Thanks for the response. I hope something changes in the future to allow me to do this.

(edit) make animated running gear that is, a source code leak would be bad

Hi, I'm pretty new here, and I'm just as new to modding Factorio.

My objective here is to create new sprite sheets for trains, more specifically steam locomotives. My issue is that I am not aware of a method of implementing animations for wheels and the mechanisms that turn them (The running gear ...