Green dots are kobolds.
Magenta (purple) dots are goblins.
Gray dots are walls.
The kobolds and goblins are in the dark stumbling around randomly.
The kobolds and goblins are mortal enemies.
When they can find their enemies, they slay them.
The goblins have a secret weapon, short-range infravision.
The infravision lets them see in the dark any kobolds that are
right next to them.
You can toggle the goblins infravision on and off by clicking your
mouse on the screen.