papermc/Spigot-Server-Patches/0264-Properly-remove-entities-on-dimension-teleport.patch
Shane Freeder ea855e2b46 Updated Upstream (Bukkit/CraftBukkit/Spigot)
Upstream has released updates that appears to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Developers!: You will need to clean up your work/Minecraft/1.13.2 folder
for this

Also, restore a patch that was dropped in the last upstream

Bukkit Changes:
279eeab3 Fix command description not being set
96e2bb18 Remove debug print from SyntheticEventTest

CraftBukkit Changes:
d3ed1516 Fix dangerously threaded beacons
217a293d Don't relocate joptsimple to allow --help to work.
1be05a21 Prepare for imminent Java 12 release
a49270b2 Mappings Update
5259d80c SPIGOT-4669: Fix PlayerTeleportEvent coordinates for relative teleports

Spigot Changes:
e6eb36f2 Rebuild patches
2019-03-20 01:55:16 +00:00

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2.4 KiB
Diff

From 41555aaf3ad7b457129248b588529ebdc76a2089 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 10 Jun 2018 20:04:42 -0400
Subject: [PATCH] Properly remove entities on dimension teleport
To teleport an entity between dimensions, the server makes a copy
and puts the copy in the new location, and marks the old one dead.
If this method got called for the same world in the same tick,
the entity would not have been removed from the UUID map, and the
world readd would fail.
This can be triggered even with a plugin if the entity is teleported
twice in the same tick, from world A to B, then back from B to A.
The re-add to A will fail to add the entity to the world. It will
actually be there, but it will not be visible on the client until
the server is restarted to re-try the add to world process again.
This bug was unlikely to be seen by many due to the double teleport
requirement, but plugins (such as my own) use this method to
trigger a "reload" of the entity on the client.
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index c59f137f0..f7a3e2ce7 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2608,7 +2608,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
}
// CraftBukkit end */
- this.world.kill(this);
+ this.world.removeEntity(this); // Paper - Fully remove entity, can't have dupes in the UUID map
this.dead = false;
this.world.methodProfiler.enter("reposition");
/* CraftBukkit start - Handled in calculateTarget
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index e4730352d..c08ee62e8 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -997,6 +997,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
}
protected void c(Entity entity) {
+ if (!this.entitiesByUUID.containsKey(entity.getUniqueID()) && !entity.valid) return; // Paper - Already removed, dont fire twice - this looks like it can happen even without our changes
super.c(entity);
this.entitiesById.d(entity.getId());
this.entitiesByUUID.remove(entity.getUniqueID());
--
2.21.0