public void TransitionTo <T>() where T : BaseScreen
{
var scr = GetOrCreateScreen <T>();
nextScreen = scr;
if (!nextScreen.IsReady)
{
nextScreen.LoadContent();
}
// Switch to loading screen if it exists
if (loadingScreen != null)
{
if (curScreen != null)
{
curScreen.OnNavigatedFrom();
}
curScreen = loadingScreen;
curScreen.OnNavigatedTo();
}
}
public override void Update(GameTime gameTime)
{
// See if we need to change screens
if (nextScreen != null && nextScreen.IsReady)
{
if (curScreen != null)
{
curScreen.OnNavigatedFrom();
}
curScreen = nextScreen;
nextScreen = null;
curScreen.OnNavigatedTo();
}
if (curScreen != null)
{
curScreen.Update(gameTime.ElapsedGameTime.TotalSeconds);
}
base.Update(gameTime);
}