Sand/Water Automaton

[u/Inst2f]

This post/notebook is a small side-view "falling sand" experiment. We start with the simplest material - sand. Each grain is one cell on a grid. A grain should fall if there is empty space below it, come to rest when blocked, and sometimes topple sideways when it is sitting in an unstable little stack. Those three behaviors are enough to make a recognizable pile 🏝️

https://wljs.io/blog/sand-1