//update...
public UpdateFrequency Update(UpdateState state)
{
//when pressing A, create a new avatar description
if (state.PlayerInput[PlayerIndex.One].InputState.Buttons.A.OnPressed)
{
this.avatar.AvatarDescription = Microsoft.Xna.Framework.GamerServices.AvatarDescription.CreateRandom();
}
//if pressing B, play the cheer animation
if (state.PlayerInput[PlayerIndex.One].InputState.Buttons.B.OnPressed)
{
//start or stop the cheer animation (which is a built in animation in XNA)
//use a fadein / fadeout
if (!cheerAnimation.AnimationFinished)
{
cheerAnimation.StopAnimation(0.5f);
}
else
{
cheerAnimation = animationController.PlayPresetAnimation(AvatarAnimationPreset.Celebrate, true, 0.5f, 0.5f);
}
}
//when the cheer animation is playing, fade the walking animation out,
//do this based on the opposite weighitng of the cheer animation (taking fading into account)
this.walkAnimation.Weighting = 1 - this.cheerAnimation.GetFadeScaledWeighting(state);
return(UpdateFrequency.FullUpdate60hz);
}