From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Aikar Date: Sat, 28 Jul 2018 12:18:27 -0400 Subject: [PATCH] Ignore Dead Entities in entityList iteration A spigot change delays removal of entities from the entity list. This causes a change in behavior from Vanilla where getEntities type methods will return dead entities that they shouldn't otherwise be doing. This will ensure that dead entities are skipped from iteration since they shouldn't of been in the list in the first place. diff --git a/src/main/java/com/destroystokyo/paper/PaperCommand.java b/src/main/java/com/destroystokyo/paper/PaperCommand.java index 411aebed946991b899205fcc1fcf7f3bf83718c0..aa606e66c874d5147074b85cc9a5ceef71175740 100644 --- a/src/main/java/com/destroystokyo/paper/PaperCommand.java +++ b/src/main/java/com/destroystokyo/paper/PaperCommand.java @@ -209,6 +209,7 @@ public class PaperCommand extends Command { Collection entities = world.entitiesById.values(); entities.forEach(e -> { MinecraftKey key = e.getMinecraftKey(); + if (e.shouldBeRemoved) return; // Paper MutablePair> info = list.computeIfAbsent(key, k -> MutablePair.of(0, Maps.newHashMap())); ChunkCoordIntPair chunk = new ChunkCoordIntPair(e.chunkX, e.chunkZ); diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java index e829f62397d092fa919d387b157a65b0c627e2e2..3cb1ee261724e34a23c4a0f98673da1597786a01 100644 --- a/src/main/java/net/minecraft/server/Chunk.java +++ b/src/main/java/net/minecraft/server/Chunk.java @@ -825,6 +825,7 @@ public class Chunk implements IChunkAccess { for (int i1 = 0; i1 < l; ++i1) { Entity entity1 = (Entity) list1.get(i1); + if (entity1.shouldBeRemoved) continue; // Paper if (entity1.getBoundingBox().c(axisalignedbb) && entity1 != entity) { if (predicate == null || predicate.test(entity1)) { @@ -862,6 +863,7 @@ public class Chunk implements IChunkAccess { while (iterator.hasNext()) { T entity = (T) iterator.next(); // CraftBukkit - decompile error + if (entity.shouldBeRemoved) continue; // Paper if ((entitytypes == null || entity.getEntityType() == entitytypes) && entity.getBoundingBox().c(axisalignedbb) && predicate.test(entity)) { list.add(entity); @@ -884,6 +886,7 @@ public class Chunk implements IChunkAccess { while (iterator.hasNext()) { T t0 = (T) iterator.next(); // CraftBukkit - decompile error + if (t0.shouldBeRemoved) continue; // Paper if (oclass.isInstance(t0) && t0.getBoundingBox().c(axisalignedbb) && (predicate == null || predicate.test(t0))) { // Spigot - instance check list.add(t0); diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java index da195d9bb6995fcbe569ca2e2b08c473431376a6..49c7b40744adcd36e5ae1eef026679e9b646feac 100644 --- a/src/main/java/net/minecraft/server/Entity.java +++ b/src/main/java/net/minecraft/server/Entity.java @@ -190,6 +190,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke protected int numCollisions = 0; // Paper public void inactiveTick() { } // Spigot end + public boolean shouldBeRemoved; // Paper public float getBukkitYaw() { return this.yaw; diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java index f649b6cc5840a79c80217427abdadd889bf2738c..e26b1362899a9fad5e0e3a4e49acd98b67a4f03b 100644 --- a/src/main/java/net/minecraft/server/WorldServer.java +++ b/src/main/java/net/minecraft/server/WorldServer.java @@ -1198,6 +1198,7 @@ public class WorldServer extends World implements GeneratorAccessSeed { entity.origin = entity.getBukkitEntity().getLocation(); } // Paper end + entity.shouldBeRemoved = false; // Paper - shouldn't be removed after being re-added new com.destroystokyo.paper.event.entity.EntityAddToWorldEvent(entity.getBukkitEntity()).callEvent(); // Paper - fire while valid } @@ -1210,6 +1211,7 @@ public class WorldServer extends World implements GeneratorAccessSeed { this.removeEntityFromChunk(entity); this.entitiesById.remove(entity.getId()); this.unregisterEntity(entity); + entity.shouldBeRemoved = true; // Paper } } diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java index d8d8a8e10911424ba6ce8a80c58f172fbe0b44af..be028a80247dfb3bf7c726b1868c6e5c5bd99264 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java @@ -1046,6 +1046,7 @@ public class CraftWorld implements World { for (Object o : world.entitiesById.values()) { if (o instanceof net.minecraft.server.Entity) { net.minecraft.server.Entity mcEnt = (net.minecraft.server.Entity) o; + if (mcEnt.shouldBeRemoved) continue; // Paper Entity bukkitEntity = mcEnt.getBukkitEntity(); // Assuming that bukkitEntity isn't null @@ -1065,6 +1066,7 @@ public class CraftWorld implements World { for (Object o : world.entitiesById.values()) { if (o instanceof net.minecraft.server.Entity) { net.minecraft.server.Entity mcEnt = (net.minecraft.server.Entity) o; + if (mcEnt.shouldBeRemoved) continue; // Paper Entity bukkitEntity = mcEnt.getBukkitEntity(); // Assuming that bukkitEntity isn't null @@ -1091,6 +1093,7 @@ public class CraftWorld implements World { for (Object entity: world.entitiesById.values()) { if (entity instanceof net.minecraft.server.Entity) { + if (((net.minecraft.server.Entity) entity).shouldBeRemoved) continue; // Paper Entity bukkitEntity = ((net.minecraft.server.Entity) entity).getBukkitEntity(); if (bukkitEntity == null) { @@ -1114,6 +1117,7 @@ public class CraftWorld implements World { for (Object entity: world.entitiesById.values()) { if (entity instanceof net.minecraft.server.Entity) { + if (((net.minecraft.server.Entity) entity).shouldBeRemoved) continue; // Paper Entity bukkitEntity = ((net.minecraft.server.Entity) entity).getBukkitEntity(); if (bukkitEntity == null) {