////////////////////////////////////////////////////////////////////////////////

//

//  Zemoga Inc

//  Copyright 2011 Zemoga Inc

//  All Rights Reserved.

//

////////////////////////////////////////////////////////////////////////////////

package com.danta.radialFortress.components

{

	import com.danta.radialFortress.FortressEvent;

	import com.danta.radialfortress.lib.Beam;

	import com.danta.util.ArcHelper;

	

	import flash.display.BlendMode;

	import flash.display.Sprite;

	import flash.filters.GlowFilter;

	

	

	/**

	 * Class description here

	 * 

	 * @author	camilosoto	<email>

	 */

	public class EnemyBullet extends Sprite

	{

		//------------------------------------------------------------------------------

		//

		//  Constants

		//

		//------------------------------------------------------------------------------

		

		//--------------------------------------

		//  Public

		//--------------------------------------

		

		public static var BULLET_SPEED:Number=0.2;

		

		//--------------------------------------

		//  Private

		//--------------------------------------

		

		//------------------------------------------------------------------------------

		//

		//  Static Methods

		//

		//------------------------------------------------------------------------------

		

		////////////////////////////////////////////////////////////////////////////////

		//

		//  Constructor

		//

		////////////////////////////////////////////////////////////////////////////////

		

		public function EnemyBullet(angularPosition:Number, radialDistance:Number)

		{

			createBody();

			this.radialVelocity=BULLET_SPEED;

			this.radialDistance=radialDistance;

			this.angularPosition=angularPosition;

			rotation=ArcHelper.toDeg(-angularPosition);

			this.x=Math.sin(angularPosition)*radialDistance;

			this.y=Math.cos(angularPosition)*radialDistance;

			

		}

		

		//------------------------------------------------------------------------------

		//

		//  Variables

		//

		//------------------------------------------------------------------------------

		

		//--------------------------------------

		//  Public

		//--------------------------------------

		

		//--------------------------------------

		//  Private

		//--------------------------------------

		

		private var _angularPosition:Number;

		private var _radialDistance:Number;

		private var radialVelocity:Number;

		private var lastDeltaT:Number;

		

		//------------------------------------------------------------------------------

		//

		//  Properties (getters/setters)

		//

		//------------------------------------------------------------------------------

		

		//------------------------------------------------------------------------------

		//

		//  Overriden methods

		//

		//------------------------------------------------------------------------------

		

		//------------------------------------------------------------------------------

		//

		//  Methods

		//

		//------------------------------------------------------------------------------

		

		//--------------------------------------

		//  Public

		//--------------------------------------

		

		public function get angularPosition():Number

		{

			return _angularPosition;

		}

		

		public function set angularPosition(value:Number):void

		{

			_angularPosition = value;

		}

		

		public function get radialDistance():Number

		{

			return _radialDistance;

		}

		

		public function get collisionRadialDistances():Array

		{

			return [_radialDistance, radialDistance+radialVelocity*lastDeltaT];

		}

		

		public function set radialDistance(value:Number):void

		{

			_radialDistance = value;

		}

		

		public function draw(deltaT:uint):void

		{

			radialDistance+=radialVelocity*deltaT;

			this.x=Math.sin(angularPosition)*radialDistance;

			this.y=Math.cos(angularPosition)*radialDistance;

			

			if(radialDistance<=0)

			{

				dispatchEvent(new FortressEvent(FortressEvent.BULLET_REACHED_CENTER));

			}

			lastDeltaT=deltaT;

		}

		

		//--------------------------------------

		//  Private

		//--------------------------------------

		

		private function createBody():void

		{

			this.addChild(new Beam());

			this.filters=[new GlowFilter(0xff0000,1,3,8,4)];

		}

		

		//------------------------------------------------------------------------------

		//

		//  Event Handlers

		//

		//------------------------------------------------------------------------------

		

	}

}