using System;

using System.Linq;

​

public class DiceRoller

{

    //make the valid number testing part of a seperate function

​

    public static void Main()

    {

​

        bool acceptableDice = false;

        string[] dice = new string[] { };

        while (acceptableDice == false)

        {

            Console.WriteLine("Enter your dice rolls: ");

            dice = Console.ReadLine().Split(' ');

            acceptableDice = validDiceTest(dice);

        }

        RollTheDice(dice);

    }

​

    private static bool validDiceTest(string[] dice)

    {

        bool ret = true;

        string[] validDice = { "4", "6", "8", "10", "12", "20", "%", "100" };

        foreach(string die in dice)

        {

            string[] thisDie = die.ToUpper().Split('D');

            if (thisDie.Length != 2 || !validDice.Contains(thisDie[1]))

            {

                ErrorMessage(die);

                ret = false;

            }

            try {

                Convert.ToInt16(thisDie[0]); //catch non-numeric

            }

            catch{

                ErrorMessage(die);

                ret = false;

            }

        }

        return ret;

    }

    private static void RollTheDice(string[] dice)

    {

        var rand = new Random();

        foreach (string die in dice)

        {

            string[] thisDie = die.ToUpper().Split('D');

            //handle % by turning it into 100

            if (thisDie[1] == "%")

            {

                thisDie[1] = "100";

            }

            Console.Write(die + " - ");

            for (int cl = 0; cl < Convert.ToInt16(thisDie[0]); cl++)

            {

                Console.Write("{0:N0}", rand.Next(1, Convert.ToInt16(thisDie[1]) + 1) + " ");

            }

            Console.Write("\n");

        }

    }

    private static void ErrorMessage(string die)

    {

        Console.WriteLine(die + " is not a valid die.");

​

    }

}

​