PaperMC/Spigot-Server-Patches/0372-Fix-issues-with-entity-loss-due-to-unloaded-chunks.patch
Zach Brown 8ed2992da9
Make scan-for-legacy-ender-dragon config work again
Portion of diff was dropped in the mappings update commit.

Also remove the option to remove invalid statistics. The server will
automatically do this now as of... 1.13?, our option wasn't even doing anything.
2018-12-14 20:17:27 -05:00

44 lines
2 KiB
Diff

From 0b05b7acbe1e2495df24a75b06ac6d07b26bbfe1 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 28 Sep 2018 21:49:53 -0400
Subject: [PATCH] Fix issues with entity loss due to unloaded chunks
Vanilla has risk of losing entities by causing them to be
removed from all chunks if they try to move into an unloaded chunk.
This pretty much means high chance this entity will be lost in this scenario.
There is another case that adding an entity to the world can fail if
the chunk isn't loaded.
Lots of the server is designed around addEntity never expecting to fail for these reasons,
nor is it really logical.
This change ensures the chunks are always loaded when entities are
added to the world, or a valid entity moves between chunks.
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index 3c99ae7cd..2b9da597a 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -1145,7 +1145,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
int i = MathHelper.floor(entity.locX / 16.0D);
int j = MathHelper.floor(entity.locZ / 16.0D);
- boolean flag = entity.attachedToPlayer;
+ boolean flag = true; // Paper - always load chunks for entity adds
// Paper start - Set origin location when the entity is being added to the world
if (entity.origin == null) {
@@ -1649,7 +1649,7 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
this.getChunkAt(entity.ae, entity.ag).a(entity, entity.af);
}
- if (!entity.bN() && !this.isChunkLoaded(i, k, true)) {
+ if (!entity.valid && !entity.bN() && !this.isChunkLoaded(i, k, true)) { // Paper - always load chunks to register valid entities location
entity.inChunk = false;
} else {
this.getChunkAt(i, k).a(entity);
--
2.20.0