class Invader extends MovieClip
{
	//variables
	var moveDelay:Number;
	var xmov:Number = 10;
	var i:Number;
	var bulletHit:Boolean = false;
	var launcherHit:Boolean = false;
	var score:Number = 0;
	var alienExplode:Sound;
	
	//functions
	function rePlace () 
	{
		bulletHit = false;
		launcherHit = false;
		this._y = (Math.floor (Math.random()*350) +20);
		this._x = (Math.floor(Math.random()*150)+580);
		
		
		
	}
	
	//handlers
	function onEnterFrame ()
	{
		trace (launcherHit);
		this._x -= xmov;
		
		
		if (this._x < -10)
		{
			
			rePlace ();
		}
		
			if ((this.hitTest (_root.bullet)) && bulletHit == false)
			{
				alienExplode.start ();
				launcherHit=true;
				bulletHit = true;
				this.gotoAndPlay ('explode');
				_root.launcher.bulletNo = false;
				_root.launcher.bulletCounter--;
				_root.launcher.score += 100;
				_root.bullet.removeMovieClip();
				
				
				
			}
			
			
	}
	
	function resetGame ()
	{
		_root.score.score = 0;
	}
	
	
	//constructor
	function Invader ()
	{
		
		
		alienExplode = new Sound ();
		alienExplode.attachSound('alienExplode');
		
		
		rePlace ();
		
	}
	
	
}