Timer() gotoAndPlay in class problem

programming flash
1

Hey everyone!

I’m making a memory game and it’s all been going well until I wanted to fix a problem of mismatch card flip. I got some help from lyndas Essentials where they do a memory game but i got stuck with an issue that they don’t solve there. When you get a mismatch in the game the last clicked card starts as if flipped and flips on its front. It might be confusing to understand so here’s a link to the app with the problem… http://blulinedesign.com/memory/

I tried to fix the problem by putting a timer in the checkCards function and close the cards when after a second but i keep getting an error …

ReferenceError: Error #1069: Property gotoAndPlay not found on flash.display.Stage and there is no default value.
at MethodInfo-18()
at MethodInfo-17()
at MethodInfo-16()
at flash.utils::Timer/flash.utils:Timer::_timerDispatch()
at flash.utils::Timer/flash.utils:Timer::tick()

The part of the code that matters:

private function checkCards(event:MouseEvent):void {
            event.currentTarget.removeEventListener(MouseEvent.CLICK, checkCards);

            if (_firstCard == undefined) {
                _firstCard = event.currentTarget;
            } else if (String(_firstCard._type) == String(event.currentTarget._type)) {
                trace("match!");
                _firstCard = undefined;
                _currentMatches ++;
                if (_currentMatches >= _totalMatches) {
                    trace("YOU WIN!!!!!!");
                }
            } else {



                trace("wrong!");
                event.currentTarget.gotoAndPlay(1);

                
                
                var T:Timer = new Timer(1000,1);
                T.addEventListener(TimerEvent.TIMER, onTime);

                T.start();
                function onTime(evt:TimerEvent):void {

                    count++;
                    onCount();
                }
                
                trace(T.currentCount);
                
                function onCount():void {
                    if (count == 1) {

                        onFlip();

                    }
                }
                
                function onFlip():void {

                event.currentTarget.gotoAndPlay("flipBack");
                _firstCard.gotoAndPlay("flipBack");
                }


                _firstCard.addEventListener(MouseEvent.CLICK, checkCards);
                event.currentTarget.addEventListener(MouseEvent.CLICK, checkCards);
                _firstCard = undefined;
            }
        }

I tried a lot of stuff so the code is not optimized i know, but nothing worked for me.

Thank you very much for any answers or for pointing me in the direction that will solve my problem, realy appreciate it.