My dad had a Birthday so I decided to code something. I spent a long time on it. You can move things around using the arrow keys on a pc only.
I used How_To_Make_A_Username's tutorial for part of it. I then edited a lot of things so it could be made into an engine which I might share in a bit. With it you can choose how wide, long, high it is along as where each rectangular prism is located.