I don't want to hear a shot in the bb directly see a problem that is ok!

The background is like this:
Trouble for graduation design, the teacher let to do intensive study related, not contact, before I was a front-end Tony undergraduates, it is not difficult to me, crying, in making the change the code, but also a confused,

Question:
Ever bosses, help me to look at the following code USES the algorithm to train? (link below)

If you can help me with my learning path (now is what all don't, don't know what the reinforcement learning is a small white) don't really appreciate! Save the children, quick hand in the draft, the feeling I want to die!

Here is the code (a snake ai use the gym environment training)
https://github.com/seanbae/gym-snake