EnemyShip.as

class EnemyShip extends MovieClip {
	
	var speed;
	var shootTimer;
	
	function onLoad() {
		_x = 700;
		_y = Math.random() * 260 + 40;
		speed = Math.random() * 5 + 5;
		shootTimer = 0;
	}
	
	function onEnterFrame() {
		_x -= speed;
		shootTimer += 1;
		
		if ( _x < -100) {
			this.removeMovieClip();
		}
		
		if (this.hitTest(_root.ship)) {
			explode();
		}
		
		if (shootTimer > 30) {
			shootTimer = 0;
			var missile = _root.attachMovie("EnemyMissile", "EnemyMissile"+_root.getNextHighestDepth(),_root.getNextHighestDepth());
			missile._x = _x -50;
			missile._y = _y +2;
		}
		
	}
	
	function explode() {
		var explosion = _root.attachMovie("Explosion", "Explosion" + _root.getNextHighestDepth(),_root.getNextHighestDepth());
		explosion._x = _x;
		explosion._y = _y;
		this.removeMovieClip();
	}
}