JS1k: The JavaScript code golfing competition
2010 - The Original
Visualizations of iterations of candidates (along a random straight line) for Julia sets defined by the quadratic polynomials.
- Author:
- Luhr Løvdahl
- Twitter:
- @
- GitHub:
- Facebook:
- Google+:
- +
- Reddit:
- /r/
- Pouet:
- Website:
- Compo:
- classic
- Demo link:
- https://js1k.com/2010-first/demo/517
- Shortlink:
- https://js1k.com/517
- Blog post:
- please update here!
- Bytes:
- 892
- Chars:
- 892
- Submission
D=document,q=D.body,F=q.style,ge=D.getElementById("c"),e=ge.getContext("2d"),f=Math,G=f.PI,a=f.sin,d=f.cos,k=f.random,F.margin=0;F.overflow="hidden";z=ge.width=innerWidth;v=ge.height=innerHeight;e.fillRect(J=0,Q=0,z,v);c=R=I=1000;q.onclick=function(x){R=(x.clientX-z/2)/z*2;I=(x.clientY-v/2)/v*2;reset();};D.onkeypress=function(x){Q=(Q==0)?1:0;};function reset(x){if(x){R=k()-.5;I=k()-.5;}K=k();xD=d(2*K*G)/z*2;yD=a(2*K*G)/v*2;if(Q==0){e.fillStyle="rgba(0,0,0,.5)";e.fillRect(0,0,z,v);}};setInterval(function(V){if((R*R+I*I)>2){reset(1);}J++;j=(d(J/100)+1)*G;r=~~((d(2*K*G+j)+1)/2*255);g=~~((a(2*K*2*G+j)+1)/2*255);b=~~((-d(2*K*G+j)+1)/2*255);e.fillStyle="rgb("+r+","+g+","+b+")";R=R+xD;I=I+yD;r1=R;i1=I;i=0;while(f.sqrt(r1*r1+i1*i1)<2&&i<500){e.fillRect(r1*z/2+z/2,i1*v/2+v/2,2,2);r2=r1*r1-i1*i1+R;i2=2*r1*i1+I;r1=r2;i1=i2;i++;}if(Q==1){e.fillStyle="rgba(0,0,0,.1)";e.fillRect(0,0,z,v);}},1)- Description
- Visualizations of iterations of candidates (along a random straight line) for Julia sets defined by the quadratic polynomials. * Press any key to toggle fading effect. * Click the screen to select the starting point of the random straight line. The direction of the line is random, so clicking the same point twice will not necessarily produce the same result.
- Base64 encoded
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- Original source
Original source not submitted