Paper/patches/server/0116-Prevent-Pathfinding-out-of-World-Border.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 19 Dec 2016 23:07:42 -0500
Subject: [PATCH] Prevent Pathfinding out of World Border
This prevents Entities from trying to run outside of the World Border
TODO: This doesn't prevent the pathfinder from using blocks outside the world border as nodes. We can fix this
by adding code to all overrides in:
NodeEvaluator:
public abstract BlockPathTypes getBlockPathType(BlockGetter world, int x, int y, int z);
to return BLOCKED if it is outside the world border.
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diff --git a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
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index 989a0c44d6685b5824a055d077fb0f28c1ba4b17..98953769a4418385971651e43e2ff6f4ea1ec638 100644
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--- a/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
+++ b/src/main/java/net/minecraft/world/entity/ai/navigation/PathNavigation.java
@@ -156,7 +156,7 @@ public abstract class PathNavigation {
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// Paper start - Pathfind event
boolean copiedSet = false;
for (BlockPos possibleTarget : positions) {
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- if (!new com.destroystokyo.paper.event.entity.EntityPathfindEvent(this.mob.getBukkitEntity(),
+ if (!this.mob.getCommandSenderWorld().getWorldBorder().isWithinBounds(possibleTarget) || !new com.destroystokyo.paper.event.entity.EntityPathfindEvent(this.mob.getBukkitEntity(), // Paper - don't path out of world border
MCUtil.toLocation(this.mob.level, possibleTarget), target == null ? null : target.getBukkitEntity()).callEvent()) {
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if (!copiedSet) {
copiedSet = true;