using System;

using System.Collections.Generic;

using System.ComponentModel.Design;

​

public class RockPaperScissors {

    public static void Main(string[] args) {

        List<string> gameOptions = new List<string>();

​

        gameOptions.Add("Rock");

        gameOptions.Add("Paper");

        gameOptions.Add("Scissors");

​

        int playerWins = 0;

        int computerWins = 0;

​

        Console.WriteLine("Please select 1.Rock, 2.Paper, 3.Scissors, 4. Exit");

        string playerChoice = Convert.ToString(Console.ReadLine());

​

        Random r = new Random();

        int index = r.Next(gameOptions.Count);

        string computerChoice = gameOptions[index];

​

        while (playerChoice != "4") {

​

            if (playerChoice == "1") {

                if (computerChoice == "Rock")

                {

                    Console.WriteLine("Draw");

                }

                else if (computerChoice == "Paper")

                {

                    Console.WriteLine("Player loses");

                    computerWins++;

                }

                else if (computerChoice == "Scissors")

                {

                    Console.WriteLine("Player wins");

                    playerWins++;

                }

                Console.Write("Player wins: " + playerWins + " Computer wins: " + computerWins + "\n");

                Console.WriteLine("Please select 1.Rock, 2.Paper, 3.Scissors, 4. Exit\n");

                string newPlayerChoice = Convert.ToString(Console.ReadLine());

                playerChoice = newPlayerChoice;

​

                index = r.Next(gameOptions.Count);

                computerChoice = gameOptions[index];

            }

            else if (playerChoice == "2") {

                if (computerChoice == "Rock")

                {

                    Console.WriteLine("Player wins");

                    playerWins++;

                }

                else if (computerChoice == "Paper")

                {

                    Console.WriteLine("Draw");

                }

                else if (computerChoice == "Scissors")

                {

                    Console.WriteLine("Player loses");

                    computerWins++;

                }

                Console.Write("Player wins: " + playerWins + " Computer wins: " + computerWins + "\n");

                Console.WriteLine("Please select 1.Rock, 2.Paper, 3.Scissors, 4. Exit\n");

                string newPlayerChoice = Convert.ToString(Console.ReadLine());

                playerChoice = newPlayerChoice;

​

                index = r.Next(gameOptions.Count);

                computerChoice = gameOptions[index];

            }

            else if (playerChoice == "3") {

                if (computerChoice == "Rock")

                {

                    Console.WriteLine("Player loses");

                    computerWins++;

                }

                else if (computerChoice == "Paper")

                {

                    Console.WriteLine("Player wins");

                    playerWins++;

                }

                else if (computerChoice == "Scissors")

                {

                    Console.WriteLine("Draw");

                }

                Console.Write("Player wins: " + playerWins + " Computer wins: " + computerWins + "\n");

                Console.WriteLine("Please select 1.Rock, 2.Paper, 3.Scissors, 4. Exit\n");

                string newPlayerChoice = Convert.ToString(Console.ReadLine());

                playerChoice = newPlayerChoice;

​

                index = r.Next(gameOptions.Count);

                computerChoice = gameOptions[index];

            }

            else if (playerChoice == "4") {

                System.Environment.Exit(1);

            }

        }

    }

}