package {
	import flash.display.MovieClip;
	import flash.geom.ColorTransform;
	import flash.geom.Transform;
	import flash.events.*;
	
	public class Pat extends MovieClip {
		public var xvel:Number = 0;
		public var yvel:Number = 0;
		public var xf:Number = 0;
		public var yf:Number = 0;
		public var lifetime:int;
		public var lifeRem:int;
		

		public function Pat(x:int, y:int, xvel:Number, yvel:Number, lifetime:int, col:int) {
			this.xf = x;
			this.x = x;
			this.yf = y;
			this.y = y;
			this.xvel = xvel;
			this.yvel = yvel;
			this.lifetime = lifetime;
			lifeRem = lifetime;
			var ct:ColorTransform = new ColorTransform();
			ct.color = col
			this.transform.colorTransform = ct;
			this.addEventListener(Event.ENTER_FRAME, move);
		}
		public function move(e:Event):void {
			lifeRem--;
			if (lifeRem == 0) {
				parent.removeChild(this);
				this.removeEventListener(Event.ENTER_FRAME, move);
				return;
			}
			if (lifeRem < 0) return;
			// later, add color changing code here based on lifeRem / lifetime and original color
			// maybe also slow it down or make it turn a bit by messing with velocity
			xf += (lifeRem/lifetime)*xvel;
			yf += (lifeRem/lifetime)*yvel;
			//xvel += xvel * (Math.random() - .5 ) / 2;
			//yvel += yvel * (Math.random() - .5 ) / 2;
			var r:int = Math.random() * 256;
			var g:int = Math.random() * 256;
			var b:int = Math.random() * 256;
			var rgb:int = r << 16 | g << 8 | b;
			var newColor:ColorTransform = new ColorTransform();
			newColor.color = rgb;
			this.transform.colorTransform = newColor;
			x = int(xf);
			y = int(yf);
		}
	}
}