PaperMC/patches/server/0229-Add-Debug-Entities-option-to-debug-dupe-uuid-issues.patch
2024-01-24 13:42:24 +01:00

75 lines
4.6 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 21 Jul 2018 08:25:40 -0400
Subject: [PATCH] Add Debug Entities option to debug dupe uuid issues
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 57b344459b670742edc81a5046f1dfc2dae52c9f..fbac26f913476242c8dd1310426a1d66275f6567 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -1434,6 +1434,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
} else {
ChunkMap.TrackedEntity playerchunkmap_entitytracker = new ChunkMap.TrackedEntity(entity, i, j, entitytypes.trackDeltas());
+ entity.tracker = playerchunkmap_entitytracker; // Paper - Fast access to tracker
this.entityMap.put(entity.getId(), playerchunkmap_entitytracker);
playerchunkmap_entitytracker.updatePlayers(this.level.players());
if (entity instanceof ServerPlayer) {
@@ -1476,7 +1477,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
if (playerchunkmap_entitytracker1 != null) {
playerchunkmap_entitytracker1.broadcastRemoved();
}
-
+ entity.tracker = null; // Paper - We're no longer tracked
}
protected void tick() {
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 35ed4ba377eadb72d59a7984bc40f3834136174c..46b71a140ab8a1b997415184db09cb8a3ea39c52 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1197,6 +1197,12 @@ public class ServerLevel extends Level implements WorldGenLevel {
// CraftBukkit start
private boolean addEntity(Entity entity, CreatureSpawnEvent.SpawnReason spawnReason) {
org.spigotmc.AsyncCatcher.catchOp("entity add"); // Spigot
+ // Paper start - extra debug info
+ if (entity.valid) {
+ MinecraftServer.LOGGER.error("Attempted Double World add on {}", entity, new Throwable());
+ return true;
+ }
+ // Paper end - extra debug info
if (entity.isRemoved()) {
// WorldServer.LOGGER.warn("Tried to add entity {} but it was marked as removed already", EntityTypes.getKey(entity.getType())); // CraftBukkit
return false;
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 7abb4ba10029ad8df5ed520d1d3deb9d2819ca8d..227df91e28d11cad778b5190432c6eb5fb0312e5 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -241,6 +241,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource, S
public com.destroystokyo.paper.loottable.PaperLootableInventoryData lootableData; // Paper
private CraftEntity bukkitEntity;
+ public @org.jetbrains.annotations.Nullable net.minecraft.server.level.ChunkMap.TrackedEntity tracker; // Paper
public CraftEntity getBukkitEntity() {
if (this.bukkitEntity == null) {
this.bukkitEntity = CraftEntity.getEntity(this.level.getCraftServer(), this);
diff --git a/src/main/java/net/minecraft/world/level/entity/EntityLookup.java b/src/main/java/net/minecraft/world/level/entity/EntityLookup.java
index 21a2800db22f287b9c6a8290326fdf3b94ae94b1..2e561ac90a8c91ea13cfc18d09f8e0abbcff9385 100644
--- a/src/main/java/net/minecraft/world/level/entity/EntityLookup.java
+++ b/src/main/java/net/minecraft/world/level/entity/EntityLookup.java
@@ -34,6 +34,14 @@ public class EntityLookup<T extends EntityAccess> {
UUID uUID = entity.getUUID();
if (this.byUuid.containsKey(uUID)) {
LOGGER.warn("Duplicate entity UUID {}: {}", uUID, entity);
+ // Paper start - extra debug info
+ if (entity instanceof net.minecraft.world.entity.Entity) {
+ final T old = this.byUuid.get(entity.getUUID());
+ if (old instanceof net.minecraft.world.entity.Entity oldCast && oldCast.getId() != entity.getId() && oldCast.valid) {
+ LOGGER.error("Overwrote an existing entity {} with {}", oldCast, entity);
+ }
+ }
+ // Paper end - extra debug info
} else {
this.byUuid.put(uUID, entity);
this.byId.put(entity.getId(), entity);