Style changes, fixed a bug which didn't update map after dynamite used

Next thing to do is some form of rudimentary pathfinding, I was just
going to get the agent to walk around and discover the map on its own
to begin with.
Walk in a big, unchanging square
Follows the 'coast' infinitely

I'm not sure whether this will hold up to other maps (convex surfaces,
for example), but works okay here. I'm going to start making this more
'Java' soon as well.
Test commit access