/*protected override void Starting()
* {
* base.Starting();
* Console.WriteLine("{0} Starting", GetType().Name);
* }
*
* protected override void Completing()
* {
* base.Completing();
* Console.WriteLine("{0} Completing", GetType().Name);
* }*/
#endif
#endregion
#region Game Loop
#endregion
#region Animations
public Task FloatAnimation(int duration, float startValue, float endValue, Action <float> valueStep, TweeningFunction easingFunction = null, CancellationToken cancellationToken = default(CancellationToken))
{
if (duration <= 0)
{
throw new ArgumentOutOfRangeException("duration", "Duration must be greater than zero");
}
if (valueStep == null)
{
throw new ArgumentNullException("valueStep");
}
AnimationInfo info = new AnimationInfo
{
Completion = new TaskCompletionSource <bool>(),
Cancellation = cancellationToken,
CurrentDuration = 0,
Duration = duration,
ValueStep = valueStep,
StartValue = startValue,
EndValue = endValue,
EasingFunction = easingFunction,
};
if (cancellationToken != CancellationToken.None)
{
info.Cancellation.Register(() => info.Completion.TrySetCanceled());
}
if (_animations.Count == 0)
{
DrawContext.BeforeLoop += UpdateAnimations;
}
_animations.Add(info);
info.NotifyValue();
return(info.Completion.Task);
}
