papermc/Spigot-Server-Patches/0142-Don-t-load-Chunks-from-Hoppers-and-other-things.patch
Aikar b62dfa0bf9
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:
39ce5d3a SPIGOT-4399: ItemMeta.equals broken with AttributeModifiers

CraftBukkit Changes:
1cf8b5dc SPIGOT-4400: Populators running on existing chunks
116cb9a1 SPIGOT-4399: Add attribute modifier equality test
5ee1c18a SPIGOT-4398: Set ASM7_EXPERIMENTAL flag
2018-09-28 19:31:59 -04:00

35 lines
1.9 KiB
Diff

From 6e156b6791b9e843c2e7fe9a06b05f55cd793119 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/BlockChest.java b/src/main/java/net/minecraft/server/BlockChest.java
index 27e6d2b5f2..b3882930ea 100644
--- a/src/main/java/net/minecraft/server/BlockChest.java
+++ b/src/main/java/net/minecraft/server/BlockChest.java
@@ -181,7 +181,12 @@ public class BlockChest extends BlockTileEntity implements IFluidSource, IFluidC
return (ITileInventory)object;
} else {
BlockPosition blockposition1 = blockposition.shift(k(iblockdata));
- IBlockData iblockdata1 = world.getType(blockposition1);
+ // Paper start - don't load chunks if the other side of the chest is in unloaded chunk
+ final IBlockData iblockdata1 = world.getTypeIfLoaded(blockposition1); // Paper
+ if (iblockdata1 == null) {
+ return null;
+ }
+ // Paper end
if (iblockdata1.getBlock() == this) {
BlockPropertyChestType blockpropertychesttype1 = (BlockPropertyChestType)iblockdata1.get(b);
if (blockpropertychesttype1 != BlockPropertyChestType.SINGLE && blockpropertychesttype != blockpropertychesttype1 && iblockdata1.get(FACING) == iblockdata.get(FACING)) {
--
2.19.0