Upstream/ViaVersion
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Replace nms code with fancy library and own code.

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This commit is contained in:
Paulomart 2016-03-03 21:13:49 +01:00
parent 64c2ba243f
commit 00df80e6fd
5 changed files with 197 additions and 154 deletions
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39
pom.xml
View File

@ -1,7 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>us.myles</groupId>
@ -9,6 +8,22 @@
<version>0.4.6</version>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<version>1.4</version>
<configuration>
<createDependencyReducedPom>false</createDependencyReducedPom>
</configuration>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
@ -26,12 +41,12 @@
</resources>
</build>
<dependencies>
<dependency>
<groupId>org.spigotmc</groupId>
<artifactId>spigot</artifactId>
<version>1.8.8-R0.1-SNAPSHOT</version>
</dependency>
<dependency>
<dependency>
<groupId>org.spacehq</groupId>
<artifactId>opennbt</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.bukkit</groupId>
<artifactId>bukkit</artifactId>
<version>1.8.8-R0.1-SNAPSHOT</version>
@ -61,5 +76,9 @@
<id>spigot-repo</id>
<url>https://hub.spigotmc.org/nexus/content/repositories/snapshots/</url>
</repository>
</repositories>
<repository>
<id>spacehq-repo</id>
<url>https://repo.spacehq.org/content/repositories/releases/</url>
</repository>
</repositories>
</project>

243
src/main/java/us/myles/ViaVersion/api/slot/ItemSlotRewriter.java
View File

@ -1,33 +1,23 @@
package us.myles.ViaVersion.api.slot;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import org.bukkit.Material;
import net.minecraft.server.v1_8_R3.EntityTypes;
import net.minecraft.server.v1_8_R3.Item;
import net.minecraft.server.v1_8_R3.ItemStack;
import net.minecraft.server.v1_8_R3.MobEffect;
import net.minecraft.server.v1_8_R3.MobEffectList;
import net.minecraft.server.v1_8_R3.NBTTagCompound;
import net.minecraft.server.v1_8_R3.PotionBrewer;
import org.spacehq.opennbt.tag.builtin.CompoundTag;
import org.spacehq.opennbt.tag.builtin.StringTag;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion.CancelException;
import us.myles.ViaVersion.util.ReflectionUtil;
import us.myles.ViaVersion.util.PacketUtil;
public class ItemSlotRewriter {
public static void rewrite1_9To1_8(ByteBuf input, ByteBuf output) throws CancelException {
try {
Object item = readItemStack(input);
ItemStack item = readItemStack(input);
fixIdsFrom1_9To1_8(item);
writeItemStack(item, output);
} catch (Exception e) {
@ -39,7 +29,7 @@ public class ItemSlotRewriter {
public static void rewrite1_8To1_9(ByteBuf input, ByteBuf output) throws CancelException {
try {
Object item = readItemStack(input);
ItemStack item = readItemStack(input);
fixIdsFrom1_8To1_9(item);
writeItemStack(item, output);
} catch (Exception e) {
@ -49,120 +39,153 @@ public class ItemSlotRewriter {
}
}
public static void fixIdsFrom1_9To1_8(Object itemstack) throws NoSuchFieldException, IllegalAccessException {
if (itemstack != null) {
ItemStack stack = (ItemStack) itemstack;
int itemId = Item.getId(stack.getItem());
if (itemId == Material.MONSTER_EGG.getId() && stack.getData() == 0) {
NBTTagCompound tag = stack.getTag();
public static void fixIdsFrom1_9To1_8(ItemStack item) {
if (item != null) {
if (item.id == Material.MONSTER_EGG.getId() && item.data == 0) {
CompoundTag tag = item.tag;
int data = 0;
if (tag != null && tag.hasKeyOfType("EntityTag", 10)) {
NBTTagCompound entityTag = tag.getCompound("EntityTag");
if (entityTag.hasKeyOfType("id", 8)) {
String id = entityTag.getString("id");
Map<String, Integer> g = (Map<String, Integer>) ReflectionUtil.getStatic(EntityTypes.class, "g", Map.class);
data = g.get(id);
if (tag != null && tag.get("EntityTag") instanceof CompoundTag) {
CompoundTag entityTag = tag.get("EntityTag");
if (entityTag.get("id") instanceof StringTag) {
StringTag id = entityTag.get("id");
data = ENTTIY_NAME_TO_ID.get(id.getValue());
}
}
stack.setTag(null);
stack.setData(data);
} else if (itemId == Material.POTION.getId() && stack.getData() == 0) {
NBTTagCompound tag = stack.getTag();
if (tag != null) {
System.out.println("in: " + tag);
}
item.tag = null;
item.data = (short) data;
}
}
}
public static void fixIdsFrom1_8To1_9(Object itemstack) {
if (itemstack != null) {
ItemStack stack = (ItemStack) itemstack;
int itemId = Item.getId(stack.getItem());
if (itemId == Material.MONSTER_EGG.getId() && stack.getData() != 0) {
NBTTagCompound tag = stack.getTag();
public static void fixIdsFrom1_8To1_9(ItemStack item) {
if (item != null) {
if (item.id == Material.MONSTER_EGG.getId() && item.data != 0) {
CompoundTag tag = item.tag;
if (tag == null) {
tag = new NBTTagCompound();
}
NBTTagCompound entityTag = new NBTTagCompound();
entityTag.setString("id", EntityTypes.b(stack.getData()));
tag.set("EntityTag", entityTag);
stack.setTag(tag);
stack.setData(0);
} else if (itemId == Material.POTION.getId() && stack.getData() != 0) {
NBTTagCompound tag = stack.getTag();
if (tag == null) {
tag = new NBTTagCompound();
stack.setTag(tag);
}
try {
List<MobEffect> effects = PotionBrewer.getEffects(stack.getData(), true);
if (effects != null && effects.size() >= 1) {
MobEffect effect = effects.get(0);
MobEffectList type = MobEffectList.byId[effect.getEffectId()];
StringBuilder name = new StringBuilder();
System.out.println(effect.getDuration() + " ?>? " +type.k());
if (effect.getAmplifier() > 0) {
name.append("strong_");
} else if (effect.getDuration() > type.k()) {
name.append("long_");
}
name.append(POTION_TYPE_TO_KEY.get(effect.getEffectId()));
System.out.println("Rewriting to: " + name.toString());
tag.setString("Potion", name.toString());
} else {
System.out.println("Falling back to water for subId: " + stack.getData());
tag.setString("Potion", "water");
}
} catch (Exception e) {
e.printStackTrace();
tag = new CompoundTag("tag");
}
CompoundTag entityTag = new CompoundTag("EntityTag");
StringTag id = new StringTag("id", ENTTIY_ID_TO_NAME.get(item.data));
entityTag.put(id);
tag.put(entityTag);
item.tag = tag;
item.data = 0;
}
}
}
public static Object readItemStack(ByteBuf input) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
Object serializer = getPacketDataSerializer(input);
return READ_ITEM.invoke(serializer);
public static ItemStack readItemStack(ByteBuf input) throws IOException {
short id = input.readShort();
if (id < 0) {
return null;
} else {
ItemStack item = new ItemStack();
item.id = id;
item.amount = input.readByte();
item.data = input.readShort();
item.tag = PacketUtil.readNBT(input);
return item;
}
}
public static void writeItemStack(Object itemstack, ByteBuf output) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
Object serializer = getPacketDataSerializer(output);
WRITE_ITEM.invoke(serializer, itemstack);
public static void writeItemStack(ItemStack item, ByteBuf output) throws IOException {
if (item == null) {
output.writeShort(-1);
} else {
output.writeShort(item.id);
output.writeByte(item.amount);
output.writeShort(item.data);
PacketUtil.writeNBT(output, item.tag);
}
}
private static final Map<Integer, String> POTION_TYPE_TO_KEY = new HashMap<>();
private static Constructor<?> SERIALIZER_CONSTRUCTOR;
private static Method WRITE_ITEM;
private static Method READ_ITEM;
public static class ItemStack {
private short id;
private byte amount;
private short data;
private CompoundTag tag;
public static ItemStack fromBukkit(org.bukkit.inventory.ItemStack stack) {
ItemStack item = new ItemStack();
item.id = (short) stack.getTypeId();
item.amount = (byte) stack.getAmount();
item.data = stack.getData().getData();
// TODO: nbt
return item;
}
}
private static Map<String, Integer> ENTTIY_NAME_TO_ID = new HashMap<>();
private static Map<Integer, String> ENTTIY_ID_TO_NAME = new HashMap<>();
static {
try {
Class<?> list = ReflectionUtil.nms("MobEffectList");
Map<Object, Object> map = ReflectionUtil.getStatic(list, "I", Map.class);
for (Entry<Object, Object> e : map.entrySet()) {
System.out.println(e.getValue());
System.out.println(e.getValue().getClass());
int id = ReflectionUtil.get(e.getValue(), list, "id", int.class);
String type = ReflectionUtil.get(e.getKey(), "b", String.class);
POTION_TYPE_TO_KEY.put(id, type);
}
} catch (NoSuchFieldException | IllegalAccessException | ClassNotFoundException e1) {
e1.printStackTrace();
}
try {
Class<?> serializer = ReflectionUtil.nms("PacketDataSerializer");
Class<?> itemStack = ReflectionUtil.nms("ItemStack");
SERIALIZER_CONSTRUCTOR = serializer.getDeclaredConstructor(ByteBuf.class);
WRITE_ITEM = serializer.getDeclaredMethod("a", itemStack);
READ_ITEM = serializer.getDeclaredMethod("i");
} catch (ClassNotFoundException | NoSuchMethodException | SecurityException e) {
e.printStackTrace();
}
register(1, "Item");
register(2, "XPOrb");
register(7, "ThrownEgg");
register(8, "LeashKnot");
register(9, "Painting");
register(10, "Arrow");
register(11, "Snowball");
register(12, "Fireball");
register(13, "SmallFireball");
register(14, "ThrownEnderpearl");
register(15, "EyeOfEnderSignal");
register(16, "ThrownPotion");
register(17, "ThrownExpBottle");
register(18, "ItemFrame");
register(19, "WitherSkull");
register(20, "PrimedTnt");
register(21, "FallingSand");
register(22, "FireworksRocketEntity");
register(30, "ArmorStand");
register(40, "MinecartCommandBlock");
register(41, "Boat");
register(42, "MinecartRideable");
register(43, "MinecartChest");
register(44, "MinecartFurnace");
register(45, "MinecartTNT");
register(46, "MinecartHopper");
register(47, "MinecartSpawner");
register(48, "Mob");
register(49, "Monster");
register(50, "Creeper");
register(51, "Skeleton");
register(52, "Spider");
register(53, "Giant");
register(54, "Zombie");
register(55, "Slime");
register(56, "Ghast");
register(57, "PigZombie");
register(58, "Enderman");
register(59, "CaveSpider");
register(60, "Silverfish");
register(61, "Blaze");
register(62, "LavaSlime");
register(63, "EnderDragon");
register(64, "WitherBoss");
register(65, "Bat");
register(66, "Witch");
register(67, "Endermite");
register(68, "Guardian");
register(90, "Pig");
register(91, "Sheep");
register(92, "Cow");
register(93, "Chicken");
register(94, "Squid");
register(95, "Wolf");
register(96, "MushroomCow");
register(97, "SnowMan");
register(98, "Ozelot");
register(99, "VillagerGolem");
register(100, "EntityHorse");
register(101, "Rabbit");
register(120, "Villager");
register(200, "EnderCrystal");
}
private static Object getPacketDataSerializer(ByteBuf buf) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {
return SERIALIZER_CONSTRUCTOR.newInstance(buf);
private static void register(int id, String name) {
ENTTIY_ID_TO_NAME.put(id, name);
ENTTIY_NAME_TO_ID.put(name, id);
}
}

6
src/main/java/us/myles/ViaVersion/metadata/MetadataRewriter.java
View File

@ -12,6 +12,7 @@ import org.bukkit.util.Vector;
import io.netty.buffer.ByteBuf;
import us.myles.ViaVersion.api.slot.ItemSlotRewriter;
import us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack;
import us.myles.ViaVersion.util.PacketUtil;
public class MetadataRewriter {
@ -93,8 +94,9 @@ public class MetadataRewriter {
output.writeBoolean(((Byte) value).byteValue() != 0);
break;
case Slot:
ItemSlotRewriter.fixIdsFrom1_8To1_9(value);
ItemSlotRewriter.writeItemStack(value, output);
ItemStack item = (ItemStack) value;
ItemSlotRewriter.fixIdsFrom1_8To1_9(item);
ItemSlotRewriter.writeItemStack(item, output);
break;
case Position:
Vector vector = (Vector) value;

36
src/main/java/us/myles/ViaVersion/transformers/IncomingTransformer.java
View File

@ -175,25 +175,11 @@ public class IncomingTransformer {
int hand = PacketUtil.readVarInt(input);
ItemStack inHand = ViaVersionPlugin.getHandItem(info);
Object item = null;
try {
Method m = ReflectionUtil.obc("inventory.CraftItemStack").getDeclaredMethod("asNMSCopy", ItemStack.class);
item = m.invoke(null, inHand);
us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack item = us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack.fromBukkit(inHand);
ItemSlotRewriter.fixIdsFrom1_9To1_8(item);
ItemSlotRewriter.writeItemStack(item, output);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
} catch (Exception e) {
e.printStackTrace();
}
@ -213,25 +199,11 @@ public class IncomingTransformer {
output.writeByte(255);
// write item in hand
ItemStack inHand = ViaVersionPlugin.getHandItem(info);
Object item = null;
try {
Method m = ReflectionUtil.obc("inventory.CraftItemStack").getDeclaredMethod("asNMSCopy", ItemStack.class);
item = m.invoke(null, inHand);
us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack item = us.myles.ViaVersion.api.slot.ItemSlotRewriter.ItemStack.fromBukkit(inHand);
ItemSlotRewriter.fixIdsFrom1_9To1_8(item);
ItemSlotRewriter.writeItemStack(item, output);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (InstantiationException e) {
e.printStackTrace();
} catch (NoSuchFieldException e) {
} catch (Exception e) {
e.printStackTrace();
}

27
src/main/java/us/myles/ViaVersion/util/PacketUtil.java
View File

@ -3,6 +3,8 @@ package us.myles.ViaVersion.util;
import com.google.common.base.Charsets;
import com.google.common.base.Preconditions;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufInputStream;
import io.netty.buffer.ByteBufOutputStream;
import io.netty.channel.ChannelHandlerContext;
import io.netty.handler.codec.ByteToMessageDecoder;
import io.netty.handler.codec.MessageToByteEncoder;
@ -11,6 +13,9 @@ import us.myles.ViaVersion.chunks.PacketChunk;
import us.myles.ViaVersion.chunks.PacketChunkData;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.nio.ByteBuffer;
@ -21,6 +26,9 @@ import java.util.BitSet;
import java.util.List;
import java.util.UUID;
import org.spacehq.opennbt.NBTIO;
import org.spacehq.opennbt.tag.builtin.CompoundTag;
public class PacketUtil {
private static Method DECODE_METHOD;
private static Method ENCODE_METHOD;
@ -42,6 +50,25 @@ public class PacketUtil {
}
}
public static CompoundTag readNBT(ByteBuf input) throws IOException {
int readerIndex = input.readerIndex();
byte b = input.readByte();
if (b == 0) {
return null;
} else {
input.readerIndex(readerIndex);
return (CompoundTag) NBTIO.readTag(new DataInputStream(new ByteBufInputStream(input)));
}
}
public static void writeNBT(ByteBuf output, CompoundTag tag) throws IOException {
if (tag == null) {
output.writeByte(0);
} else {
NBTIO.writeTag(new DataOutputStream(new ByteBufOutputStream(output)), tag);
}
}
public static List<Object> callDecode(ByteToMessageDecoder decoder, ChannelHandlerContext ctx, Object input) {
List<Object> output = new ArrayList<Object>();
try {