设计模式之模板方法模式

public abstract class Game {

   protected int PlayerCount;

   public abstract void InitializeGame();

   protected abstract void MakePlay(int player);

   protected abstract bool EndOfGame();

   protected abstract void PrintWinner();

   public void PlayOneGame(int playerCount) {
      this.PlayerCount = playerCount;

      this.InitializeGame();

      var j = 0;
      while (!this.EndOfGame()) {
         this.MakePlay(j);
         j = (j + 1) % this.PlayerCount;
      }
      this.PrintWinner();
   }

}

public class Monopoly : Game {
   
   public override void InitializeGame() {
      Console.WriteLine("Initialize players");
      Console.WriteLine("Initialize money");
   }

   protected override void MakePlay(int player) {
      Console.WriteLine("Process one turn of player");
   }

   protected override bool EndOfGame() {
      Console.WriteLine("Return true if game is over, according to Monopoly rules.");
      return true;
   }

   protected override void PrintWinner() {
      Console.WriteLine("Whow won ?");
   }

}

public class Chess : Game {
   
   public override void InitializeGame() {
      throw new NotImplementedException();
   }

   protected override void MakePlay(int player) {
      throw new NotImplementedException();
   }

   protected override bool EndOfGame() {
      throw new NotImplementedException();
   }

   protected override void PrintWinner() {
      throw new NotImplementedException();
   }

}

class Client {
   
   static void Main(string[] args) {
      Game monopolyGame = new Monopoly();
      monopolyGame.PlayOneGame(4);

      Console.ReadKey();
   }
}