Starling Framework使う時のコピペ用ドキュメントクラス

starlingTemplate.as

package 
{
    import starling.core.Starling;

    import flash.display.Sprite;
    import flash.display.StageAlign;
    import flash.display.StageScaleMode;
    import flash.events.Event;
    import flash.geom.Rectangle;

    /**
    * starling つかうときのコピペ用ドキュメントクラス
    */
    public class StarlingSample extends Sprite
    {
        private var _starling : Starling;
        public function StarlingSample()
        {
            if(stage) _initialize(null); 
            else  addEventListener(Event.ADDED_TO_STAGE, _initialize);

        }

        private function _initialize(event : Event) : void
        {
            removeEventListener(Event.ADDED_TO_STAGE, _initialize);
            stage.scaleMode = StageScaleMode.NO_SCALE;
            stage.align = StageAlign.TOP_LEFT;

            this.mouseEnabled = false;
            this.mouseChildren = false;
            this.loaderInfo.addEventListener(Event.COMPLETE, loaderInfo_completeHandler);
        }



        private function loaderInfo_completeHandler(event : Event) : void
        {
            Starling.handleLostContext = true;
            Starling.multitouchEnabled = false;

            _starling = new Starling(Main, stage);
            _starling.enableErrorChecking = true;
            _starling.start();

            this.stage.addEventListener(Event.RESIZE, stage_resizeHandler, false, int.MAX_VALUE, true);
            this.stage.addEventListener(Event.DEACTIVATE, stage_deactivateHandler, false, 0, true);
        }

        private function stage_resizeHandler(event : Event) : void
        {
            _starling.stage.stageWidth = stage.stageWidth;
            _starling.stage.stageHeight = stage.stageHeight;

            const viewPort : Rectangle = _starling.viewPort;
            viewPort.width = stage.stageWidth;
            viewPort.height = stage.stageHeight;
            try {
                _starling.viewPort = viewPort;
            }
            catch(error : Error) {
            }
        }

        private function stage_deactivateHandler(event : Event) : void
        {
           _starling.stop();
            stage.addEventListener(Event.ACTIVATE, stage_activateHandler, false, 0, true);
        }

        private function stage_activateHandler(event : Event) : void
        {
            stage.removeEventListener(Event.ACTIVATE, stage_activateHandler);
            _starling.start();
        }
    }
}