/// <summary>
/// Advance the currently playing clips, transitions, etc, and return any metachannel events that
/// have occurred during the elapsed time.
/// </summary>
/// <param name="gameTime"></param>
/// <returns></returns>
public void Update(GameTime gameTime)
{
ActiveControlEvents = AnimationControlEvents.None;
if (ActiveTransition == null ||
(transitionTime == TimeSpan.Zero && !CurrentState.CanTransitionOut()))
{
// We're either completely in a given state, or we can't begin the transition just yet.
CurrentState.AdvanceTime(gameTime.ElapsedGameTime);
ActiveControlEvents |= CurrentState.GetActiveControlEvents();
}
else
{
// A transition is in progress.
if (ActiveTransition.Type != TransitionType.Frozen)
{
CurrentState.AdvanceTime(gameTime.ElapsedGameTime);
ActiveControlEvents |= CurrentState.GetActiveControlEvents();
}
nextState.AdvanceTime(gameTime.ElapsedGameTime);
ActiveControlEvents |= nextState.GetActiveControlEvents();
transitionTime += gameTime.ElapsedGameTime;
// Has the transition completed?
if (transitionTime.TotalSeconds >= ActiveTransition.DurationInSeconds)
{
CurrentState = nextState;
blendFromCancelledTransitionPose = false;
if (nextState != desiredState)
{
nextState = desiredState;
}
else
{
nextState = null;
}
UpdateTransition();
}
}
}