PaperMC/Spigot-Server-Patches/0408-Fix-items-vanishing-through-end-portal.patch
Aikar 20fc1b5c2a
[Auto] Updated Upstream (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

CraftBukkit Changes:
049120068 SPIGOT-6101: Store persist state of entities
0de8365dd SPIGOT-6103: Summoning an Eye of Ender throw an Error

Spigot Changes:
b5a13e6d Rebuild patches
2020-08-26 04:46:59 -04:00

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/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 884049750af9887cd15d4af9bbcb57265dcd319d..260e87eaec644c5b18c22a6638ef7e5d7f7b786b 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2623,6 +2623,9 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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());