/// <summary>
/// Fade in with a given color for a given duration, and execute a callback when complete.
/// </summary>
/// <param name="c">The color.</param>
/// <param name="duration">The duration in seconds.</param>
/// <param name="callback">The callback to run when complete.</param>
public static void FadeIn(Color c, float duration, FadeCompleteHandler callback)
{
AddHandler(callback);
FadeIn(c, duration);
}
private static void AddHandler(FadeCompleteHandler h)
{
_onFadeComplete += h;
_onFadeComplete += () => { _onFadeComplete -= h; }; // remove it after first execution
}
