66 lines
2.6 KiB
Diff
66 lines
2.6 KiB
Diff
From 67ed4f8755937acbbb51582709bf1621185783c4 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Thu, 26 Jul 2018 00:11:12 -0400
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Subject: [PATCH] Prevent Saving Bad entities to chunks
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See https://github.com/PaperMC/Paper/issues/1223
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Minecraft is saving invalid entities to the chunk files.
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Avoid saving bad data, and also make improvements to handle
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loading these chunks. Any invalid entity will be instant killed,
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so lets avoid adding it to the world...
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This lets us be safer about the dupe UUID resolver too, as now
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we can ignore instant killed entities and avoid risk of duplicating
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an invalid entity.
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This should reduce log occurrences of dupe uuid messages.
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diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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index 4af5a230b..6371f2f5b 100644
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--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
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@@ -300,6 +300,7 @@ public class ChunkRegionLoader {
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nbttagcompound1.set("TileEntities", nbttaglist1);
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NBTTagList nbttaglist2 = new NBTTagList();
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+ java.util.List<Entity> toUpdate = new java.util.ArrayList<>(); // Paper
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if (ichunkaccess.getChunkStatus().getType() == ChunkStatus.Type.LEVELCHUNK) {
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Chunk chunk = (Chunk) ichunkaccess;
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@@ -311,13 +312,29 @@ public class ChunkRegionLoader {
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while (iterator1.hasNext()) {
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Entity entity = (Entity) iterator1.next();
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NBTTagCompound nbttagcompound4 = new NBTTagCompound();
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-
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+ // Paper start
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+ if ((int) Math.floor(entity.locX()) >> 4 != chunk.getPos().x || (int) Math.floor(entity.locZ()) >> 4 != chunk.getPos().z) {
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+ LogManager.getLogger().warn(entity + " is not in this chunk, skipping save. This a bug fix to a vanilla bug. Do not report this to PaperMC please.");
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+ toUpdate.add(entity);
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+ continue;
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+ }
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+ if (entity.dead) {
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+ continue;
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+ }
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+ // Paper end
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if (entity.d(nbttagcompound4)) {
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chunk.d(true);
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nbttaglist2.add(nbttagcompound4);
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}
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}
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}
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+
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+ // Paper start - move entities to the correct chunk
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+ for (Entity entity : toUpdate) {
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+ worldserver.entityJoinedWorld(entity);
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+ }
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+ // Paper end
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+
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} else {
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ProtoChunk protochunk = (ProtoChunk) ichunkaccess;
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--
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2.24.0
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