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Roman Kovalev

How to update value in tween when reversed?

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This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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Hey, there! 
Is there a way to update the value inside tween when getting the animation reversed? For now I need some kind of fake preload animation, before modal window loads, so I'm using delay parameter with a variable value . But when I'm closing modal window (by clicking on a background layer), animation reversing but considering that delay. Is there a way to change that variable value on reverse?

See the Pen yzLqXG by NeedHate (@NeedHate) on CodePen

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Thanks for the demo. 

The short answer is no, there isn't an easy (practical) way to just remove the delay from a tween in a timeline when it is reversed. Yes, you could find the tween in the timeline, remove its delay and then shift the following tweens around, but then when you want to move forward again you would have to add the delay back in and move the tweens that follow. It can get messy.


Once you say "i want this animation to something different in reverse" you step beyond what reverse is supposed to do. You need a different animation.

My suggestion is to have separate functions for your open and close animations. When you call those functions you create the necessary timelines.

This allows you to have much more flexibility


Something like:

See the Pen jGEOVx?editors=0011 by GreenSock (@GreenSock) on CodePen






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Ok. Cool! Thanks for a suggestion. I appreciate that and will follow your advice.

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