grafx - Extensible Java Graphics Package Code

Adding a BLO file of the computer playing a very hard level.

Upping the COVERED_HOLE_METRIC weight a massive, massive amount, and improving
the PLUG_THE_HOLE metric a bit, so that it's sensitive to a hole which is 2
units deep. The algorithm seems to perform superbly now on level 23.

Making some very minor tweaks. Trying to pass the ultra-hard level 24 on a
regular basis. Still no cigar.

Adding commented out code which prints the covered hole metric.

Adding commented out code for custom BlockSource.

Level 5, changing depth of pit from 7 to 9.

Whoa. This is difficult. The Eval function works well but there are some
loose ends to tie up. Documentation etc.

Adding launch-easy-level-test.sh.

Adding another example of the computation for max column in covered hole.

Breaking out the baseBlockSource.