private NoughtsAndCrossesPosition(NoughtsAndCrossesPiece[][] board)
{
if (board?.Length == 0)
{
throw new ArgumentException($"{nameof(board)} is empty or null.");
}
int size = board.Length;
_board = new NoughtsAndCrossesPiece[size][];
for (int i = 0; i < size; i++)
{
if (board[i].Length != size)
{
throw new ArgumentException($"{nameof(board)} is not square.");
}
_board[i] = new NoughtsAndCrossesPiece[size];
for (int j = 0; j < size; j++)
{
_board[i][j] = board[i][j];
}
}
}
internal NoughtsAndCrossesPosition(int size)
{
_board = new NoughtsAndCrossesPiece[size][];
for (int i = 0; i < size; i++)
{
_board[i] = new NoughtsAndCrossesPiece[size];
for (int j = 0; j < size; j++)
{
_board[i][j] = new Space();
}
}
}