public virtual void Update(GameTime gameTime, bool otherScreenHasFocus,
bool coveredByOtherScreen)
{
this.otherScreenHasFocus = otherScreenHasFocus;
if (isExiting)
{
// If the screen is going away to die, it should transition off.
screenState = ScreenState.TransitionOff;
if (!UpdateTransition(gameTime, transitionOffTime, 1))
{
// When the transition finishes, remove the screen.
ScreenManager.RemoveScreen(this);
}
}
else if (coveredByOtherScreen)
{
// If the screen is covered by another, it should transition off.
if (UpdateTransition(gameTime, transitionOffTime, 1))
{
// Still busy transitioning.
screenState = ScreenState.TransitionOff;
}
else
{
// Transition finished!
screenState = ScreenState.Hidden;
}
}
else
{
// Otherwise the screen should transition on and become active.
if (UpdateTransition(gameTime, transitionOnTime, -1))
{
// Still busy transitioning.
screenState = ScreenState.TransitionOn;
}
else
{
// Transition finished!
screenState = ScreenState.Active;
}
}
}