CenterStage element

programming flash
1

I’m a bit new to AS3 (It’s just a hobby) and I wanted a opinion regarding how to go about creating a center stage element. I’ve got two versions so far, one just adds the element from the document class and the second creates a new instance.

Every time I ask about OOP I get a new answer. Some say only use it if you plan to re-use the code in the same script, some say use it as much as possible because it’s there to compartmentalize. I’ve never gotten a straight answer so please excuse me if I utilized it incorrectly.

Here is what I’m presently using, it works but I want to be sure my comprehension of the feature isn’t flawed.



package {
    import flash.display.Sprite;
    import components.centerstage;

    public class index extends Sprite {
        private var centerStage:centerstage;
        
        public function index():void {
            centerStage = new centerstage(stage);
        }
    }
}





package components
{
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.display.Stage;

    public class centerstage extends Sprite
    {

        // -----[ Creates container ]-----

        public function centerstage(target:Stage):void {
            target.stage.addEventListener(Event.RESIZE, centerContainer);
            this.addEventListener(Event.ADDED, centerContainer);
            target.addChild(this);
        }
        
        // -----[ Centers the container ]-----
        
        private function centerContainer(event:Event):void {
            this.x = Math.round((stage.stageWidth/2)-(this.width/2));
            this.y = Math.round((stage.stageHeight/2)-(this.height/2));
        }
    }
}

Also, if anyone sees what is considered to be a bad habit or has suggestions on optimizing it would be greatly appreciated. Thanks in advance!