/// <summary>
/// Updates the state of the updateable.
/// </summary>
/// <param name="elapsedTime">Time elapsed since the last update.</param>
public void Update(TimeSpan elapsedTime)
{
mScreen.ValidateProperties();
mScreen.ValidateSize();
mScreen.ValidateLayout();
mScreen.UpdateMatrices(Matrix.Identity);
UpdateNode(elapsedTime, mScreen);
}
