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While it wasn't really "broken" before, if plugins use NMS (which they really should't be) and mess with entity management themselves, and get it wrong, they could ultimately corrupt our state expectations. I've been unable to reproduce any issues locally, but these changes are the result of me analyzing the code pretty deeply and seeing about how to make it more durable to abnormal usage. Any servers seeing oddities, please run with -Ddebug.entities=true and send me any logs triggered.
26 lines
1.0 KiB
Diff
26 lines
1.0 KiB
Diff
From fbb663799bcceee4cfcafbac14a6b78fb196a209 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 21 Sep 2016 22:54:28 -0400
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Subject: [PATCH] Chunk registration fixes
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World checks and the Chunk Add logic are inconsistent on how Y > 256, < 0, is treated
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Keep them consistent
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diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
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index 336e6aeef6..282d6ae84c 100644
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--- a/src/main/java/net/minecraft/server/World.java
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+++ b/src/main/java/net/minecraft/server/World.java
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@@ -1473,7 +1473,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
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}
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i = MathHelper.floor(entity.locX / 16.0D);
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- j = MathHelper.floor(entity.locY / 16.0D);
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+ j = Math.min(15, Math.max(0, MathHelper.floor(entity.locY / 16.0D))); // Paper - stay consistent with chunk add/remove behavior
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int k = MathHelper.floor(entity.locZ / 16.0D);
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if (!entity.inChunk || entity.chunkX != i || entity.chunkY != j || entity.chunkZ != k) {
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--
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2.21.0
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