So last night I helped some kid from my faculty to get a grasp on some graphics programming. I made a video tutorial for him using Raylib and C.
Just some basic shit like drawing rectangles and triangles.
After I sent him the video I got a little entertained and continued by myself. Just a baby recreational project.
I set a circle to bounce around the screen, like the DVD screensaver. That took me a little more than expected. The I went to sleep.

Today I thought I'd add a second ball and have them bounce off each other. So I googled how to find when two circles intersect.
Holy fucking shit the math required only for this little thing is insane.
Game devs are fucking INSANE. I kneel.
Any recommended reading? I kinda want to get into graphics/engine programming but, you can see where I stand now.