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f956f185c8
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: 47b9cf30 SPIGOT-4372: LightningStrikeEvent cause API a9ceda75 Include the plugin channel name in the exception message CraftBukkit Changes:a4bdecffSPIGOT-4372: LightningStrikeEvent cause API34caaf6dSPIGOT-4371: Trident damaged when event cancelled97315374SPIGOT-4369: Handle cancelled trident eventbf1c8273SPIGOT-4370: Remove vehicle if its passenger spawn event was cancelled Spigot Changes: 6b015b4b SPIGOT-4370: Remove vehicle if its passenger spawn event was cancelled
85 lines
4 KiB
Diff
85 lines
4 KiB
Diff
From d575c293eba242bce20368e93bf1c946bf9ee8cb 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 e8af8f4196..56c3783412 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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@@ -905,6 +905,7 @@ 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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List entityslice = aentityslice[j]; // Spigot
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@@ -952,12 +953,11 @@ public class Chunk implements IChunkAccess {
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thisChunk.put(entity.uniqueID, entity);
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}
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}
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- // Paper end
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- this.world.a(entityslice.stream().filter((entity) -> {
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- return !(entity instanceof EntityHuman);
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- }));
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+ toAdd.addAll(entityslice);
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+ // Paper end
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}
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+ this.world.addChunkEntities(toAdd.stream().filter((entity) -> !(entity instanceof EntityHuman))); // Paper - add all at same time to avoid entities adding to world modifying slice state
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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 e2ed2d3c1f..2b7ab82b11 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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@@ -1096,6 +1096,7 @@ 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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@@ -2493,9 +2494,13 @@ 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 2692d0a1b6..911d03c70b 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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@@ -987,7 +987,7 @@ 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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2.19.0
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