package blix {
    import blix.signals.ISignal;
    import assets.TwoFrames;
    import blix.signals.Signal;

    /**
     * @author nbilyk
     */
    public class EnterFrame extends TwoFrames {

        private static var _run:Signal;
        private static var _instance:EnterFrame;

        public function EnterFrame(s:SingletonEnforcer) {
            super();
            _run = new Signal();
            addFrameScript(1, enterFrameHandler);
        }

        /**
         * This Signal is dispatched on every frame.
         *
         * If you want to emulate Flex's callLater method you could do the following:
         * EnterFrame.run.addOnce(someMethod);
         */
        static public function get run():ISignal {
            if (_instance == null) _instance = new EnterFrame(new SingletonEnforcer());
            return _run;
        }

        private function enterFrameHandler():void {
            _run.dispatch();
        }
    }
}
class SingletonEnforcer {}