[1.19.2] Custom world type

[SomeUser]

Hello,

I want to write a custom world generator, but I don't want to override default generator - user should be able to generate world with vanilla generator without disabling/deleting the mod from mods directory.

I started researching where to start, but the information on the internet seems to be outdated. What is the best way to achieve it?

[warjort]

Do you mean like the "World Type" button in the "Create New World Screen"? e.g. flat, large biomes, etc.

It's not something I have looked at in recent versions.

But you should look at WorldPreset which has a vanilla registry key in the Registry class you can use for DeferredRegister.

 

I believe you can also add them with using the datapack mechanism if you only want to resuse vanilla logic.

The only thing I can find on the json format (beyond reading the codec) is this? https://misode.github.io/worldgen/world-preset/