PaperMC/Spigot-Server-Patches/0401-Fix-items-vanishing-through-end-portal.patch
Mariell Hoversholm 2db85c553f
fix: origin world can be unknown while knowing location
We will now store the world ID. It may not be used if the entity is
loaded before the world in question is, but it might be used later on,
should the entity come after the world.

Signed-off-by: Mariell Hoversholm <proximyst@proximyst.com>
2021-06-12 23:30:56 +01:00

28 lines
1.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: AJMFactsheets <AJMFactsheets@gmail.com>
Date: Wed, 22 Jan 2020 19:52:28 -0600
Subject: [PATCH] Fix items vanishing through end portal
If the Paper configuration option "keep-spawn-loaded" is set to false,
items entering the overworld from the end will spawn at Y = 0.
This is due to logic in the getHighestBlockYAt method in World.java
only searching the heightmap if the chunk is loaded.
Quickly loading the exact world spawn chunk before searching the
heightmap resolves the issue without having to load all spawn chunks.
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 73d4e813df19cf423071181b710f6af85ca96c98..522009c7ef56cd51e592c3bb985e33b4ee7d2532 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2740,6 +2740,9 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, ne
BlockPosition blockposition1;
if (flag1) {
+ // Paper start - Ensure spawn chunk is always loaded before calculating Y coordinate
+ this.world.getChunkAtWorldCoords(this.world.getSpawn());
+ // Paper end
blockposition1 = WorldServer.a;
} else {
blockposition1 = worldserver.getHighestBlockYAt(HeightMap.Type.MOTION_BLOCKING_NO_LEAVES, worldserver.getSpawn());