Paper/patches/server/0589-Use-getChunkIfLoadedImmediately-in-places.patch
Owen 89d51d5f29
Allow enabling sand duping (#10191)
Because this exploit has been widely known for years and has not been fixed by Mojang, we decided that it was worth allowing people to toggle it on/off due to how easy it is to make it configurable.

It should be noted that this decision does not promise all future exploits will be configurable.
2024-03-03 17:05:34 -05:00

54 lines
3.3 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 8 Jul 2019 00:13:36 -0700
Subject: [PATCH] Use getChunkIfLoadedImmediately in places
This prevents us from hitting chunk loads for chunks at or less-than
ticket level 33 (yes getChunkIfLoaded will actually perform a chunk
load in that case).
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 9e4453878246a22e320a6f8eb7aa08cb17438faf..60590ee30d2ff3b94c796bae2d7e9d9bc145fc0d 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -225,7 +225,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
public boolean hasEntityMoveEvent; // Paper - Add EntityMoveEvent
public LevelChunk getChunkIfLoaded(int x, int z) {
- return this.chunkSource.getChunk(x, z, false);
+ return this.chunkSource.getChunkAtIfLoadedImmediately(x, z); // Paper - Use getChunkIfLoadedImmediately
}
@Override
diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 1bb7cc9462cab7fbd09b944662711ae5bc5cf950..48e60e5ce01942fa5d30e043012e888989046cee 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -182,6 +182,13 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
return (CraftServer) Bukkit.getServer();
}
+ // Paper start - Use getChunkIfLoadedImmediately
+ @Override
+ public boolean hasChunk(int chunkX, int chunkZ) {
+ return this.getChunkIfLoaded(chunkX, chunkZ) != null;
+ }
+ // Paper end - Use getChunkIfLoadedImmediately
+
public abstract ResourceKey<LevelStem> getTypeKey();
protected Level(WritableLevelData worlddatamutable, ResourceKey<Level> resourcekey, RegistryAccess iregistrycustom, Holder<DimensionType> holder, Supplier<ProfilerFiller> supplier, boolean flag, boolean flag1, long i, int j, org.bukkit.generator.ChunkGenerator gen, org.bukkit.generator.BiomeProvider biomeProvider, org.bukkit.World.Environment env, java.util.function.Function<org.spigotmc.SpigotWorldConfig, io.papermc.paper.configuration.WorldConfiguration> paperWorldConfigCreator) { // Paper - create paper world config
diff --git a/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java b/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java
index 0d5ae91a9b43df7b412968ab5faf5498c09169f9..37ae0f928440af5b2fdfe68ad6c9c54e8c95c82c 100644
--- a/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java
+++ b/src/main/java/net/minecraft/world/level/gameevent/GameEventDispatcher.java
@@ -55,7 +55,7 @@ public class GameEventDispatcher {
for (int l1 = j; l1 <= i1; ++l1) {
for (int i2 = l; i2 <= k1; ++i2) {
- LevelChunk chunk = this.level.getChunkSource().getChunkNow(l1, i2);
+ LevelChunk chunk = (LevelChunk) this.level.getChunkIfLoadedImmediately(l1, i2); // Paper - Use getChunkIfLoadedImmediately
if (chunk != null) {
for (int j2 = k; j2 <= j1; ++j2) {