private static int DoHumanMove(ConnectFourBoard board, ConnectFourPiece human)
{
var location = -1;
var legalMoves = new HashSet <int>(board.GetLegalMoves());
var availableMoves = string.Join(",", board.GetLegalMoves().Select(m => $"{m}"));
while (!legalMoves.Contains(location))
{
Console.WriteLine($"please, enter where to put next {human} [{availableMoves}]");
location = int.TryParse(new string(Console.ReadKey().KeyChar, 1), out var loc) ? loc : -1;
}
return(location);
}
private static void PrintResult(int moveNumber, ConnectFourBoard board, ConnectFourPiece human)
{
Console.Clear();
Console.WriteLine($"After {moveNumber} steps");
Console.WriteLine(board.ToString());
if (board.IsWin())
{
var winnerName = board.GetTurn() == human ? "computer" : "human";
Console.WriteLine($"{winnerName} wins!");
}
else
{
Console.WriteLine("It's a draw!");
}
}
private int GetMatchingCount(Segment segment, ConnectFourPiece piece)
{
return(segment.Locations.Count(l => _positions[l] == piece));
}
private bool AreAllTheSameFill(Segment segment, ConnectFourPiece piece)
{
return(GetMatchingCount(segment, piece) == segment.Locations.Count);
}
public ConnectFourBoard(ConnectFourPiece[] positions, ConnectFourPiece turn)
{
_positions = positions;
_turn = turn ?? throw new ArgumentNullException(nameof(turn));
}
//the very first turn game state
public ConnectFourBoard()
{
_positions = Enumerable.Range(1, CellAmount).Select(_ => (ConnectFourPiece)ConnectFourPiece.Empty).ToArray(); //the field is empty
_turn = ConnectFourPiece.Black as ConnectFourPiece; //first player puts Black pieces
}
