JS1k: The JavaScript code golfing competition

d=document.getElementById("c");k=350;d.width=k;d.height=k;c=d.getContext("2d");function ra(a,e){return Math.random()*(e-a)+a}function n(a,e,f,g){return Math.sqrt((a-f)*(a-f)+(e-g)*(e-g))}function p(a,e,f,g,h){u=Math.atan2(e,a);v=a+f*Math.cos(u);b=e+f*Math.sin(u);c.beginPath();c.moveTo(v,b);for(o=u;o<6+u;o+=6/g)c.lineTo(a+f*Math.cos(o),e+f*Math.sin(o));c.lineTo(v,b);c.fillStyle=h?"#a9ffa9":"#a9a9ff";c.closePath();c.fill();c.stroke()}
function ok(a,e,f,g){for(j=1;j<a;j++)if(n(e[a],f[a],e[j],f[j])<g[a]+g[j])return false;if(n(e[a],f[a],175,175)+g[a]>g[0])return false;return true}x=[];y=[];r=[];s=[];x[0]=175;y[0]=175;r[0]=175;s[0]=1;mR=43;mT=500;t=0;for(i=1;t<mT;i++){r[i]=2;s[i]=ra(5,10);for(t=0;t<mT;t++){x[i]=ra(2,k-r[i]);y[i]=ra(2,k-r[i]);if(ok(i,x,y,r))break}if(t>=mT)break;do if(ok(i,x,y,r,1))r[i]++;else break;while(r[i]<=mR);p(x[i],y[i],r[i],s[i])}
document.onmousemove=function(a){c.clearRect(0,0,k,k);for(j=1;j<i;j++)p(x[j],y[j],r[j],s[j],n(a.pageX,a.pageY,x[j],y[j])<70)};

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

d = document.getElementById("c");

k = 350;

d.width = k;
d.height = k;

c = d.getContext("2d");

function ra(g, h) {
	return Math.random()*(h-g)+g;
}

function n(v, b, l, k) {
	return Math.sqrt((v-l)*(v-l)+(b-k)*(b-k));
}

function p(x, y, r, s, f) {
	u = Math.atan2(y, x);
    v = x+r*Math.cos(u);
    b = y+r*Math.sin(u);
    
    c.beginPath();
	c.moveTo(v, b);
	for (o = u; o < 6+u; o+=6/s) c.lineTo(x+r*Math.cos(o), y+r*Math.sin(o));
	c.lineTo(v, b);
	c.fillStyle = f ? "#a9ffa9" : "#a9a9ff";
	c.closePath();
	c.fill();
	c.stroke();
}

function ok(i, x, y, r) {
	for (j = 1; j < i; j++) if (n(x[i], y[i], x[j], y[j]) < r[i]+r[j]) return false;
	if (n(x[i], y[i], 175, 175)+r[i] > r[0]) return false;
	return true;
}

x = [];
y = [];
r = [];
s = [];

x[0] = 175;
y[0] = 175;
r[0] = 175;
s[0] = 1;

mR = 43;
mT = 500;
t = 0;

for (i = 1; t < mT; i++) {
	r[i] = 2;
	s[i] = ra(5, 10);
	
	for (t = 0; t < mT; t++) {
		x[i] = ra(2, k-r[i]);
		y[i] = ra(2, k-r[i]);
		
		if (ok(i, x, y, r)) break;
	}
	
	if (t >= mT) break;
		
	do {
		if (ok(i, x, y, r, 1)) r[i]++;
		else break;
	} while (r[i] <= mR);
	
	p(x[i], y[i], r[i], s[i]);
}

document.onmousemove = function(e) {
	c.clearRect(0, 0, k, k);
				
	for (j = 1; j < i; j++) p(x[j], y[j], r[j], s[j], n(e.pageX, e.pageY, x[j], y[j]) < 70);
}