JS1k: The JavaScript code golfing competition

var X=70,Y='fillStyle',d=X,e=X,f=0,h=3,k=0,l=0,m=[],n=!0,p,q,r=Date.now(),s=c.fillText.bind(c),t=Math.random,u,v,w=2*Math.PI;c.font="30px Arial";b.onkeydown=function(y){k=(y.keyCode-38)%2;l=(y.keyCode-39)%2;d+=X*k;e+=X*l;X>d&&(d=X);X>e&&(e=X);630<d&&(d=630);560<e&&(e=560);X<d&&!m[e/X-1][d/X-2]&&(h--,d=e=X);d/X-2==px&&e/X-1==py&&(f++,x())};function x(){px=~~(8*t())+0;py=~~(8*t())+0;0==m[py][px]&&(m[py][px]=3)}for(u=8;u--;)for(m[u]=[],v=8;v--;)m[u][v]=~~(6*t())+0;x();(g=function(){c[Y]="#34495e";c.fillRect(0,0,a.width,a.height);c[Y]="#2980b9";c.fillRect(90,0,610,630);c.fill();p=Date.now();q=p-r;c[Y]="#27ae60";for(u=8;u--;)for(v=8;v--;)3e3<q&&(m[u][v]+=~~(3*t())+-1,0>m[u][v]&&(m[u][v]=0),5<m[u][v]&&(m[u][v]=5),x(),r=p),c.beginPath(),c.arc(X+X*(v+1),X*(u+1),6*m[u][v],0,w,!0),c.fill();c[Y]="#e74c3c";c.beginPath();c.arc(X+X*(px+1),X*(py+1),6,0,w,!0);c.fill();c[Y]="#f1c40f";c.beginPath();k=l=0;s("☻",d-16,e+8);h?s("Score "+f+"   Lives "+h,90,660):(n=!1,s("Game over",770,30));n&&requestAnimationFrame(g)})();

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

var S = 70, x = S, y = S,
	sc = 0, // sc = score
	l = 3, // l = lives
	dx = 0, dy = 0,
	t = [], // t = tiles
	iG = true,
	now, delta, then = Date.now(),
	f = "fillStyle",
	fr = "fillRect",
	bp = "beginPath",
	k = "keyCode",
	o = c.fillText.bind(c),
	mr = Math.random,
	t1,
    i, j, z = 2*Math.PI, sp = '   '

c.font = "30px Arial"

b.onkeydown = function(e) {
    dx = (e[k] - 38) % 2, dy = (e[k] - 39) % 2;
	x = x + (dx * S)
	y = y + (dy * S)
	// left and top
	if (x < S) x = S
	if (y < S) y = S
	// right and bottom
	if (x > S * 9) x = S*9
	if (y > S * 8) y = S*8
	// check if leaf under player
	if (x > S) {
		if (!t[y/S-1][x/S-2]) {
			l--;
			x = y = S
		}
	}
	if (x/S-2 == px && y/S-1 == py) {
		sc++;
		dot()
	}
}

function dot() {
	px = rnd(0, 7), py = rnd(0, 7)
	if (t[py][px] == 0) t[py][px] = 3
}

function rnd(min, max) {
	return ~~(mr() * (max - min + 1)) + min
}

function init() {
	for (i=8;i--;) {
		t[i] = []
		for (j=8;j--;) {
			t[i][j] = rnd(0, 5)
		}
	}
	dot()
}

init();
(g = function() {
	// clear()
	c[f] = "#34495e";
	c[fr](0, 0, a.width, a.height)
	c[f] = "#2980b9"
	c[fr](90, 0, 610, 630)
	c.fill()

	now = Date.now()
	delta = now - then

    c[f] = "#27ae60"
	for (i=8;i--;) {
		for (j=8;j--;) {
			if (delta > 3000) {
				t[i][j] += rnd(-1, 1)
				if (t[i][j] < 0) t[i][j] = 0
				if (t[i][j] > 5) t[i][j] = 5
				dot()
				then = now
			}
            c[bp]()
			c.arc(S+S*(j+1), S*(i+1), 6*t[i][j], 0, z, true)
            c.fill()
		}
	}

	c[f] = "#e74c3c"
	c[bp]()
	c.arc(S+S*(px+1), S*(py+1), 6, 0, z, true)
	c.fill()
	//drawPlayer()
	c[f] = "#f1c40f"
	c[bp]()
	dx = dy = 0
	o("\u263b", x-16, y+8)

	//drawScores()
	if (l) o("Score "+sc+sp+"Lives "+l, 90, 660)
	else {
		iG = false;
		o("Game over", 770, 30)
	}
	if (iG) requestAnimationFrame(g)
})()