacketRewriter1_12.java

@@ -16,168 +16,168 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter;
 
 import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data.ParrotStorage;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data.ShoulderTracker;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.storage.ParrotStorage;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.storage.ShoulderTracker;
 import com.viaversion.viaversion.api.data.entity.StoredEntityData;
 import com.viaversion.viaversion.api.minecraft.entities.EntityType;
 import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_12;
-import com.viaversion.viaversion.api.minecraft.metadata.Metadata;
-import com.viaversion.viaversion.api.minecraft.metadata.types.MetaType1_12;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.minecraft.entitydata.types.EntityDataTypes1_12;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.version.Types1_12;
 import com.viaversion.viaversion.libs.gson.JsonElement;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
+import com.viaversion.viaversion.protocols.v1_9_1to1_9_3.packet.ClientboundPackets1_9_3;
+import com.viaversion.nbt.tag.CompoundTag;
 
-public class EntityPackets1_12 extends LegacyEntityRewriter<ClientboundPackets1_12, Protocol1_11_1To1_12> {
+public class EntityPacketRewriter1_12 extends LegacyEntityRewriter<ClientboundPackets1_12, Protocol1_12To1_11_1> {
 
-    public EntityPackets1_12(Protocol1_11_1To1_12 protocol) {
+    public EntityPacketRewriter1_12(Protocol1_12To1_11_1 protocol) {
         super(protocol);
     }
 
     @Override
     protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_12.SPAWN_ENTITY, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.ADD_ENTITY, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.BYTE); // 2 - Type
-                map(Type.DOUBLE); // 3 - x
-                map(Type.DOUBLE); // 4 - y
-                map(Type.DOUBLE); // 5 - z
-                map(Type.BYTE); // 6 - Pitch
-                map(Type.BYTE); // 7 - Yaw
-                map(Type.INT); // 8 - data
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.BYTE); // 2 - Type
+                map(Types.DOUBLE); // 3 - x
+                map(Types.DOUBLE); // 4 - y
+                map(Types.DOUBLE); // 5 - z
+                map(Types.BYTE); // 6 - Pitch
+                map(Types.BYTE); // 7 - Yaw
+                map(Types.INT); // 8 - data
 
                 // Track Entity
                 handler(getObjectTrackerHandler());
-                handler(getObjectRewriter(id -> EntityTypes1_12.ObjectType.findById(id).orElse(null)));
+                handler(getObjectRewriter(EntityTypes1_12.ObjectType::findById));
 
                 handler(protocol.getItemRewriter().getFallingBlockHandler());
             }
         });
 
-        registerTracker(ClientboundPackets1_12.SPAWN_EXPERIENCE_ORB, EntityTypes1_12.EntityType.EXPERIENCE_ORB);
-        registerTracker(ClientboundPackets1_12.SPAWN_GLOBAL_ENTITY, EntityTypes1_12.EntityType.WEATHER);
+        registerTracker(ClientboundPackets1_12.ADD_EXPERIENCE_ORB, EntityTypes1_12.EntityType.EXPERIENCE_ORB);
+        registerTracker(ClientboundPackets1_12.ADD_GLOBAL_ENTITY, EntityTypes1_12.EntityType.LIGHTNING_BOLT);
 
-        protocol.registerClientbound(ClientboundPackets1_12.SPAWN_MOB, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.ADD_MOB, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity id
-                map(Type.UUID); // 1 - UUID
-                map(Type.VAR_INT); // 2 - Entity Type
-                map(Type.DOUBLE); // 3 - X
-                map(Type.DOUBLE); // 4 - Y
-                map(Type.DOUBLE); // 5 - Z
-                map(Type.BYTE); // 6 - Yaw
-                map(Type.BYTE); // 7 - Pitch
-                map(Type.BYTE); // 8 - Head Pitch
-                map(Type.SHORT); // 9 - Velocity X
-                map(Type.SHORT); // 10 - Velocity Y
-                map(Type.SHORT); // 11 - Velocity Z
-                map(Types1_12.METADATA_LIST); // 12 - Metadata
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.VAR_INT); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Yaw
+                map(Types.BYTE); // 7 - Pitch
+                map(Types.BYTE); // 8 - Head Pitch
+                map(Types.SHORT); // 9 - Velocity X
+                map(Types.SHORT); // 10 - Velocity Y
+                map(Types.SHORT); // 11 - Velocity Z
+                map(Types1_12.ENTITY_DATA_LIST); // 12 - Metadata
 
                 // Track entity
                 handler(getTrackerHandler());
 
                 // Rewrite entity type / metadata
-                handler(getMobSpawnRewriter1_11(Types1_12.METADATA_LIST));
+                handler(getMobSpawnRewriter1_11(Types1_12.ENTITY_DATA_LIST));
             }
         });
 
-        registerTracker(ClientboundPackets1_12.SPAWN_PAINTING, EntityTypes1_12.EntityType.PAINTING);
+        registerTracker(ClientboundPackets1_12.ADD_PAINTING, EntityTypes1_12.EntityType.PAINTING);
 
-        protocol.registerClientbound(ClientboundPackets1_12.SPAWN_PLAYER, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.ADD_PLAYER, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Entity ID
-                map(Type.UUID); // 1 - Player UUID
-                map(Type.DOUBLE); // 2 - X
-                map(Type.DOUBLE); // 3 - Y
-                map(Type.DOUBLE); // 4 - Z
-                map(Type.BYTE); // 5 - Yaw
-                map(Type.BYTE); // 6 - Pitch
-                map(Types1_12.METADATA_LIST); // 7 - Metadata list
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Player UUID
+                map(Types.DOUBLE); // 2 - X
+                map(Types.DOUBLE); // 3 - Y
+                map(Types.DOUBLE); // 4 - Z
+                map(Types.BYTE); // 5 - Yaw
+                map(Types.BYTE); // 6 - Pitch
+                map(Types1_12.ENTITY_DATA_LIST); // 7 - Metadata list
 
-                handler(getTrackerAndMetaHandler(Types1_12.METADATA_LIST, EntityTypes1_12.EntityType.PLAYER));
+                handler(getTrackerAndMetaHandler(Types1_12.ENTITY_DATA_LIST, EntityTypes1_12.EntityType.PLAYER));
             }
         });
 
-        protocol.registerClientbound(ClientboundPackets1_12.JOIN_GAME, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.LOGIN, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT); // 0 - Entity ID
-                map(Type.UNSIGNED_BYTE); // 1 - Gamemode
-                map(Type.INT); // 2 - Dimension
+                map(Types.INT); // 0 - Entity ID
+                map(Types.UNSIGNED_BYTE); // 1 - Gamemode
+                map(Types.INT); // 2 - Dimension
 
-                handler(getTrackerHandler(EntityTypes1_12.EntityType.PLAYER, Type.INT));
+                handler(getTrackerHandler(EntityTypes1_12.EntityType.PLAYER, Types.INT));
 
                 handler(getDimensionHandler(1));
 
                 handler(wrapper -> {
                     ShoulderTracker tracker = wrapper.user().get(ShoulderTracker.class);
-                    tracker.setEntityId(wrapper.get(Type.INT, 0));
+                    tracker.setEntityId(wrapper.get(Types.INT, 0));
                 });
 
                 // Send fake inventory achievement
                 handler(packetWrapper -> {
-                    PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_9_3.STATISTICS, packetWrapper.user());
+                    PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_9_3.AWARD_STATS, packetWrapper.user());
 
-                    wrapper.write(Type.VAR_INT, 1);
-                    wrapper.write(Type.STRING, "achievement.openInventory");
-                    wrapper.write(Type.VAR_INT, 1);
+                    wrapper.write(Types.VAR_INT, 1);
+                    wrapper.write(Types.STRING, "achievement.openInventory");
+                    wrapper.write(Types.VAR_INT, 1);
 
-                    wrapper.scheduleSend(Protocol1_11_1To1_12.class);
+                    wrapper.scheduleSend(Protocol1_12To1_11_1.class);
                 });
             }
         });
 
         registerRespawn(ClientboundPackets1_12.RESPAWN);
-        registerRemoveEntities(ClientboundPackets1_12.DESTROY_ENTITIES);
-        registerMetadataRewriter(ClientboundPackets1_12.ENTITY_METADATA, Types1_12.METADATA_LIST);
+        registerRemoveEntities(ClientboundPackets1_12.REMOVE_ENTITIES);
+        registerSetEntityData(ClientboundPackets1_12.SET_ENTITY_DATA, Types1_12.ENTITY_DATA_LIST);
 
-        protocol.registerClientbound(ClientboundPackets1_12.ENTITY_PROPERTIES, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.UPDATE_ATTRIBUTES, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT);
-                map(Type.INT);
+                map(Types.VAR_INT);
+                map(Types.INT);
                 handler(wrapper -> {
-                    int size = wrapper.get(Type.INT, 0);
+                    int size = wrapper.get(Types.INT, 0);
                     int newSize = size;
                     for (int i = 0; i < size; i++) {
-                        String key = wrapper.read(Type.STRING);
+                        String key = wrapper.read(Types.STRING);
                         // Remove new attribute
                         if (key.equals("generic.flyingSpeed")) {
                             newSize--;
-                            wrapper.read(Type.DOUBLE);
-                            int modSize = wrapper.read(Type.VAR_INT);
+                            wrapper.read(Types.DOUBLE);
+                            int modSize = wrapper.read(Types.VAR_INT);
                             for (int j = 0; j < modSize; j++) {
-                                wrapper.read(Type.UUID);
-                                wrapper.read(Type.DOUBLE);
-                                wrapper.read(Type.BYTE);
+                                wrapper.read(Types.UUID);
+                                wrapper.read(Types.DOUBLE);
+                                wrapper.read(Types.BYTE);
                             }
                         } else {
-                            wrapper.write(Type.STRING, key);
-                            wrapper.passthrough(Type.DOUBLE);
-                            int modSize = wrapper.passthrough(Type.VAR_INT);
+                            wrapper.write(Types.STRING, key);
+                            wrapper.passthrough(Types.DOUBLE);
+                            int modSize = wrapper.passthrough(Types.VAR_INT);
                             for (int j = 0; j < modSize; j++) {
-                                wrapper.passthrough(Type.UUID);
-                                wrapper.passthrough(Type.DOUBLE);
-                                wrapper.passthrough(Type.BYTE);
+                                wrapper.passthrough(Types.UUID);
+                                wrapper.passthrough(Types.DOUBLE);
+                                wrapper.passthrough(Types.BYTE);
                             }
                         }
                     }
 
                     if (newSize != size) {
-                        wrapper.set(Type.INT, 0, newSize);
+                        wrapper.set(Types.INT, 0, newSize);
                     }
                 });
             }
@@ -186,20 +186,19 @@ public class EntityPackets1_12 extends LegacyEntityRewriter<ClientboundPackets1_
 
     @Override
     protected void registerRewrites() {
-        mapEntityTypeWithData(EntityTypes1_12.EntityType.PARROT, EntityTypes1_12.EntityType.BAT).plainName().spawnMetadata(storage -> storage.add(new Metadata(12, MetaType1_12.Byte, (byte) 0x00)));
-        mapEntityTypeWithData(EntityTypes1_12.EntityType.ILLUSION_ILLAGER, EntityTypes1_12.EntityType.EVOCATION_ILLAGER).plainName();
+        mapEntityTypeWithData(EntityTypes1_12.EntityType.PARROT, EntityTypes1_12.EntityType.BAT).plainName().spawnMetadata(storage -> storage.add(new EntityData(12, EntityDataTypes1_12.BYTE, (byte) 0x00)));
+        mapEntityTypeWithData(EntityTypes1_12.EntityType.ILLUSIONER, EntityTypes1_12.EntityType.EVOKER).plainName();
 
         filter().handler((event, meta) -> {
-            if (meta.metaType() == MetaType1_12.Chat) {
-                ChatPackets1_12.COMPONENT_REWRITER.processText(event.user(), (JsonElement) meta.getValue());
+            if (meta.dataType() == EntityDataTypes1_12.COMPONENT) {
+                ComponentRewriter1_12.COMPONENT_REWRITER.processText(event.user(), (JsonElement) meta.getValue());
             }
         });
 
         // Handle Illager
-        filter().type(EntityTypes1_12.EntityType.EVOCATION_ILLAGER).cancel(12);
-        filter().type(EntityTypes1_12.EntityType.EVOCATION_ILLAGER).index(13).toIndex(12);
+        filter().type(EntityTypes1_12.EntityType.EVOKER).removeIndex(12);
 
-        filter().type(EntityTypes1_12.EntityType.ILLUSION_ILLAGER).index(0).handler((event, meta) -> {
+        filter().type(EntityTypes1_12.EntityType.ILLUSIONER).index(0).handler((event, meta) -> {
             byte mask = (byte) meta.getValue();
 
             if ((mask & 0x20) == 0x20) {
@@ -266,7 +265,7 @@ public class EntityPackets1_12 extends LegacyEntityRewriter<ClientboundPackets1_
 
         // Right shoulder entity data
         filter().type(EntityTypes1_12.EntityType.PLAYER).index(16).handler((event, meta) -> {
-            CompoundTag tag = (CompoundTag) event.meta().getValue();
+            CompoundTag tag = (CompoundTag) event.data().getValue();
             ShoulderTracker tracker = event.user().get(ShoulderTracker.class);
 
             if (tag.isEmpty() && tracker.getRightShoulder() != null) {

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/rewriter/SoundPacketRewriter1_12.java

@@ -16,48 +16,49 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.packets;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.rewriter;
 
 import com.viaversion.viabackwards.api.rewriters.LegacySoundRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
 
-public class SoundPackets1_12 extends LegacySoundRewriter<Protocol1_11_1To1_12> {
+public class SoundPacketRewriter1_12 extends LegacySoundRewriter<Protocol1_12To1_11_1> {
 
-    public SoundPackets1_12(Protocol1_11_1To1_12 protocol) {
+    public SoundPacketRewriter1_12(Protocol1_12To1_11_1 protocol) {
         super(protocol);
     }
 
     @Override
     protected void registerPackets() {
-        protocol.registerClientbound(ClientboundPackets1_12.NAMED_SOUND, new PacketHandlers() {
+        protocol.registerClientbound(ClientboundPackets1_12.CUSTOM_SOUND, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.STRING); // 0 - Sound name
-                map(Type.VAR_INT); // 1 - Sound Category
-                map(Type.INT); // 2 - x
-                map(Type.INT); // 3 - y
-                map(Type.INT); // 4 - z
-                map(Type.FLOAT); // 5 - Volume
-                map(Type.FLOAT); // 6 - Pitch
+                map(Types.STRING); // 0 - Sound name
+                map(Types.VAR_INT); // 1 - Sound Category
+                map(Types.INT); // 2 - x
+                map(Types.INT); // 3 - y
+                map(Types.INT); // 4 - z
+                map(Types.FLOAT); // 5 - Volume
+                map(Types.FLOAT); // 6 - Pitch
             }
         });
 
         protocol.registerClientbound(ClientboundPackets1_12.SOUND, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // 0 - Sound name
-                map(Type.VAR_INT); // 1 - Sound Category
-                map(Type.INT); // 2 - x
-                map(Type.INT); // 3 - y
-                map(Type.INT); // 4 - z
-                map(Type.FLOAT); // 5 - Volume
-                map(Type.FLOAT); // 6 - Pitch
+                map(Types.VAR_INT); // 0 - Sound name
+                map(Types.VAR_INT); // 1 - Sound Category
+                map(Types.INT); // 2 - x
+                map(Types.INT); // 3 - y
+                map(Types.INT); // 4 - z
+                map(Types.FLOAT); // 5 - Volume
+                map(Types.FLOAT); // 6 - Pitch
 
                 handler(wrapper -> {
-                    int oldId = wrapper.get(Type.VAR_INT, 0);
+                    int oldId = wrapper.get(Types.VAR_INT, 0);
                     int newId = handleSounds(oldId);
                     if (newId == -1) {
                         wrapper.cancel();
@@ -65,9 +66,9 @@ public class SoundPackets1_12 extends LegacySoundRewriter<Protocol1_11_1To1_12>
                     }
 
                     if (hasPitch(oldId)) {
-                        wrapper.set(Type.FLOAT, 1, handlePitch(oldId));
+                        wrapper.set(Types.FLOAT, 1, handlePitch(oldId));
                     }
-                    wrapper.set(Type.VAR_INT, 0, newId);
+                    wrapper.set(Types.VAR_INT, 0, newId);
                 });
             }
         });

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/storage/ParrotStorage.java

@@ -16,7 +16,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.storage;
 
 public class ParrotStorage {
     private boolean tamed = true;

common/src/main/java/com/viaversion/viabackwards/protocol/v1_12to1_11_1/storage/ShoulderTracker.java

@@ -16,17 +16,18 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.data;
+package com.viaversion.viabackwards.protocol.v1_12to1_11_1.storage;
 
 import com.viaversion.viabackwards.ViaBackwards;
-import com.viaversion.viabackwards.protocol.protocol1_11_1to1_12.Protocol1_11_1To1_12;
+import com.viaversion.viabackwards.protocol.v1_12to1_11_1.Protocol1_12To1_11_1;
 import com.viaversion.viaversion.api.connection.StoredObject;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.ClientboundPackets1_12;
-import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_11_1to1_12.packet.ClientboundPackets1_12;
+import com.viaversion.viaversion.util.ComponentUtil;
 import com.viaversion.viaversion.util.Key;
+import java.util.Locale;
 
 public class ShoulderTracker extends StoredObject {
     private int entityId;
@@ -38,17 +39,17 @@ public class ShoulderTracker extends StoredObject {
     }
 
     public void update() {
-        PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_12.CHAT_MESSAGE, null, getUser());
+        PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_12.CHAT, getUser());
 
         try {
-            wrapper.write(Type.COMPONENT, Protocol1_9To1_8.STRING_TO_JSON.transform(wrapper, generateString()));
+            wrapper.write(Types.COMPONENT, ComponentUtil.plainToJson(generateString()));
         } catch (final Exception e) {
             throw new RuntimeException(e);
         }
-        wrapper.write(Type.BYTE, (byte) 2);
+        wrapper.write(Types.BYTE, (byte) 2);
 
         try {
-            wrapper.scheduleSend(Protocol1_11_1To1_12.class);
+            wrapper.scheduleSend(Protocol1_12To1_11_1.class);
         } catch (Exception e) {
             ViaBackwards.getPlatform().getLogger().severe("Failed to send the shoulder indication");
             e.printStackTrace();
@@ -85,7 +86,7 @@ public class ShoulderTracker extends StoredObject {
         StringBuilder builder = new StringBuilder();
 
         for (String s : array) {
-            builder.append(s.substring(0, 1).toUpperCase())
+            builder.append(s.substring(0, 1).toUpperCase(Locale.ROOT))
                 .append(s.substring(1))
                 .append(" ");
         }

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_1to1_13/Protocol1_13_1To1_13.java

@@ -15,16 +15,16 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_13to1_13_1;
+package com.viaversion.viabackwards.protocol.v1_13_1to1_13;
 
 import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.api.BackwardsProtocol;
-import com.viaversion.viabackwards.api.data.BackwardsMappings;
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viabackwards.api.rewriters.TranslatableRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.data.CommandRewriter1_13_1;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.packets.EntityPackets1_13_1;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.packets.InventoryPackets1_13_1;
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.packets.WorldPackets1_13_1;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter.CommandRewriter1_13_1;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter.EntityPacketRewriter1_13_1;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter.ItemPacketRewriter1_13_1;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter.WorldPacketRewriter1_13_1;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.RegistryType;
@@ -33,27 +33,27 @@ import com.viaversion.viaversion.api.minecraft.item.Item;
 import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.protocol.remapper.ValueTransformer;
-import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.data.entity.EntityTrackerBase;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.libs.gson.JsonObject;
-import com.viaversion.viaversion.protocols.protocol1_13_1to1_13.Protocol1_13_1To1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ServerboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_13to1_13_1.Protocol1_13To1_13_1;
 import com.viaversion.viaversion.rewriter.ComponentRewriter;
 import com.viaversion.viaversion.rewriter.StatisticsRewriter;
 import com.viaversion.viaversion.rewriter.TagRewriter;
 import com.viaversion.viaversion.util.ComponentUtil;
 
-public class Protocol1_13To1_13_1 extends BackwardsProtocol<ClientboundPackets1_13, ClientboundPackets1_13, ServerboundPackets1_13, ServerboundPackets1_13> {
+public class Protocol1_13_1To1_13 extends BackwardsProtocol<ClientboundPackets1_13, ClientboundPackets1_13, ServerboundPackets1_13, ServerboundPackets1_13> {
 
-    public static final BackwardsMappings MAPPINGS = new BackwardsMappings("1.13.2", "1.13", Protocol1_13_1To1_13.class);
-    private final EntityPackets1_13_1 entityRewriter = new EntityPackets1_13_1(this);
-    private final InventoryPackets1_13_1 itemRewriter = new InventoryPackets1_13_1(this);
+    public static final BackwardsMappingData MAPPINGS = new BackwardsMappingData("1.13.2", "1.13", Protocol1_13To1_13_1.class);
+    private final EntityPacketRewriter1_13_1 entityRewriter = new EntityPacketRewriter1_13_1(this);
+    private final ItemPacketRewriter1_13_1 itemRewriter = new ItemPacketRewriter1_13_1(this);
     private final TranslatableRewriter<ClientboundPackets1_13> translatableRewriter = new TranslatableRewriter<>(this, ComponentRewriter.ReadType.JSON);
     private final TagRewriter<ClientboundPackets1_13> tagRewriter = new TagRewriter<>(this);
 
-    public Protocol1_13To1_13_1() {
+    public Protocol1_13_1To1_13() {
         super(ClientboundPackets1_13.class, ClientboundPackets1_13.class, ServerboundPackets1_13.class, ServerboundPackets1_13.class);
     }
 
@@ -61,22 +61,22 @@ public class Protocol1_13To1_13_1 extends BackwardsProtocol<ClientboundPackets1_
     protected void registerPackets() {
         super.registerPackets();
 
-        WorldPackets1_13_1.register(this);
+        WorldPacketRewriter1_13_1.register(this);
 
-        translatableRewriter.registerComponentPacket(ClientboundPackets1_13.CHAT_MESSAGE);
-        translatableRewriter.registerCombatEvent(ClientboundPackets1_13.COMBAT_EVENT);
+        translatableRewriter.registerComponentPacket(ClientboundPackets1_13.CHAT);
+        translatableRewriter.registerPlayerCombat(ClientboundPackets1_13.PLAYER_COMBAT);
         translatableRewriter.registerComponentPacket(ClientboundPackets1_13.DISCONNECT);
         translatableRewriter.registerTabList(ClientboundPackets1_13.TAB_LIST);
-        translatableRewriter.registerTitle(ClientboundPackets1_13.TITLE);
+        translatableRewriter.registerTitle(ClientboundPackets1_13.SET_TITLES);
         translatableRewriter.registerPing();
 
-        new CommandRewriter1_13_1(this).registerDeclareCommands(ClientboundPackets1_13.DECLARE_COMMANDS);
+        new CommandRewriter1_13_1(this).registerDeclareCommands(ClientboundPackets1_13.COMMANDS);
 
-        registerServerbound(ServerboundPackets1_13.TAB_COMPLETE, new PacketHandlers() {
+        registerServerbound(ServerboundPackets1_13.COMMAND_SUGGESTION, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT);
-                map(Type.STRING, new ValueTransformer<String, String>(Type.STRING) {
+                map(Types.VAR_INT);
+                map(Types.STRING, new ValueTransformer<>(Types.STRING) {
                     @Override
                     public String transform(PacketWrapper wrapper, String inputValue) {
                         // 1.13 starts sending slash at start, so we remove it for compatibility
@@ -89,22 +89,22 @@ public class Protocol1_13To1_13_1 extends BackwardsProtocol<ClientboundPackets1_
         registerServerbound(ServerboundPackets1_13.EDIT_BOOK, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.ITEM1_13);
-                map(Type.BOOLEAN);
+                map(Types.ITEM1_13);
+                map(Types.BOOLEAN);
                 handler(wrapper -> {
-                    itemRewriter.handleItemToServer(wrapper.user(), wrapper.get(Type.ITEM1_13, 0));
-                    wrapper.write(Type.VAR_INT, 0);
+                    itemRewriter.handleItemToServer(wrapper.user(), wrapper.get(Types.ITEM1_13, 0));
+                    wrapper.write(Types.VAR_INT, 0);
                 });
             }
         });
 
-        registerClientbound(ClientboundPackets1_13.OPEN_WINDOW, new PacketHandlers() {
+        registerClientbound(ClientboundPackets1_13.OPEN_SCREEN, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UNSIGNED_BYTE); // Id
-                map(Type.STRING); // Window Type
+                map(Types.UNSIGNED_BYTE); // Id
+                map(Types.STRING); // Window Type
                 handler(wrapper -> {
-                    JsonElement title = wrapper.passthrough(Type.COMPONENT);
+                    JsonElement title = wrapper.passthrough(Types.COMPONENT);
                     translatableRewriter.processText(wrapper.user(), title);
 
                     if (ViaBackwards.getConfig().fix1_13FormattedInventoryTitle()) {
@@ -117,87 +117,87 @@ public class Protocol1_13To1_13_1 extends BackwardsProtocol<ClientboundPackets1_
                         // https://bugs.mojang.com/browse/MC-124543
                         JsonObject legacyComponent = new JsonObject();
                         legacyComponent.addProperty("text", ComponentUtil.jsonToLegacy(title));
-                        wrapper.set(Type.COMPONENT, 0, legacyComponent);
+                        wrapper.set(Types.COMPONENT, 0, legacyComponent);
                     }
                 });
             }
         });
 
-        registerClientbound(ClientboundPackets1_13.TAB_COMPLETE, new PacketHandlers() {
+        registerClientbound(ClientboundPackets1_13.COMMAND_SUGGESTIONS, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.VAR_INT); // Transaction id
-                map(Type.VAR_INT); // Start
-                map(Type.VAR_INT); // Length
-                map(Type.VAR_INT); // Count
+                map(Types.VAR_INT); // Transaction id
+                map(Types.VAR_INT); // Start
+                map(Types.VAR_INT); // Length
+                map(Types.VAR_INT); // Count
                 handler(wrapper -> {
-                    int start = wrapper.get(Type.VAR_INT, 1);
-                    wrapper.set(Type.VAR_INT, 1, start - 1); // Offset by +1 to take into account / at beginning
+                    int start = wrapper.get(Types.VAR_INT, 1);
+                    wrapper.set(Types.VAR_INT, 1, start - 1); // Offset by +1 to take into account / at beginning
                     // Passthrough suggestions
-                    int count = wrapper.get(Type.VAR_INT, 3);
+                    int count = wrapper.get(Types.VAR_INT, 3);
                     for (int i = 0; i < count; i++) {
-                        wrapper.passthrough(Type.STRING);
-                        wrapper.passthrough(Type.OPTIONAL_COMPONENT); // Tooltip
+                        wrapper.passthrough(Types.STRING);
+                        wrapper.passthrough(Types.OPTIONAL_COMPONENT); // Tooltip
                     }
                 });
             }
         });
 
-        registerClientbound(ClientboundPackets1_13.BOSSBAR, new PacketHandlers() {
+        registerClientbound(ClientboundPackets1_13.BOSS_EVENT, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.UUID);
-                map(Type.VAR_INT);
+                map(Types.UUID);
+                map(Types.VAR_INT);
                 handler(wrapper -> {
-                    int action = wrapper.get(Type.VAR_INT, 0);
+                    int action = wrapper.get(Types.VAR_INT, 0);
                     if (action == 0 || action == 3) {
-                        translatableRewriter.processText(wrapper.user(), wrapper.passthrough(Type.COMPONENT));
+                        translatableRewriter.processText(wrapper.user(), wrapper.passthrough(Types.COMPONENT));
                         if (action == 0) {
-                            wrapper.passthrough(Type.FLOAT);
-                            wrapper.passthrough(Type.VAR_INT);
-                            wrapper.passthrough(Type.VAR_INT);
-                            short flags = wrapper.read(Type.UNSIGNED_BYTE);
+                            wrapper.passthrough(Types.FLOAT);
+                            wrapper.passthrough(Types.VAR_INT);
+                            wrapper.passthrough(Types.VAR_INT);
+                            short flags = wrapper.read(Types.UNSIGNED_BYTE);
                             if ((flags & 0x04) != 0) flags |= 0x02;
-                            wrapper.write(Type.UNSIGNED_BYTE, flags);
+                            wrapper.write(Types.UNSIGNED_BYTE, flags);
                         }
                     }
                 });
             }
         });
 
-        registerClientbound(ClientboundPackets1_13.ADVANCEMENTS, wrapper -> {
-            wrapper.passthrough(Type.BOOLEAN); // Reset/clear
-            int size = wrapper.passthrough(Type.VAR_INT); // Mapping size
+        registerClientbound(ClientboundPackets1_13.UPDATE_ADVANCEMENTS, wrapper -> {
+            wrapper.passthrough(Types.BOOLEAN); // Reset/clear
+            int size = wrapper.passthrough(Types.VAR_INT); // Mapping size
 
             for (int i = 0; i < size; i++) {
-                wrapper.passthrough(Type.STRING); // Identifier
-                wrapper.passthrough(Type.OPTIONAL_STRING); // Parent
+                wrapper.passthrough(Types.STRING); // Identifier
+                wrapper.passthrough(Types.OPTIONAL_STRING); // Parent
 
                 // Display data
-                if (wrapper.passthrough(Type.BOOLEAN)) {
-                    wrapper.passthrough(Type.COMPONENT); // Title
-                    wrapper.passthrough(Type.COMPONENT); // Description
-                    Item icon = wrapper.passthrough(Type.ITEM1_13);
+                if (wrapper.passthrough(Types.BOOLEAN)) {
+                    wrapper.passthrough(Types.COMPONENT); // Title
+                    wrapper.passthrough(Types.COMPONENT); // Description
+                    Item icon = wrapper.passthrough(Types.ITEM1_13);
                     itemRewriter.handleItemToClient(wrapper.user(), icon);
-                    wrapper.passthrough(Type.VAR_INT); // Frame type
-                    int flags = wrapper.passthrough(Type.INT); // Flags
+                    wrapper.passthrough(Types.VAR_INT); // Frame type
+                    int flags = wrapper.passthrough(Types.INT); // Flags
                     if ((flags & 1) != 0)
-                        wrapper.passthrough(Type.STRING); // Background texture
-                    wrapper.passthrough(Type.FLOAT); // X
-                    wrapper.passthrough(Type.FLOAT); // Y
+                        wrapper.passthrough(Types.STRING); // Background texture
+                    wrapper.passthrough(Types.FLOAT); // X
+                    wrapper.passthrough(Types.FLOAT); // Y
                 }
 
-                wrapper.passthrough(Type.STRING_ARRAY); // Criteria
+                wrapper.passthrough(Types.STRING_ARRAY); // Criteria
 
-                int arrayLength = wrapper.passthrough(Type.VAR_INT);
+                int arrayLength = wrapper.passthrough(Types.VAR_INT);
                 for (int array = 0; array < arrayLength; array++) {
-                    wrapper.passthrough(Type.STRING_ARRAY); // String array
+                    wrapper.passthrough(Types.STRING_ARRAY); // String array
                 }
             }
         });
 
-        tagRewriter.register(ClientboundPackets1_13.TAGS, RegistryType.ITEM);
-        new StatisticsRewriter<>(this).register(ClientboundPackets1_13.STATISTICS);
+        tagRewriter.register(ClientboundPackets1_13.UPDATE_TAGS, RegistryType.ITEM);
+        new StatisticsRewriter<>(this).register(ClientboundPackets1_13.AWARD_STATS);
     }
 
     @Override
@@ -210,17 +210,17 @@ public class Protocol1_13To1_13_1 extends BackwardsProtocol<ClientboundPackets1_
     }
 
     @Override
-    public BackwardsMappings getMappingData() {
+    public BackwardsMappingData getMappingData() {
         return MAPPINGS;
     }
 
     @Override
-    public EntityPackets1_13_1 getEntityRewriter() {
+    public EntityPacketRewriter1_13_1 getEntityRewriter() {
         return entityRewriter;
     }
 
     @Override
-    public InventoryPackets1_13_1 getItemRewriter() {
+    public ItemPacketRewriter1_13_1 getItemRewriter() {
         return itemRewriter;
     }
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_1to1_13/rewriter/CommandRewriter1_13_1.java

@@ -15,22 +15,20 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.data;
+package com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter;
 
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.Protocol1_13To1_13_1;
-import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.Protocol1_13_1To1_13;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
 import com.viaversion.viaversion.rewriter.CommandRewriter;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public class CommandRewriter1_13_1 extends CommandRewriter<ClientboundPackets1_13> {
 
-    public CommandRewriter1_13_1(Protocol1_13To1_13_1 protocol) {
+    public CommandRewriter1_13_1(Protocol1_13_1To1_13 protocol) {
         super(protocol);
 
-        this.parserHandlers.put("minecraft:dimension", wrapper -> {
-            wrapper.write(Type.VAR_INT, 0); // Single word
-        });
+        this.parserHandlers.put("minecraft:dimension", wrapper -> wrapper.write(Types.VAR_INT, 0)); // Single word
     }
 
     @Override

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_1to1_13/rewriter/EntityPacketRewriter1_13_1.java

@@ -0,0 +1,173 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter;
+
+import com.viaversion.viabackwards.api.rewriters.LegacyEntityRewriter;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.Protocol1_13_1To1_13;
+import com.viaversion.viaversion.api.minecraft.Particle;
+import com.viaversion.viaversion.api.minecraft.entities.EntityType;
+import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_13;
+import com.viaversion.viaversion.api.minecraft.item.Item;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.api.type.types.version.Types1_13;
+import com.viaversion.viaversion.libs.gson.JsonElement;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+import java.util.List;
+
+public class EntityPacketRewriter1_13_1 extends LegacyEntityRewriter<ClientboundPackets1_13, Protocol1_13_1To1_13> {
+
+    public EntityPacketRewriter1_13_1(Protocol1_13_1To1_13 protocol) {
+        super(protocol);
+    }
+
+    @Override
+    protected void registerPackets() {
+        protocol.registerClientbound(ClientboundPackets1_13.ADD_ENTITY, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity id
+                map(Types.UUID); // 1 - UUID
+                map(Types.BYTE); // 2 - Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Pitch
+                map(Types.BYTE); // 7 - Yaw
+                map(Types.INT); // 8 - Data
+
+                handler(wrapper -> {
+                    int entityId = wrapper.get(Types.VAR_INT, 0);
+                    byte type = wrapper.get(Types.BYTE, 0);
+                    EntityTypes1_13.EntityType entType = EntityTypes1_13.getTypeFromId(type, true);
+                    if (entType == null) {
+                        protocol.getLogger().warning("Could not find entity type " + type);
+                        return;
+                    }
+
+                    // Rewrite falling block
+                    if (entType.is(EntityTypes1_13.EntityType.FALLING_BLOCK)) {
+                        int data = wrapper.get(Types.INT, 0);
+                        wrapper.set(Types.INT, 0, protocol.getMappingData().getNewBlockStateId(data));
+                    }
+
+                    // Track Entity
+                    tracker(wrapper.user()).addEntity(entityId, entType);
+                });
+            }
+        });
+
+        registerTracker(ClientboundPackets1_13.ADD_EXPERIENCE_ORB, EntityTypes1_13.EntityType.EXPERIENCE_ORB);
+        registerTracker(ClientboundPackets1_13.ADD_GLOBAL_ENTITY, EntityTypes1_13.EntityType.LIGHTNING_BOLT);
+
+        protocol.registerClientbound(ClientboundPackets1_13.ADD_MOB, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Entity UUID
+                map(Types.VAR_INT); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Yaw
+                map(Types.BYTE); // 7 - Pitch
+                map(Types.BYTE); // 8 - Head Pitch
+                map(Types.SHORT); // 9 - Velocity X
+                map(Types.SHORT); // 10 - Velocity Y
+                map(Types.SHORT); // 11 - Velocity Z
+                map(Types1_13.ENTITY_DATA_LIST); // 12 - Metadata
+
+                // Track Entity
+                handler(getTrackerHandler());
+
+                // Rewrite Metadata
+                handler(wrapper -> {
+                    List<EntityData> metadata = wrapper.get(Types1_13.ENTITY_DATA_LIST, 0);
+                    handleEntityData(wrapper.get(Types.VAR_INT, 0), metadata, wrapper.user());
+                });
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.ADD_PLAYER, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Player UUID
+                map(Types.DOUBLE); // 2 - X
+                map(Types.DOUBLE); // 3 - Y
+                map(Types.DOUBLE); // 4 - Z
+                map(Types.BYTE); // 5 - Yaw
+                map(Types.BYTE); // 6 - Pitch
+                map(Types1_13.ENTITY_DATA_LIST); // 7 - Metadata
+
+                handler(getTrackerAndMetaHandler(Types1_13.ENTITY_DATA_LIST, EntityTypes1_13.EntityType.PLAYER));
+            }
+        });
+
+        registerTracker(ClientboundPackets1_13.ADD_PAINTING, EntityTypes1_13.EntityType.PAINTING);
+        registerJoinGame(ClientboundPackets1_13.LOGIN, EntityTypes1_13.EntityType.PLAYER);
+        registerRespawn(ClientboundPackets1_13.RESPAWN);
+        registerRemoveEntities(ClientboundPackets1_13.REMOVE_ENTITIES);
+        registerSetEntityData(ClientboundPackets1_13.SET_ENTITY_DATA, Types1_13.ENTITY_DATA_LIST);
+    }
+
+    @Override
+    protected void registerRewrites() {
+        // Rewrite items & blocks
+        filter().handler((event, meta) -> {
+            if (meta.dataType() == Types1_13.ENTITY_DATA_TYPES.itemType) {
+                protocol.getItemRewriter().handleItemToClient(event.user(), (Item) meta.getValue());
+            } else if (meta.dataType() == Types1_13.ENTITY_DATA_TYPES.optionalBlockStateType) {
+                // Convert to new block id
+                int data = (int) meta.getValue();
+                meta.setValue(protocol.getMappingData().getNewBlockStateId(data));
+            } else if (meta.dataType() == Types1_13.ENTITY_DATA_TYPES.particleType) {
+                rewriteParticle(event.user(), (Particle) meta.getValue());
+            } else if (meta.dataType() == Types1_13.ENTITY_DATA_TYPES.optionalComponentType || meta.dataType() == Types1_13.ENTITY_DATA_TYPES.componentType) {
+                JsonElement element = meta.value();
+                protocol.translatableRewriter().processText(event.user(), element);
+            }
+        });
+
+        // Remove shooter UUID
+        filter().type(EntityTypes1_13.EntityType.ABSTRACT_ARROW).cancel(7);
+
+        // Move colors to old position
+        filter().type(EntityTypes1_13.EntityType.SPECTRAL_ARROW).index(8).toIndex(7);
+
+        // Move loyalty level to old position
+        filter().type(EntityTypes1_13.EntityType.TRIDENT).index(8).toIndex(7);
+
+        // Rewrite Minecart blocks
+        filter().type(EntityTypes1_13.EntityType.ABSTRACT_MINECART).index(9).handler((event, meta) -> {
+            int data = (int) meta.getValue();
+            meta.setValue(protocol.getMappingData().getNewBlockStateId(data));
+        });
+    }
+
+    @Override
+    public EntityType typeFromId(int typeId) {
+        return EntityTypes1_13.getTypeFromId(typeId, false);
+    }
+
+    @Override
+    public EntityType objectTypeFromId(int typeId) {
+        return EntityTypes1_13.getTypeFromId(typeId, true);
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_1to1_13/rewriter/ItemPacketRewriter1_13_1.java

@@ -0,0 +1,74 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter;
+
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.Protocol1_13_1To1_13;
+import com.viaversion.viaversion.api.minecraft.item.Item;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ServerboundPackets1_13;
+import com.viaversion.viaversion.rewriter.ItemRewriter;
+
+public class ItemPacketRewriter1_13_1 extends ItemRewriter<ClientboundPackets1_13, ServerboundPackets1_13, Protocol1_13_1To1_13> {
+
+    public ItemPacketRewriter1_13_1(Protocol1_13_1To1_13 protocol) {
+        super(protocol, Types.ITEM1_13, Types.ITEM1_13_SHORT_ARRAY);
+    }
+
+    @Override
+    public void registerPackets() {
+        registerCooldown(ClientboundPackets1_13.COOLDOWN);
+        registerSetContent(ClientboundPackets1_13.CONTAINER_SET_CONTENT);
+        registerSetSlot(ClientboundPackets1_13.CONTAINER_SET_SLOT);
+
+        protocol.registerClientbound(ClientboundPackets1_13.CUSTOM_PAYLOAD, wrapper -> {
+            String channel = wrapper.passthrough(Types.STRING);
+            if (channel.equals("minecraft:trader_list")) {
+                wrapper.passthrough(Types.INT); //Passthrough Window ID
+
+                int size = wrapper.passthrough(Types.UNSIGNED_BYTE);
+                for (int i = 0; i < size; i++) {
+                    //Input Item
+                    Item input = wrapper.passthrough(Types.ITEM1_13);
+                    handleItemToClient(wrapper.user(), input);
+                    //Output Item
+                    Item output = wrapper.passthrough(Types.ITEM1_13);
+                    handleItemToClient(wrapper.user(), output);
+
+                    boolean secondItem = wrapper.passthrough(Types.BOOLEAN); //Has second item
+                    if (secondItem) {
+                        //Second Item
+                        Item second = wrapper.passthrough(Types.ITEM1_13);
+                        handleItemToClient(wrapper.user(), second);
+                    }
+
+                    wrapper.passthrough(Types.BOOLEAN); //Trade disabled
+                    wrapper.passthrough(Types.INT); //Number of tools uses
+                    wrapper.passthrough(Types.INT); //Maximum number of trade uses
+                }
+            }
+        });
+
+        registerSetEquippedItem(ClientboundPackets1_13.SET_EQUIPPED_ITEM);
+        registerContainerClick(ServerboundPackets1_13.CONTAINER_CLICK);
+        registerSetCreativeModeSlot(ServerboundPackets1_13.SET_CREATIVE_MODE_SLOT);
+
+        registerLevelParticles(ClientboundPackets1_13.LEVEL_PARTICLES, Types.FLOAT);
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_1to1_13/rewriter/WorldPacketRewriter1_13_1.java

@@ -15,9 +15,9 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.packets;
+package com.viaversion.viabackwards.protocol.v1_13_1to1_13.rewriter;
 
-import com.viaversion.viabackwards.protocol.protocol1_13to1_13_1.Protocol1_13To1_13_1;
+import com.viaversion.viabackwards.protocol.v1_13_1to1_13.Protocol1_13_1To1_13;
 import com.viaversion.viaversion.api.minecraft.BlockFace;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
 import com.viaversion.viaversion.api.minecraft.Position;
@@ -27,16 +27,17 @@ import com.viaversion.viaversion.api.minecraft.chunks.DataPalette;
 import com.viaversion.viaversion.api.minecraft.chunks.PaletteType;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
 import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
 import com.viaversion.viaversion.rewriter.BlockRewriter;
 
-public class WorldPackets1_13_1 {
+public class WorldPacketRewriter1_13_1 {
 
-    public static void register(Protocol1_13To1_13_1 protocol) {
+    public static void register(Protocol1_13_1To1_13 protocol) {
         BlockRewriter<ClientboundPackets1_13> blockRewriter = BlockRewriter.legacy(protocol);
 
-        protocol.registerClientbound(ClientboundPackets1_13.CHUNK_DATA, wrapper -> {
+        protocol.registerClientbound(ClientboundPackets1_13.LEVEL_CHUNK, wrapper -> {
             ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
             Chunk chunk = wrapper.passthrough(ChunkType1_13.forEnvironment(clientWorld.getEnvironment()));
 
@@ -53,43 +54,34 @@ public class WorldPackets1_13_1 {
             }
         });
 
-        blockRewriter.registerBlockAction(ClientboundPackets1_13.BLOCK_ACTION);
-        blockRewriter.registerBlockChange(ClientboundPackets1_13.BLOCK_CHANGE);
-        blockRewriter.registerMultiBlockChange(ClientboundPackets1_13.MULTI_BLOCK_CHANGE);
-        protocol.registerClientbound(ClientboundPackets1_13.EFFECT, new PacketHandlers() {
+        blockRewriter.registerBlockEvent(ClientboundPackets1_13.BLOCK_EVENT);
+        blockRewriter.registerBlockUpdate(ClientboundPackets1_13.BLOCK_UPDATE);
+        blockRewriter.registerChunkBlocksUpdate(ClientboundPackets1_13.CHUNK_BLOCKS_UPDATE);
+        protocol.registerClientbound(ClientboundPackets1_13.LEVEL_EVENT, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT); // Effect Id
-                map(Type.POSITION1_8); // Location
-                map(Type.INT); // Data
+                map(Types.INT); // Effect Id
+                map(Types.BLOCK_POSITION1_8); // Location
+                map(Types.INT); // Data
                 handler(wrapper -> {
-                    int id = wrapper.get(Type.INT, 0);
-                    int data = wrapper.get(Type.INT, 1);
+                    int id = wrapper.get(Types.INT, 0);
+                    int data = wrapper.get(Types.INT, 1);
                     if (id == 1010) { // Play record
-                        wrapper.set(Type.INT, 1, protocol.getMappingData().getNewItemId(data));
+                        wrapper.set(Types.INT, 1, protocol.getMappingData().getNewItemId(data));
                     } else if (id == 2001) { // Block break + block break sound
-                        wrapper.set(Type.INT, 1, protocol.getMappingData().getNewBlockStateId(data));
+                        wrapper.set(Types.INT, 1, protocol.getMappingData().getNewBlockStateId(data));
                     } else if (id == 2000) { // Smoke
-                        switch (data) {
-                            case 0: // Down
-                            case 1: // Up
-                                Position pos = wrapper.get(Type.POSITION1_8, 0);
+                        switch (data) { // Down
+                            case 0, 1 -> { // Up
+                                Position pos = wrapper.get(Types.BLOCK_POSITION1_8, 0);
                                 BlockFace relative = data == 0 ? BlockFace.BOTTOM : BlockFace.TOP;
-                                wrapper.set(Type.POSITION1_8, 0, pos.getRelative(relative)); // Y Offset
-                                wrapper.set(Type.INT, 1, 4); // Self
-                                break;
-                            case 2: // North
-                                wrapper.set(Type.INT, 1, 1); // North
-                                break;
-                            case 3: // South
-                                wrapper.set(Type.INT, 1, 7); // South
-                                break;
-                            case 4: // West
-                                wrapper.set(Type.INT, 1, 3); // West
-                                break;
-                            case 5: // East
-                                wrapper.set(Type.INT, 1, 5); // East
-                                break;
+                                wrapper.set(Types.BLOCK_POSITION1_8, 0, pos.getRelative(relative)); // Y Offset
+                                wrapper.set(Types.INT, 1, 4); // Self
+                            }
+                            case 2 -> wrapper.set(Types.INT, 1, 1); // North
+                            case 3 -> wrapper.set(Types.INT, 1, 7); // South
+                            case 4 -> wrapper.set(Types.INT, 1, 3); // West
+                            case 5 -> wrapper.set(Types.INT, 1, 5); // East
                         }
                     }
                 });

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_2to1_13_1/Protocol1_13_2To1_13_1.java

@@ -0,0 +1,81 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viabackwards.protocol.v1_13_2to1_13_1;
+
+import com.viaversion.viabackwards.api.BackwardsProtocol;
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.rewriter.EntityPacketRewriter1_13_2;
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.rewriter.ItemPacketRewriter1_13_2;
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.rewriter.WorldPacketRewriter1_13_2;
+import com.viaversion.viaversion.api.minecraft.item.Item;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ServerboundPackets1_13;
+
+public class Protocol1_13_2To1_13_1 extends BackwardsProtocol<ClientboundPackets1_13, ClientboundPackets1_13, ServerboundPackets1_13, ServerboundPackets1_13> {
+
+    public Protocol1_13_2To1_13_1() {
+        super(ClientboundPackets1_13.class, ClientboundPackets1_13.class, ServerboundPackets1_13.class, ServerboundPackets1_13.class);
+    }
+
+    @Override
+    protected void registerPackets() {
+        ItemPacketRewriter1_13_2.register(this);
+        WorldPacketRewriter1_13_2.register(this);
+        EntityPacketRewriter1_13_2.register(this);
+
+        registerServerbound(ServerboundPackets1_13.EDIT_BOOK, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.ITEM1_13, Types.ITEM1_13_2);
+            }
+        });
+
+        registerClientbound(ClientboundPackets1_13.UPDATE_ADVANCEMENTS, wrapper -> {
+            wrapper.passthrough(Types.BOOLEAN); // Reset/clear
+            int size = wrapper.passthrough(Types.VAR_INT); // Mapping size
+
+            for (int i = 0; i < size; i++) {
+                wrapper.passthrough(Types.STRING); // Identifier
+                wrapper.passthrough(Types.OPTIONAL_STRING); // Parent
+
+                // Display data
+                if (wrapper.passthrough(Types.BOOLEAN)) {
+                    wrapper.passthrough(Types.COMPONENT); // Title
+                    wrapper.passthrough(Types.COMPONENT); // Description
+                    Item icon = wrapper.read(Types.ITEM1_13_2);
+                    wrapper.write(Types.ITEM1_13, icon);
+                    wrapper.passthrough(Types.VAR_INT); // Frame type
+                    int flags = wrapper.passthrough(Types.INT); // Flags
+                    if ((flags & 1) != 0)
+                        wrapper.passthrough(Types.STRING); // Background texture
+                    wrapper.passthrough(Types.FLOAT); // X
+                    wrapper.passthrough(Types.FLOAT); // Y
+                }
+
+                wrapper.passthrough(Types.STRING_ARRAY); // Criteria
+
+                int arrayLength = wrapper.passthrough(Types.VAR_INT);
+                for (int array = 0; array < arrayLength; array++) {
+                    wrapper.passthrough(Types.STRING_ARRAY); // String array
+                }
+            }
+        });
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_2to1_13_1/rewriter/EntityPacketRewriter1_13_2.java

@@ -0,0 +1,93 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.rewriter;
+
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.Protocol1_13_2To1_13_1;
+import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.api.type.types.version.Types1_13;
+import com.viaversion.viaversion.api.type.types.version.Types1_13_2;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+
+public class EntityPacketRewriter1_13_2 {
+
+
+    public static void register(Protocol1_13_2To1_13_1 protocol) {
+        protocol.registerClientbound(ClientboundPackets1_13.ADD_MOB, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Entity UUID
+                map(Types.VAR_INT); // 2 - Entity Type
+                map(Types.DOUBLE); // 3 - X
+                map(Types.DOUBLE); // 4 - Y
+                map(Types.DOUBLE); // 5 - Z
+                map(Types.BYTE); // 6 - Yaw
+                map(Types.BYTE); // 7 - Pitch
+                map(Types.BYTE); // 8 - Head Pitch
+                map(Types.SHORT); // 9 - Velocity X
+                map(Types.SHORT); // 10 - Velocity Y
+                map(Types.SHORT); // 11 - Velocity Z
+                map(Types1_13_2.ENTITY_DATA_LIST, Types1_13.ENTITY_DATA_LIST); // 12 - Metadata
+
+                handler(wrapper -> {
+                    for (EntityData metadata : wrapper.get(Types1_13.ENTITY_DATA_LIST, 0)) {
+                        metadata.setDataType(Types1_13.ENTITY_DATA_TYPES.byId(metadata.dataType().typeId()));
+                    }
+                });
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.ADD_PLAYER, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.UUID); // 1 - Player UUID
+                map(Types.DOUBLE); // 2 - X
+                map(Types.DOUBLE); // 3 - Y
+                map(Types.DOUBLE); // 4 - Z
+                map(Types.BYTE); // 5 - Yaw
+                map(Types.BYTE); // 6 - Pitch
+                map(Types1_13_2.ENTITY_DATA_LIST, Types1_13.ENTITY_DATA_LIST); // 7 - Metadata
+
+                handler(wrapper -> {
+                    for (EntityData metadata : wrapper.get(Types1_13.ENTITY_DATA_LIST, 0)) {
+                        metadata.setDataType(Types1_13.ENTITY_DATA_TYPES.byId(metadata.dataType().typeId()));
+                    }
+                });
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.SET_ENTITY_DATA, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types1_13_2.ENTITY_DATA_LIST, Types1_13.ENTITY_DATA_LIST); // 1 - Metadata list
+
+                handler(wrapper -> {
+                    for (EntityData metadata : wrapper.get(Types1_13.ENTITY_DATA_LIST, 0)) {
+                        metadata.setDataType(Types1_13.ENTITY_DATA_TYPES.byId(metadata.dataType().typeId()));
+                    }
+                });
+            }
+        });
+    }
+
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_2to1_13_1/rewriter/ItemPacketRewriter1_13_2.java

@@ -0,0 +1,137 @@
+/*
+ * This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.rewriter;
+
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.Protocol1_13_2To1_13_1;
+import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
+import com.viaversion.viaversion.api.type.Type;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ServerboundPackets1_13;
+
+public class ItemPacketRewriter1_13_2 {
+
+    public static void register(Protocol1_13_2To1_13_1 protocol) {
+        protocol.registerClientbound(ClientboundPackets1_13.CONTAINER_SET_SLOT, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.SHORT); // 1 - Slot ID
+                map(Types.ITEM1_13_2, Types.ITEM1_13); // 2 - Slot Value
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.CONTAINER_SET_CONTENT, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.ITEM1_13_2_SHORT_ARRAY, Types.ITEM1_13_SHORT_ARRAY); // 1 - Window Values
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.CUSTOM_PAYLOAD, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.STRING); // Channel
+                handler(wrapper -> {
+                    String channel = wrapper.get(Types.STRING, 0);
+                    if (channel.equals("minecraft:trader_list") || channel.equals("trader_list")) {
+                        wrapper.passthrough(Types.INT); // Passthrough Window ID
+
+                        int size = wrapper.passthrough(Types.UNSIGNED_BYTE);
+                        for (int i = 0; i < size; i++) {
+                            // Input Item
+                            wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
+                            // Output Item
+                            wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
+
+                            boolean secondItem = wrapper.passthrough(Types.BOOLEAN); // Has second item
+                            if (secondItem) {
+                                wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
+                            }
+
+                            wrapper.passthrough(Types.BOOLEAN); // Trade disabled
+                            wrapper.passthrough(Types.INT); // Number of tools uses
+                            wrapper.passthrough(Types.INT); // Maximum number of trade uses
+                        }
+                    }
+                });
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.SET_EQUIPPED_ITEM, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.VAR_INT); // 0 - Entity ID
+                map(Types.VAR_INT); // 1 - Slot ID
+                map(Types.ITEM1_13_2, Types.ITEM1_13); // 2 - Item
+            }
+        });
+
+        protocol.registerClientbound(ClientboundPackets1_13.UPDATE_RECIPES, wrapper -> {
+            int recipesNo = wrapper.passthrough(Types.VAR_INT);
+            for (int i = 0; i < recipesNo; i++) {
+                wrapper.passthrough(Types.STRING); // Id
+                String type = wrapper.passthrough(Types.STRING);
+                if (type.equals("crafting_shapeless")) {
+                    wrapper.passthrough(Types.STRING); // Group
+                    int ingredientsNo = wrapper.passthrough(Types.VAR_INT);
+                    for (int i1 = 0; i1 < ingredientsNo; i1++) {
+                        wrapper.write(Types.ITEM1_13_ARRAY, wrapper.read(Types.ITEM1_13_2_ARRAY));
+                    }
+                    wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
+                } else if (type.equals("crafting_shaped")) {
+                    int ingredientsNo = wrapper.passthrough(Types.VAR_INT) * wrapper.passthrough(Types.VAR_INT);
+                    wrapper.passthrough(Types.STRING); // Group
+                    for (int i1 = 0; i1 < ingredientsNo; i1++) {
+                        wrapper.write(Types.ITEM1_13_ARRAY, wrapper.read(Types.ITEM1_13_2_ARRAY));
+                    }
+                    wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
+                } else if (type.equals("smelting")) {
+                    wrapper.passthrough(Types.STRING); // Group
+                    // Ingredient start
+                    wrapper.write(Types.ITEM1_13_ARRAY, wrapper.read(Types.ITEM1_13_2_ARRAY));
+                    // Ingredient end
+                    wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
+                    wrapper.passthrough(Types.FLOAT); // EXP
+                    wrapper.passthrough(Types.VAR_INT); // Cooking time
+                }
+            }
+        });
+
+        protocol.registerServerbound(ServerboundPackets1_13.CONTAINER_CLICK, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.UNSIGNED_BYTE); // 0 - Window ID
+                map(Types.SHORT); // 1 - Slot
+                map(Types.BYTE); // 2 - Button
+                map(Types.SHORT); // 3 - Action number
+                map(Types.VAR_INT); // 4 - Mode
+                map(Types.ITEM1_13, Types.ITEM1_13_2); // 5 - Clicked Item
+            }
+        });
+
+        protocol.registerServerbound(ServerboundPackets1_13.SET_CREATIVE_MODE_SLOT, new PacketHandlers() {
+            @Override
+            public void register() {
+                map(Types.SHORT); // 0 - Slot
+                map(Types.ITEM1_13, Types.ITEM1_13_2); // 1 - Clicked Item
+            }
+        });
+    }
+}

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13_2to1_13_1/rewriter/WorldPacketRewriter1_13_2.java

@@ -15,34 +15,35 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.packets;
+package com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.rewriter;
 
-import com.viaversion.viabackwards.protocol.protocol1_13_1to1_13_2.Protocol1_13_1To1_13_2;
+import com.viaversion.viabackwards.protocol.v1_13_2to1_13_1.Protocol1_13_2To1_13_1;
 import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
 import com.viaversion.viaversion.api.type.Type;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
+import com.viaversion.viaversion.api.type.Types;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
 
-public class WorldPackets1_13_2 {
+public class WorldPacketRewriter1_13_2 {
 
-    public static void register(Protocol1_13_1To1_13_2 protocol) {
-        protocol.registerClientbound(ClientboundPackets1_13.SPAWN_PARTICLE, new PacketHandlers() {
+    public static void register(Protocol1_13_2To1_13_1 protocol) {
+        protocol.registerClientbound(ClientboundPackets1_13.LEVEL_PARTICLES, new PacketHandlers() {
             @Override
             public void register() {
-                map(Type.INT); // 0 - Particle ID
-                map(Type.BOOLEAN); // 1 - Long Distance
-                map(Type.FLOAT); // 2 - X
-                map(Type.FLOAT); // 3 - Y
-                map(Type.FLOAT); // 4 - Z
-                map(Type.FLOAT); // 5 - Offset X
-                map(Type.FLOAT); // 6 - Offset Y
-                map(Type.FLOAT); // 7 - Offset Z
-                map(Type.FLOAT); // 8 - Particle Data
-                map(Type.INT); // 9 - Particle Count
+                map(Types.INT); // 0 - Particle ID
+                map(Types.BOOLEAN); // 1 - Long Distance
+                map(Types.FLOAT); // 2 - X
+                map(Types.FLOAT); // 3 - Y
+                map(Types.FLOAT); // 4 - Z
+                map(Types.FLOAT); // 5 - Offset X
+                map(Types.FLOAT); // 6 - Offset Y
+                map(Types.FLOAT); // 7 - Offset Z
+                map(Types.FLOAT); // 8 - Particle Data
+                map(Types.INT); // 9 - Particle Count
 
                 handler(wrapper -> {
-                    int id = wrapper.get(Type.INT, 0);
+                    int id = wrapper.get(Types.INT, 0);
                     if (id == 27) {
-                        wrapper.write(Type.ITEM1_13, wrapper.read(Type.ITEM1_13_2));
+                        wrapper.write(Types.ITEM1_13, wrapper.read(Types.ITEM1_13_2));
                     }
                 });
             }

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/Protocol1_13To1_12_2.java

@@ -16,22 +16,22 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2;
 
 import com.viaversion.viabackwards.ViaBackwards;
 import com.viaversion.viabackwards.api.BackwardsProtocol;
 import com.viaversion.viabackwards.api.rewriters.TranslatableRewriter;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.data.BackwardsMappings;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.data.PaintingMapping;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.packets.BlockItemPackets1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.packets.EntityPackets1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.packets.PlayerPacket1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.packets.SoundPackets1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.storage.BackwardsBlockStorage;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.storage.NoteBlockStorage;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.storage.PlayerPositionStorage1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.storage.TabCompleteStorage;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.data.BackwardsMappingData1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.data.PaintingNames1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.rewriter.BlockItemPacketRewriter1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.rewriter.EntityPacketRewriter1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.rewriter.PlayerPacketRewriter1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.rewriter.SoundPacketRewriter1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.storage.BackwardsBlockStorage;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.storage.NoteBlockStorage;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.storage.PlayerPositionStorage1_13;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.storage.TabCompleteStorage;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.connection.UserConnection;
 import com.viaversion.viaversion.api.minecraft.ClientWorld;
@@ -40,21 +40,23 @@ import com.viaversion.viaversion.data.entity.EntityTrackerBase;
 import com.viaversion.viaversion.libs.gson.JsonElement;
 import com.viaversion.viaversion.libs.gson.JsonObject;
 import com.viaversion.viaversion.libs.gson.JsonParser;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ClientboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_12_1to1_12.ServerboundPackets1_12_1;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.Protocol1_13To1_12_2;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ServerboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ClientboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.packet.ServerboundPackets1_13;
+import com.viaversion.viaversion.protocols.v1_12to1_12_1.packet.ClientboundPackets1_12_1;
+import com.viaversion.viaversion.protocols.v1_12to1_12_1.packet.ServerboundPackets1_12_1;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.Protocol1_12_2To1_13;
 import com.viaversion.viaversion.rewriter.ComponentRewriter;
 import com.viaversion.viaversion.util.ComponentUtil;
+import com.viaversion.viaversion.util.ProtocolLogger;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
-public class Protocol1_12_2To1_13 extends BackwardsProtocol<ClientboundPackets1_13, ClientboundPackets1_12_1, ServerboundPackets1_13, ServerboundPackets1_12_1> {
+public class Protocol1_13To1_12_2 extends BackwardsProtocol<ClientboundPackets1_13, ClientboundPackets1_12_1, ServerboundPackets1_13, ServerboundPackets1_12_1> {
 
-    public static final BackwardsMappings MAPPINGS = new BackwardsMappings();
-    private final EntityPackets1_13 entityRewriter = new EntityPackets1_13(this);
-    private final BlockItemPackets1_13 blockItemPackets = new BlockItemPackets1_13(this);
-    private final TranslatableRewriter<ClientboundPackets1_13> translatableRewriter = new TranslatableRewriter<ClientboundPackets1_13>(this, ComponentRewriter.ReadType.JSON) {
+    public static final BackwardsMappingData1_13 MAPPINGS = new BackwardsMappingData1_13();
+    public static final ProtocolLogger LOGGER = new ProtocolLogger(Protocol1_13To1_12_2.class);
+    private final EntityPacketRewriter1_13 entityRewriter = new EntityPacketRewriter1_13(this);
+    private final BlockItemPacketRewriter1_13 blockItemPackets = new BlockItemPacketRewriter1_13(this);
+    private final TranslatableRewriter<ClientboundPackets1_13> translatableRewriter = new TranslatableRewriter<>(this, ComponentRewriter.ReadType.JSON) {
         @Override
         protected void handleTranslate(JsonObject root, String translate) {
             String mappedKey = mappedTranslationKey(translate);
@@ -63,51 +65,51 @@ public class Protocol1_12_2To1_13 extends BackwardsProtocol<ClientboundPackets1_
             }
         }
     };
-    private final TranslatableRewriter<ClientboundPackets1_13> translatableToLegacyRewriter = new TranslatableRewriter<ClientboundPackets1_13>(this, ComponentRewriter.ReadType.JSON) {
+    private final TranslatableRewriter<ClientboundPackets1_13> translatableToLegacyRewriter = new TranslatableRewriter<>(this, ComponentRewriter.ReadType.JSON) {
         @Override
         protected void handleTranslate(JsonObject root, String translate) {
             String mappedKey = mappedTranslationKey(translate);
             if (mappedKey != null || (mappedKey = getMappingData().getTranslateMappings().get(translate)) != null) {
-                root.addProperty("translate", Protocol1_13To1_12_2.MAPPINGS.getMojangTranslation().getOrDefault(mappedKey, mappedKey));
+                root.addProperty("translate", Protocol1_12_2To1_13.MAPPINGS.getMojangTranslation().getOrDefault(mappedKey, mappedKey));
             }
         }
     };
 
-    public Protocol1_12_2To1_13() {
+    public Protocol1_13To1_12_2() {
         super(ClientboundPackets1_13.class, ClientboundPackets1_12_1.class, ServerboundPackets1_13.class, ServerboundPackets1_12_1.class);
     }
 
     @Override
     protected void registerPackets() {
-        executeAsyncAfterLoaded(Protocol1_13To1_12_2.class, () -> {
+        executeAsyncAfterLoaded(Protocol1_12_2To1_13.class, () -> {
             MAPPINGS.load();
-            PaintingMapping.init();
+            PaintingNames1_13.init();
             Via.getManager().getProviders().register(BackwardsBlockEntityProvider.class, new BackwardsBlockEntityProvider());
         });
 
         translatableRewriter.registerPing();
-        translatableRewriter.registerBossBar(ClientboundPackets1_13.BOSSBAR);
-        translatableRewriter.registerComponentPacket(ClientboundPackets1_13.CHAT_MESSAGE);
-        translatableRewriter.registerLegacyOpenWindow(ClientboundPackets1_13.OPEN_WINDOW);
+        translatableRewriter.registerBossEvent(ClientboundPackets1_13.BOSS_EVENT);
+        translatableRewriter.registerComponentPacket(ClientboundPackets1_13.CHAT);
+        translatableRewriter.registerLegacyOpenWindow(ClientboundPackets1_13.OPEN_SCREEN);
         translatableRewriter.registerComponentPacket(ClientboundPackets1_13.DISCONNECT);
-        translatableRewriter.registerCombatEvent(ClientboundPackets1_13.COMBAT_EVENT);
-        translatableRewriter.registerTitle(ClientboundPackets1_13.TITLE);
+        translatableRewriter.registerPlayerCombat(ClientboundPackets1_13.PLAYER_COMBAT);
+        translatableRewriter.registerTitle(ClientboundPackets1_13.SET_TITLES);
         translatableRewriter.registerTabList(ClientboundPackets1_13.TAB_LIST);
 
         blockItemPackets.register();
         entityRewriter.register();
-        new PlayerPacket1_13(this).register();
-        new SoundPackets1_13(this).register();
+        new PlayerPacketRewriter1_13(this).register();
+        new SoundPacketRewriter1_13(this).register();
 
-        cancelClientbound(ClientboundPackets1_13.NBT_QUERY);
-        cancelClientbound(ClientboundPackets1_13.CRAFT_RECIPE_RESPONSE);
-        cancelClientbound(ClientboundPackets1_13.UNLOCK_RECIPES);
-        cancelClientbound(ClientboundPackets1_13.ADVANCEMENTS);
-        cancelClientbound(ClientboundPackets1_13.DECLARE_RECIPES);
-        cancelClientbound(ClientboundPackets1_13.TAGS);
+        cancelClientbound(ClientboundPackets1_13.TAG_QUERY);
+        cancelClientbound(ClientboundPackets1_13.PLACE_GHOST_RECIPE);
+        cancelClientbound(ClientboundPackets1_13.RECIPE);
+        cancelClientbound(ClientboundPackets1_13.UPDATE_ADVANCEMENTS);
+        cancelClientbound(ClientboundPackets1_13.UPDATE_RECIPES);
+        cancelClientbound(ClientboundPackets1_13.UPDATE_TAGS);
 
-        cancelServerbound(ServerboundPackets1_12_1.CRAFT_RECIPE_REQUEST);
-        cancelServerbound(ServerboundPackets1_12_1.RECIPE_BOOK_DATA);
+        cancelServerbound(ServerboundPackets1_12_1.PLACE_RECIPE);
+        cancelServerbound(ServerboundPackets1_12_1.RECIPE_BOOK_UPDATE);
     }
 
     @Override
@@ -129,17 +131,22 @@ public class Protocol1_12_2To1_13 extends BackwardsProtocol<ClientboundPackets1_
     }
 
     @Override
-    public BackwardsMappings getMappingData() {
+    public BackwardsMappingData1_13 getMappingData() {
         return MAPPINGS;
     }
 
     @Override
-    public EntityPackets1_13 getEntityRewriter() {
+    public ProtocolLogger getLogger() {
+        return LOGGER;
+    }
+
+    @Override
+    public EntityPacketRewriter1_13 getEntityRewriter() {
         return entityRewriter;
     }
 
     @Override
-    public BlockItemPackets1_13 getItemRewriter() {
+    public BlockItemPacketRewriter1_13 getItemRewriter() {
         return blockItemPackets;
     }
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/block_entity_handlers/BannerHandler.java

@@ -16,14 +16,13 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.block_entity_handlers;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.block_entity_handlers;
 
-import com.viaversion.viabackwards.ViaBackwards;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider.BackwardsBlockEntityHandler;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.NumberTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.Protocol1_13To1_12_2;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider.BackwardsBlockEntityHandler;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.NumberTag;
 
 public class BannerHandler implements BackwardsBlockEntityHandler {
     private static final int WALL_BANNER_START = 7110; // 4 each
@@ -44,7 +43,7 @@ public class BannerHandler implements BackwardsBlockEntityHandler {
             int color = (blockId - WALL_BANNER_START) >> 2;
             tag.putInt("Base", 15 - color);
         } else {
-            ViaBackwards.getPlatform().getLogger().warning("Why does this block have the banner block entity? :(" + tag);
+            Protocol1_13To1_12_2.LOGGER.warning("Why does this block have the banner block entity? :(" + tag);
         }
 
         // Invert colors

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/block_entity_handlers/BedHandler.java

@@ -16,10 +16,10 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.block_entity_handlers;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.block_entity_handlers;
 
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider;
+import com.viaversion.nbt.tag.CompoundTag;
 
 public class BedHandler implements BackwardsBlockEntityProvider.BackwardsBlockEntityHandler {
 

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/block_entity_handlers/FlowerPotHandler.java

@@ -16,12 +16,12 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.block_entity_handlers;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.block_entity_handlers;
 
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectOpenHashMap;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
+import com.viaversion.nbt.tag.CompoundTag;
 import com.viaversion.viaversion.util.Pair;
 
 public class FlowerPotHandler implements BackwardsBlockEntityProvider.BackwardsBlockEntityHandler {

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/block_entity_handlers/PistonHandler.java

@@ -15,19 +15,19 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.block_entity_handlers;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.block_entity_handlers;
 
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.Protocol1_12_2To1_13;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.Protocol1_13To1_12_2;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider;
 import com.viaversion.viaversion.api.Via;
 import com.viaversion.viaversion.api.data.MappingDataLoader;
 import com.viaversion.viaversion.libs.fastutil.objects.Object2IntMap;
 import com.viaversion.viaversion.libs.fastutil.objects.Object2IntOpenHashMap;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.ListTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.Tag;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.blockconnections.ConnectionData;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.ListTag;
+import com.viaversion.nbt.tag.StringTag;
+import com.viaversion.nbt.tag.Tag;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.blockconnections.ConnectionData;
 import java.util.Map;
 import java.util.StringJoiner;
 
@@ -62,7 +62,7 @@ public class PistonHandler implements BackwardsBlockEntityProvider.BackwardsBloc
 
     // There doesn't seem to be a nicer way around it :(
     private void addEntries(String data, int id) {
-        id = Protocol1_12_2To1_13.MAPPINGS.getNewBlockStateId(id);
+        id = Protocol1_13To1_12_2.MAPPINGS.getNewBlockStateId(id);
         pistonIds.put(data, id);
 
         String substring = data.substring(10);

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/block_entity_handlers/SkullHandler.java

@@ -16,10 +16,10 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.block_entity_handlers;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.block_entity_handlers;
 
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider.BackwardsBlockEntityHandler;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider.BackwardsBlockEntityHandler;
+import com.viaversion.nbt.tag.CompoundTag;
 
 public class SkullHandler implements BackwardsBlockEntityHandler {
     private static final int SKULL_START = 5447;

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/block_entity_handlers/SpawnerHandler.java

@@ -16,12 +16,12 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.block_entity_handlers;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.block_entity_handlers;
 
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.data.EntityNameRewrites;
-import com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.providers.BackwardsBlockEntityProvider;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.StringTag;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.data.EntityNameMappings1_12_2;
+import com.viaversion.viabackwards.protocol.v1_13to1_12_2.provider.BackwardsBlockEntityProvider;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.nbt.tag.StringTag;
 
 public class SpawnerHandler implements BackwardsBlockEntityProvider.BackwardsBlockEntityHandler {
 
@@ -31,7 +31,7 @@ public class SpawnerHandler implements BackwardsBlockEntityProvider.BackwardsBlo
         if (dataTag != null) {
             StringTag idTag = dataTag.getStringTag("id");
             if (idTag != null) {
-                idTag.setValue(EntityNameRewrites.rewrite(idTag.getValue()));
+                idTag.setValue(EntityNameMappings1_12_2.rewrite(idTag.getValue()));
             }
         }
         return tag;

common/src/main/java/com/viaversion/viabackwards/protocol/v1_13to1_12_2/data/BackwardsMappingData1_13.java

@@ -16,32 +16,33 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-package com.viaversion.viabackwards.protocol.protocol1_12_2to1_13.data;
+package com.viaversion.viabackwards.protocol.v1_13to1_12_2.data;
 
+import com.viaversion.viabackwards.api.data.BackwardsMappingData;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectMap;
 import com.viaversion.viaversion.libs.fastutil.ints.Int2ObjectOpenHashMap;
-import com.viaversion.viaversion.libs.opennbt.tag.builtin.CompoundTag;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.Protocol1_13To1_12_2;
-import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.data.StatisticMappings;
+import com.viaversion.nbt.tag.CompoundTag;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.Protocol1_12_2To1_13;
+import com.viaversion.viaversion.protocols.v1_12_2to1_13.data.StatisticMappings1_13;
 import java.util.HashMap;
 import java.util.Map;
 
-public class BackwardsMappings extends com.viaversion.viabackwards.api.data.BackwardsMappings {
+public class BackwardsMappingData1_13 extends BackwardsMappingData {
     private final Int2ObjectMap<String> statisticMappings = new Int2ObjectOpenHashMap<>();
     private final Map<String, String> translateMappings = new HashMap<>();
 
-    public BackwardsMappings() {
-        super("1.13", "1.12", Protocol1_13To1_12_2.class);
+    public BackwardsMappingData1_13() {
+        super("1.13", "1.12", Protocol1_12_2To1_13.class);
     }
 
     @Override
     public void loadExtras(final CompoundTag data) {
         super.loadExtras(data);
 
-        for (Map.Entry<String, Integer> entry : StatisticMappings.CUSTOM_STATS.entrySet()) {
+        for (Map.Entry<String, Integer> entry : StatisticMappings1_13.CUSTOM_STATS.entrySet()) {
             statisticMappings.put(entry.getValue().intValue(), entry.getKey());
         }
-        for (Map.Entry<String, String> entry : Protocol1_13To1_12_2.MAPPINGS.getTranslateMapping().entrySet()) {
+        for (Map.Entry<String, String> entry : Protocol1_12_2To1_13.MAPPINGS.getTranslateMapping().entrySet()) {
             translateMappings.put(entry.getValue(), entry.getKey());
         }
     }
@@ -64,18 +65,11 @@ public class BackwardsMappings extends com.viaversion.viabackwards.api.data.Back
         int mappedId = super.getNewBlockStateId(id);
 
         // https://github.com/ViaVersion/ViaBackwards/issues/290
-        switch (mappedId) {
-            case 1595:
-            case 1596:
-            case 1597:
-                return 1584; // brown mushroom block
-            case 1611:
-            case 1612:
-            case 1613:
-                return 1600; // red mushroom block
-            default:
-                return mappedId;
-        }
+        return switch (mappedId) {
+            case 1595, 1596, 1597 -> 1584; // brown mushroom block
+            case 1611, 1612, 1613 -> 1600; // red mushroom block
+            default -> mappedId;
+        };
     }
 
     @Override