[Solved] Increase stack size c#

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What you can do is: If Creation fails pass back a bool and try again from scratch.

public void Generate()
{
    Fill();
    while(!Fleet())
    {
        // I assume Fill clears your board again?!
        Fill();
    }
}

public bool Fleet()
{
    return Ship2(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) &&
           Ship3(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) &&
           Ship3(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) &&
           Ship4(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) &&
           Ship5(Utility.R(1,9),Utility.R(1,9),Utility.R(4));
}

public bool Ship2(int x, int y, int r)
{
    if (r == 0)
    {
        return CreateShip(x, y) &&
               CreateShip(x, (y + 1));
    }

    if (r == 1)
    {
        return CreateShip(x, y) &&
               CreateShip(x, (y + -1));
    }

    if (r == 2)
    {
        return CreateShip(x, y) &&
               CreateShip((x-1), (y));
    }

    if (r == 3)
    {
        return CreateShip(x, y) &&
               CreateShip((x+1), (y));
    }

    return false;
}

public bool CreateShip(int x, int y)
{
    if (x <= 9 && y <= 9 && x >= 0 && y >= 0)
    {
        if (Board[x, y] == 'L')
        {
            return false;
        }
        else
        {
            Board[x, y] = 'L';
        }
    }
    else
    {
        return false;
    }

    return true;
}

Note: This will still not work, if the input parameters to CreateShip never change. You will now not see any Exception but the Generate method will never finish.

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solved Increase stack size c#