public static bool IsLegalMove(this BitBoard board, byte player, ulong bitMove)
{
if (board.GetPieceAt(bitMove) != Constant.EmptyCell)
{
return(false);
}
var legalMoves = board.GetLegalMoves(player);
return((bitMove & legalMoves) != 0);
}
public static void DisplayWithLastMoveAndLegalMoves(this BitBoard board, ulong lastBitMove, byte player)
{
Console.WriteLine(" a b c d e f g h");
var legalMoves = board.GetLegalMoves(player);
var moveIndex = lastBitMove.BitScanReverse();
var row = 0;
for (var i = 0; i < 64; i++)
{
if (i % 8 == 0)
{
row++;
if (i != 0)
{
Console.WriteLine();
}
Console.Write(row + " ");
}
var pos = 1UL << i;
var isBlack = (board.Pieces[Black] & pos) != 0;
var isWhite = (board.Pieces[White] & pos) != 0;
if (isBlack && isWhite)
{
Console.Write(Constant.WrongCellStr);
}
else if (isBlack)
{
Console.Write(moveIndex == i ? Constant.LastBlackMoveStr : Constant.BlackPieceStr);
}
else if (isWhite)
{
Console.Write(moveIndex == i ? Constant.LastWhiteMoveStr : Constant.WhitePieceStr);
}
else if ((legalMoves & pos) != 0)
{
Console.Write(Constant.LegalMoveStr);
}
else
{
Console.Write(Constant.EmptyCellStr);
}
}
Console.WriteLine();
}
public State(BitBoard board, byte player)
{
Player = player;
Board = board;
BitLegalMoves = board.GetLegalMoves(player);
}
public static bool HasLegalMoves(this BitBoard board, byte player)
{
return(board.GetLegalMoves(player) != 0);
}