/// <summary>
/// Sets the piece on a board square. Don't call this function to update bord when moving a piece,
/// only call it to place one piece directly on board.
/// </summary>
/// <param name="square">The square to place a piece.</param>
/// <param name="piece">The piece to place. To remove a piece use "Piece.None".</param>
public void PlacePiece(Square square, Piece piece)
{
//Hash out current piece on square
if (m_squares[(int)square] != Piece.None)
{
m_boardHash.HashFlipPieceSquare(m_squares[(int)square], square);
}
//Hash in new piece
if (piece != Piece.None)
{
m_boardHash.HashFlipPieceSquare(piece, square);
}
//Update quick indexes
switch (GetPieceColor(piece))
{
case PieceColor.White:
m_whiteLocationList.PlacePiece(square);
m_blackLocationList.RemovePiece(square);
break;
case PieceColor.Black:
m_blackLocationList.PlacePiece(square);
m_whiteLocationList.RemovePiece(square);
break;
case PieceColor.None:
m_whiteLocationList.RemovePiece(square);
m_blackLocationList.RemovePiece(square);
break;
}
//Place piece on board
m_squares[(int)square] = piece;
//and update king location
if (piece == Piece.WhiteKing)
{
m_whiteKingLocation = square;
}
if (piece == Piece.BlackKing)
{
m_blackKingLocation = square;
}
}
/// <summary>
/// Initializes a new instance of Board ready to be played on
/// and with pieces put on their initial locations.
/// </summary>
public Board()
{
//we make board twice as big as we use the 0x88 scheme for representing the board
m_squares = new Piece[NOF_SQUARS];
for (int i = 0; i < m_squares.Length; ++i)
m_squares[i] = Piece.None;
m_squares[(int)Square.A1] = Piece.WhiteRook;
m_squares[(int)Square.B1] = Piece.WhiteKnight;
m_squares[(int)Square.C1] = Piece.WhiteBishop;
m_squares[(int)Square.D1] = Piece.WhiteQueen;
m_squares[(int)Square.E1] = Piece.WhiteKing;
m_squares[(int)Square.F1] = Piece.WhiteBishop;
m_squares[(int)Square.G1] = Piece.WhiteKnight;
m_squares[(int)Square.H1] = Piece.WhiteRook;
m_squares[(int)Square.A2] = Piece.WhitePawn;
m_squares[(int)Square.B2] = Piece.WhitePawn;
m_squares[(int)Square.C2] = Piece.WhitePawn;
m_squares[(int)Square.D2] = Piece.WhitePawn;
m_squares[(int)Square.E2] = Piece.WhitePawn;
m_squares[(int)Square.F2] = Piece.WhitePawn;
m_squares[(int)Square.G2] = Piece.WhitePawn;
m_squares[(int)Square.H2] = Piece.WhitePawn;
m_squares[(int)Square.A7] = Piece.BlackPawn;
m_squares[(int)Square.B7] = Piece.BlackPawn;
m_squares[(int)Square.C7] = Piece.BlackPawn;
m_squares[(int)Square.D7] = Piece.BlackPawn;
m_squares[(int)Square.E7] = Piece.BlackPawn;
m_squares[(int)Square.F7] = Piece.BlackPawn;
m_squares[(int)Square.G7] = Piece.BlackPawn;
m_squares[(int)Square.H7] = Piece.BlackPawn;
m_squares[(int)Square.A8] = Piece.BlackRook;
m_squares[(int)Square.B8] = Piece.BlackKnight;
m_squares[(int)Square.C8] = Piece.BlackBishop;
m_squares[(int)Square.D8] = Piece.BlackQueen;
m_squares[(int)Square.E8] = Piece.BlackKing;
m_squares[(int)Square.F8] = Piece.BlackBishop;
m_squares[(int)Square.G8] = Piece.BlackKnight;
m_squares[(int)Square.H8] = Piece.BlackRook;
m_state.ColorToPlay = PieceColor.White;
m_state.WhiteCanCastleShort = true;
m_state.WhiteCanCastleLong = true;
m_state.BlackCanCastleShort = true;
m_state.BlackCanCastleLong = true;
m_state.EnPassantTarget = Square.None;
m_state.NonHitAndPawnMovesPlayed = 0;
m_history = new HashHistory();
m_pieceFactory = FlyweightPieceFactory.Instance();
m_whiteLocationList = new PieceLocationManager();
m_blackLocationList = new PieceLocationManager();
foreach (Square square in this)
{
if (GetPieceColor(square) == PieceColor.White)
m_whiteLocationList.PlacePiece(square);
if (GetPieceColor(square) == PieceColor.Black)
m_blackLocationList.PlacePiece(square);
}
m_whiteKingLocation = Square.E1;
m_blackKingLocation = Square.E8;
m_boardHash = new ZobristHash(this);
AddToHistory();
}
/// <summary>
/// Initializes a new instance of Board ready to be played on
/// and with pieces put on their initial locations.
/// </summary>
public Board()
{
//we make board twice as big as we use the 0x88 scheme for representing the board
m_squares = new Piece[NOF_SQUARS];
for (int i = 0; i < m_squares.Length; ++i)
{
m_squares[i] = Piece.None;
}
m_squares[(int)Square.A1] = Piece.WhiteRook;
m_squares[(int)Square.B1] = Piece.WhiteKnight;
m_squares[(int)Square.C1] = Piece.WhiteBishop;
m_squares[(int)Square.D1] = Piece.WhiteQueen;
m_squares[(int)Square.E1] = Piece.WhiteKing;
m_squares[(int)Square.F1] = Piece.WhiteBishop;
m_squares[(int)Square.G1] = Piece.WhiteKnight;
m_squares[(int)Square.H1] = Piece.WhiteRook;
m_squares[(int)Square.A2] = Piece.WhitePawn;
m_squares[(int)Square.B2] = Piece.WhitePawn;
m_squares[(int)Square.C2] = Piece.WhitePawn;
m_squares[(int)Square.D2] = Piece.WhitePawn;
m_squares[(int)Square.E2] = Piece.WhitePawn;
m_squares[(int)Square.F2] = Piece.WhitePawn;
m_squares[(int)Square.G2] = Piece.WhitePawn;
m_squares[(int)Square.H2] = Piece.WhitePawn;
m_squares[(int)Square.A7] = Piece.BlackPawn;
m_squares[(int)Square.B7] = Piece.BlackPawn;
m_squares[(int)Square.C7] = Piece.BlackPawn;
m_squares[(int)Square.D7] = Piece.BlackPawn;
m_squares[(int)Square.E7] = Piece.BlackPawn;
m_squares[(int)Square.F7] = Piece.BlackPawn;
m_squares[(int)Square.G7] = Piece.BlackPawn;
m_squares[(int)Square.H7] = Piece.BlackPawn;
m_squares[(int)Square.A8] = Piece.BlackRook;
m_squares[(int)Square.B8] = Piece.BlackKnight;
m_squares[(int)Square.C8] = Piece.BlackBishop;
m_squares[(int)Square.D8] = Piece.BlackQueen;
m_squares[(int)Square.E8] = Piece.BlackKing;
m_squares[(int)Square.F8] = Piece.BlackBishop;
m_squares[(int)Square.G8] = Piece.BlackKnight;
m_squares[(int)Square.H8] = Piece.BlackRook;
m_state.ColorToPlay = PieceColor.White;
m_state.WhiteCanCastleShort = true;
m_state.WhiteCanCastleLong = true;
m_state.BlackCanCastleShort = true;
m_state.BlackCanCastleLong = true;
m_state.EnPassantTarget = Square.None;
m_state.NonHitAndPawnMovesPlayed = 0;
m_history = new HashHistory();
m_pieceFactory = FlyweightPieceFactory.Instance();
m_whiteLocationList = new PieceLocationManager();
m_blackLocationList = new PieceLocationManager();
foreach (Square square in this)
{
if (GetPieceColor(square) == PieceColor.White)
{
m_whiteLocationList.PlacePiece(square);
}
if (GetPieceColor(square) == PieceColor.Black)
{
m_blackLocationList.PlacePiece(square);
}
}
m_whiteKingLocation = Square.E1;
m_blackKingLocation = Square.E8;
m_boardHash = new ZobristHash(this);
AddToHistory();
}