JS1k: The JavaScript code golfing competition

var $=document,d=c.width=200,h=c.height=300,i=e=!1,k=Math.random;c.style.border="1px solid";a.font="20px arial";f=function(j){return j.keyCode};$.onkeydown=function(j){39==f(j)&&(i=!0);37==f(j)&&(e=!0)};$.onkeyup=function(j){39==f(j)&&(i=!1);37==f(j)&&(e=!1)};for(var l=d/2,m=h/2,n=2,o=2,p=d/2,q=0,r=[],s=1;36>=s;s+=12)for(b=0;4>=b;b++)r.push({x:1+41*b,y:s,a:!0});(function u(){a.clearRect(0,0,d,h);a.fillStyle="black";for(var t=0,g;g=r[t++];)g.a&&a.fillRect(g.x,g.y,40,10),m-12<g.y+12&&l>g.x-12&&l<g.x+40&&g.a&&(g.a=!1,o=-o,n=-n,q++);a.fillStyle="black";a.fillText(q,d/2-5,h/2);a.fillStyle="red";a.fillText("♥",l,m);l+=n;m+=o;if(l>d-12||0>l)l-=n,n=-n;0>m-12&&(m-=o,o=-o);if(m>h){m=d/2;o=n=2;for(t=0;g=r[t++];)g.a=!0,q=0}l>p-30&&l<p+30&&m==h-20&&(o=2+2*k(),n=2+2*k(),0.5<k()&&(l-=n),m-=o,o=-o);a.fillStyle="blue";a.fillRect(p-30,h-20,60,2);i&&(p+=3);e&&(p-=3);setTimeout(u,30)})();

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