"Director's Commentary" of my source code

As you all know, participating in the compo also means to share your source code. Whenever I am curious about a certain game and take a look at their code, more often than not I have a hard time understanding what's going on and why, and if something is just a hack for lack of time or a clever implementation I just don't understand.

That's why I thought I make a litte (well) video about my explaining my source code of my LD41 game, "Zoccer", and walk you through line by line:

https://www.youtube.com/watch?v=WscCGxCOwzU

A link to a Windows build and the Game Maker project of the game can all be found on its Compo page.