using System;

public class Program

{

    public static void showPosibleDirection(int row, int col, int boatLen, String[]direction)

    {

        int i;

        i = 0;

        if (row >= (boatLen - 1))

        {

            Console.WriteLine("\n- Top");

            direction[i++] = "Top";

        }

        if (row <= (10 - 5))

        {

            Console.WriteLine("\n- Bottom");

            direction[i++] = "Bottom";

        }

        if (col >= (boatLen - 1))

        {

            Console.WriteLine("\n- Left");

            direction[i++] = "Left";

        }

        if (col <= (10 - 5))

        {

            Console.WriteLine("\n- Right");

            direction[i++] = "Right";

        }

    }

    public static bool checkDirectionValidity(String[]allOptions, String directionChose)

    {

        foreach (String elem in allOptions)

        {

            if (string.Compare(elem, directionChose) == 0)

                return (true);

        }

                return (false);

    }

    public static bool checkValidityPlacement(int row, int col, int boatLen, String Direction, int[,]Table)

    {

        int lockX, lockY, checkValiditySpaceX, checkValiditySpaceY, moveX;

        if (row + 1 > 9)

            lockY = row;

        else 

            lockY = row + 1;

        if (col - 1 < 0)

            lockX = col;

        else 

            lockX = col - 1;

        if (Direction == "Top")

        {

            checkValiditySpaceY = boatLen + 2;

            while (checkValiditySpaceY > 0 || lockY >= 0)

            {

                checkValiditySpaceX = 3;

                moveX = lockX;

                while (checkValiditySpaceX > 0 || moveX <= 9 || moveX <= col + 1)

                {

                    if (Table[moveX,lockY] != 0)

                        return (false);

                    ++moveX;

                    --checkValiditySpaceX;

                }

                --checkValiditySpaceY;

                --lockY;

            }

        }

        return (true);

    }

    public static void placeBoat(int boatLen, int[,]Table, int numOfBoat)

    {

        int row, col;

        int numPlaceBoat;

        String answerDirection;

        String[]directionPosibility = new String[4];

        do{

            Console.WriteLine("Position the " + boatLen + " place boat :");

            Console.Write("Row coordinate:");

            row = int.Parse(Console.ReadLine());

            Console.Write("Col coordinate:");

            col = int.Parse(Console.ReadLine());

            while ((row < 0 || row > 9) || (col < 0 || col > 9))

            {

                Console.WriteLine("Sorry one of the coordinate is not correct..");

                Console.WriteLine("Please enter coordinate between 0 and 9 include :");

                Console.Write("Row coordinate:");

                row = int.Parse(Console.ReadLine());

                Console.Write("Col coordinate:");

                col = int.Parse(Console.ReadLine());

            }

            showPosibleDirection(row, col, 5, directionPosibility);

            Console.Write("Choose the direction :");

            answerDirection = Console.ReadLine();

            while (checkDirectionValidity(directionPosibility, answerDirection) == false)

            {

                Console.WriteLine("Sorry the direction you selected is not valid..");

                Console.WriteLine("Please choose between the proposed direction!!");

                showPosibleDirection(row, col, 5, directionPosibility);

                Console.Write("Choose the direction :");

                answerDirection = Console.ReadLine();

            }

        }while (checkValidityPlacement(row, col, boatLen, answerDirection, Table) == false);

        numPlaceBoat = 0;

        if (answerDirection == "Top")

        {

            while (numPlaceBoat < boatLen)

            {

                Table[row,col] = numOfBoat;

                --row;

                ++numPlaceBoat;

            }

        }

        else if (answerDirection == "Bottom")

        {

            while (numPlaceBoat < boatLen)

            {

                Table[row,col] = numOfBoat;

                ++row;

                ++numPlaceBoat;

            }

        }

        else if (answerDirection == "Left")

        {

            while (numPlaceBoat < boatLen)

            {

                Table[row,col] = numOfBoat;

                --col;

                ++numPlaceBoat;

            }

        }

        else if (answerDirection == "Right")

        {

            while (numPlaceBoat < boatLen)

            {

                Table[row,col] = numOfBoat;

                ++col;

                ++numPlaceBoat;

            }

        }

        showTable(Table, 10, 10);

    }

    public static void createTablePlayer(int[,]Table, int maxRow, int maxCol, String name)

    {

        int row;

        int col;

        row = 0;

        while (row < maxRow)

        {

            col = 0;

            while (col < maxCol)

            {

                Table[row,col] = 0;

                ++col;

            }

            ++row;

        }

        placeBoat(5, Table, 1);

        placeBoat(4, Table, 2);

        placeBoat(3, Table, 3);

        placeBoat(3, Table, 4);

        placeBoat(2, Table, 5);

    }

    public static void createTableComputer(int[,]Table, int maxRow, int maxCol, String name)

    {

        int row;

        int col;

        row = 0;

        while (row < maxRow)

        {

            col = 0;

            while (col < maxCol)

            {

                Table[row,col] = 0;

                ++col;

            }

            ++row;

        }

    }

    public static void showTable(int[,]Table, int maxRow, int maxCol)

    {

        int row;

        int col;

        int count;

        row = 0;

        count = 0;

        Console.Write("\n     " + count++);

        while (count < 10)

            Console.Write("   " + count++);

        Console.WriteLine("\n");

        while (row < maxRow)

        {

            col = 0;

            Console.Write(" " + row);

            while (col < maxCol)

            {

                if (Table[row,col] == 0)

                    Console.Write("   ~");

                else 

                    Console.Write("   " + Table[row, col]);

                ++col;  

            }

            Console.WriteLine(" \n");

            ++row;

        }

    }

    public static void showTitle()

    {

        Console.WriteLine("            ---------------");

        Console.WriteLine("            | BATTLESHIPS |");

        Console.WriteLine("            ---------------\n\n");

    }

    public static void gameManager()

    {

        char answer;

        int mode;

        bool valid = false;

        showTitle();

        Console.WriteLine("Do you want to start a run (Y/N)??");

        answer = Char.Parse(Console.ReadLine());

        if ('Y' == answer || 'y' == answer)

        {

            Console.WriteLine("Who is your ennemi ??");

            Console.WriteLine("1. Player");

            Console.WriteLine("2. Computer");

            Console.WriteLine("0. Exit");

            Console.Write("Choice :");

            mode = int.Parse(Console.ReadLine());

            while (valid == false)

            {

                if (1 == mode)

                {

                    int[,] Player1 = new int[10, 10];

                    int[,] Player2 = new int[10, 10];

                    createTablePlayer(Player1, 10, 10, "Player1");

                    createTablePlayer(Player2, 10, 10, "Player2");

                    //showTable(array, 10, 10);

                    valid = true;

                }

                else if (2 == mode)

                {

                    int[,] Player1 = new int[10, 10];

                    int[,] Bot = new int[10, 10];

                    createTablePlayer(Player1, 10, 10, "Player1");

                    createTableComputer(Bot, 10, 10, "Player2");

                    valid = true;

                }

                else if (0 == mode)

                {

                    Console.WriteLine("\n");

                    Console.WriteLine("                BYE !!!");

                    valid = true;

                }

                else

                {

                    Console.WriteLine("Not valid answer ");

                    Console.WriteLine("Please try again ");

                    mode = int.Parse(Console.ReadLine());

                }

            }

        }

    }

    public static void Main()

    {

        gameManager();

    }

}

​