Better limestone mountains

src/java/mmm/world/World.java

@@ -1,56 +1,41 @@
 package mmm.world;
 
 
-import mmm.world.biome.BiomeLimestoneHills;
+import mmm.world.biome.WBLimestoneMountains;
 import mmm.world.biome.WBLimestonePlateau;
-import net.minecraft.world.biome.Biome;
-import net.minecraft.world.biome.BiomeHills;
-import net.minecraftforge.common.BiomeDictionary;
-import net.minecraftforge.common.BiomeManager;
-import net.minecraftforge.common.MinecraftForge;
 import net.minecraftforge.common.BiomeManager.BiomeType;
-import net.minecraftforge.fml.common.registry.GameRegistry;
+import net.minecraftforge.common.MinecraftForge;
 
 
 
 public class World
 {
-	public static final BiomeLimestoneHills BIOME_LIMESTONE_HILLS;
-	public static final BiomeLimestoneHills BIOME_LIMESTONE_HILLS_M;
-	public static final BiomeLimestoneHills BIOME_LIMESTONE_HILLS_EDGE;
 
 	static {
 		MinecraftForge.TERRAIN_GEN_BUS.register( new WDefaultGenWatcher( ) );
+		WBiomeHelper helper;
 
-		BIOME_LIMESTONE_HILLS = new BiomeLimestoneHills( BiomeHills.Type.NORMAL ,
+		helper = new WBiomeHelper( WBLimestoneMountains::new );
-				new Biome.BiomeProperties( "Limestone Hills" ).setBaseHeight( 1.0F ).setHeightVariation( 0.5F )
+		helper.setNames( "Limestone Mountains" , "limestone/mountains" ) //
-						.setTemperature( 0.2F ).setRainfall( 0.3F ) );
+				.setElevation( 1f , .5f ) //
-		World.BIOME_LIMESTONE_HILLS.setRegistryName( "mmm:biome/limestone_hills" );
+				.setWeather( .3f , .2f ) //
-		GameRegistry.register( World.BIOME_LIMESTONE_HILLS );
+				.setWaterColor( 0xe0ff7f ) //
-		BiomeManager.addBiome( BiomeType.COOL , new BiomeManager.BiomeEntry( BIOME_LIMESTONE_HILLS , 2 ) );
+				.setType( BiomeType.COOL , 5 ) //
-		BiomeManager.addBiome( BiomeType.WARM , new BiomeManager.BiomeEntry( BIOME_LIMESTONE_HILLS , 2 ) );
+				.setType( BiomeType.WARM , 2 ) //
-		BiomeDictionary.makeBestGuess( World.BIOME_LIMESTONE_HILLS );
+				.register( );
+		helper.startMutation( );
+		helper.setNames( "Limestone Mountains (T)" , "limestone/mountains/t" ) //
+				.setExtraProperty( "Trees" ) //
+				.register( );
+		helper.setNames( "Limestone Mountains (TC)" , "limestone/mountains/tc" ) //
+				.setExtraProperty( "Chaos" ) //
+				.register( );
+		helper.setNames( "Limestone Mountains (C)" , "limestone/mountains/c" ) //
+				.removeExtraProperty( "Trees" ) //
+				.register( );
 
-		BIOME_LIMESTONE_HILLS_M = new BiomeLimestoneHills( BiomeHills.Type.MUTATED ,
+		helper = new WBiomeHelper( WBLimestonePlateau::new );
-				new Biome.BiomeProperties( "Limestone Hills M" ).setBaseBiome( "mmm:biome/limestone_hills" )
+		helper.setNames( "Limestone Plateau" , "limestone/plateau" ) //
-						.setBaseHeight( 1.0F ).setHeightVariation( 0.5F ).setTemperature( 0.2F ).setRainfall( 0.3F ) );
-		World.BIOME_LIMESTONE_HILLS_M.setRegistryName( "mmm:biome/limestone_hills_m" );
-		GameRegistry.register( World.BIOME_LIMESTONE_HILLS_M );
-		BiomeManager.addBiome( BiomeType.COOL , new BiomeManager.BiomeEntry( BIOME_LIMESTONE_HILLS_M , 2 ) );
-		BiomeManager.addBiome( BiomeType.WARM , new BiomeManager.BiomeEntry( BIOME_LIMESTONE_HILLS_M , 2 ) );
-		BiomeDictionary.makeBestGuess( World.BIOME_LIMESTONE_HILLS_M );
-
-		BIOME_LIMESTONE_HILLS_EDGE = new BiomeLimestoneHills( BiomeHills.Type.EXTRA_TREES ,
-				( new Biome.BiomeProperties( "Limestone Hills Edge" ) ).setBaseHeight( 0.8F ).setHeightVariation( 0.3F )
-						.setTemperature( 0.2F ).setRainfall( 0.3F ) );
-		World.BIOME_LIMESTONE_HILLS_EDGE.setRegistryName( "mmm:biome/limestone_hills_edge" );
-		GameRegistry.register( World.BIOME_LIMESTONE_HILLS_EDGE );
-		BiomeManager.addBiome( BiomeType.COOL , new BiomeManager.BiomeEntry( BIOME_LIMESTONE_HILLS_EDGE , 5 ) );
-		BiomeManager.addBiome( BiomeType.WARM , new BiomeManager.BiomeEntry( BIOME_LIMESTONE_HILLS_EDGE , 5 ) );
-		BiomeDictionary.makeBestGuess( World.BIOME_LIMESTONE_HILLS_EDGE );
-
-		WBiomeHelper helper = new WBiomeHelper( WBLimestonePlateau::new );
-		helper.setNames( "Limestone Plateau" , "limestone_plateau" ) //
 				.setElevation( .5f , .02f ) //
 				.setWeather( .6f , .5f ) //
 				.setWaterColor( 0xe0ff7f ) //
@@ -58,23 +43,17 @@ public class World
 				.setType( BiomeType.WARM , 5 ) //
 				.register( );
 		helper.startMutation( );
-		helper.setNames( "Chaotic Limestone Plateau" , "limestone_plateau/chaos" )//
+		helper.setNames( "Chaotic Limestone Plateau" , "limestone/plateau/chaotic" )//
 				.setWeather( .8f , .5f ) //
 				.setElevation( .6f , .07f ) //
-				.setType( BiomeType.COOL , 1 ) //
-				.setType( BiomeType.WARM , 1 ) //
 				.setExtraProperty( "ChaosChance" , 4 ) //
 				.register( );
-		helper.setNames( "Chaotic Limestone Forest" , "limestone_plateau/chaos_forest" ) //
+		helper.setNames( "Chaotic Limestone Forest" , "limestone/forest/chaotic" ) //
 				.setExtraProperty( "Trees" )//
-				.setType( BiomeType.COOL , 5 ) //
-				.setType( BiomeType.WARM , 5 ) //
 				.register( );
-		helper.setNames( "Limestone Forest" , "limestone_plateau/forest" ) //
+		helper.setNames( "Limestone Forest" , "limestone/forest" ) //
 				.setElevation( .5f , .02f ) //
 				.setWeather( .7f , .5f ) //
-				.setType( BiomeType.COOL , 5 ) //
-				.setType( BiomeType.WARM , 5 ) //
 				.removeExtraProperty( "ChaosChance" )//
 				.register( );
 	}

src/java/mmm/world/biome/A_WBLimestone.java

@@ -0,0 +1,59 @@
+package mmm.world.biome;
+
+
+import java.util.Random;
+
+import mmm.world.I_WDefaultPopulateHandler;
+import mmm.world.gen.WGLimestoneLayer;
+import net.minecraft.init.Blocks;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraft.world.biome.Biome;
+import net.minecraft.world.gen.feature.WorldGenLakes;
+import net.minecraftforge.event.terraingen.PopulateChunkEvent;
+
+
+
+public abstract class A_WBLimestone
+		extends Biome
+		implements I_WDefaultPopulateHandler
+{
+
+	public A_WBLimestone( BiomeProperties properties )
+	{
+		super( properties );
+	}
+
+
+	@Override
+	public void decorate( final World worldIn , final Random rand , final BlockPos pos )
+	{
+		System.err.println( "GEN " + this.getBiomeName( ) + " AT " + pos );
+		super.decorate( worldIn , rand , pos );
+		new WGLimestoneLayer( ).generate( worldIn , rand , pos );
+	}
+
+
+	@Override
+	public boolean onDefaultPopulate( final PopulateChunkEvent.Populate event )
+	{
+		// No lava lakes inside the limestone
+		if ( event.getType( ) == PopulateChunkEvent.Populate.EventType.LAVA ) {
+			final Random rand = event.getRand( );
+			final World world = event.getWorld( );
+			final int x = rand.nextInt( 16 ) + 8;
+			final int y = rand.nextInt( rand.nextInt( 248 ) + 8 );
+			final int z = rand.nextInt( 16 ) + 8;
+
+			if ( y < world.getSeaLevel( ) - 20 ) {
+				new WorldGenLakes( Blocks.LAVA ).generate( world , rand ,
+						new BlockPos( event.getChunkX( ) * 16 + x , y , event.getChunkZ( ) * 16 + z ) );
+			}
+
+			return false;
+		}
+
+		return true;
+	}
+
+}

src/java/mmm/world/biome/BiomeLimestoneHills.java

@@ -1,47 +0,0 @@
-package mmm.world.biome;
-
-
-import java.util.Random;
-
-import mmm.materials.Materials;
-import net.minecraft.init.Blocks;
-import net.minecraft.world.World;
-import net.minecraft.world.biome.Biome;
-import net.minecraft.world.biome.BiomeHills;
-import net.minecraft.world.chunk.ChunkPrimer;
-
-
-
-public class BiomeLimestoneHills
-		extends BiomeHills
-{
-
-	private final Type type;
-
-
-	public BiomeLimestoneHills( final BiomeHills.Type type , final Biome.BiomeProperties properties )
-	{
-		super( type , properties );
-		this.type = type;
-	}
-
-
-	@Override
-	public void genTerrainBlocks( final World worldIn , final Random rand , final ChunkPrimer chunkPrimerIn ,
-			final int x , final int z , final double noiseVal )
-	{
-		if ( this.type == BiomeHills.Type.EXTRA_TREES ) {
-			this.topBlock = Blocks.GRASS.getDefaultState( );
-			this.fillerBlock = Materials.ROCK_LIMESTONE.getDefaultState( );
-		} else if ( ( noiseVal < -1.0D || noiseVal > 2.0D ) && this.type == BiomeHills.Type.MUTATED ) {
-			this.topBlock = Blocks.GRAVEL.getDefaultState( );
-			this.fillerBlock = Blocks.GRAVEL.getDefaultState( );
-		} else {
-			this.topBlock = Materials.ROCK_LIMESTONE.getDefaultState( );
-			this.fillerBlock = Materials.ROCK_LIMESTONE.getDefaultState( );
-		}
-
-		this.generateBiomeTerrain( worldIn , rand , chunkPrimerIn , x , z , noiseVal );
-	}
-
-}

src/java/mmm/world/biome/WBLimestoneMountains.java

@@ -0,0 +1,129 @@
+package mmm.world.biome;
+
+
+import java.util.Random;
+
+import mmm.world.WBiomeHelper;
+import net.minecraft.block.BlockDirt;
+import net.minecraft.block.material.Material;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.init.Blocks;
+import net.minecraft.world.World;
+import net.minecraft.world.chunk.ChunkPrimer;
+import net.minecraft.world.gen.feature.WorldGenAbstractTree;
+import net.minecraft.world.gen.feature.WorldGenTaiga2;
+
+
+
+public class WBLimestoneMountains
+		extends A_WBLimestone
+{
+	private static final WorldGenTaiga2 SPRUCE_GENERATOR = new WorldGenTaiga2( false );
+
+	private static final IBlockState BS_GRASS = Blocks.GRASS.getDefaultState( );
+	private static final IBlockState BS_DIRT = Blocks.DIRT.getDefaultState( );
+	private static final IBlockState BS_COARSE_DIRT = Blocks.DIRT.getDefaultState( )//
+			.withProperty( BlockDirt.VARIANT , BlockDirt.DirtType.COARSE_DIRT );
+	private static final IBlockState BS_GRAVEL = Blocks.GRAVEL.getDefaultState( );
+	private static final IBlockState BS_STONE = Blocks.STONE.getDefaultState( );
+
+	private final boolean chaoticAreas;
+
+
+	public WBLimestoneMountains( final WBiomeHelper helper )
+	{
+		super( helper.getProperties( ) );
+
+		if ( helper.hasExtraProperty( "Trees" ) ) {
+			this.theBiomeDecorator.treesPerChunk = 2;
+			this.theBiomeDecorator.flowersPerChunk = 2;
+			this.theBiomeDecorator.grassPerChunk = 2;
+		} else {
+			this.theBiomeDecorator.treesPerChunk = 0;
+			this.theBiomeDecorator.flowersPerChunk = 2;
+			this.theBiomeDecorator.grassPerChunk = 2;
+		}
+		this.theBiomeDecorator.field_189870_A = 0.1f;
+
+		this.chaoticAreas = helper.hasExtraProperty( "Chaos" );
+	}
+
+
+	@Override
+	public WorldGenAbstractTree genBigTreeChance( final Random rand )
+	{
+		return rand.nextInt( 3 ) > 0 ? WBLimestoneMountains.SPRUCE_GENERATOR : super.genBigTreeChance( rand );
+	}
+
+
+	@Override
+	public void genTerrainBlocks( final World worldIn , final Random rand , final ChunkPrimer chunkPrimerIn ,
+			final int x , final int z , final double noiseVal )
+	{
+		if ( noiseVal > 1. && ( noiseVal <= 2. || !this.chaoticAreas ) ) {
+			this.topBlock = this.fillerBlock = WBLimestoneMountains.BS_STONE;
+		} else {
+			this.topBlock = WBLimestoneMountains.BS_GRASS;
+			this.fillerBlock = WBLimestoneMountains.BS_DIRT;
+		}
+		this.generateBiomeTerrain( worldIn , rand , chunkPrimerIn , x , z , noiseVal );
+
+		if ( noiseVal < -1. && this.chaoticAreas ) {
+			this.genChaoticArea( rand , chunkPrimerIn , x , z );
+		}
+	}
+
+
+	private void genChaoticArea( final Random rand , final ChunkPrimer chunkPrimerIn , final int x , final int z )
+	{
+		final int chunkX = x & 15 , chunkZ = z & 15;
+		final int groundY = this.findGround( chunkPrimerIn , chunkX , chunkZ );
+		if ( groundY == -1 ) {
+			return;
+		}
+
+		final int stoneY = this.findStone( chunkPrimerIn , chunkX , groundY , chunkZ );
+		if ( stoneY == -1 ) {
+			return;
+		}
+
+		final int topY = groundY + rand.nextInt( 3 );
+		for ( int y = stoneY ; y <= topY ; y++ ) {
+			final int v = rand.nextInt( 20 );
+			IBlockState randBlock;
+			if ( v < 1 ) {
+				randBlock = WBLimestoneMountains.BS_GRAVEL;
+			} else if ( v < 3 ) {
+				randBlock = WBLimestoneMountains.BS_COARSE_DIRT;
+			} else {
+				randBlock = WBLimestoneMountains.BS_STONE;
+			}
+			chunkPrimerIn.setBlockState( chunkX , y , chunkZ , randBlock );
+		}
+	}
+
+
+	private int findGround( final ChunkPrimer chunkPrimerIn , final int x , final int z )
+	{
+		for ( int y = 255 ; y >= 0 ; --y ) {
+			if ( chunkPrimerIn.getBlockState( x , y , z ).getMaterial( ) != Material.AIR ) {
+				return y;
+			}
+		}
+		return -1;
+	}
+
+
+	private int findStone( final ChunkPrimer chunkPrimerIn , final int x , final int fromY , final int z )
+	{
+		for ( int y = fromY ; y >= 0 ; --y ) {
+			if ( chunkPrimerIn.getBlockState( x , y , z ).getMaterial( ) == Material.AIR ) {
+				return -1;
+			}
+			if ( chunkPrimerIn.getBlockState( x , y , z ) == WBLimestoneMountains.BS_STONE ) {
+				return y;
+			}
+		}
+		return -1;
+	}
+}

src/java/mmm/world/biome/WBLimestonePlateau.java

@@ -3,33 +3,21 @@ package mmm.world.biome;
 
 import java.util.Random;
 
-import mmm.materials.Materials;
-import mmm.world.I_WDefaultPopulateHandler;
 import mmm.world.WBiomeHelper;
 import mmm.world.gen.WGLimestoneChaos;
-import net.minecraft.block.BlockDirt;
-import net.minecraft.block.material.Material;
-import net.minecraft.block.state.IBlockState;
 import net.minecraft.init.Blocks;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.world.World;
 import net.minecraft.world.biome.Biome;
 import net.minecraft.world.gen.feature.WorldGenAbstractTree;
-import net.minecraft.world.gen.feature.WorldGenLakes;
 import net.minecraft.world.gen.feature.WorldGenTaiga1;
 import net.minecraft.world.gen.feature.WorldGenTaiga2;
-import net.minecraftforge.event.terraingen.PopulateChunkEvent;
 
 
 
 public class WBLimestonePlateau
-		extends Biome
+		extends A_WBLimestone
-		implements I_WDefaultPopulateHandler
 {
-	private static final IBlockState BS_COARSE_DIRT = Blocks.DIRT.getDefaultState( ).withProperty( BlockDirt.VARIANT ,
-			BlockDirt.DirtType.COARSE_DIRT );
-	private static final IBlockState BS_LIMESTONE = Materials.ROCK_LIMESTONE.getDefaultState( );
-
 	private static final WorldGenTaiga1 PINE_GENERATOR = new WorldGenTaiga1( );
 	private static final WorldGenTaiga2 SPRUCE_GENERATOR = new WorldGenTaiga2( false );
 
@@ -77,97 +65,9 @@ public class WBLimestonePlateau
 	public void decorate( final World worldIn , final Random rand , final BlockPos pos )
 	{
 		if ( rand.nextInt( this.chaosChance ) == 0 ) {
-			final BlockPos.MutableBlockPos mbp = new BlockPos.MutableBlockPos(
+			new WGLimestoneChaos( ).generate( worldIn , rand , pos );
-					pos.add( rand.nextInt( 16 ) + 8 , 0 , rand.nextInt( 16 ) + 8 ) );
-			boolean found = false;
-			for ( int y = 255 ; y >= worldIn.getSeaLevel( ) - 20 ; y-- ) {
-				mbp.setY( y );
-				if ( worldIn.getBlockState( mbp ).getMaterial( ) != Material.AIR ) {
-					found = true;
-					mbp.setY( y + 2 - rand.nextInt( 4 ) );
-					break;
 		}
-			}
-
-			if ( found ) {
-				System.err.println( "PIT AT " + mbp );
-				new WGLimestoneChaos( ).generate( worldIn , rand , mbp );
-			}
-		}
-
 		super.decorate( worldIn , rand , pos );
-		this.makeLimestoneLayer( worldIn , rand , pos );
-	}
-
-
-	private void makeLimestoneLayer( final World worldIn , final Random rand , final BlockPos pos )
-	{
-		final BlockPos.MutableBlockPos mbp = new BlockPos.MutableBlockPos( pos );
-		for ( int i = 0 ; i < 16 ; i++ ) {
-			for ( int j = 0 ; j < 16 ; j++ ) {
-				mbp.setPos( pos.getX( ) + i , 255 , pos.getZ( ) + j );
-
-				int toDepth = -1;
-				for ( int y = 255 ; y >= 0 ; y-- ) {
-					mbp.setY( y );
-
-					final IBlockState bs = worldIn.getBlockState( mbp );
-					if ( bs.getBlock( ) == Blocks.STONE ) {
-						if ( toDepth == -1 ) {
-							toDepth = 15 + rand.nextInt( 4 );
-							this.replaceWithLimestone( worldIn , rand , mbp );
-						} else if ( toDepth != 0 ) {
-							toDepth--;
-							this.replaceWithLimestone( worldIn , rand , mbp );
-						}
-						continue;
-					}
-					if ( bs.getBlock( ) == Blocks.DIRT || bs.getBlock( ) == Blocks.GRASS
-							|| bs.getBlock( ) == Blocks.GRAVEL ) {
-						this.replaceWithCoarseDirt( worldIn , rand , mbp );
-					}
-				}
-			}
-		}
-	}
-
-
-	private void replaceWithLimestone( final World worldIn , final Random rand , final BlockPos.MutableBlockPos mbp )
-	{
-		if ( rand.nextInt( 8 ) != 0 ) {
-			worldIn.setBlockState( mbp , WBLimestonePlateau.BS_LIMESTONE );
-		}
-	}
-
-
-	private void replaceWithCoarseDirt( final World worldIn , final Random rand , final BlockPos.MutableBlockPos mbp )
-	{
-		if ( rand.nextInt( 16 ) == 0 ) {
-			worldIn.setBlockState( mbp , WBLimestonePlateau.BS_COARSE_DIRT );
-		}
-	}
-
-
-	@Override
-	public boolean onDefaultPopulate( final PopulateChunkEvent.Populate event )
-	{
-		// No lava lakes at the surface of limestone plateaus or inside the limestone
-		if ( event.getType( ) == PopulateChunkEvent.Populate.EventType.LAVA ) {
-			final Random rand = event.getRand( );
-			final World world = event.getWorld( );
-			final int x = rand.nextInt( 16 ) + 8;
-			final int y = rand.nextInt( rand.nextInt( 248 ) + 8 );
-			final int z = rand.nextInt( 16 ) + 8;
-
-			if ( y < world.getSeaLevel( ) - 20 ) {
-				new WorldGenLakes( Blocks.LAVA ).generate( world , rand ,
-						new BlockPos( event.getChunkX( ) * 16 + x , y , event.getChunkZ( ) * 16 + z ) );
-			}
-
-			return false;
-		}
-
-		return true;
 	}
 
 }

src/java/mmm/world/gen/WGLimestoneLayer.java

@@ -0,0 +1,89 @@
+package mmm.world.gen;
+
+
+import java.util.Random;
+
+import mmm.materials.Materials;
+import net.minecraft.block.BlockDirt;
+import net.minecraft.block.BlockStone;
+import net.minecraft.block.state.IBlockState;
+import net.minecraft.init.Blocks;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.World;
+import net.minecraft.world.gen.feature.WorldGenerator;
+
+
+
+public class WGLimestoneLayer
+		extends WorldGenerator
+{
+	private static final IBlockState BS_DIRT = Blocks.DIRT.getDefaultState( );
+	private static final IBlockState BS_COARSE_DIRT = Blocks.DIRT.getDefaultState( )//
+			.withProperty( BlockDirt.VARIANT , BlockDirt.DirtType.COARSE_DIRT );
+	private static final IBlockState BS_GRASS = Blocks.GRASS.getDefaultState( );
+
+	private static final IBlockState BS_STONE = Blocks.STONE.getDefaultState( );
+	private static final IBlockState BS_GRANITE = Blocks.STONE.getDefaultState( )//
+			.withProperty( BlockStone.VARIANT , BlockStone.EnumType.GRANITE );
+	private static final IBlockState BS_DIORITE = Blocks.STONE.getDefaultState( )//
+			.withProperty( BlockStone.VARIANT , BlockStone.EnumType.DIORITE );
+	private static final IBlockState BS_ANDESITE = Blocks.STONE.getDefaultState( )//
+			.withProperty( BlockStone.VARIANT , BlockStone.EnumType.ANDESITE );
+
+	private static final IBlockState BS_GRAVEL = Blocks.GRAVEL.getDefaultState( );
+
+	private static final IBlockState BS_LIMESTONE = Materials.ROCK_LIMESTONE.getDefaultState( );
+
+
+	@Override
+	public boolean generate( final World worldIn , final Random rand , final BlockPos pos )
+	{
+		final BlockPos.MutableBlockPos mbp = new BlockPos.MutableBlockPos( pos );
+		for ( int i = 0 ; i < 16 ; i++ ) {
+			for ( int j = 0 ; j < 16 ; j++ ) {
+				mbp.setPos( pos.getX( ) + i , 255 , pos.getZ( ) + j );
+
+				int toY = -1;
+				for ( int y = 255 ; y >= 0 ; y-- ) {
+					mbp.setY( y );
+
+					final IBlockState bs = worldIn.getBlockState( mbp );
+					if ( bs == WGLimestoneLayer.BS_STONE || bs == WGLimestoneLayer.BS_GRANITE
+							|| bs == WGLimestoneLayer.BS_DIORITE || bs == WGLimestoneLayer.BS_ANDESITE ) {
+						if ( y < toY ) {
+							continue;
+						}
+						this.replaceWithLimestone( worldIn , rand , mbp );
+						if ( toY == -1 ) {
+							toY = worldIn.getSeaLevel( ) - 15 - rand.nextInt( 5 );
+						}
+						continue;
+					}
+
+					if ( bs == WGLimestoneLayer.BS_DIRT || bs == WGLimestoneLayer.BS_GRAVEL
+							|| bs == WGLimestoneLayer.BS_GRASS ) {
+						this.replaceWithCoarseDirt( worldIn , rand , mbp );
+					}
+				}
+			}
+		}
+		return true;
+	}
+
+
+	private void replaceWithLimestone( final World worldIn , final Random rand , final BlockPos.MutableBlockPos mbp )
+	{
+		if ( rand.nextInt( 8 ) != 0 ) {
+			worldIn.setBlockState( mbp , WGLimestoneLayer.BS_LIMESTONE );
+		}
+	}
+
+
+	private void replaceWithCoarseDirt( final World worldIn , final Random rand , final BlockPos.MutableBlockPos mbp )
+	{
+		if ( rand.nextInt( 16 ) == 0 ) {
+			worldIn.setBlockState( mbp , WGLimestoneLayer.BS_COARSE_DIRT );
+		}
+	}
+
+}