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Advance Movie Clip While Draging (AS3)

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  • Advance Movie Clip While Draging (AS3)

    Ok, so I've been trying to learn AS3 and I've got a pretty good handle on being able to "read" it, but I'm having a hard time trying to wrap my head around "writing" it.

    What I am trying to do is clicking on a movie clip and dragging it, but as I drag it I want it to advance frame by frame (for example, I drag the movie clip one pixel from the original place and the movie clip would advance one frame)

    So, right now, I just have a movie clip on my stage and here is the actionscript for it...

    Code:
    grow_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragGrow);
    
    function dragGrow(event:MouseEvent):void
    {
        grow_mc.nextFrame();
        grow_mc.startDrag();
        grow_mc.removeEventListener(MouseEvent.MOUSE_DOWN, dragGrow);
        grow_mc.addEventListener(MouseEvent.MOUSE_UP, dropGrow);
    }
    
    function dropGrow(event:MouseEvent):void
    {
        grow_mc.stopDrag();
        grow_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragGrow);
        grow_mc.removeEventListener(MouseEvent.MOUSE_UP, dropGrow);
    }
    Of course, it only advances one frame on the MOUSE_DOWN, so to get it to advance again I would need to "drop" it and then click on it to start dragging.

    Also, I wonder, should I just make a mathematical function since the tween is just scaling the object?

    Just kind of stuck.. any insight would be much appreciated. Thanks in advance.
    [insert clever signature here]

  • #2
    Code:
    grow_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragGrow);
    
    function dragGrow(event:MouseEvent):void
    {
        grow_mc.startDrag();
        grow_mc.removeEventListener(MouseEvent.MOUSE_DOWN, dragGrow);
        grow_mc.addEventListener(MouseEvent.MOUSE_UP, dropGrow);
        
        
        grow_mc.addEventListener(MouseEvent.MOUSE_MOVE, advanceGrow);
        function advanceGrow(event:MouseEvent):void
        {
            grow_mc.nextFrame();
        }
    }
    
    function dropGrow(event:MouseEvent):void
    {
        grow_mc.stopDrag();
        grow_mc.addEventListener(MouseEvent.MOUSE_DOWN, dragGrow);
        grow_mc.removeEventListener(MouseEvent.MOUSE_UP, dropGrow);
    }
    Ok, so made a couple of changes... and I got it to advance while dragging... I'm going to keep tweaking with it though because it would be kind of cool for it to be relative to a certain point, like if I could make it appear as if the user was "dragging" the object closer to them... so when you drag it to the right it grows, but when you drag it to the left it shrinks.

    Sorry if this thread is annoying, but I figure in the least it could potentially spark a couple of ideas or answer a future question.
    [insert clever signature here]

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