public void AddItem(string item)
        {
            arrayItems[Array.IndexOf(arrayItems, null)] = item;
            //for (int i = 0; i < arrayItems.Length; i++)
            //{
            //    if (arrayItems[i] == null)
            //    {
            //        arrayItems[i] = item;
            //        break;
            //    }
            //}
            Console.WriteLine("{0} has been added to your inventory", item);
        }