JS1k: The JavaScript code golfing competition

var b=[[1,-1,-1],[-1,-1,-1],[1,1,-1],[-1,1,-1],[-1,1,1],[-1,-1,-1],[-1,-1,1],[1,-1,-1],[1,-1,1],[1,1,-1],[1,1,1],[-1,1,1],[1,-1,1],[-1,-1,1]];s1=[];t=0;m=Math;j=500;l=j/2;function f(d,e){return d[1]-e[1]}function g(d,e){return[d[0],m.sin(e)*d[1]-m.cos(e)*d[2],m.cos(e)*d[1]+m.sin(e)*d[2]]} function h(){w=document.getElementById("c");w.width=w.height=j;c=w.getContext("2d");c.fillRect(0,0,j,j);for(i=0;i<b.length;i++){var d;d=g([g([b[i][0],b[i][1],b[i][2]],t)[1],g([b[i][0],b[i][1],b[i][2]],t)[0],g([b[i][0],b[i][1],b[i][2]],t)[2]],t);d=[d[0]+0,d[1]+0,d[2]+0];b[i]=[b[i][0],b[i][1],b[i][2],d[0]*(j/(d[2]-5)),d[1]*(j/(d[2]-5)),d[2]]}for(i=0;i<b.length-2;i++)s1[i]=[i,m.min(b[i][5],m.min(b[i+1][5],b[i+2][5]))];s1.sort(f);for(i=0;i<s1.length;i++){c.beginPath();for(a=s1[i][0];a<s1[i][0]+3&&b.length>= s1[i][0]+3;a++)a==s1[i][0]?c.moveTo(b[a][3]+l,b[a][4]+l):c.lineTo(b[a][3]+l,b[a][4]+l);c.closePath();c.fillStyle="rgba("+(80+i*3)+","+(54+i*3)+","+(l+i*3)+",.99)";c.fill()}t=(t+m.PI/100)%(m.PI*2);setTimeout(h,22)}h();

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