Paper/Spigot-Server-Patches/0419-Don-t-load-Chunks-from-Hoppers-and-other-things.patch
Aikar e4d10a6d67
Updated Upstream (Bukkit/CraftBukkit)
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:
122289ff Add FaceAttachable interface to handle Grindstone facing in common with Switches
a6db750e SPIGOT-5647: ZombieVillager entity should have getVillagerType()

CraftBukkit Changes:
bbe3d58e SPIGOT-5650: Lectern.setPage(int) causes a NullPointerException
3075579f Add FaceAttachable interface to handle Grindstone facing in common with Switches
95bd4238 SPIGOT-5647: ZombieVillager entity should have getVillagerType()
4d975ac3 SPIGOT-5617: setBlockData does not work when NotPlayEvent is called by redstone current
2020-04-02 17:09:17 -04:00

37 lines
1.8 KiB
Diff

From c28c84eb3d7ad3354b88a6a37d82175886ea1dab Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 3 Nov 2016 20:28:12 -0400
Subject: [PATCH] Don't load Chunks from Hoppers and other things
Hoppers call this to I guess "get the primary side" of a double sided chest.
If the double sided chest crosses chunk lines, it causes the chunk to load.
This will end up causing sync chunk loads, which will unload with Chunk GC,
only to be reloaded again the next tick.
This of course is undesirable, so just return the loaded side as "primary"
and treat it as a single chest if the other sides are unloaded
diff --git a/src/main/java/net/minecraft/server/DoubleBlockFinder.java b/src/main/java/net/minecraft/server/DoubleBlockFinder.java
index 3cb6e60895..7a16a3e0e2 100644
--- a/src/main/java/net/minecraft/server/DoubleBlockFinder.java
+++ b/src/main/java/net/minecraft/server/DoubleBlockFinder.java
@@ -21,8 +21,12 @@ public class DoubleBlockFinder {
return new DoubleBlockFinder.Result.Single<>(s0);
} else {
BlockPosition blockposition1 = blockposition.shift((EnumDirection) function1.apply(iblockdata));
- IBlockData iblockdata1 = generatoraccess.getType(blockposition1);
-
+ // Paper start - don't load chunks if the other side of the chest is in unloaded chunk
+ IBlockData iblockdata1 = generatoraccess.getTypeIfLoaded(blockposition1);
+ if (iblockdata1 == null) {
+ return new DoubleBlockFinder.Result.Single<>(s0);
+ }
+ // Paper end
if (iblockdata1.getBlock() == iblockdata.getBlock()) {
DoubleBlockFinder.BlockType doubleblockfinder_blocktype1 = (DoubleBlockFinder.BlockType) function.apply(iblockdata1);
--
2.25.1