Paper/Spigot-Server-Patches/0261-Prevent-Saving-Bad-entities-to-chunks.patch
Zach Brown 01de058bf2
Little more progress
Keep getting interrupted so not as much as I'd like :(
2019-12-11 20:48:34 -06:00

66 lines
2.6 KiB
Diff

From 67ed4f8755937acbbb51582709bf1621185783c4 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Thu, 26 Jul 2018 00:11:12 -0400
Subject: [PATCH] Prevent Saving Bad entities to chunks
See https://github.com/PaperMC/Paper/issues/1223
Minecraft is saving invalid entities to the chunk files.
Avoid saving bad data, and also make improvements to handle
loading these chunks. Any invalid entity will be instant killed,
so lets avoid adding it to the world...
This lets us be safer about the dupe UUID resolver too, as now
we can ignore instant killed entities and avoid risk of duplicating
an invalid entity.
This should reduce log occurrences of dupe uuid messages.
diff --git a/src/main/java/net/minecraft/server/ChunkRegionLoader.java b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
index 4af5a230b..6371f2f5b 100644
--- a/src/main/java/net/minecraft/server/ChunkRegionLoader.java
+++ b/src/main/java/net/minecraft/server/ChunkRegionLoader.java
@@ -300,6 +300,7 @@ public class ChunkRegionLoader {
nbttagcompound1.set("TileEntities", nbttaglist1);
NBTTagList nbttaglist2 = new NBTTagList();
+ java.util.List<Entity> toUpdate = new java.util.ArrayList<>(); // Paper
if (ichunkaccess.getChunkStatus().getType() == ChunkStatus.Type.LEVELCHUNK) {
Chunk chunk = (Chunk) ichunkaccess;
@@ -311,13 +312,29 @@ public class ChunkRegionLoader {
while (iterator1.hasNext()) {
Entity entity = (Entity) iterator1.next();
NBTTagCompound nbttagcompound4 = new NBTTagCompound();
-
+ // Paper start
+ if ((int) Math.floor(entity.locX()) >> 4 != chunk.getPos().x || (int) Math.floor(entity.locZ()) >> 4 != chunk.getPos().z) {
+ 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.");
+ toUpdate.add(entity);
+ continue;
+ }
+ if (entity.dead) {
+ continue;
+ }
+ // Paper end
if (entity.d(nbttagcompound4)) {
chunk.d(true);
nbttaglist2.add(nbttagcompound4);
}
}
}
+
+ // Paper start - move entities to the correct chunk
+ for (Entity entity : toUpdate) {
+ worldserver.entityJoinedWorld(entity);
+ }
+ // Paper end
+
} else {
ProtoChunk protochunk = (ProtoChunk) ichunkaccess;
--
2.24.0