create a bool Attack with two int variables from user for input. Also check if ship is sunken

public bool Attack(int x, int y)
{
    if (Sunken)
        throw new InvalidOperationException("Ship is destroyed.");

    if (x < 0 || x >= Board.Width || y < 0 || y >= Board.Height)
        throw new InvalidOperationException("Attack was out of range.");

    if (Board.AttackBoard[x, y] == Board.CellState.Hit)
        throw new InvalidOperationException("You've already attacked this position.");

    Board.AttackBoard[x, y] = Board.CellState.Hit;
    if (Board.GetShipAt(x, y) == null)
        return false;

    if (Board.GetShipAt(x, y).IsDestroyed())
    {
        Sunken = true;
        return true;
    }
    return true;
}