From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 2 Dec 2016 00:11:43 -0500
Subject: [PATCH] Optimize Level.hasChunkAt(BlockPosition)Z

Reduce method invocations for World.isLoaded(BlockPosition)Z

diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
index 1ecde4f1dff5bfa67c526a699061f1952da59fae..926e4f9760e07ab66405132de2e96306211e5b9c 100644
--- a/src/main/java/net/minecraft/world/level/Level.java
+++ b/src/main/java/net/minecraft/world/level/Level.java
@@ -348,6 +348,11 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
         return chunk == null ? null : chunk.getFluidState(blockposition);
     }
 
+    @Override
+    public final boolean hasChunkAt(BlockPos pos) {
+        return getChunkIfLoaded(pos.getX() >> 4, pos.getZ() >> 4) != null; // Paper - Perf: Optimize Level.hasChunkAt(BlockPosition)Z
+    }
+
     public final boolean isLoadedAndInBounds(BlockPos blockposition) { // Paper - final for inline
         return getWorldBorder().isWithinBounds(blockposition) && getChunkIfLoadedImmediately(blockposition.getX() >> 4, blockposition.getZ() >> 4) != null;
     }