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https://github.com/PaperMC/Paper.git
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80 lines
2.7 KiB
Diff
80 lines
2.7 KiB
Diff
From 5329a431fb981cbec731b82387798bd0e836821d 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 aa3547e..8b3d92c 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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@@ -30,7 +30,32 @@ import org.bukkit.event.weather.ThunderChangeEvent;
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public abstract class World implements IBlockAccess {
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public boolean d;
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- public List entityList = new ArrayList();
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+ // Spigot start - guard entity list from removals
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+ public List entityList = new ArrayList()
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+ {
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+ @Override
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+ public Object 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 List f = new ArrayList();
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public Set tileEntityList = new HashSet(); // CraftBukkit - ArrayList -> HashSet
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private List a = new ArrayList();
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@@ -78,6 +103,7 @@ public abstract class World implements IBlockAccess {
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int[] I;
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// Spigot start
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+ private boolean guardEntityList;
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protected final gnu.trove.map.hash.TLongShortHashMap chunkTickList;
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protected float growthOdds = 100;
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protected float modifiedOdds = 100;
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@@ -1257,6 +1283,7 @@ 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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@@ -1305,12 +1332,15 @@ public abstract class World implements IBlockAccess {
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this.getChunkAt(j, k).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.b(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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1.9.1
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