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tweening alternative

January 31st, 2005 Randy

Hello blog fans and happy new year. Recent news for the multitude of readers of this blog: I have joined the team at gskinner.com and I'm learning a lot! Flash all day every day. The guys are constantly feeding me with cool and better ways of doing things. Here is one such technique:

A previous blog mentioned the tween class, which itself has a certain amount of overhead. Here is a more direct technique to do the same thing.

PLAIN TEXT
Actionscript:
  1. myIntervalID:Number = setInterval(this, "tweenOutPin", 50, myMovieClip, oldX, newX, oldY, newY, getTimer(), duration);
  2.  
  3. function tweenOutPin(p_pin:MovieClip, p_oldX:Number, p_newX:Number, p_oldY:Number, p_newY:Number, p_startTime:Number, p_duration:Number):Void {
  4. var t:Number = getTimer()-p_startTime;
  5.    if (t <= p_duration) {
  6.       p_pin._x = linearTween(t, p_oldX, p_newX-p_oldX, p_duration);
  7.       p_pin._y = linearTween(t, p_oldY, p_newY-p_oldY, p_duration);
  8.    } else {
  9.       p_pin._x = p_newX;
  10.       p_pin._y = p_newY;
  11.       clearInterval(myIntervalID);
  12.   }
  13. }

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  1. Ryan Matsikas
    January 31st, 2005 at 10:38 | #1
    Reply | Quote

    You might want to mention that the linerTween Method that gets called is one of the many Penner Easing Equations... don't wanna confuse yer readers..

    Also, if you gonna post code on yer blog you should check out http://voisen.org/archives/2003/05/mtcodebeautifier.php its the awesome.

    peace out side.

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