Minecraft Forums

Okay, I see a lot of threads in Modification Development on how to make a custom biome spawn. Most people reply with

 
WorldType.EXAMPLE.addNewBiome(...);

Something like that, this is not how you do it.
To add a custom biome to the Overworld, use this little line of code:

 
BiomeManager.arrayListOfBiomes.add(new BiomeEntry(yourBiome, 100));

arrayListOfBiomes will give you an error, as it does not exist, this is where most of you get confused. This is basic java, change it to the array list you need.

 
public static List desertBiomes = new ArrayList();
 public static List warmBiomes = new ArrayList();
 public static List coolBiomes = new ArrayList();
 public static List icyBiomes = new ArrayList();
 
 public static List oceanBiomes = new ArrayList();

This is code from BiomeManager, these are the biome array lists you can add your biome to.
After this, change yourBiome to well... your biome.

 
public static void add()
 {
 BiomeDictionary.registerBiomeType(snowyMountains, Type.SNOWY, Type.MOUNTAIN);
 BiomeManager.icyBiomes.add(new BiomeEntry(snowyMountains, 100));
 BiomeDictionary.registerBiomeType(savannah, Type.SANDY, Type.FOREST);
BiomeManager.desertBiomes.add(new BiomeEntry(savannah, 100));
 }

This is my code for adding biomes, and I also registered my biomes in the BiomeDictionary.

This method no longer works could you possible update it and explain what code goes in which files?