Paper/Spigot-Server-Patches/0320-Process-Chunk.addEntities-before-chunkLoadEvent.patch
Aikar 87aa6e6626
Fix bug with entities not being added from loaded chunks
No entities were lost in this bug, just we were triggering the add entities
before they were loaded due to an inconsistent order of putting chunk into chunkmap.

Any entity that appeared to be gone on the last build will now be back.
2018-07-29 21:53:02 -04:00

72 Zeilen
3.3 KiB
Diff

From a4b33c025c22c73b86648dde212ee91c5942a9b6 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 29 Jul 2018 16:56:48 -0400
Subject: [PATCH] Process Chunk.addEntities before chunkLoadEvent
1.13 undesirably changed behavior here that chunk load event fired
before the entities were added to the world.
This means any plugin that spawns entities in chunk load event
causes the entities to be registered to the chunk, and then
added to the world twice.
Moves Entity Add to World to be done anytime a chunk is
registered to the Chunk Map, and ignore other calls.
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 4e32ae7db6..f0098e910a 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -897,7 +897,8 @@ public class Chunk implements IChunkAccess {
}
- public void addEntities() {
+ public void addEntities() { } // Paper - do nothing if anything calls this, we call it properly during ChunkMap.put
+ public void addEntitiesToWorld() { // Paper - rename to ensure noone else calls it
this.j = true;
this.world.b(this.tileEntities.values());
List[] aentityslice = this.entitySlices; // Spigot
diff --git a/src/main/java/net/minecraft/server/ChunkMap.java b/src/main/java/net/minecraft/server/ChunkMap.java
index 5757aa80f3..c6cedba96e 100644
--- a/src/main/java/net/minecraft/server/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/ChunkMap.java
@@ -31,6 +31,7 @@ public class ChunkMap extends Long2ObjectOpenHashMap<Chunk> {
}
}
}
+ chunk.addEntitiesToWorld(); // Paper - call before ChunkLoadEvent to maintain pre 1.13 order, otherwise CLE can manipulate the chunks entities
org.bukkit.Server server = chunk.world.getServer();
if (server != null) {
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index bd52bf6561..e27e952a1b 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -154,8 +154,8 @@ public class ChunkRegionLoader implements IChunkLoader, IAsyncChunkSaver {
if (data != null) {
Chunk chunk = (Chunk) data[0];
NBTTagCompound nbttagcompound = (NBTTagCompound) data[1];
- consumer.accept(chunk);
this.loadEntities(nbttagcompound.getCompound("Level"), chunk);
+ consumer.accept(chunk); // Paper - call AFTER entities are loaded
return chunk;
}
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index ece1871294..4fc3c2c354 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -2464,7 +2464,7 @@ public abstract class World implements GeneratorAccess, IIBlockAccess, AutoClose
while (iterator.hasNext()) {
Entity entity = (Entity) iterator.next();
- if (entity == null) {
+ if (entity == null || entity.valid) { // Paper - if already added, skip (shouldn't happen, but safety)
continue;
}
this.entityList.add(entity);
--
2.18.0