public IDisposable Subscribe(IObserver <float> observer)
{
var t = 0f;
var disposable = new SingleAssignmentDisposable();
disposable.Disposable = Observable.EveryUpdate().Subscribe(_ =>
{
t += Time.deltaTime / _duration;
bool isCompleted = false;
if (t >= 0.99999f)
{
t = 1f;
isCompleted = true;
}
try
{
observer.OnNext(_easer?.Ease(t) ?? t);
if (isCompleted)
{
observer.OnCompleted();
}
}
finally
{
if (isCompleted)
{
disposable.Dispose();
}
}
});
return(disposable);
}
/// <summary> /// Makes this easer animate backwards within the same time span /// </summary> public static IEaser Reversed(this IEaser This) => new Easer(t => This.Ease(1 - t));
/// <summary> /// Eases this value using given easer /// </summary> public static float Ease(this float This, IEaser ease) => ease.Ease(This);
/// <summary>
/// Makes this easer animate forwards then backwards within the same time span
/// </summary>
public static IEaser PingPong(this IEaser This) =>
new Easer(t => This.Ease(
t <= 0.5f
? t * 2
: 1 - (t - 0.5f) * 2));