Movement Tutorial Thingy

This isn't really a tutorial, it's just a picture of a script.

Yes. I know that's a picture of a script. Where does that come from?

for it to be a tutorial, you need to explain how the script works instead of letting the viewer figure it out themselves (which they might not bother to do and just copy+paste the code (by hand because this is snap))

No, by hand because @theeric132 didn't post a project link! You can download and upload scripts. (shift-right click)

Never mind, it actually comes from this project: