JS1k: The JavaScript code golfing competition

var i=document,h=i.getElementById("c"),f=300,g=150,l=k=q=1,A="addColorStop",e=Math,x=e.random,b=h.getContext("2d"),j,d=100,o=new Image(),p=new Image(),c=[],F="fillStyle",Q="#fff",n=[],C="closePath",W="fill",B="beginPath",T=W+"Text",D="drawImage",E='xUAOw%3D%3D',G="data:image/gif;base64,R0lGODlhC";h=5;while(h--){n[h]=[x()*g,f,x()*9]}o.src=G+"gAKAJEDAF8XF50DBSYcIQAAACH5BAEAAAMALAAAAAAKAAoAAAIdnACjaxLBlDgvTprkQQ+IhgDdcYXIUgaZJq5SG"+E;p.src=G+"wAOAIAAAPKyUQAAACH5BAEAAAEALAAAAAALAA4AAAIajA95G6mM3gJNTsecjRQanGmQ9pCiKYbbh"+E;function r(){n.forEach(function(a){if(40<a[1]+15&&77>a[1]&&d+38>a[0]&&d<a[0]+15)q=0;if(a[1]+15<0){a[1]=f;a[0]=x()*g;a[2]=l/6}else a[1]-=a[2];b[F]="#A7D";b.fillRect(a[1],a[0],30,30)})}function X(){b[F]="#046";b[B]();b.rect(0,0,f,g);b[C]();b[W]();try{b[D](o,40,d,37,38);b[D](p,0,7*k,11,7,18,d+12,22,14);k==0?k=1:k=0}catch(m){}r();b[F]=Q;b[T](l,5,9);l++;q&&setTimeout(X,99)}i.onmousemove=function(a){if(d<a.pageY&&d+38<g)d+=5;if(d>a.pageY)d-=5};X()

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(function (g) {
    var f = g.getElementById("c"),
        j = 0,
        c = Math,
        b = f.getContext("2d");
    f.width = 640;
    f.height = 300;
    var k = function () {
        b.fillStyle = "#046";
        b.clearRect(0, 0, 640, 300);
        b.beginPath();
        b.rect(0, 0, 640, 300);
        b.closePath();
        b.fill()
    },
        d = [],
        h, l = [];
    for (f = 0; f < 7; f++) {
        d.push([c.random() * 640, c.random() * 300, c.random() * 99, c.random() / 5]);
        l.push([c.random() * 300, 670, c.random() * 30, ~~ (c.random() * 2)])
    }
    var e = 100,
        m = g.createElement("img"),
        n = g.createElement("img"),
        i = 0;
    m.src = "data:image/gif;base64,R0lGODlhCgAKAJEDAF8XF50DBSYcIQAAACH5BAEAAAMALAAAAAAKAAoAAAIdnACjaxLBlDgvTprkQQ+IhgDdcYXIUgaZJq5SGxUAOw%3D%3D";
    n.src = "data:image/gif;base64,R0lGODlhCwAOAIAAAPKyUQAAACH5BAEAAAEALAAAAAALAA4AAAIajA95G6mM3gJNTsecjRQanGmQ9pCiKYbbhxUAOw%3D%3D";
    var p = function () {
        l.forEach(function (a) {
            if (40 < a[1] + 30 && 77 > a[1] && e + 38 > a[0] && e < a[0] + 30) {
                o = 0;
                k();
                b.fillStyle = "#fff";
                b.fillText("GameOver", 270, 150)
            }
            if (a[1] + 30 < 0) {
                a[1] = 670;
                a[0] = c.random() * 300;
                a[2] = ~~ (j / 30) + 30 * c.random()
            } else a[1] -= a[2];
            h = b.createRadialGradient(a[1] + 30, a[0] + 30, (a[3] + 1) * 5, a[1] + 30, a[0] + 30, 30);
            h.addColorStop(0, "#A7D");
            h.addColorStop(1, "rgba(62,0,255,0)");
            b.fillStyle = h;
            b.fillRect(a[1], a[0], 60, 60);
            a[3] == 0 ? a[3] = 1 : a[3] = 0
        })
    },
        o = 1;
    (function () {
        k();
        for (var a = 0; a < 7; a++) {
            b.fillStyle = "rgba(0, 170, 255, " + d[a][3] + ")";
            b.beginPath();
            b.arc(d[a][0], d[a][1], d[a][2], 0, c.PI * 2, true);
            b.closePath();
            b.fill()
        }
        for (a = 0; a < 7; a++) if (d[a][0] + d[a][2] < 0) {
            d[a][1] = c.random() * 300;
            d[a][2] = c.random() * 100;
            d[a][0] = 640 + d[a][2];
            d[a][3] = c.random() / 5
        } else d[a][0] -= 10 * (a / 2 + 1);
        try {
            b.drawImage(m, 40, e, 37, 38);
            b.drawImage(n, 0, 7 * i, 11, 7, 18, e + 12, 22, 14);
            i == 0 ? i = 1 : i = 0
        } catch (q) {}
        p();
        b.fillStyle = "#fff";
        b.fillText("KM " + j, 5, 9);
        j++;
        o && setTimeout(arguments.callee, 99)
    })();
    g.onmousemove = function (a) {
        if (e < a.pageY) {
            if (e + 38 < 300) e += 5
        } else if (e > a.pageY) if (e > 0) e -= 5
    }
})(document);