PaperMC/Spigot-Server-Patches/0430-Fix-items-vanishing-through-end-portal.patch
Aikar a2a9ffe3b9
Fix issues with Activation Range causing large chunk lookups.
Where I blocked movement did not consider velocity buildup, which I assume
then "unleashes" if something was really trying to push that entity, and moves
it a very large distance.

Additionally, this method was completely misnamed, as movementTick
is more "doLotsOfTickThings", and ended up breaking AI too, which the whole
point of temporary wake ups was to let AI run to trigger new immunity.

Also fixed numerous behavioral rules for Immunity to improve vanilla gameplay,
suchas bees that are angry or moving towards a flower or hive, any insentient
that is targetting any enemy (Accidently made it any player), and included flying
mobs such as phantoms by reducing the type check to insentient instead of Creature.

Also improved inWater immunity to consider if the mob is movable by water or not.
2020-04-02 01:25:36 -04:00

33 lines
1.7 KiB
Diff

From 0ac3b8721e23bde721c5cecbd6e253998a2ad5d1 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 3a248dbe37..d81ae00fb4 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2610,6 +2610,11 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
if (blockposition == null) { // CraftBukkit
if (dimensionmanager1.getType() == DimensionManager.THE_END && dimensionmanager == DimensionManager.OVERWORLD) { // CraftBukkit
+ // Paper start - Ensure spawn chunk is always loaded before calculating Y coordinate
+ if (!worldserver1.isLoaded(worldserver1.getSpawn())) {
+ worldserver1.getChunkAtWorldCoords(worldserver1.getSpawn());
+ }
+ // Paper end
// CraftBukkit start
EntityPortalEvent event = CraftEventFactory.callEntityPortalEvent(this, worldserver1, worldserver1.getHighestBlockYAt(HeightMap.Type.MOTION_BLOCKING_NO_LEAVES, worldserver1.getSpawn()), 0);
if (event == null) {
--
2.25.1