Is there anywhere I can read up on this, or a book or something? I wanted to make a 2D platformer, I made a crude framework of sorts, but there's no real physics system. I have no idea how to program projectiles, jumping, running physics, etc. Currently, i just have the player rise slowly until they hit the ceiling and then fall down when you hit the space key, and if you land on top of an enemy they die. And you can jump and collect coins, that's pretty much it. I did it from scratch in c++ with an old version of Microsoft Direct Draw and WinAPI, because Direct X is way too complicated and I don't want 3D, plus some ancient tutorials written circa 2001 that I grabbed from old 8chan /pdfs/ were direct draw based anyhow.