Biomes in nether?

[Terrails]

I looked through some vanilla code and found out to WorldProviderHell uses BiomeProviderSingle, I tried to change it to BiomeProvider and unregister/register the custom WorldProvider in WorldEven.Load but I'm not sure how I would add the biomes to that world, the biome I made only works in overworld but I want it to be nether only.

[Terrails]

bump

[Choonster]

Have you tried looking at Biomes O' Plenty's code for Nether biomes?

[Terrails]

I tried looking at it but the code is too big as it uses custom GenLayers, WorldSettings, BiomeTypes and ChunkGenerators, I thought it would be just a matter of switching between the default and single biome provider, but I don't get it why there's need for custom GenLayers, BiomeTypes, ChunkGenerators and WorldSettings (I don't need custom world settings).