public override void Update(GameTime gameTime)
{
// Clear out the screensToUpdate list to copy the screens list
// This allows us to add or remove screens without complaining
screensToUpdate.Clear();
// If there are ever 0 screens on the stack, then close the game
if (screens.Count == 0)
{
this.Game.Exit();
}
foreach (GameScreen screen in screens)
{
screensToUpdate.Add(screen);
}
bool screenIsCovered = false;
bool firstScreen = true;
if (!Game.IsActive)
{
// If the game isn't the active window, then pause everything.
}
else
{
while (screensToUpdate.Count > 0)
{
GameScreen screen = screensToUpdate[screensToUpdate.Count - 1];
screensToUpdate.RemoveAt(screensToUpdate.Count - 1);
// Update the screen
screen.Update(gameTime, screenIsCovered);
if (screen.IsActive)
{
if (firstScreen)
{
screen.HandleInput();
firstScreen = false;
}
if (!screen.IsPopup)
{
screenIsCovered = true;
}
}
}
}
}
