Betwixt is a quick way to ease and tween between any generic types, and provides a robust fast API to allow you to do whatever you set out to do, in the easiest way possible.

You can get the latest repository here, or download precompiled library files from the releases tab

You can also get this package using Nuget!

For x86: PM > Install-Package betwixt

Please reference the documentation located in the /doc folder. Here is a very small overview, however:

General Use:

// Initialisation
Tweener<float> tweener = new Tweener<float>(0, 10, 2, Ease.Elastic.Out);
// Update
tweener.Update(deltaTime);
// Anywhere
float newValue = tweener.Value;

You can also use your own custom type, with it's own lerp function (or let generics handle it)

TimeSpan length = TimeSpan.FromSeconds(3);
Tweener<Vector2> tweener = new Tweener<Vector2>(startVector, endVector, length, Ease.Linear, Vector2.Lerp);

You can also specify your own ease function and make it into a set (or use the function directly)

IEase myEaseSet = Generic.CreateFromOut(myEaseOutFunction);
Tweener<float> tweener = new Tweener<float>(0, 10, 2, myEaseSet.InOut);

Betwixt is incredibly flexible, and as long as your ease function matches the correct signature, you can use anything you want!

If you had a custom graph curve which had a "float GetValueAtTime(float time)" function you could even use:

CustomGraphCurve myCustomGraphCurve = new CustomGraphCurve(graphPoints);

Tweener<float> tweener = new Tweener<float>(0, 10, 2, myCustomGraphCurve.GetValueAtTime);

Hopefully this inspires you to think of creative ways to use Betwixt!

Feel free to contact me at [[email protected]](mailto:[email protected]?subject=FFXIV Server Status Notifier) if you have any questions, or maybe if you want to toss me a few cents!