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redordead

Ease out looping tween on the fly

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Hi

 

I'm new to Tweenlite, have a query that may be very simple.

 

I have a tween thats repeating an object being rotated 360degrees, I want to update the tween so it eases out to a new degree requirement e.g.

 

from...

thisTween = new TweenMax(rec, 4, {rotation:"360",  ease:Linear.easeNone, repeat:-1 });

 

to 

{rotation:"25",  ease:Linear.easeNone, repeat:0 });

 

so it basically eases the objects rotation, stopping at 25 degrees.  Spent the last hour trying to solve this, nothing so far.  Any help greatly appreciated.

 

Many thanks.

            
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This is EXACTLY the kind of thing that ThrowPropsPlugin is for - it allows you to feed in a velocity for a property (in this case "rotation") and then it will figure out how far that value should go based on a bunch of factors (like the duration of the tween, the ease, and any max/min values you provide) and then do the animation for you so that it looks seamless. 

 

More info is at http://www.greensock.com/throwprops/

 

In your case, the velocity would be 90 because you're going 360 over the course of 4 seconds (360 / 4 = 90 units per second). So your tween could look like: 

 

TweenLite.to(rec, 2, {throwProps:{rotation:90}});

And you can get more complex if you want to feed in resistance values or min/max values, etc. Let me know if you need any help with those. 

 

Note: ThrowPropsPlugin is a membership benefit of Club GreenSock ("Shockingly Green" and "Business Green" levels). Learn more at http://www.greensock.com/club/

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