From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrHua269 <wangxyper@163.com>
Date: Fri, 6 Dec 2024 23:53:03 +0800
Subject: [PATCH] Add fix for off region adult following ai behavior

Might fix: https://github.com/PaperMC/Folia/issues/245

diff --git a/src/main/java/net/minecraft/world/entity/ai/behavior/BabyFollowAdult.java b/src/main/java/net/minecraft/world/entity/ai/behavior/BabyFollowAdult.java
index 0ff878a8cfcd6a3e08575b7537d9b7e2b817908f..742662da3497b0042fa0fb6ff3456fc62692473d 100644
--- a/src/main/java/net/minecraft/world/entity/ai/behavior/BabyFollowAdult.java
+++ b/src/main/java/net/minecraft/world/entity/ai/behavior/BabyFollowAdult.java
@@ -33,6 +33,13 @@ public class BabyFollowAdult {
                     } else {
                         LivingEntity entityageable1 = (AgeableMob) behaviorbuilder_b.get(memoryaccessor); // CraftBukkit - type
 
+                        // Luminol start - Fix off world entity following which caused async issue
+                        if (!ca.spottedleaf.moonrise.common.util.TickThread.isTickThreadFor(entityageable1)) {
+                            memoryaccessor.erase();
+                            return true;
+                        }
+                        // Luminol end
+
                         if (entityageable.closerThan(entityageable1, (double) (executionRange.getMaxValue() + 1)) && !entityageable.closerThan(entityageable1, (double) executionRange.getMinValue())) {
                             // CraftBukkit start
                             EntityTargetLivingEntityEvent event = CraftEventFactory.callEntityTargetLivingEvent(entityageable, entityageable1, EntityTargetEvent.TargetReason.FOLLOW_LEADER);