public async Task Play(Animation ani, float duration)
{
this.duration = duration;
elapsedTime = TimeSpan.Zero;
this.triggerKeys = null;
this.animation = ani;
await this.semaphore.WaitAsync();
this.animation = null;
}
public async Task<Keys> PlayUntil(Animation ani, Keys[] keys)
{
this.duration = 0;
this.triggerKeys = keys;
this.onRelease = true;
this.animation = ani;
await this.semaphore.WaitAsync();
this.animation = null;
return currentKey;
}