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Don't load Chunks from Hoppers and other things

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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
This commit is contained in:
Aikar 2016-11-03 20:28:12 -04:00
parent 0e5a5711fc
commit a91c1c2d18
1 changed files with 16 additions and 0 deletions
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16
paper-server/patches/sources/net/minecraft/world/level/block/DoubleBlockCombiner.java.patch Normal file
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@ -0,0 +1,16 @@
--- a/net/minecraft/world/level/block/DoubleBlockCombiner.java
+++ b/net/minecraft/world/level/block/DoubleBlockCombiner.java
@@ -34,7 +34,12 @@
return new DoubleBlockCombiner.NeighborCombineResult.Single<>(blockEntity);
} else {
BlockPos blockPos = pos.relative(directionMapper.apply(state));
- BlockState blockState = world.getBlockState(blockPos);
+ // Paper start - Don't load Chunks from Hoppers and other things
+ BlockState blockState = world.getBlockStateIfLoaded(blockPos);
+ if (blockState == null) {
+ return new DoubleBlockCombiner.NeighborCombineResult.Single<>(blockEntity);
+ }
+ // Paper end - Don't load Chunks from Hoppers and other things
if (blockState.is(state.getBlock())) {
DoubleBlockCombiner.BlockType blockType2 = typeMapper.apply(blockState);
if (blockType2 != DoubleBlockCombiner.BlockType.SINGLE