Nice! Love the style and especially the idea of formulating it formally as a Margolus cellular automaton.
I can’t recall all the rules of falling sand games: Is there any way of getting rid of lava? Also, I had a hard time, properly mixing salt and water—the salt-water formed a barrier between the two.
(Other experience reports: Windows build was playable on Wine/Linux, albeit with only okayish performance on my work laptop.)
It should be possible to build from source on Linux to get a native binary, which might perform better. I will tweak the physics a bit, i'm not happy with some of the relative falling/dispersal rates. The salt water being a barrier and the lava being indestructible are symptoms of this..
Edit: Thanks for the feedback!
I've now released a new version with improved physics, I think. The gravity effects are now relative to the medium, so salt should move through water more quickly. I also tweaked lava so that it's possible to destroy thin spreads of lava using copious amounts of water. If there is a lot of lava, you get a nice boiler instead.. A side effect of the physics tweaks is that steam escapes faster from water giving a nice "boiling" effect.
