using System;

public class Program

{

    static string PlayerName1;

    static string PlayerName2;

    static int Player1PointsScored;

    static int Player2PointsScored;

​

    static bool IsAdvantagePlay;

​

    static string[] ScoreDisplay = new[] { "Love", "15", "30", "40", "Game" };

    public static void Main()

    {

        GetPlayerNames();

        SetScoresToZero();

        while(GameIsOver() == false)

        {

            GetNextScore();

            PrintCurrentScores();

        }

    }

    public static bool GameIsOver()

    {

        if (IsAdvantagePlay)

        {

            int player1ScoreDifference = Player1PointsScored - Player2PointsScored;

            int player2ScoreDifference = Player2PointsScored - Player1PointsScored;

​

            return player1ScoreDifference == 2 || player2ScoreDifference == 2;

        }

​

        return Player1PointsScored == 4 || Player2PointsScored == 4;

    }

    public static void GetNextScore()

    {

        Console.Write("Who has scored? ");

        string lastScorer = Console.ReadLine().ToLower();

        if (lastScorer == PlayerName1.ToLower())

        {

            Player1PointsScored++;

        }

​

        if (lastScorer == PlayerName2.ToLower())

        {

            Player2PointsScored++;

        }

​

        if (IsAdvantagePlay == false)

        {

            IsAdvantagePlay = Player1PointsScored == 3 && Player2PointsScored == 3;

        }

    }

​

    public static void SetScoresToZero()

    {

        Player1PointsScored = 0;

        Player2PointsScored = 0;

    }

​

    public static void PrintAdvantagePlay(int scoreDifference, string advantagePlayer)

    {

        if (scoreDifference == 1)

        {

            Console.WriteLine("Advantage {0}", advantagePlayer);

        }

        else

        {

            Console.WriteLine("{0} wins!", advantagePlayer);

        }

    }       

    public static void PrintCurrentScores()

    {

        if (IsAdvantagePlay)

        {

            Console.WriteLine("Advantage play, mother-fluffers!");

            if (Player1PointsScored == Player2PointsScored)

            {

                Console.WriteLine("We're in deuce, bi-atches!");

            }

            else if (Player1PointsScored > Player2PointsScored)

            {

                int scoreDifference = Player1PointsScored - Player2PointsScored;

                PrintAdvantagePlay(scoreDifference, PlayerName1);

            }

            else if (Player2PointsScored > Player1PointsScored)

            {

                int scoreDifference = Player2PointsScored - Player1PointsScored;

                PrintAdvantagePlay(scoreDifference, PlayerName2);

            }

        }           

        else

        {

            Console.WriteLine("{0}'s score: {1}", PlayerName1, ScoreDisplay[Player1PointsScored]);

            Console.WriteLine("{0}'s score: {1}", PlayerName2, ScoreDisplay[Player2PointsScored]);

        }

    }

    public static void GetPlayerNames()

    {

        Console.WriteLine("Player name 1:");

        PlayerName1 = Console.ReadLine();

        Console.WriteLine("Player name 2:");

        PlayerName2 = Console.ReadLine();

    }

}