Flash Actionscript 3.0 Animation Looping

Question

I am trying to create a side scrolling game. In it, I want the player to be able to shoot blow darts.

As it is right now, if the player holds the Spacebar, the player's (which is a MovieClip) shooting animation loops. I want the animation to play only once per Spacebar press.

Here is code that I use:

This method determines which key(s) are being pressed:

        // Process the pressed key(s)
    public function KeyPressed(event:KeyboardEvent):void {
        // The Left Key was pressed
        if (event.keyCode == Keyboard.LEFT) {
            leftKeyPressed = true;
        }

        // The Right Key was pressed
        if (event.keyCode == Keyboard.RIGHT) {
            rightKeyPressed = true;
        }

        // The Up Key was pressed
        if (event.keyCode == Keyboard.UP) {
            upKeyPressed = true;
        }

        // The Down Key was pressed
        if (event.keyCode == Keyboard.DOWN) {
            downKeyPressed = true;
        }           
        // The Space Key was pressed
        if (event.keyCode == Keyboard.SPACE) {
            spaceKeyPressed = true;
        }
    } // End of 'KeyPressed()' function

This method determines which key(s) have been released:

        public function KeyReleased(event:KeyboardEvent):void {
        // The Left Key was released
        if (event.keyCode == Keyboard.LEFT) {
            leftKeyPressed = false;
        }

        // The Right Key was released
        if (event.keyCode == Keyboard.RIGHT) {
            rightKeyPressed = false;
        }

        // The Up Key was released
        if (event.keyCode == Keyboard.UP) {
            upKeyPressed = false;
        }

        // The Down Key was released
        if (event.keyCode == Keyboard.DOWN) {
            downKeyPressed = false;
        }   

        // The Space Key was released
        if (event.keyCode == Keyboard.SPACE) {
            spaceKeyPressed = false;
        }
    } // End of 'KeyReleased()' function

This is a sample of code that plays one of the player's shooting animations:

if (onGround && !downKeyPressed && spaceKeyPressed) {
                    player.gotoAndStop(7);
}

How can I prevent the 7th player frame from continuously looping? I just want the animation to play once while the Spacebar is being pressed.

Thanks!

Thomas Blommaert Thomas Blommaert · Accepted Answer · 2011-11-05T22:40:06

Just add stop(); to the 7th frame of your movieclip.

But maybe you better use an enter frame event for such a game, here's an edited cut from a game I'm making:

    private var controls:Object = new Object();

    private function addListeners()
    {
        stage.addEventListener(KeyboardEvent.KEY_DOWN,controlKeyboard);
        stage.addEventListener(KeyboardEvent.KEY_UP,controlKeyboard);
        stage.addEventListener(Event.ENTER_FRAME,updateGame);
    }

    private function controlKeyboard(e:KeyboardEvent)
    {
        var keydown:Boolean = new Boolean();

        if (e.type == "keyDown")
        {
            keydown = true;
        }

        controls[e.keyCode] = keydown;
    }

    private function updateGame(e:Event)
    {
        if (controls[Keyboard.SPACE])
        {
            if (player.currentFrame == 1)
            {
                player.gotoAndPlay(2);
            }
        }

        if (player.currentFrame == 7)
        {
            player.gotoAndStop(1);
        }

    }

Flash Actionscript 3.0 Animation Looping

2 Answers