papermc/patches/server/0356-Don-t-load-Chunks-from-Hoppers-and-other-things.patch
MiniDigger 4104545b11 remove system property for book size limits
"It was from a different time before books were as jank as they are now. As time has gone on they've only proven to be worse and worse."
2021-06-17 21:12:40 +02:00

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1.9 KiB
Diff

From 0000000000000000000000000000000000000000 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/world/level/block/DoubleBlockCombiner.java b/src/main/java/net/minecraft/world/level/block/DoubleBlockCombiner.java
index ff2a7b08fe70adaecdaa508baadcfe40416519e0..7082bb0b28b6a046e3925f69e18b7c319871128f 100644
--- a/src/main/java/net/minecraft/world/level/block/DoubleBlockCombiner.java
+++ b/src/main/java/net/minecraft/world/level/block/DoubleBlockCombiner.java
@@ -25,7 +25,12 @@ public class DoubleBlockCombiner {
return new DoubleBlockCombiner.NeighborCombineResult.Single<>(blockEntity);
} else {
BlockPos blockPos = pos.relative(function.apply(state));
- BlockState blockState = world.getBlockState(blockPos);
+ // Paper start
+ BlockState blockState = world.getTypeIfLoaded(blockPos);
+ if (blockState == null) {
+ return new DoubleBlockCombiner.NeighborCombineResult.Single<>(blockEntity);
+ }
+ // Paper end
if (blockState.is(state.getBlock())) {
DoubleBlockCombiner.BlockType blockType2 = typeMapper.apply(blockState);
if (blockType2 != DoubleBlockCombiner.BlockType.SINGLE && blockType != blockType2 && blockState.getValue(directionProperty) == state.getValue(directionProperty)) {