Memory game random function

Question

Hello,
I made a memory game with a tutorial. My knowledge of AS3 is not that good so I have to following question.
There is a function like Math.Random to random generate number and put them on stage. I made a memory game and the cards are on the same place every time I play the "movie".
I want them to shuffle every time I restart the game. How can I write a good random function in AS3?
Thank you.
Joep van Dongen

Answer 1

So you still cant open my files?
I can post code:
Fla file = Memory.fla
DocumentClass = MemoryGame
This is MemoryGame.as :
package
    import flash.display.MovieClip;
    import flash.events.MouseEvent;
    import Card;
    import Computer;
    import Muis;
    import Radio;
    import Iphone;
    import Beamer;
    import Platenspeler;
    public class MemoryGame extends MovieClip
        private var _card:Card;
        private var _computer:Computer;
        private var _muis:Muis;
        private var _radio:Radio;
        private var _iphone:Iphone;
        private var _beamer:Beamer;
        private var _platenspeler:Platenspeler;
        private var _cardX:Number;
        private var _cardY:Number;
        private var _firstCard:*;
        private var _totalMatches:Number;
        private var _currentMatches:Number;
        public function MemoryGame()
            _totalMatches = 6;
            _currentMatches = 0;
            createCards();
        private function createCards():void
            _cardX = 45;
            _cardY = 31;
            for(var i:Number = 0; i < 2; i++)
            _card = new Card();
            addChild(_card);
            _computer = new Computer();
            _card.setType(_computer);
            _card.x = _cardX;
            _card.y = _cardY;
            _cardX += _card.width + 50;
            _card.addEventListener(MouseEvent.CLICK, checkCards);
            for(var j:Number = 0; j < 2; j++)
            _card = new Card();
            addChild(_card);
            _muis = new Muis();
            _card.setType(_muis);
            _card.x = _cardX;
            _card.y = _cardY;
            _cardX += _card.width + 50;
            _card.addEventListener(MouseEvent.CLICK, checkCards);
            _cardX = 45;
            _cardY += _card.height + 50;
            for(var k:Number = 0; k < 2; k++)
            _card = new Card();
            addChild(_card);
            _radio = new Radio();
            _card.setType(_radio);
            _card.x = _cardX;
            _card.y = _cardY;
            _cardX += _card.width + 50;
            _card.addEventListener(MouseEvent.CLICK, checkCards);
            for(var l:Number = 0; l < 2; l++)
            _card = new Card();
            addChild(_card);
            _iphone = new Iphone();
            _card.setType(_iphone);
            _card.x = _cardX;
            _card.y = _cardY;
            _cardX += _card.width + 50;
            _card.addEventListener(MouseEvent.CLICK, checkCards);
            _cardX = 45;
            _cardY += _card.height + 50;
            for(var m:Number = 0; m < 2; m++)
                _card = new Card();
                addChild(_card);
                _beamer = new Beamer();
                _card.setType(_beamer);
                _card.x = _cardX;
                _card.y = _cardY;
                _cardX += _card.width + 50;
                _card.addEventListener(MouseEvent.CLICK, checkCards);
            for(var n:Number = 0; n < 2; n++)
                _card = new Card();
                addChild(_card);
                _platenspeler = new Platenspeler();
                _card.setType(_platenspeler);
                _card.x = _cardX;
                _card.y = _cardY;
                _cardX += _card.width + 50;
                _card.addEventListener(MouseEvent.CLICK, checkCards);
        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))
                _firstCard = undefined;
                _currentMatches ++;
                if(_currentMatches >= _totalMatches)
            else
                _firstCard.gotoAndPlay("flipBack");
                event.currentTarget.gotoAndPlay("flipBack");
                _firstCard.addEventListener(MouseEvent.CLICK, checkCards);
                event.currentTarget.addEventListener(MouseEvent.CLICK, checkCards);
                _firstCard = undefined;
This is the Card.as:
package
    import flash.display.MovieClip;
    import flash.events.MouseEvent;
    public class Card extends MovieClip
        public var _type:*;
        public function Card()
            this.buttonMode = true;
            this.addEventListener(MouseEvent.CLICK, onClick);
        private function onClick(event:MouseEvent):void
            if(this.currentFrame == 1)
            this.play();
        public function setType(type:*):void
            _type = type;
            loader_mc.addChild(_type);
This is the how its put on screen:
So you can see its quiet easy to do this memory game ;-)
I'm really desperate right now because I was really happy how far I got with this game:-)
But now I know my AS3 isnt that good at all.