/// <summary>
/// Immediately pauses the current top screen, pushes a different
/// screen on top of it and resumes the new top screen.
/// </summary>
/// <param name="screen">Screen to add.</param>
/// <param name="gameTime">Time at which the screen was pushed.</param>
private void PushScreen( GameScreen screen, GameTime gameTime )
{
TopScreen?.Pause( gameTime );
screen.Initialize();
screen.ScreenManager = this;
mScreens.Push( screen );
screen.Resume( gameTime );
}
/// <summary>
/// Adds a screen to the top of the screen manager on the next call to update.
/// </summary>
/// <param name="screen">Screen to add.</param>
public void PushScreen( GameScreen screen )
{
if ( screen == null )
throw new ArgumentNullException( nameof( screen ) );
mPendingScreens.Add( screen );
}