/// <summary>
/// Counts the number of discs of a given color on the board.
/// (works for Disc.Empty)
/// </summary>
/// <param name="board">The game board</param>
/// <param name="color">The player color</param>
/// <returns>The disc count</returns>
public static int CountDiscs(Disc[,] board, Disc color)
{
int count = 0;
foreach (Point p in board.PointsIterator())
if (board.At(p) == color)
count++;
return count;
}
/// <summary>
/// Counts the number of discs of a given color on the board.
/// (works for Disc.Empty)
/// </summary>
/// <param name="board">The game board</param>
/// <param name="color">The player color</param>
/// <returns>The disc count</returns>
public static int CountDiscs(Disc[,] board, Disc color)
{
return board.PointsIterator().Count(p => board.At(p) == color);
}
/// <summary>
/// Returns the set of valid moves for a given board and a given player
/// </summary>
/// <param name="board">The game board</param>
/// <param name="currentPlayer">The current player</param>
/// <returns>A set of valid play points</returns>
public static ISet<Point> ValidMoves(Disc[,] board, Disc currentPlayer)
{
HashSet<Point> validMoves = new HashSet<Point>();
foreach (Point p in board.PointsIterator())
if (IsValidMove(board, p, currentPlayer))
validMoves.Add(p);
return validMoves;
}