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TweenMax Mousewheel

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I'm trying to set top and bottom limits on a scrolling / tweening movie clip and can't quite get it to work.


Here is my current code.  Any help would be appreciated.

var destY:Number = activity_mc.y;

function handleMouseWheel(e:MouseEvent):void {

    var _delta:int = e.delta > 0 ? 1 : -1;
    destY += _delta * 200;
    TweenMax.to(activity_mc, .2, {y:destY});

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Sorry, its difficult to trouble shoot partial code fragments like that.

For one I don't see where you are using addEventListener to register that function to respond to MouseEvent.MOUSE_WHEEL.


Also, I'd suggest trying to make it work without the tween, just try to find the proper y value first.


something like this should work


import com.greensock.*;

import flash.events.MouseEvent;

function handleMouseWheel(event:MouseEvent):void {

      var newY = mc.y + (event.delta * 3)
//keeps y value of mc between 0 and 300
 newY = constrain(newY, 0, 300);
 TweenLite.to(mc, 1, {y:newY}); 



function constrain(num:Number, min:Number = 0, max:Number = 1):Number
if (num < min) return min;
if (num > max) return max;
return num;

stage.addEventListener(MouseEvent.MOUSE_WHEEL, handleMouseWheel);
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Worked out perfectly .. thanks!

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