/// <summary>
/// Updates the background music controller.
/// </summary>
/// <param name="elapsedTimeS">The elapsed time in seconds since the last update.</param>
public void Update(float elapsedTimeS)
{
if (this.currentSong.FinishedPlaying)
{
this.propagateSong();
}
if (this.currentFade != null)
{
this.currentFade.Update(elapsedTimeS);
this.localVolume = this.currentFade.CurrentVolume;
this.OnVolumeChanged(this.globalVolume);
if (this.currentFade.Finished)
{
this.currentFade = null;
if (this.fadeCallback != null)
{
this.fadeCallback();
this.fadeCallback = null;
}
}
}
}
/// <summary>
/// Fades out this background music controller.
/// </summary>
/// <param name="length">The length of this fade.</param>
/// <param name="callback">The method that should be called when the fade is finished.</param>
public void FadeOut(float length, Action callback)
{
this.currentFade = new FadeDefinition(length, this.localVolume, 0);
this.fadeCallback = callback;
}
