Press space to switch between adding water and adding solid. Click on the screen to place or erase the selected material.
Inspiration from @griffpatch's Terraria-like water project. I did not cheat by looking at his scripts ;) Everything here is new. I guess you could call this a... filler project. *pfffffffffft* (also, this used to by my gelatinous cone thingy so you'll see some irrelevant comments now)
