package
{
	import flash.geom.Point;

	/**
	 * ...
	 * @author RTLShadow
	 */
	public class AIPaddle extends Paddle
	{
		private var estY:Number;

		public function AIPaddle(gameScreen:GameScreen)
		{
			super(gameScreen)
		}

		override public function eFrame():Boolean
		{
			//AI Algorithm
			if (g.xDir > 0)
			{
				if (estY <= this.y - this.height / 3)
				{
					if (this.y - this.height / 2 > 0)
					{
						if (this.y - estY > g.paddleSpeed)
						{
							this.y -= g.paddleSpeed;
						}
						else
						{
							this.y -= this.y - estY
						}
					}
				}
				else if (estY > this.y + this.height / 3)
				{
					if (this.y + this.height / 2 < stage.stageHeight)
					{
						if (estY - this.y > g.paddleSpeed)
						{
							this.y += g.paddleSpeed;
						}
						else
						{
							this.y -= estY - this.y;
						}
					}
				}
			}
			else
			{
				if (this.y != 300)
				{
					if (this.y < 300)
					{
						if (this.y + g.paddleSpeed > 300)
						{
							this.y += 300 - this.y
						}
						else
						{
							this.y += g.paddleSpeed;
						}
						this.y += g.paddleSpeed
					}
					else if (this.y > 300)
					{
						if (this.y - g.paddleSpeed < 300)
						{
							this.y -= this.y - 300;
						}
						else
						{
							this.y -= g.paddleSpeed;
						}
					}
				}
			}
			// If the ball is not moving towards the AI.
			return super.eFrame();
		}

		public function estimateEnd(ballPos:Point, xDir:Number, yDir:Number):void
		{
			var eY:Number;
			eY = ballPos.y + yDir * (this.x - ballPos.x) / xDir;
			estY = eY;
		}
	}

}