Mirror von
https://github.com/PaperMC/Paper.git
synchronisiert 2024-12-15 19:10:09 +01:00
55 Zeilen
2.5 KiB
Diff
55 Zeilen
2.5 KiB
Diff
From 7e6256031e8db371c47b33f612150c7c0f9aee17 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Wed, 17 Oct 2018 22:31:54 -0400
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Subject: [PATCH] Ensure chunk neighbor counts do not get desynced
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Mojang was not checking that the chunk did not overwrite, or
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was successfully removed.
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We're seeing odd reports in #1561 that indicates issues around
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this are having problems.
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diff --git a/src/main/java/net/minecraft/server/ChunkMap.java b/src/main/java/net/minecraft/server/ChunkMap.java
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index 39ac032b0b..1fb0770015 100644
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--- a/src/main/java/net/minecraft/server/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/ChunkMap.java
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@@ -17,6 +17,7 @@ public class ChunkMap extends Long2ObjectOpenHashMap<Chunk> {
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chunk.world.timings.syncChunkLoadPostTimer.startTiming(); // Paper
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lastChunkByPos = chunk; // Paper
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Chunk chunk1 = (Chunk) super.put(i, chunk);
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+ if (chunk1 == null) { // Paper - we should never be overwriting chunks
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ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(i);
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for (int j = chunkcoordintpair.x - 1; j <= chunkcoordintpair.x + 1; ++j) {
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@@ -47,7 +48,11 @@ public class ChunkMap extends Long2ObjectOpenHashMap<Chunk> {
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chunk.setNeighborLoaded(x, z);
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}
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}
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+ // Paper start
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+ } } else {
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+ a.error("Overwrote existing chunk! (" + chunk.world.getWorld().getName() + ":" + chunk.locX+"," + chunk.locZ + ")", new IllegalStateException());
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}
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+ // Paper end
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// Paper start - if this is a spare chunk (not part of any players view distance), go ahead and queue it for unload.
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if (!((WorldServer)chunk.world).getPlayerChunkMap().isChunkInUse(chunk.locX, chunk.locZ)) {
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if (chunk.world.paperConfig.delayChunkUnloadsBy > 0) {
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@@ -69,6 +74,7 @@ public class ChunkMap extends Long2ObjectOpenHashMap<Chunk> {
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public Chunk a(long i) {
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Chunk chunk = (Chunk) super.remove(i);
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+ if (chunk != null) { // Paper - don't decrement if we didn't remove anything
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ChunkCoordIntPair chunkcoordintpair = new ChunkCoordIntPair(i);
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for (int j = chunkcoordintpair.x - 1; j <= chunkcoordintpair.x + 1; ++j) {
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@@ -84,6 +90,7 @@ public class ChunkMap extends Long2ObjectOpenHashMap<Chunk> {
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}
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// Paper start
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+ } // close if (chunk != null)
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if (lastChunkByPos != null && i == lastChunkByPos.chunkKey) {
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lastChunkByPos = null;
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}
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--
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2.19.1
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