magazincheg

using System;
using System.Collections.Generic;
using System.Linq;

namespace PlayerShop
{
    class Program
    {
        static void Main(string[] args)
        {
            Seller seller = new Seller("Prodavan", 100);
            Player player = new Player("Vasiliy", 600);
            seller.GetItems();

            while (true)
            {
                Console.Clear();
                Console.WriteLine("Gold: " + player.Gold);
                Console.WriteLine("Seller's Gold :" + seller.Gold);
                Console.WriteLine("1 - seller items\n2 -player items\n3 - buy item ");
                int userInput = Convert.ToInt32(Console.ReadLine());
                switch (userInput)
                {
                    case 1:
                        seller.ShowItems();
                        break;
                    case 2:
                        player.ShowItems();
                        break;
                    case 3:
                        seller.ShowItems();
                        Console.WriteLine("Введите номер предмета, который вы хотите купить:");
                        int userChoice = Convert.ToInt32(Console.ReadLine());
                        var wantedItem = seller.PickItem(userChoice);
                        if (wantedItem.Price <= player.Gold)
                        {
                            player.BuyItem(wantedItem);
                            seller.SellItem(wantedItem);
                        }
                        else
                        {
                            Console.WriteLine("Not enough gold");
                        }
                        break;
                }
                Console.WriteLine("Нажмите любую клавишу...");
                Console.ReadKey();
            }
        }

        class Seller
        {
            public int Gold { get; private set; }
            public string Name { get; private set; }

            private List<Item> _itemList = new List<Item>();
            public Seller(string name, int gold)
            {
                Gold = gold;
                Name = name;
                List<Item> _itemList = new List<Item>();
            }

            public void ShowItems()
            {
                foreach (var item in _itemList)
                {
                    Console.WriteLine($"{item.Name} - {item.Price}");
                }
            }

            public void SellItem(Item item)
            {
                Gold += item.Price;
                _itemList.Remove(item);
            }

            public Item PickItem(int number)
            {
                return _itemList[number - 1];
            }

            public void GetItems()
            {
                _itemList.Add(new Item(150, "Axe"));
                _itemList.Add(new Item(250, "Sword"));
                _itemList.Add(new Item(60, "Healing potion"));
                _itemList.Add(new Item(40, "Mana potion"));
            }
        }

        class Player
        {
            public int Gold { get; private set; }
            public string Name { get; private set; }

            private List<Item> _itemList = new List<Item>();

            public Player(string name, int gold)
            {
                Name = name;
                Gold = gold;
                List<Item> _itemList = new List<Item>();
            }

            public void BuyItem(Item item)
            {
                Gold -= item.Price;
                _itemList.Add(item);
                Console.WriteLine("Вы купили предмет - " + item.Name);
            }
            public void ShowItems()
            {
                foreach (var item in _itemList)
                    Console.WriteLine(item.Name);
            }
        }

        class Item
        {
            public string Name { get; private set; }
            public int Price { get; private set; }

            public Item(int price, string name)
            {
                Name = name;
                Price = price;
            }
        }
    }
}