Performs chunk regeneration.

pom.xml

@@ -91,7 +91,7 @@
 		<dependency>
 			<groupId>world.bentobox</groupId>
 			<artifactId>bentobox</artifactId>
-			<version>1.4.0</version>
+			<version>1.5.0-SNAPSHOT</version>
 			<scope>provided</scope>
 		</dependency>
 	</dependencies>

src/main/java/world/bentobox/bskyblock/BSkyBlock.java

@@ -1,5 +1,6 @@
 package world.bentobox.bskyblock;
 
+import org.bukkit.Chunk;
 import org.bukkit.World;
 import org.bukkit.World.Environment;
 import org.bukkit.WorldCreator;
@@ -130,4 +131,10 @@ public class BSkyBlock extends GameModeAddon {
         }
 
     }
+
+	@Override
+	public void regerateChunk(Chunk chunk) {
+		if (chunkGenerator != null) chunkGenerator.regenerateChunk(chunk);
+		
+	}
 }

src/main/java/world/bentobox/bskyblock/generators/ChunkGeneratorWorld.java

@@ -4,6 +4,7 @@ import java.util.Collections;
 import java.util.List;
 import java.util.Random;
 
+import org.bukkit.Chunk;
 import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.World.Environment;
@@ -46,7 +47,7 @@ public class ChunkGeneratorWorld extends ChunkGenerator {
 		int seaHeight = addon.getSettings().getSeaHeight();
 		for (int x = 0; x < 16; x++) {
 			for (int z = 0; z < 16; z++) {
-                biomeGrid.setBiome(x, z, bio);
+				if (biomeGrid != null) biomeGrid.setBiome(x, z, bio);
 				if (seaHeight != 0) {
 					for (int y = 0; y <= seaHeight; y++) {
 						result.setBlock(x, y, z, Material.WATER);
@@ -157,4 +158,21 @@ public class ChunkGeneratorWorld extends ChunkGenerator {
 			result.setBlock(x + 1, y, z + 2, Material.GLOWSTONE);
 		}
 	}
+
+	/**
+	 * Regenerate a chunk
+	 * @param chunk - chunk to regenerate
+	 */
+	public void regenerateChunk(Chunk chunk) {
+		ChunkData cd = generateChunkData(chunk.getWorld(), new Random(), chunk.getX(), chunk.getZ(), null);
+		for (int x = 0; x < 16; x++) {
+			for (int z = 0; z < 16; z++) {
+				chunk.getBlock(x, 0, z).setBiome(addon.getSettings().getDefaultBiome());
+				for (int y = 0; y < chunk.getWorld().getMaxHeight(); y++) {
+					chunk.getBlock(x, y, z).setBlockData(cd.getBlockData(x, y, z));
+				}
+			}
+		}
+	}
+	
 }