Hey all, new here. I'm trying to make a mod that makes the entire minecraft world be underground (I'm planning on adding whole underground ecosystems)

 

Yes, I know it's been tried before. No, I don't care. 

 

So since I'm new to the whole minecraft modding thing, does anyone know how to radically alter how the world generates? I want rock almost all the way up to max world height, and I want to know where and how cave generation works. I did some cursory poking around on the web and I couldn't find any good tutorials on this.

(If you know of one, by all means post a link to it in lieu of an answer.)

 

Thanks!

You could create a new world type, use the hell world chunk provider(since it only has one biome), and set the biome's min/max height to the highest possible. The nether should show a bit more depth on how to do it since that's basically what you're making.

So would I make a class that inherits World and set the ChunkProvider to the hell one?

 

I'm still somewhat unfamiliar with the code base, so I'm not sure what exact classes you are referring to.