JS1k: The JavaScript code golfing competition

var b=innerWidth,d=innerHeight;D=document;B=D.body;C=B.children[0];X=C.getContext("2d");B.style.margin="0";B.style.overflow="hidden";wh=b/2;hh=d/2;C.width=b;C.height=innerHeight;mesh=[];var h=0,i,j,k,l,m,n,o=0,p=0,q,r=0,s=0,t=0,u=0,v=0,w=0,A=1,E=1,F=0,G=0;sin=Math.sin;cos=Math.cos;function H(c,a,e,f,g){if(c){c--;a/=2;H(c,a,e+a,f+a,g+a);H(c,a,e+a,f-a,g-a);H(c,a,e-a,f-a,g+a);H(c,a,e-a,f+a,g-a)}else{mesh[h]={x:e,y:f,a:g};h++}}H(7,200,0,0,0);
			setInterval(function(){X.clearRect(0,0,b,d);X.fillStyle="rgb(0,0,0)";G=(new Date).getTime();A=sin(G/4E3)*Math.PI;E=sin(G/8E3)*Math.PI;r=sin(A);s=cos(A);t=sin(E);u=cos(E);v=sin(0);w=cos(0);for(h=16383;--h;){x=mesh[h].x;y=mesh[h].y;z=mesh[h].a;i=s*y-r*z;j=r*y+s*z;l=u*j-t*x;k=t*j+u*x;m=w*k-v*i;n=v*k+w*i;o=wh+m;p=hh+n;q=Math.abs(1-(400+l)*0.0060);F=cos(A*q)*40;X.fillRect(o+F,p+F,q,q)}},10);

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