WASD/< /\ \/ >= Move. 0= Open/close editor. 123= Switch layers. (Again to toggle onionskin.) P = Edit collision pins. E = Pick tile. Hold space = Build structures. U = Save scene. Space+N = Blank world.
All code to @griffpatch. Costumes from @griffpatch_tutor 's project https://scratch.mit.edu/projects/725577493/ EXCEPT the layer indicators, which are my own creations.
