JS1k: The JavaScript code golfing competition

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

var {sin,cos,PI,sqrt,atan2}=Math;

function R(x,y,z){
	x-=T,y-=U,z-=V;
	p=atan2(x,z),d=sqrt(z*z+x*x),x=sin(p-yw)*d,z=cos(p-yw)*d;
	p=atan2(y,z),d=sqrt(y*y+z*z),y=sin(p-Y)*d,z=cos(p-Y)*d;
	n=-9,b=1,l=9,d=1,e=0,f=0,g=x,h=z,k=(h-f)*(l-n)-(g-e)*(d-b),m=((g-e)*(b-f)-(h-f)*(n-e))/k;
	return {x:1000+(n+m*(l-n))*900,y:563+y/z*900};
}

function S(x1,y1,z1,x2,y2,z2){
	this.a={x:x1,y:y1,z:z1};
	this.b={x:x2,y:y2,z:z2};
}

function C(x,y,z){

	Q={};
	Q.x=x;
	Q.y=y;
	Q.z=z;
	Q.s=[];
	Q.s.push(new S(-1,-1,-1,1,-1,-1));
	Q.s.push(new S(1,-1,-1,1,1,-1));
	Q.s.push(new S(1,1,-1,-1,1,-1));
	Q.s.push(new S(-1,1,-1,-1,-1,-1));
	Q.s.push(new S(-1,-1,1,1,-1,1));
	Q.s.push(new S(1,-1,1,1,1,1));
	Q.s.push(new S(1,1,1,-1,1,1));
	Q.s.push(new S(-1,1,1,-1,-1,1));
	Q.s.push(new S(-1,-1,-1,-1,-1,1));
	Q.s.push(new S(1,-1,-1,1,-1,1));
	Q.s.push(new S(1,1,-1,1,1,1));
	Q.s.push(new S(-1,1,-1,-1,1,1));
	return Q;
}


function dr() {

	c.fillRect(0, 0, a.width, a.height);

	d = sqrt(T * T + V * V);
	t = cos(W / 80) / 200;
	p = atan2(T, V) + t;
	T = sin(p) * d;
	V = cos(p) * d;
	yw = PI + p;
	i=X.length;
	while(i--){
		x=X[i].x;
		y=X[i].y;
		z=X[i].z;
		X[i].y=sin(sqrt(x*x+z*z)/16-W/15)*9+5;
		c.strokeStyle="hsla("+-y*10+",100%,50%,1)";
		c.beginPath();
		j=12;
		while(j--){
			pta=R(x+X[i].s[j].a.x,y+X[i].s[j].a.y,z+X[i].s[j].a.z);
			ptb=R(x+X[i].s[j].b.x,y+X[i].s[j].b.y,z+X[i].s[j].b.z);
			c.moveTo(pta.x,pta.y);
			c.lineTo(ptb.x,ptb.y);
		}
		c.stroke();
	}

	requestAnimationFrame(dr);
	W++;
}

/* remove before minifying */
	c=a.getContext("2d");
/***************************/

a.width=1000*2;
a.height=563*2;
W = T = 0, Y=.6, U=-80, V = -190;
X=[];
for(i=-18;i<=18;++i) for(j=-18;j<=18;++j) X.push(C(i*6,0,j*6));
dr();