Added controller trainer and improved truck class

Added

new truck methods for randomizing state within contraints
new truck methods for seeing if truck is at dock or offscreen
Training script for optimizing controller

Note

I currently have not successfully trained the controller to convergence. I have based the training off of this. On the website, they mention that the controller is hard to train. I have tried training it on the website with no success, so it seems like even their lessons are difficult to train. However, the code for training should be very similar to the code on the website. You may also alter the amount of lessons, max time steps, learning rate etc. to see if the model converges. I have been trying for over a week and have not succeeded yet.

Atcold / NYU-DLSP20

Added controller trainer and improved truck class #834

Added

Note