JS1k: The JavaScript code golfing competition

eval('Z f(e){g=g?q.createElement("canvas"):q.body.children.c;g.width=e*100;g.height=c;a=g.getContext("2d");r.push(g);for(b in a)a[(b[7]||b[0])+b[b[2].charCodeAt(0)%b.length]]=a[b]}Z m(e,n,o){a.sv();a.rotate(o);a.tt(0,-e);a.sa(n,n);o=l;l*=n;s();a.restore();l=o}Z s(){if(l>.04)if(d(1)<.04){m(0,.7,-.15);m(0,.7,.15)}else{a.tR(0,0,9,9);m(4,1,d(1)<.5?.08:-.08)}}Z d(e){return t.random()*e}Z h(e){a.fillStyle=e}var a,g,q=document,t=Math,r=[],w="#FFF",c=400,p=i=0,l=1,b=f(9),j=a;f(9);k=a;h(w);f(9);u=a;h("rgba(0,0,0,.05)");f(10);for(h(w);i++<200;)a.tR(d(1E3),d(c),d(3),d(3));f(15);b=a.ar(c,120,20,c,120,900);b.P=b.addColorStop;b.P(.1,w);b.P(.11,"rgba(255,255,255,.3)");b.P(1,"rgba(4,129,227,0)");h(b);a.tR(0,0,1500,c);f(20);h("#002b57");for(a.tt(c,c);p++<4;a.tt(c,0))s();setInterval(Z(){j.ce(0,0,900,c);j.gg(k.cn,0,0);k.ce(0,0,900,c);k.gg(j.cn,-1,1);u.tR(0,0,900,c);u.gg(k.cn,0,0);d(1)<.03&&k.tR(d(1E3),0,d(3),d(3));j.tR(0,0,900,c);for(i=1;++i<6;)j.gg(b=r[i],t.abs(p%2-1)*-(b.width-900),0);p+=.0010},10)'.replace(/Z/g,'function'))

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