using System;

using System.Linq.Expressions;

using System.Runtime.CompilerServices;

using System.Runtime.InteropServices;

public class Program

{

     private static Random random = new Random();

    static void Main()

    {

        List<int> boxNumbers = new List<int> { 2, 3, 4, 5, 6, 7, 8, 9};

        int dice1 = 0;

        int dice2 = 0;

        int diceRoll = dice1 + dice2;

        int selectedNumber = 0;

        bool playable = true;

​

        Console.Clear();

        Console.WriteLine("Welcome to shut the box!\n");

        Console.WriteLine("Press Enter to roll dice.");

        Console.ReadKey();

            do

            {

                PrintBox(boxNumbers);  

                playable = false;

​

                if (diceRoll == 0)

                {

                    dice1 = RollD6(); 

                    dice2 = RollD6();

                    diceRoll = dice1 + dice2;

                }

                Console.WriteLine($"You rolled {dice1} and {dice2}");

                Console.WriteLine($"you need to remove {diceRoll} to contine");

​

                //check number can be removed

                for(int i = 0; i < boxNumbers.Count; i++) 

                {

                    int check1 = boxNumbers[i];

                    if (check1 == diceRoll) playable = true;

                    for (int j = 0; j < boxNumbers.Count; j++)

                    {

                        int check2 = boxNumbers[j] + boxNumbers[i];

                        if (check2 == diceRoll) playable = true;

                        for (int k = 0; k < boxNumbers.Count; k++)

                        {

                            int check3 = boxNumbers[k] + boxNumbers[j] + boxNumbers[i];

                            if (check3 == diceRoll) playable = true;

                        }

                    }

                }

​

                if (!playable) break;

                //check number can remove array items

                Console.WriteLine("please select a number to close");

                Console.Write("Number: ");

                while (playable)

                {

                    string? input = Console.ReadLine();

                    try

                    { 

                        int numberImput = Convert.ToInt32(input);

                        if (boxNumbers.Contains(numberImput)&& numberImput <= diceRoll)

                        {

                            selectedNumber = numberImput;

                            break;

                        }

                        else throw new Exception();

​

                    }

                    catch{ Console.Write("Please enter a valid number: "); }

​

                }

                //remove Box number 

                boxNumbers.Remove(selectedNumber);

                diceRoll = diceRoll - selectedNumber;

                if (boxNumbers.Count == 0 )

                {

                    Console.WriteLine("Congratulations you win!");

                    break;

                }

                Console.Clear();

​

            } while (playable);

​

​

        Console.WriteLine("Game Over");

        // end game if numbers are not valid 

    }

        public static int RollD6()

        {

            return random.Next(1,7);

        }

        static void PrintBox(List<int> boxNumbers)

        {

            int [] boxFlaps = { 2, 3, 4, 5, 6, 7, 8, 9};

            foreach ( int flap in boxFlaps)

            {

                if (boxNumbers.Contains((int)flap))

                Console.Write($"| {flap} |");

​

                else

                Console.Write("     ");

            }

                Console.WriteLine();

        }

}