25-Line Actionscript Contest

[SWF(width=1000, height=800, backgroundColor=0xffffff, frameRate=30)]
var stw:int = 1000, sth:int = 800, container:Sprite = addChild(new Sprite()) as Sprite, bd:BitmapData = (container.addChild(new Bitmap(new BitmapData(stw, sth))) as Bitmap).bitmapData, sh:Shape = new Shape(), lines:Array = [], nLines:int = 50, nPts:int = 20, ran:Function = Math.random, tmp:Object, acc:Vector3D, fr:Number = 0.87, aPos:Vector3D = new Vector3D(), tPos:Vector3D = new Vector3D, mScale:Number = 15, gr:int = ran() * 175 + 55, gv:int = ran() * 175 + 55, gb:int = ran() * 175 + 55, isNeg:Boolean = container.useHandCursor = container.buttonMode = true, letter:Array, w1:Object = {scale:(tmp = 73), x:stw / 2 - Number(tmp) * 3, y:sth / 2 - Number(tmp) * 2.5, letters:[[0, 0, 1, 0, 2, 0, 2, 1, 2, 2, 1, 2, 0, 2, 0, 3, 0, 4, 1, 4, 2, 4], [6, 0, 5, 0, 4, 0, 4, 1, 4, 2, 5, 2, 6, 2, 6, 3, 6, 4, 5, 4, 4, 4]]}, w2:Object = {scale:(tmp = 40), x:stw / 2 - Number(tmp) * 9, y:sth / 2 - Number(tmp) * 2.5, letters:[[0, 0, 0, 1, 0, 2, 0, 3, 0, 4, 1, 4, 2, 4], [4, 0, 4, 1, 4, 2, 4, 3, 4, 4], [6, 4, 6, 3, 6, 2, 6, 1, 6, 0, 7, 1, 8, 3, 9, 4, 9, 3, 9, 2, 9, 1, 9, 0], [13, 0, 12, 0, 11, 0, 11, 1, 11, 2, 12, 2, 11, 2, 11, 3, 11, 4, 12, 4, 13, 4], [17, 0, 16, 0, 15, 0.5, 15, 1, 15, 1.5, 16, 2, 17, 2.5, 17, 3, 17, 3.5, 16, 4, 15, 4]]}, w:Object = w1;
for (var i:int = 0; i < nLines; i++) for (var j:int = 0; j < nPts; j++) ((lines || (lines = []))[i] = lines[i] || []).push( { pos:new Vector3D(mouseX, mouseY), vel:new Vector3D(), cr:((isNeg = i%2 == 0) ? gr : 0xFF - gr) + ran() * 50 - 25, cv:((isNeg) ? gv : 0xFF - gv) + ran() * 50 - 25, cb:((isNeg) ? gb : 0xFF - gb) + ran() * 50 - 25, dir:(ran() > 0.5) ? -2 : 2, t:0, lPos:int(ran() * w.letters[i % w.letters.length].length / 2) * 2 } );
addEventListener(MouseEvent.MOUSE_DOWN, function():void { w = (w == w1) ? w2 : w1;})
addEventListener(Event.ENTER_FRAME, animate);
function animate(e:Event):void
{
	bd.lock();
	bd.fillRect(bd.rect, 0xFFFFFFFF);
	for (var i:int = 0; i < nLines; i++)
	{
		springTo((tmp = lines[i][0]).pos, tmp.vel, tmp.target = (tmp.t-- <= 0) ? (tmp.t = ran() * 10 + 1) && new Vector3D(Math.random() * 20 - 10 + w.x + w.scale * (letter = w.letters[i % w.letters.length ])[tmp.lPos = Math.max(Math.min(tmp.lPos + (tmp.dir *= ((letter[tmp.lPos + tmp.dir] == undefined) ? -1 : 1)), letter.length - 2), 0)], Math.random() * 20 - 10 + w.y + w.scale * letter[tmp.lPos + 1]) :  tmp.target, 0.05);
		springTo(tmp.pos, tmp.vel, (Vector3D.distance(tmp.pos, new Vector3D(mouseX, mouseY)) < 100) ? new Vector3D(tmp.pos.x - mScale * (mouseX - tmp.pos.x), tmp.pos.y - mScale * (mouseY - tmp.pos.y)) : tmp.pos);
		sh.graphics.moveTo(aPos.x = tmp.pos.x += tmp.vel.x *= fr, aPos.y = tmp.pos.y += tmp.vel.y *= fr);
		for (var j:int = 1 ; j < nPts; j++)
		{
			sh.graphics.lineStyle(15 * (1 - j / nPts) + 1, (j / nPts * lines[i][0].cr << 16) | (j / nPts * lines[i][0].cv <<8) | (j / nPts * lines[i][0].cb));
			tPos = aPos.clone();
			springTo((tmp = lines[i][j]).pos, tmp.vel, ((Vector3D.distance(tmp.pos, new Vector3D(mouseX, mouseY)) < 100) ? new Vector3D(tmp.pos.x - mScale * (mouseX - tmp.pos.x), tmp.pos.y - mScale * (mouseY - tmp.pos.y)) : tmp.pos));
			aPos = new Vector3D(tmp.pos.x += tmp.vel.x *= fr, tmp.pos.y += tmp.vel.y *= fr);
			sh.graphics.lineTo(tmp.pos.x = tPos.x, tmp.pos.y = tPos.y);
		}
	}
	bd.draw(sh);
	sh.graphics.clear();
	bd.unlock();
}
function springTo(pos:Vector3D, vel:Vector3D, target:Vector3D, spr:Number = 0.01):void{vel.incrementBy(Vector3D((acc = target.subtract(pos)).scaleBy(spr)) || acc)}
 
// 25 lines ends here!