forked from mirror/Folia
27 lines
1.8 KiB
Diff
27 lines
1.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Sat, 13 May 2023 17:13:40 -0700
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Subject: [PATCH] Do not access POI data for lodestone compass
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Instead, we can just check the loaded chunk's block position for
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the lodestone block, as that is at least safe enough for the light
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engine compared to the POI access. This should make it safe for
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off-region access.
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diff --git a/src/main/java/net/minecraft/world/item/component/LodestoneTracker.java b/src/main/java/net/minecraft/world/item/component/LodestoneTracker.java
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index cdd1f6939ce33e62f6609f7eb3a5dff59bf12675..5d92251dc5a53eb6b2f5ecfef1261ad6edd0e2a9 100644
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--- a/src/main/java/net/minecraft/world/item/component/LodestoneTracker.java
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+++ b/src/main/java/net/minecraft/world/item/component/LodestoneTracker.java
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@@ -29,7 +29,10 @@ public record LodestoneTracker(Optional<GlobalPos> target, boolean tracked) {
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return this;
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} else {
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BlockPos blockPos = this.target.get().pos();
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- return world.isInWorldBounds(blockPos) && (!world.hasChunkAt(blockPos) || world.getPoiManager().existsAtPosition(PoiTypes.LODESTONE, blockPos)) // Paper - Prevent compass from loading chunks
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+ // Folia start - do not access the POI data off-region
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+ net.minecraft.world.level.chunk.LevelChunk chunk = world.getChunkIfLoaded(blockPos);
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+ return world.isInWorldBounds(blockPos) && (chunk == null || chunk.getBlockState(blockPos).getBlock() == net.minecraft.world.level.block.Blocks.LODESTONE) // Paper - Prevent compass from loading chunks
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+ // Folia end - do not access the POI data off-region
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? this
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: new LodestoneTracker(Optional.empty(), true);
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}
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