Developers!: You will need to clean up your work/Minecraft/1.13.2 folder for this Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: b850a822 SPIGOT-4526: Add conversion time API for Zombie & subclasses CraftBukkit Changes: 38cf676e SPIGOT-4534: CreatureSpawnEvent not being called for CHUNK_GEN b446cb5d SPIGOT-4527: Fix sponges with waterlogged blocks 6ec8ea5c SPIGOT-4526: Add conversion time API for Zombie & subclasses c64fe508 Mappings Update a3c2ec03 Fix missing ServerListPingEvent call for legacy pings Spigot Changes: 1dc156ce Rebuild patches 140f654d Mappings Update
92 lines
4.6 KiB
Diff
92 lines
4.6 KiB
Diff
From f91d23d40efa6bb6385549a9dd7a69a2c42fceed Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Fri, 3 Aug 2018 22:47:46 -0400
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Subject: [PATCH] Entity add to world fixes
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1) Chunk Registration might kill an entity, don't add it to the world if it did!
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2) By default, entities are added to the world per slice iteration.
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This opens risk of the slices being manipulated during chunk add if an
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EntityAddToWorldEvent spawns an entity into this chunk.
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Fix this by differing entity add to world for all entities at the same time
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3) If a duplicate entity is attempted to add to the world of an entity, and
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the original entity is dead, overwrite it as the logic does for unloaod queued entities.
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index 4f01140e7..57e35564a 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -916,6 +916,7 @@ public class Chunk implements IChunkAccess {
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this.world.a(this.tileEntities.values());
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List[] aentityslice = this.entitySlices; // Spigot
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int i = aentityslice.length;
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+ List<Entity> toAdd = new java.util.ArrayList<>(32); // Paper
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for (int j = 0; j < i; ++j) {
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// CraftBukkit start
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@@ -964,18 +965,11 @@ public class Chunk implements IChunkAccess {
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}
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}
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// Paper end
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-
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- List<Entity> toRemove = new LinkedList<>();
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- this.world.a(entityslice.stream().filter((entity) -> {
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- if (!CraftEventFactory.doEntityAddEventCalling(this.world, entity, CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) {
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- toRemove.add(entity);
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- return false;
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- }
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- return !(entity instanceof EntityHuman);
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- }));
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- entityslice.removeAll(toRemove);
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// CraftBukkit end
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}
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+ this.world.addChunkEntities(toAdd.stream() // Paper - add all at same time to avoid entities adding to world modifying slice state, skip already added entities (not normal, but can happen)
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+ .filter((entity) -> CraftEventFactory.doEntityAddEventCalling(this.world, entity, CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) // Paper - Inline into stream
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+ .filter((entity) -> !(entity instanceof EntityHuman || entity.valid))); // Paper - add all at same time to avoid entities adding to world modifying slice state, skip already added entities (not normal, but can happen)
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// CraftBukkit start
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org.bukkit.Server server = this.world.getServer();
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 5e61826f6..bd6f64e52 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -1037,6 +1037,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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}
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this.getChunkAt(i, j).a(entity);
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+ if (entity.dead) return false; // Paper - don't add dead entities, chunk registration may of killed it
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this.entityList.add(entity);
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this.b(entity);
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return true;
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@@ -2442,9 +2443,13 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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return j;
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}
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+ public void addChunkEntities(Stream<Entity> collection) { a(collection); } // Paper - OBFHELPER
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public void a(Stream<Entity> stream) {
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org.spigotmc.AsyncCatcher.catchOp( "entity world add"); // Spigot
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stream.forEach((entity) -> {
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+ if (entity == null || entity.dead || entity.valid) { // Paper - prevent adding already added or dead entities
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+ return;
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+ }
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this.entityList.add(entity);
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this.b(entity);
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});
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diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
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index af9cdd9dc..10630ac96 100644
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--- a/src/main/java/net/minecraft/server/WorldServer.java
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+++ b/src/main/java/net/minecraft/server/WorldServer.java
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@@ -991,7 +991,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
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if (this.entitiesByUUID.containsKey(uuid)) {
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Entity entity1 = (Entity) this.entitiesByUUID.get(uuid);
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- if (this.g.contains(entity1)) {
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+ if (this.g.contains(entity1) || entity1.dead) { // Paper - if dupe is dead, overwrite
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this.g.remove(entity1);
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} else {
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if (!(entity instanceof EntityHuman)) {
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--
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2.20.0
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