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Don't allow for supporting block checks to load chunks

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I cannot test this due to lack of hardware (took 30 minutes getting paper
updated and loaded into IJ on this machine...), however, this is the easiest
patch for now. Ideally, some form of distance check would probably be added to
improve invalidation of this cache.
This commit is contained in:
Shane Freeder 2023-07-05 23:13:30 +01:00
parent 493852bbd1
commit 3b3cf7f532
3 changed files with 21 additions and 1 deletions
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19
patches/server/Don-t-load-chunks-for-supporting-block-checks.patch Normal file
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@ -0,0 +1,19 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Wed, 5 Jul 2023 23:11:53 +0100
Subject: [PATCH] Don't load chunks for supporting block checks
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -0,0 +0,0 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
}
protected BlockPos getOnPos(float offset) {
- if (this.mainSupportingBlockPos.isPresent()) {
+ if (this.mainSupportingBlockPos.isPresent() && this.level().getChunkIfLoadedImmediately(this.mainSupportingBlockPos.get()) != null) { // Paper - ensure no loads
BlockPos blockposition = (BlockPos) this.mainSupportingBlockPos.get();
if (offset <= 1.0E-5F) {

1
patches/server/MC-Utils.patch
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@ -6935,6 +6935,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
ChunkAccess getChunk(int chunkX, int chunkZ, ChunkStatus leastStatus, boolean create);
+ @Nullable ChunkAccess getChunkIfLoadedImmediately(int x, int z); // Paper - ifLoaded api (we need this since current impl blocks if the chunk is loading)
+ @Nullable default ChunkAccess getChunkIfLoadedImmediately(BlockPos pos) { return this.getChunkIfLoadedImmediately(pos.getX() >> 4, pos.getZ() >> 4);}
+
/** @deprecated */
@Deprecated

2
patches/server/Rewrite-chunk-system.patch
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@ -21216,8 +21216,8 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
+ // Paper end - rewrite chunk system
+
@Nullable ChunkAccess getChunkIfLoadedImmediately(int x, int z); // Paper - ifLoaded api (we need this since current impl blocks if the chunk is loading)
@Nullable default ChunkAccess getChunkIfLoadedImmediately(BlockPos pos) { return this.getChunkIfLoadedImmediately(pos.getX() >> 4, pos.getZ() >> 4);}
/** @deprecated */
diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java b/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/world/level/chunk/ChunkGenerator.java