GildedRose-Refactoring-Kata/Tennis/csharp/TennisGame3.cs

using System;

namespace Tennis
{
  public class TennisGame3 : TennisGame
  {
    private int p2;
    private int p1;
    private string p1N;
    private string p2N;

    public TennisGame3 (string player1Name, string player2Name)
    {
      this.p1N = player1Name;
      this.p2N = player2Name;
    }

    public string GetScore() {
      string s;
      if (p1 < 4 && p2 < 4) {
        string[] p = new String[]{"Love", "Fifteen", "Thirty", "Forty"}; 
        s = p[p1];
        return (p1 == p2) ? s + "-All" : s + "-" + p[p2];
      } else {
        if (p1 == p2)
          return "Deuce";
        s = p1 > p2 ? p1N : p2N;
        return ((p1-p2)*(p1-p2) == 1) ? "Advantage " + s : "Win for " + s;
      }
    }
    
    public void WonPoint(string playerName) {
      if (playerName == "player1")
        this.p1 += 1;
      else
        this.p2 += 1;
    }

  }
}