JS1k: The JavaScript code golfing competition

u=0,q=2,d=a.getContext('2d'),e=4,f=7,h=Math,k=y=250,l=t=270,m='beginPath',n='fillStyle',p='fill',s='arc';setInterval("2==q&&t>=l&&1==u&&(q=-2,l=t,f=7);-2==q&&t<=l&&0==u&&(q=2,l=t,f=7);2==q&&0>=f?u=1:-2==q&&0>=f&&(u=0);0==u&&2==q?f-=1:1==u&&-2==q?f-=1:1==u&&2==q?f++:0==u&&-2==q&&(f++);0==u?l+=1.3*f:1==u&&(l-=1.3*f);e=l*h.PI/180;d.clearRect(0,0,500,500);for(g=-2;3>g;g++){q==g?(k+=y*h.cos(e),y=-y*h.sin(e)):k=y=250;d[m]();d.moveTo(250+40*g+g,-20);d.lineTo(k+40*g,y);d.strokeStyle='#000';d.stroke();d[m]();c=k+40*g;d[s](c,y,20,1.5,3.6,0);d[s](c,y,10,2.6,0.5,1);d[s](c,y,20,1.6,3.7,0);d[n]='#080';d[p]();d[m]();d[s](c,y,20,3.7,5.8,0);d[s](c,y,10,4.7,2.6,1);d[s](c,y,20,3.7,3.7,0);d[n]='red';d[p]();d[m]();d[s](c,y,20,5.8,1.6,0);d[s](c,y,10,0.5,4.7,1);d[s](c,y,20,5.8,5.8,0);d[n]='#FF0';d[p]();d[m]();d[s](c,y,10,0,6.3,0);d[s](c,y,20/2.4,0,6.3,1);d[n]='#FFF';d[p]();d[m]();d[s](c,y,20/2.4,0,6.3,0);d[n]='#00F';d[p]()}",50);

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

var aa = document.getElementsByTagName('canvas')[0];
var a = 0;
var q = 2;
var c = aa.getContext('2d');
var d = 4;
var e = 'fillStyle';
var f = 'beginPath';
var g = 7;
var h = Math;
var r =  20;
var x = y = 250;
var j = 270;


setInterval(function () {
    if (q == 2 && 270 >= j && a == 1) {
        q = -2;
        j = 270;
        g = 7;
    }
    if (q == -2 && j >= 270 && a == 0) {
        q = 2;
        j = 270;
        g = 7;
    }
    if (q == 2 && 0 >= g) {
        a = 1;
    } else if (q == -2 && 0 >= g) {
        a = 0;
    }
    if (a == 0 && q == 2) {
        g -= 1;
    } else if (a == 1 && q == -2) {
        g -= 1;
    } else if (a == 1 && q == 2) {
        g += 1;
    } else if (a == 0 && q == -2) {
        g += 1;
    }
    if (a == 0) {
        j += 1.3 * g;
    } else if (a == 1) {
        j -= 1.3 * g;
    }
    d = j * h.PI / 180;
    c.clearRect(0, 0, 500, 500);
    for (var i = -2; 3 > i; i++) {
        if (q == i) {
            x = x + y * h.cos(d);
            y = -y * h.sin(d);
        } else {
            x = y = 250;
        }
        c.beginPath();
        c.moveTo(500 / 2 + r * 2 * i + i, -20);
        c.lineTo(x + r * 2 * i, y);
        c.strokeStyle = "#000";
        c.stroke();
        c.beginPath();
        ch((x + r * 2 * i));
    }

    function ch (x) {
        c.arc(x, y, r, 1.5, 3.6, 0);
        c.arc(x, y, r/2, 2.6, 0.5, 1);
        c.arc(x, y, r, 1.6, 3.7, 0);
        c[e] = '#080';
        c.fill();
        c[f]();
        c.arc(x, y, r, 3.7, 5.8, 0);
        c.arc(x, y, r/2, 4.7, 2.6,1);
        c.arc(x, y, r, 3.7, 3.7, 0);
        c[e] = 'red';
        c.fill();
        c[f]();
        c.arc(x, y, r, 5.8, 1.6, 0);
        c.arc(x, y, r/2, 0.5, 4.7,1);
        c.arc(x, y, r, 5.8, 5.8, 0);
        c[e] = '#FF0';
        c.fill();
        c[f]();
        c.arc(x, y, r/2, 0, 6.3, 0);
        c.arc(x, y, r/2.4, 0, 6.3, 1);
        c[e] = '#FFF';
        c.fill();
        c[f]();
        c.arc(x, y, r/2.4, 0, 6.3, 0);
        c[e] = '#00F';
        c.fill();
    };
}, 50);