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e4602b6d48
This patch appears to be no longer relevant, and is seemingly a leading cause of datapack performance being horrific
37 lines
1.8 KiB
Diff
37 lines
1.8 KiB
Diff
From 7776a06028d95b1840c7008f1545de7bbcd62b0f Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Thu, 3 Nov 2016 20:28:12 -0400
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Subject: [PATCH] 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.
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If the double sided chest crosses chunk lines, it causes the chunk to load.
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This will end up causing sync chunk loads, which will unload with Chunk GC,
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only to be reloaded again the next tick.
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This of course is undesirable, so just return the loaded side as "primary"
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and treat it as a single chest if the other sides are unloaded
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diff --git a/src/main/java/net/minecraft/server/DoubleBlockFinder.java b/src/main/java/net/minecraft/server/DoubleBlockFinder.java
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index 3cb6e6089..7a16a3e0e 100644
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--- a/src/main/java/net/minecraft/server/DoubleBlockFinder.java
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+++ b/src/main/java/net/minecraft/server/DoubleBlockFinder.java
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@@ -21,8 +21,12 @@ public class DoubleBlockFinder {
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return new DoubleBlockFinder.Result.Single<>(s0);
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} else {
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BlockPosition blockposition1 = blockposition.shift((EnumDirection) function1.apply(iblockdata));
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- IBlockData iblockdata1 = generatoraccess.getType(blockposition1);
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-
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+ // Paper start - don't load chunks if the other side of the chest is in unloaded chunk
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+ IBlockData iblockdata1 = generatoraccess.getTypeIfLoaded(blockposition1);
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+ if (iblockdata1 == null) {
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+ return new DoubleBlockFinder.Result.Single<>(s0);
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+ }
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+ // Paper end
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if (iblockdata1.getBlock() == iblockdata.getBlock()) {
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DoubleBlockFinder.BlockType doubleblockfinder_blocktype1 = (DoubleBlockFinder.BlockType) function.apply(iblockdata1);
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--
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2.25.1
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