Turn on turbo mode by shift clicking the flag (or if your on mobile click see inside, and then edit, then turbo mode). Then just click somewhere and watch it happen (You have to wait till it finishes before tapping again, or else it’ll do this weird missile thing
Raycasting means a sprite will spit out a ray that goes on forever. If the ray hits an object, it stops. This is used in software like unity(and probably several other softwares) to create games. Scratch dosent actually use Ray-casting and i had to program it myself, but if this gets enough likes, I’ll probably do a tutorial or something.