Add method to get ungenerated chunk from long key (#9254)

Also added a missing deprecation for a location block key method

patches/api/Allow-Blocks-to-be-accessed-via-a-long-key.patch

@@ -83,6 +83,7 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @see Block#getBlockKey(int, int, int)
 +     */
 +    @NotNull
++    @Deprecated
 +    public default Location getLocationAtKey(long key) {
 +        int x = Block.getBlockKeyX(key);
 +        int y = Block.getBlockKeyY(key);

patches/api/Provide-Chunk-Coordinates-as-a-Long-API.patch

@@ -51,10 +51,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      @NotNull
      public Chunk getChunkAt(@NotNull Block block);
  
-+    // Paper start
++    // Paper start - chunk long key API
 +    /**
 +     * Gets the chunk at the specified chunk key, which is the X and Z packed into a long.
-+     *
++     * <p>
 +     * See {@link Chunk#getChunkKey()} for easy access to the key, or you may calculate it as:
 +     * long chunkKey = (long) chunkX &amp; 0xffffffffL | ((long) chunkZ &amp; 0xffffffffL) &gt;&gt; 32;
 +     *
@@ -62,10 +62,25 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @return The chunk at the specified key
 +     */
 +    @NotNull
-+    public default Chunk getChunkAt(long chunkKey) {
-+        return getChunkAt((int) chunkKey, (int) (chunkKey >> 32));
++    default Chunk getChunkAt(long chunkKey) {
++        return getChunkAt(chunkKey, true);
 +    }
-+    // Paper end
++
++    /**
++     * Gets the chunk at the specified chunk key, which is the X and Z packed into a long.
++     * <p>
++     * See {@link Chunk#getChunkKey()} for easy access to the key, or you may calculate it as:
++     * long chunkKey = (long) chunkX &amp; 0xffffffffL | ((long) chunkZ &amp; 0xffffffffL) &gt;&gt; 32;
++     *
++     * @param chunkKey The Chunk Key to look up the chunk by
++     * @param generate Whether the chunk should be fully generated or not
++     * @return The chunk at the specified key
++     */
++    @NotNull
++    default Chunk getChunkAt(long chunkKey, boolean generate) {
++        return getChunkAt((int) chunkKey, (int) (chunkKey >> 32), generate);
++    }
++    // Paper end - chunk long key API
 +
      /**
       * Checks if the specified {@link Chunk} is loaded

patches/api/isChunkGenerated-API.patch

@@ -38,10 +38,10 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 --- a/src/main/java/org/bukkit/World.java
 +++ b/src/main/java/org/bukkit/World.java
 @@ -0,0 +0,0 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
-     public default Chunk getChunkAt(long chunkKey) {
-         return getChunkAt((int) chunkKey, (int) (chunkKey >> 32));
      }
-+
+     // Paper end - chunk long key API
+ 
++    // Paper start - isChunkGenerated API
 +    /**
 +     * Checks if a {@link Chunk} has been generated at the specified chunk key,
 +     * which is the X and Z packed into a long.
@@ -49,9 +49,11 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
 +     * @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) {
++    default boolean isChunkGenerated(long chunkKey) {
 +        return isChunkGenerated((int) chunkKey, (int) (chunkKey >> 32));
 +    }
-     // Paper end
- 
++    // Paper end - isChunkGenerated API
++
      /**
+      * Checks if the specified {@link Chunk} is loaded
+      *