private BattleUIManager()
 {
     BattleMenus   = new Stack <BattleMenu>();
     SelectionMenu = new TargetSelectionMenu();
     battleHUD     = new BattleHUD();
 }
 public BattleUIManager()
 {
     InputMenus    = new Stack <InputMenu>();
     SelectionMenu = new TargetSelectionMenu(this);
     battleHUD     = new BattleHUD(null);
 }