0.1.0 - SimpleErosion

https://esm.sh/gh/gnlow-learn/SimpleHydrology@0.1.0/index.html

Ref

https://nickmcd.me/2020/04/10/simple-particle-based-hydraulic-erosion/
https://github.com/weigert/SimpleErosion

const dt = 1.2
const density = 1
const friction = 0.05
const depositionRate = 0.1
const evapRate = 0.001