just wondering if this is possible, as I want to make a quick tool which will make each chunk of a world completely random and separate from the rest of the world. to do this I need to know if there is a way to change the seed of a world to something random while storing the original seed, regenerate a chunk, then repeat for all the chunks that have been generated in that world so far, then set the seed back to default afterwards. possible? edit: goshdangit. just realised there isn't even a method to get an array/list of all the generated chunks in the world -_- so I guess I'm gonna have to change my command to require a radius in chunks from 0,0... edit 2: some hope... found this under ChunkGenerator... Code: generate(World world, Random random, int x, int z) how do check if a chunk exists? is it just if(chunk != null) ? EDIT by Moderator: merged posts, please use the edit button instead of double posting.