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https://github.com/PaperMC/Paper.git
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79 lines
2.8 KiB
Diff
79 lines
2.8 KiB
Diff
From 635e7f0a742e57728246287c937d3b65c754e9bc Mon Sep 17 00:00:00 2001
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From: md_5 <git@md-5.net>
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Date: Mon, 10 Mar 2014 09:03:28 +1100
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Subject: [PATCH] Guard Entity List
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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 2eaa1cb..da7a546 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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@@ -33,7 +33,32 @@ public abstract class World implements IBlockAccess {
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private int a = 63;
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protected boolean d;
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- public final List<Entity> entityList = Lists.newArrayList();
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+ // Spigot start - guard entity list from removals
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+ public final List<Entity> entityList = new java.util.ArrayList<Entity>()
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+ {
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+ @Override
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+ public Entity remove(int index)
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+ {
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+ guard();
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+ return super.remove( index );
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+ }
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+
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+ @Override
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+ public boolean remove(Object o)
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+ {
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+ guard();
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+ return super.remove( o );
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+ }
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+
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+ private void guard()
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+ {
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+ if ( guardEntityList )
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+ {
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+ throw new java.util.ConcurrentModificationException();
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+ }
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+ }
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+ };
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+ // Spigot end
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protected final List<Entity> f = Lists.newArrayList();
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public final List<TileEntity> tileEntityList = Lists.newArrayList();
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public final List<TileEntity> tileEntityListTick = Lists.newArrayList();
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@@ -101,6 +126,7 @@ public abstract class World implements IBlockAccess {
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public final org.spigotmc.SpigotWorldConfig spigotConfig; // Spigot
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public final SpigotTimings.WorldTimingsHandler timings; // Spigot
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+ private boolean guardEntityList; // Spigot
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public CraftWorld getWorld() {
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return this.world;
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@@ -1309,6 +1335,7 @@ public abstract class World implements IBlockAccess {
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org.spigotmc.ActivationRange.activateEntities(this); // Spigot
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timings.entityTick.startTiming(); // Spigot
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+ guardEntityList = true; // Spigot
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// CraftBukkit start - Use field for loop variable
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for (this.tickPosition = 0; this.tickPosition < this.entityList.size(); ++this.tickPosition) {
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entity = (Entity) this.entityList.get(this.tickPosition);
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@@ -1347,12 +1374,15 @@ public abstract class World implements IBlockAccess {
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this.getChunkAt(j, l).b(entity);
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}
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+ guardEntityList = false; // Spigot
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this.entityList.remove(this.tickPosition--); // CraftBukkit - Use field for loop variable
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+ guardEntityList = true; // Spigot
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this.c(entity);
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}
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this.methodProfiler.b();
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}
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+ guardEntityList = false; // Spigot
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timings.entityTick.stopTiming(); // Spigot
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this.methodProfiler.c("blockEntities");
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--
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2.5.0
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