Add a way to apply startValue immediately

[yasirkula]

When I call Tween.Position(transform, startValue, endValue, duration), the object teleports to startValue with a frame delay. This is noticeable on UI objects. I have to resort to this solution:

transform.position = startValue;
Tween.Position(transform, endValue, duration);

I prefer one-liner solutions. Could you maybe add a function like StartImmediately that can be used like this:

// StartImmediately returns the Tween back so that it can be assigned to a Tween variable if desired
Tween tween = Tween.Position(transform, startValue, endValue, duration).StartImmediately();

[KyryloKuzyk]

@yasirkula Hmm, PrimeTween already applies the startValue automatically in its LateUpdate if you create animations during the regular Update.

Is there a chance you start your UI animation from your own LateUpdate? This can explain the one-frame delay.
You can also create a small extension method in case you need to apply the start value immediately after creating the animation after PrimeTween's LateUpdate: https://discussions.unity.com/t/primetween-high-performance-animations-and-sequences/926420/300

[yasirkula]

UI system also refreshes in LateUpdate. PrimeTween's LateUpdate may be running after UI system.

In the SetAtStart extension, calling only tween.progressTotal = 0f seems to work (I'm calling this extension immediately after creating the Tween). Do you think I'll encounter any issues if I skip tween.isPaused = true or tween.progressTotal = 1f?

[KyryloKuzyk]

@yasirkula I see. If you also update your UI in LateUpdate, then PrimeTween can't apply start values automatically.

calling only tween.progressTotal = 0f seems to work

Good catch! The code in the link was written for an old PrimeTween version. But in newer versions, setting only progressTotal is sufficient and will not cause any issues.