JS1k 2013 - 1431 - Details - A sunny JavaScript golfing competition

Author:

Piotr Stosur

Twitter:

GitHub:

Facebook:

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Reddit:

/r/

Pouet:

Website:

Compo:

classic

Demo link:

https://js1k.com/2013-spring/demo/1431

Shortlink:

https://js1k.com/1431

Blog post:

please update here!

Bytes:

544

Chars:

544

Submission

c.width=800;
c.height=600;
v=450;
t=0;o=255;m=Math;
function i(){
t+=0.01;
w=600+m.sin(t)*100;
r=m.floor(m.sin(t*3)*o);
g=m.floor(m.sin(t*5)*o);
n=m.floor(m.sin(t*7)*o);
with(a){
fillStyle="rgba(0,0,0,0.005)";
fillRect(0, 0, w, w);
fillRect(w, w, w, w);
fillStyle="rgba("+r+","+g+","+n+",0.1)";
fillRect(w, 0, w, w);
fillRect(0, w, w, w);
drawImage(c,0,w,w,w);
drawImage(c,w,w,w,w);
drawImage(c,w,0,w,w);
drawImage(c,0,0,w,w);
translate(v,v);
rotate(0.01*m.abs(m.sin(t)));
translate(-v,-v);}
setTimeout('i()',10);}
i();

Description

Animated fractal shapes(mainly rotating spirals) similar to CEVs after taking psychedelic/dissociative drugs. :P Based on copying previous frame into 4 smaller fragments(once per frame, no other kind of iterations) so it's much faster than per-pixel fractal generators.

Base64 encoded

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Original source

Original source not submitted

JS1k: The JavaScript code golfing competition

2013 - Spring!

Psychedelic animation