public PvZChooseSystem(Game game, PvZGrowButtonFactoryBank btnFB, UIControlManager uiMan, IPvZGameCurrency currency)
     : base(game)
 {
     this.buttonFB = btnFB;
     this.uiManager = uiMan;
     _currency = currency;
 }
 public PvZGrowSystem(Game game)
 {
     this.game = game;
     this.shadowFB = new PvZPlantShadowFactoryBank(this.game);
     this.buttonFB = new PvZGrowButtonFactoryBank(this.shadowFB);
 }