I would like to create a dimension similar to The End but have smaller asteroids that generate. I've looked into custom dimensions and can create normal surface dimensions but when I go to try to mimic The End I run into the problem of not knowing how to generate the islands. There's no property that I can change to do this or if there is I've over looked it. Where should I be looking for a good start for a sky dimension?

I suppose you can just use the chunkGenerator from the end. I don't know how to make more than 1 island, I'm stuck there...

 

ChunkGenerator end:

package net.minecraft.world.gen --> ChunkProviderEnd;

So i was able to adjust the Minecraft code for The End to generate the one island but, I got stuck at making multiple smaller islands. In the end I want it to be like an asteroid field that the player is able to work in. I'm starting to think that I don't understand how the Chunk Provider works. Is there a tutorial out there that I can uses to understand how that class works?