Paper/Spigot-API-Patches/0138-isChunkGenerated-API.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: cswhite2000 <18whitechristop@gmail.com>
Date: Tue, 21 Aug 2018 19:39:46 -0700
Subject: [PATCH] isChunkGenerated API


diff --git a/src/main/java/org/bukkit/Location.java b/src/main/java/org/bukkit/Location.java
index 07e532cde37255ffb2db368453bb69ee0a410931..6e1a1124a6e528c1a94ccb1d09bc5dccf056b0b8 100644
--- a/src/main/java/org/bukkit/Location.java
+++ b/src/main/java/org/bukkit/Location.java
@@ -3,6 +3,7 @@ package org.bukkit;
 import com.google.common.base.Preconditions;
 import java.lang.ref.Reference;
 import java.lang.ref.WeakReference;
+import com.google.common.base.Preconditions; // Paper
 import java.util.HashMap;
 import java.util.Map;
 import org.bukkit.block.Block;
@@ -545,6 +546,16 @@ public class Location implements Cloneable, ConfigurationSerializable {
     public boolean isChunkLoaded() { return this.getWorld().isChunkLoaded(locToBlock(x) >> 4, locToBlock(z) >> 4); } // Paper
 
     // Paper start
+    /**
+     * Checks if a {@link Chunk} has been generated at this location.
+     *
+     * @return true if a chunk has been generated at this location
+     */
+    public boolean isGenerated() {
+        World world = this.getWorld();
+        Preconditions.checkNotNull(world, "Location has no world!");
+        return world.isChunkGenerated(locToBlock(x) >> 4, locToBlock(z) >> 4);
+    }
 
     /**
      * Sets the position of this Location and returns itself
diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index 64308c1f05747c2320ae5dc86f602c3d93e9d855..b7ad4f566497914573ccfb595e660226dd34c273 100644
--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -254,6 +254,17 @@ public interface World extends PluginMessageRecipient, Metadatable {
         return getChunkAt((int) chunkKey, (int) (chunkKey >> 32));
     }
 
+    /**
+     * Checks if a {@link Chunk} has been generated at the specified chunk key,
+     * which is the X and Z packed into a long.
+     *
+     * @param chunkKey The Chunk Key to look up the chunk by
+     * @return true if the chunk has been generated, otherwise false
+     */
+    public default boolean isChunkGenerated(long chunkKey) {
+        return isChunkGenerated((int) chunkKey, (int) (chunkKey >> 32));
+    }
+
     /**
      * This is the Legacy API before Java 8 was supported. Java 8 Consumer is provided,
      * as well as future support