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Workaround to fix adding entity to a world on Paper servers

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This commit is contained in:
filoghost 2018-08-22 12:14:24 +02:00
parent df5d3f9c26
commit f74d80ba43
2 changed files with 25 additions and 1 deletions
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13
NMS/v1_13_R1/src/main/java/com/gmail/filoghost/holographicdisplays/nms/v1_13_R1/NmsManagerImpl.java
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@ -1,6 +1,7 @@
package com.gmail.filoghost.holographicdisplays.nms.v1_13_R1;
import java.lang.reflect.Method;
import java.util.List;
import java.util.function.Function;
import org.bukkit.Bukkit;
@ -20,6 +21,7 @@ import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSEntityBa
import com.gmail.filoghost.holographicdisplays.nms.interfaces.entity.NMSItem;
import com.gmail.filoghost.holographicdisplays.util.DebugHandler;
import com.gmail.filoghost.holographicdisplays.util.Validator;
import com.gmail.filoghost.holographicdisplays.util.VersionUtils;
import com.gmail.filoghost.holographicdisplays.util.reflection.ReflectField;
import net.minecraft.server.v1_13_R1.Entity;
@ -34,6 +36,7 @@ public class NmsManagerImpl implements NMSManager {
private static final ReflectField<RegistryID<EntityTypes<?>>> REGISTRY_ID_FIELD = new ReflectField<RegistryID<EntityTypes<?>>>(RegistryMaterials.class, "a");
private static final ReflectField<Object[]> ID_TO_CLASS_MAP_FIELD = new ReflectField<Object[]>(RegistryID.class, "d");
private static final ReflectField<List<Entity>> ENTITY_LIST_FIELD = new ReflectField<List<Entity>>(World.class, "entityList");
private Method validateEntityMethod;
@ -114,7 +117,17 @@ public class NmsManagerImpl implements NMSManager {
}
nmsWorld.getChunkAt(chunkX, chunkZ).a(nmsEntity);
if (VersionUtils.isPaperServer()) {
try {
// Workaround because nmsWorld.entityList is a different class in Paper, if used without reflection it throws NoSuchFieldError.
ENTITY_LIST_FIELD.get(nmsWorld).add(nmsEntity);
} catch (Exception e) {
e.printStackTrace();
return false;
}
} else {
nmsWorld.entityList.add(nmsEntity);
}
try {
validateEntityMethod.invoke(nmsWorld, nmsEntity);

11
Utils/src/main/java/com/gmail/filoghost/holographicdisplays/util/VersionUtils.java
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@ -7,6 +7,17 @@ import org.bukkit.Bukkit;
public class VersionUtils {
private static final boolean IS_PAPER_SERVER = Bukkit.getName().equals("Paper");
/**
* Paper contains some changes that require
*/
public static boolean isPaperServer() {
return IS_PAPER_SERVER;
}
/**
* This method uses a regex to get the NMS package part that changes with every update.
* Example: v1_8_R1