public void RemoveGoods(Goods goods)
 {
     if (!goods.RequiresCooling)
     {
         CurrentGoods.Remove(goods.ID);
         GoodsAmount -= goods.Amount;
     }
     else
     {
         CurrentCoolGoods.Remove(goods.ID);
         CoolGoodsAmount -= goods.Amount;
     }
 }
 public void AddGoods(Goods goods)
 {
     if (!goods.RequiresCooling)
     {
         CurrentGoods.Add(goods.ID, goods);
         GoodsAmount += goods.Amount;
     }
     else
     {
         CurrentCoolGoods.Add(goods.ID, goods);
         CoolGoodsAmount += goods.Amount;
     }
 }