Press space to interact with water (click near the surface) Press M to switch modes - In mode 1, click and drag to place a water area. In mode 2, click a water area to delete it.
I might make this into a game eventually, but right now all it's just an experiment. The water doesn't actually have a constant volume, but it works well in volumes that aren't really thin. I made this mainly because of a boat game I saw, which has the same kind of water.
