Made a sand simulator

i made this cool sand falling simulator.

Made a sand simulator

i made this cool sand falling simulator.

im proud of the rendering algorithm.

first time i actually got recursion to work and make it faster!

normally give up at "max call stack exceeded" :/.

thank you chat gpt!

DEMO

Play the game here!

falling sand game by wisemonkey -p5.js Web Editor
A web editor for p5.js, a JavaScript library with the goal of making coding accessible to artists, designers, educators, and beginners.

Dev progress

i saw a developer talk about making a sand falling game.

and realized its just a super cellular automata like simulation! which was super exciting because i just reciently did something similar

cellular automata
i made a program for generating cellular automata

I saw the coding description and said i got to make me one of those!

alt text

My progress over time

mine: got sand falling on the first try*!

(* ) minus some bugs

then got the sand piling beahvor setup

tried scaling it up but it was WAY TOO SO.

Here where recursion comes in.

How the algorithm works

create a square test to see if it has any pixels in it.

remove ones with no pixels

keep sub dividing

until you have sufficient accuracy.

for me it ended up be maxing out at 20 sub divisions

Speed

improved the speed from 1 second per draw to 16ms!

thats more like it!

twittling with settings

Draw without borders looks cool

Quadtree

I think its similar to this thing called a quad tree

A quadtree.
Quadtree - Wikipedia

Just found out what its called when making this writeup. COOL!

i think they have some cool effiancy things

like storing the quadrents as left right nodes of a tree like this. very cool

Bitmap and its compressed quadtree representation

undefined

example from Wikipedia

More things you might like!

ant simulator

ant simulator
antwarfare simulator by wisemonkey -p5.js Web EditorA web editor for p5.js, a JavaScript library with the goal of making coding accessible to artists, designers, educators, and beginners. GitHub - wisehackermonkey/antwarfare: ant game were super colones duke it out for supremacyant game were super c…

Thanks for reading!

Author

by oran collins
github.com/wisehackermonkey

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