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https://github.com/PaperMC/Paper.git
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ea855e2b46
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 Developers!: You will need to clean up your work/Minecraft/1.13.2 folder for this Also, restore a patch that was dropped in the last upstream Bukkit Changes: 279eeab3 Fix command description not being set 96e2bb18 Remove debug print from SyntheticEventTest CraftBukkit Changes:d3ed1516Fix dangerously threaded beacons217a293dDon't relocate joptsimple to allow --help to work.1be05a21Prepare for imminent Java 12 releasea49270b2Mappings Update5259d80cSPIGOT-4669: Fix PlayerTeleportEvent coordinates for relative teleports Spigot Changes: e6eb36f2 Rebuild patches
97 lines
4.7 KiB
Diff
97 lines
4.7 KiB
Diff
From 9a10ba335454cdf6a3ebb047e1ae00a84a00b368 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 7dd59ee03..a915d0184 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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@@ -2,6 +2,8 @@ package net.minecraft.server;
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// Paper start
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import com.destroystokyo.paper.PaperWorldConfig.DuplicateUUIDMode;
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+
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+import java.util.Arrays;
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import java.util.HashMap;
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import java.util.UUID;
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// Paper end
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@@ -954,15 +956,16 @@ public class Chunk implements IChunkAccess {
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// Paper end
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// CraftBukkit start
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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 (this.needsDecoration && !CraftEventFactory.doEntityAddEventCalling(this.world, entity, CreatureSpawnEvent.SpawnReason.CHUNK_GEN)) { // Only call for new chunks
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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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+ this.world.addChunkEntities(entityslice.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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+ // Paper start - Inline event into stream
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+ .filter((entity) -> {
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+ if (!this.needsDecoration) {
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+ return true;
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+ }
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+ return CraftEventFactory.doEntityAddEventCalling(this.world, entity, CreatureSpawnEvent.SpawnReason.CHUNK_GEN);
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+ })
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+ // Paper end - Inline event 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 end
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}
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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 748ab8212..bd8d9ef48 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 293818b19..4cda6cee2 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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@@ -967,7 +967,7 @@ 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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2.21.0
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