using System;

using System.Collections.Generic;

using System.Text;

namespace AdapterExample

{

    class Program

    {

        static void Main(string[] args)

        {

            Lobby lobby = new Lobby();

            lobby.CreateRoom("HalfPaper");

            lobby.StartGame();

        }

    }

    interface IGame

    {

        void StartScene(string sceneName);

        void EnterPlayer(string playerName);

    }

    class Lobby

    {

        private string sceneName;

        public void CreateRoom(string sceneName)

        {

            this.sceneName = sceneName;

        }

        public void StartGame()

        {

            IGame game = new GameAdapter();

            game.StartScene(sceneName);

            game.EnterPlayer("yzhu");

        }

    }

    class Game

    {

        public void LoadScene(string sceneName, string token)

        {

            if (token == "Abcd1234")

                Console.WriteLine("Loading " + sceneName + "...");

            else

                Console.WriteLine("Invalid token!");

        }

        public void EnterPlayer(int playerID)

        {

            Console.WriteLine("player:" + playerID + " entered");

        }

    }

    class GameAdapter : IGame

    {

        private Game game = new Game();

        public void StartScene(string sceneName)

        {

            game.LoadScene(sceneName, "Abcd1234");

        }

        public void EnterPlayer(string playerName)

        {

            game.EnterPlayer(GetPlayerIDByPlayerName(playerName));

        }

        private int GetPlayerIDByPlayerName(string playerName)

        {

            return 12345;

        }

    }

}