JS1k: The JavaScript code golfing competition

with(document.body.style){margin="0px";overflow="hidden";}var w=window.innerWidth;var h=window.innerHeight;var ca=document.getElementById("c");ca.width=w;ca.height=h;var c=ca.getContext("2d");m=Math;fs=m.sin;fl=m.floor;setInterval(d,30);var sd=0;var sd2=50;var xr=100;var yr=50;var mp=new Array();function f(){var s=0;for(var x=0;x<xr;x++){mp[x]=20+(m.random()*(h/100))+(fs(sd2)+fs(s+fs(sd))+2)*(h/40);s+=(m.PI*fs(sd2)*7)/xr;}sd+=0.081;sd2+=0.0175;}function d(){c.fillStyle="rgb(0,20,30)";c.fillRect(0,0,w,h);for(var y=0;y<yr;y++){for(var x=0;x<xr;x++){var d=mp[y*xr+x];var dw=dz*(w/xr)+1;var dh=d*dz;var dz=1+y/10;var dx=w/2-dz*(xr/2)*(w/xr)+dz*x*(w/xr);var dy=h/4+y*((h/2)/(yr))*dz;var dst=(y/(yr/2))*100;var hm=dh/(20+100+4*(h/40));c.fillStyle="rgb("+fl(dst+hm*150)+","+fl(dst+40+m.sin(sd)*40)+","+fl(dst+30+fs(sd2)*20)+")";if(dx+dw>=0&&dx<=w){if(dy-dh<=h){c.fillRect(dx,dy-dh,dw,dh);}}}}for(var y=yr-1;y>0;y--){for(var x=0;x<xr;x++){mp[y*xr+x]=mp[(y-1)*xr+x];}}f();}

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