/// <summary> Hides the levels. </summary>
///
/// <param name="level"> The level. </param>
private static void HideLevels(int level)
{
var levels = LevelsManager.GetVisibleLevelNumbers().ToList();
foreach (var l in levels.Where(x => x != level))
{
LevelsManager.SetLevelVisible(l, false);
}
}