We need a way to visualise the training.

[edouardklein]

Training is silent, and its results have to be manually tested (e.g. putting bob somewhere and stepping).

A way to see the training in progress, and more importantly to see the results in an intuitive manner would be wonderful.

Implementation is left as an exercise for the reader.

Kidding aside, implementing the cliff, and visualizing the value function could be a starting point.

[edouardklein]

Additional criticism that could be voided by adding this feature :

This is very likely a bug: there is clearly a bunch of crystals right next to the robot, why is the game keep saying "no rewards"???

from http://contest.gamedevfort.com/submission/432#comment-2195342146