Beginner problem with classes :(

programming flash
1

Hi!

I’m trying to learn how to use classes in AS3 and I’ve run into a problem…

  • I have a main class and another class for the bullets the character shoots.
  • The bullets are supposed to move towards the crosshair when added to stage.

The crosshair is added to the stage directly, but even so I get this error that says “Access of undefined property aimMC”.

Oh, and the bullets are added to stage when I press SPACE.


public function Main() {
			
			drawObjects();



private function drawObjects():void {
			player.x = stage.stageWidth /2;
			player.y = 380;
			stage.addChild(player);
			
			aimMC.x = stage.stageWidth /2;
			aimMC.y = stage.stageHeight /2;
			stage.addChild(aimMC);
		}

Then, in the bullet class, I have:


public function AmmoMC() {
			
			this.addEventListener(Event.ENTER_FRAME, moveAmmo, false, 0, true);



private function moveAmmo(evt:Event):void {
			
			var x:Number = aimMC.x;
			var y:Number = aimMC.y;
			this.x += (x - this.x);
			this.y += (y - this.y);
			
			if (_xpos < 0 || _xpos > stage.stageWidth || _ypos < 0 || _ypos > stage.stageHeight) {
				removeEventListener(Event.ENTER_FRAME, moveAmmo);
				parent.removeChild(this);
			}
		}

What do you think is wrong?