public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
PositionDistance distance2 = (PositionDistance)obj;
return(DistanceX == distance2.DistanceX && DistanceY == distance2.DistanceY);
}
protected virtual bool IsValidMoveKnight(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance posDelta = new PositionDistance(move.OriginalPosition, move.NewPosition);
if ((posDelta.DistanceX != 2 || posDelta.DistanceY != 1) && (posDelta.DistanceX != 1 || posDelta.DistanceY != 2))
{
return(false);
}
return(true);
}
protected virtual bool IsValidMoveKing(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance distance = new PositionDistance(move.OriginalPosition, move.NewPosition);
if ((distance.DistanceX != 1 || distance.DistanceY != 1) &&
(distance.DistanceX != 0 || distance.DistanceY != 1) &&
(distance.DistanceX != 1 || distance.DistanceY != 0) &&
(distance.DistanceX != 2 || distance.DistanceY != 0))
{
return(false);
}
if (distance.DistanceX != 2)
{
return(true);
}
return(CanCastle(move));
}
protected virtual bool IsValidMoveRook(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance posDelta = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (posDelta.DistanceX != 0 && posDelta.DistanceY != 0)
{
return(false);
}
bool increasingRank = (int)move.NewPosition.Rank > (int)move.OriginalPosition.Rank;
bool increasingFile = (int)move.NewPosition.File > (int)move.OriginalPosition.File;
if (posDelta.DistanceX == 0)
{
int f = (int)move.OriginalPosition.File;
for (int r = (int)move.OriginalPosition.Rank + (increasingRank ? 1 : -1);
increasingRank?r <(int)move.NewPosition.Rank : r> (int) move.NewPosition.Rank;
r += increasingRank ? 1 : -1)
{
if (Board[r][f].Player != Player.None)
{
return(false);
}
}
}
else // (posDelta.DeltaY == 0)
{
int r = (int)move.OriginalPosition.Rank;
for (int f = (int)move.OriginalPosition.File + (increasingFile ? 1 : -1);
increasingFile?f <(int)move.NewPosition.File : f> (int) move.NewPosition.File;
f += increasingFile ? 1 : -1)
{
if (Board[r][f].Player != Player.None)
{
return(false);
}
}
}
return(true);
}
public virtual MoveType ApplyMove(Move move, bool alreadyValidated, out Piece captured)
{
ChessUtilities.ThrowIfNull(move, "move");
captured = null;
if (!alreadyValidated && !IsValidMove(move))
{
return(MoveType.Invalid);
}
MoveType type = MoveType.Move;
Piece movingPiece = GetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank);
Piece capturedPiece = GetPieceAt(move.NewPosition.File, move.NewPosition.Rank);
captured = capturedPiece;
Piece newPiece = movingPiece;
bool isCapture = capturedPiece != null;
CastlingType castle = CastlingType.None;
if (movingPiece is Pawn)
{
i_halfMoveClock = 0;
PositionDistance pd = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (pd.DistanceX == 1 && pd.DistanceY == 1 && GetPieceAt(move.NewPosition) == null)
{ // en passant
isCapture = true;
captured = GetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank);
SetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank, null);
}
if (move.NewPosition.Rank == (move.Player == Player.White ? 8 : 1))
{
newPiece = MapPgnCharToPiece(move.Promotion.Value, move.Player).AsPromotion();
type |= MoveType.Promotion;
}
}
else if (movingPiece is King)
{
if (movingPiece.Owner == Player.White)
{
CanWhiteCastleKingSide = CanWhiteCastleQueenSide = false;
}
else
{
CanBlackCastleKingSide = CanBlackCastleQueenSide = false;
}
if (CastlingCanBeLegal &&
((GetPieceAt(move.NewPosition) is Rook && GetPieceAt(move.NewPosition).Owner == move.Player) ||
((move.NewPosition.File == File.C || move.NewPosition.File == File.G) &&
(move.Player == Player.White ? InitialWhiteKingFile : InitialBlackKingFile) == File.E &&
move.OriginalPosition.File == File.E)))
{
castle = ApplyCastle(move);
type |= MoveType.Castling;
isCapture = false;
}
}
else if (movingPiece is Rook)
{
if (move.Player == Player.White)
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == 1)
{
CanWhiteCastleQueenSide = false;
}
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == 1)
{
CanWhiteCastleKingSide = false;
}
}
else
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == 8)
{
CanBlackCastleQueenSide = false;
}
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == 8)
{
CanBlackCastleKingSide = false;
}
}
}
if (isCapture)
{
type |= MoveType.Capture;
i_halfMoveClock = 0;
if (move.NewPosition.File == File.A && move.NewPosition.Rank == 1)
{
CanWhiteCastleQueenSide = false;
}
else if (move.NewPosition.File == File.H && move.NewPosition.Rank == 1)
{
CanWhiteCastleKingSide = false;
}
else if (move.NewPosition.File == File.A && move.NewPosition.Rank == 8)
{
CanBlackCastleQueenSide = false;
}
else if (move.NewPosition.File == File.H && move.NewPosition.Rank == 8)
{
CanBlackCastleKingSide = false;
}
}
if (!isCapture && !(movingPiece is Pawn))
{
i_halfMoveClock++;
if (i_halfMoveClock >= 100)
{
fiftyMoves = true;
}
else
{
fiftyMoves = false;
}
}
if (move.Player == Player.Black)
{
i_fullMoveNumber++;
}
if (castle == CastlingType.None)
{
SetPieceAt(move.NewPosition.File, move.NewPosition.Rank, newPiece);
SetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank, null);
}
WhoseTurn = ChessUtilities.GetOpponentOf(move.Player);
AddDetailedMove(new DetailedMove(move, movingPiece, isCapture, castle));
return(type);
}
protected virtual bool ApplyMove(Move move, bool alreadyValidated, bool validateHasAnyValidMoves)
{
Utilities.ThrowIfNull(move, "move");
if (!alreadyValidated && !IsValidMove(move))
return false;
ChessPiece movingPiece = GetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank);
ChessPiece newPiece = movingPiece;
if (movingPiece.Piece == Piece.Pawn)
{
PositionDistance pd = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (pd.DistanceX == 1 && pd.DistanceY == 1 && GetPieceAt(move.NewPosition).Piece == Piece.None)
{ // en passant
SetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank, ChessPiece.None);
}
if (move.NewPosition.Rank == (move.Player == Player.White ? Rank.Eight : Rank.One))
{
newPiece = new ChessPiece(move.Promotion, move.Player);
}
}
else if (movingPiece.Piece == Piece.King)
{
if (movingPiece.Player == Player.White)
_whiteKingMoved = true;
else
_blackKingMoved = true;
if (new PositionDistance(move.OriginalPosition, move.NewPosition).DistanceX == 2)
{
Rank rank = move.Player == Player.White ? Rank.One : Rank.Eight;
File rookFile = move.NewPosition.File == File.C ? File.A : File.H;
File newRookFile = move.NewPosition.File == File.C ? File.D : File.F;
SetPieceAt(newRookFile, rank, new ChessPiece(Piece.Rook, move.Player));
SetPieceAt(rookFile, rank, ChessPiece.None);
}
}
else if (movingPiece.Piece == Piece.Rook)
{
if (move.Player == Player.White)
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == Rank.One)
_whiteRookAMoved = true;
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == Rank.One)
_whiteRookHMoved = true;
}
else
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == Rank.Eight)
_blackRookAMoved = true;
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == Rank.Eight)
_blackRookHMoved = true;
}
}
SetPieceAt(move.NewPosition.File, move.NewPosition.Rank, newPiece);
SetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank, ChessPiece.None);
WhoseTurn = Utilities.GetOpponentOf(move.Player);
_moves.Add(move);
return true;
}
protected virtual bool IsValidMoveKnight(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance posDelta = new PositionDistance(move.OriginalPosition, move.NewPosition);
if ((posDelta.DistanceX != 2 || posDelta.DistanceY != 1) && (posDelta.DistanceX != 1 || posDelta.DistanceY != 2))
return false;
return true;
}
protected virtual bool IsValidMoveBishop(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance posDelta = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (posDelta.DistanceX != posDelta.DistanceY)
return false;
bool increasingRank = (int)move.NewPosition.Rank > (int)move.OriginalPosition.Rank;
bool increasingFile = (int)move.NewPosition.File > (int)move.OriginalPosition.File;
for (int f = (int)move.OriginalPosition.File + (increasingFile ? 1 : -1), r = (int)move.OriginalPosition.Rank + (increasingRank ? 1 : -1);
increasingFile ? f < (int)move.NewPosition.File : f > (int)move.NewPosition.File;
f += increasingFile ? 1 : -1, r += increasingRank ? 1 : -1)
{
if (Board[r][f].Player != Player.None)
{
return false;
}
}
return true;
}
protected virtual bool IsValidMovePawn(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance posDelta = new PositionDistance(move.OriginalPosition, move.NewPosition);
if ((posDelta.DistanceX != 0 || posDelta.DistanceY != 1) && (posDelta.DistanceX != 1 || posDelta.DistanceY != 1)
&& (posDelta.DistanceX != 0 || posDelta.DistanceY != 2))
return false;
if (move.Player == Player.White)
{
if ((int)move.OriginalPosition.Rank < (int)move.NewPosition.Rank)
return false;
if (move.NewPosition.Rank == Rank.Eight && move.Promotion == Piece.None)
return false;
}
if (move.Player == Player.Black)
{
if ((int)move.OriginalPosition.Rank > (int)move.NewPosition.Rank)
return false;
if (move.NewPosition.Rank == Rank.One && move.Promotion == Piece.None)
return false;
}
bool checkEnPassant = false;
if (posDelta.DistanceY == 2)
{
if ((move.OriginalPosition.Rank != Rank.Two && move.Player == Player.White)
|| (move.OriginalPosition.Rank != Rank.Seven && move.Player == Player.Black))
return false;
if (move.OriginalPosition.Rank == Rank.Two && GetPieceAt(move.OriginalPosition.File, Rank.Three).Piece != Piece.None)
return false;
if (move.OriginalPosition.Rank == Rank.Seven && GetPieceAt(move.OriginalPosition.File, Rank.Six).Piece != Piece.None)
return false;
}
if (posDelta.DistanceX == 0 && (posDelta.DistanceY == 1 || posDelta.DistanceY == 2))
{
if (GetPieceAt(move.NewPosition).Player != Player.None)
return false;
}
else
{
if (GetPieceAt(move.NewPosition).Player != Utilities.GetOpponentOf(move.Player))
checkEnPassant = true;
if (GetPieceAt(move.NewPosition).Player == move.Player)
return false;
}
if (checkEnPassant)
{
if (_moves.Count == 0)
{
return false;
}
if ((move.OriginalPosition.Rank != Rank.Five && move.Player == Player.White)
|| (move.OriginalPosition.Rank != Rank.Four && move.Player == Player.Black))
return false;
Move latestMove = _moves[_moves.Count - 1];
if (latestMove.Player != Utilities.GetOpponentOf(move.Player))
return false;
if (move.Player == Player.White)
{
if (latestMove.OriginalPosition.Rank != Rank.Seven || latestMove.NewPosition.Rank != Rank.Five)
return false;
}
else // (m.Player == Players.Black)
{
if (latestMove.OriginalPosition.Rank != Rank.Two || latestMove.NewPosition.Rank != Rank.Four)
return false;
}
if (move.NewPosition.File != latestMove.NewPosition.File)
return false;
}
return true;
}
protected virtual bool IsValidMoveKing(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance distance = new PositionDistance(move.OriginalPosition, move.NewPosition);
if ((distance.DistanceX != 1 || distance.DistanceY != 1)
&& (distance.DistanceX != 0 || distance.DistanceY != 1)
&& (distance.DistanceX != 1 || distance.DistanceY != 0)
&& (distance.DistanceX != 2 || distance.DistanceY != 0))
return false;
if (distance.DistanceX != 2)
return true;
return CanCastle(move);
}
public virtual MoveType ApplyMove(Move move, bool alreadyValidated, out Piece captured)
{
ChessUtilities.ThrowIfNull(move, "move");
captured = null;
if (!alreadyValidated && !IsValidMove(move))
{
return(MoveType.Invalid);
}
MoveType type = MoveType.Move;
Piece movingPiece = GetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank);
Piece capturedPiece = GetPieceAt(move.NewPosition.File, move.NewPosition.Rank);
captured = capturedPiece;
Piece newPiece = movingPiece;
enp = "-1";
bool isCapture = capturedPiece != null;
CastlingType castle = CastlingType.None;
if (movingPiece is Pawn)
{
i_halfMoveClock = 0;
PositionDistance pd = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (pd.DistanceX == 1 && pd.DistanceY == 1 && GetPieceAt(move.NewPosition) == null)
{ // en passant
isCapture = true;
captured = GetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank);
enp = move.NewPosition.File.ToString().ToLower() + move.OriginalPosition.Rank.ToString();
SetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank, null);
}
if (move.NewPosition.Rank == (move.Player == Player.White ? 8 : 1))
{
//get promotion type
char PromoteTo;
if (move.Promotion == null)
{
string promote;
Console.Write("enter promotion type:");
promote = Console.ReadLine();
switch (promote)
{
case "queen":
PromoteTo = 'Q';
break;
case "bishop":
PromoteTo = 'B';
break;
case "knight":
PromoteTo = 'N';
break;
case "rook":
PromoteTo = 'R';
break;
default:
PromoteTo = 'Q';
break;
}
}
else
{
PromoteTo = 'Q';
}
newPiece = MapPgnCharToPiece(PromoteTo, move.Player).AsPromotion();
type |= MoveType.Promotion;
}
}
else if (movingPiece is King)
{
if (movingPiece.Owner == Player.White)
{
CanWhiteCastleKingSide = CanWhiteCastleQueenSide = false;
}
else
{
CanBlackCastleKingSide = CanBlackCastleQueenSide = false;
}
if (CastlingCanBeLegal &&
((GetPieceAt(move.NewPosition) is Rook && GetPieceAt(move.NewPosition).Owner == move.Player) ||
((move.NewPosition.File == File.C || move.NewPosition.File == File.G) &&
(move.Player == Player.White ? InitialWhiteKingFile : InitialBlackKingFile) == File.E &&
move.OriginalPosition.File == File.E)))
{
castle = ApplyCastle(move);
type |= MoveType.Castling;
isCapture = false;
}
}
else if (movingPiece is Rook)
{
if (move.Player == Player.White)
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == 1)
{
CanWhiteCastleQueenSide = false;
}
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == 1)
{
CanWhiteCastleKingSide = false;
}
}
else
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == 8)
{
CanBlackCastleQueenSide = false;
}
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == 8)
{
CanBlackCastleKingSide = false;
}
}
}
if (isCapture)
{
type |= MoveType.Capture;
i_halfMoveClock = 0;
if (move.NewPosition.File == File.A && move.NewPosition.Rank == 1)
{
CanWhiteCastleQueenSide = false;
}
else if (move.NewPosition.File == File.H && move.NewPosition.Rank == 1)
{
CanWhiteCastleKingSide = false;
}
else if (move.NewPosition.File == File.A && move.NewPosition.Rank == 8)
{
CanBlackCastleQueenSide = false;
}
else if (move.NewPosition.File == File.H && move.NewPosition.Rank == 8)
{
CanBlackCastleKingSide = false;
}
}
if (!isCapture && !(movingPiece is Pawn))
{
i_halfMoveClock++;
if (i_halfMoveClock >= 100)
{
fiftyMoves = true;
}
else
{
fiftyMoves = false;
}
}
if (move.Player == Player.Black)
{
i_fullMoveNumber++;
}
if (castle == CastlingType.None)
{
SetPieceAt(move.NewPosition.File, move.NewPosition.Rank, newPiece);
SetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank, null);
}
WhoseTurn = ChessUtilities.GetOpponentOf(move.Player);
AddDetailedMove(new DetailedMove(move, movingPiece, isCapture, castle));
return(type);
}
protected virtual bool ApplyMove(Move move, bool alreadyValidated, bool validateHasAnyValidMoves)
{
Utilities.ThrowIfNull(move, "move");
if (!alreadyValidated && !IsValidMove(move))
{
return(false);
}
ChessPiece movingPiece = GetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank);
ChessPiece newPiece = movingPiece;
if (movingPiece.Piece == Piece.Pawn)
{
PositionDistance pd = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (pd.DistanceX == 1 && pd.DistanceY == 1 && GetPieceAt(move.NewPosition).Piece == Piece.None)
{ // en passant
SetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank, ChessPiece.None);
}
if (move.NewPosition.Rank == (move.Player == Player.White ? Rank.Eight : Rank.One))
{
newPiece = new ChessPiece(move.Promotion, move.Player);
}
}
else if (movingPiece.Piece == Piece.King)
{
if (movingPiece.Player == Player.White)
{
_whiteKingMoved = true;
}
else
{
_blackKingMoved = true;
}
if (new PositionDistance(move.OriginalPosition, move.NewPosition).DistanceX == 2)
{
Rank rank = move.Player == Player.White ? Rank.One : Rank.Eight;
File rookFile = move.NewPosition.File == File.C ? File.A : File.H;
File newRookFile = move.NewPosition.File == File.C ? File.D : File.F;
SetPieceAt(newRookFile, rank, new ChessPiece(Piece.Rook, move.Player));
SetPieceAt(rookFile, rank, ChessPiece.None);
}
}
else if (movingPiece.Piece == Piece.Rook)
{
if (move.Player == Player.White)
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == Rank.One)
{
_whiteRookAMoved = true;
}
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == Rank.One)
{
_whiteRookHMoved = true;
}
}
else
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == Rank.Eight)
{
_blackRookAMoved = true;
}
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == Rank.Eight)
{
_blackRookHMoved = true;
}
}
}
SetPieceAt(move.NewPosition.File, move.NewPosition.Rank, newPiece);
SetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank, ChessPiece.None);
WhoseTurn = Utilities.GetOpponentOf(move.Player);
_moves.Add(move);
return(true);
}
protected virtual bool IsValidMovePawn(Move move)
{
Utilities.ThrowIfNull(move, "move");
PositionDistance posDelta = new PositionDistance(move.OriginalPosition, move.NewPosition);
if ((posDelta.DistanceX != 0 || posDelta.DistanceY != 1) && (posDelta.DistanceX != 1 || posDelta.DistanceY != 1) &&
(posDelta.DistanceX != 0 || posDelta.DistanceY != 2))
{
return(false);
}
if (move.Player == Player.White)
{
if ((int)move.OriginalPosition.Rank < (int)move.NewPosition.Rank)
{
return(false);
}
if (move.NewPosition.Rank == Rank.Eight && move.Promotion == Piece.None)
{
return(false);
}
}
if (move.Player == Player.Black)
{
if ((int)move.OriginalPosition.Rank > (int)move.NewPosition.Rank)
{
return(false);
}
if (move.NewPosition.Rank == Rank.One && move.Promotion == Piece.None)
{
return(false);
}
}
bool checkEnPassant = false;
if (posDelta.DistanceY == 2)
{
if ((move.OriginalPosition.Rank != Rank.Two && move.Player == Player.White) ||
(move.OriginalPosition.Rank != Rank.Seven && move.Player == Player.Black))
{
return(false);
}
if (move.OriginalPosition.Rank == Rank.Two && GetPieceAt(move.OriginalPosition.File, Rank.Three).Piece != Piece.None)
{
return(false);
}
if (move.OriginalPosition.Rank == Rank.Seven && GetPieceAt(move.OriginalPosition.File, Rank.Six).Piece != Piece.None)
{
return(false);
}
}
if (posDelta.DistanceX == 0 && (posDelta.DistanceY == 1 || posDelta.DistanceY == 2))
{
if (GetPieceAt(move.NewPosition).Player != Player.None)
{
return(false);
}
}
else
{
if (GetPieceAt(move.NewPosition).Player != Utilities.GetOpponentOf(move.Player))
{
checkEnPassant = true;
}
if (GetPieceAt(move.NewPosition).Player == move.Player)
{
return(false);
}
}
if (checkEnPassant)
{
if (_moves.Count == 0)
{
return(false);
}
if ((move.OriginalPosition.Rank != Rank.Five && move.Player == Player.White) ||
(move.OriginalPosition.Rank != Rank.Four && move.Player == Player.Black))
{
return(false);
}
Move latestMove = _moves[_moves.Count - 1];
if (latestMove.Player != Utilities.GetOpponentOf(move.Player))
{
return(false);
}
if (move.Player == Player.White)
{
if (latestMove.OriginalPosition.Rank != Rank.Seven || latestMove.NewPosition.Rank != Rank.Five)
{
return(false);
}
}
else // (m.Player == Players.Black)
{
if (latestMove.OriginalPosition.Rank != Rank.Two || latestMove.NewPosition.Rank != Rank.Four)
{
return(false);
}
}
if (move.NewPosition.File != latestMove.NewPosition.File)
{
return(false);
}
}
return(true);
}
public virtual MoveType ApplyMove(Move move, bool alreadyValidated)
{
ChessUtilities.ThrowIfNull(move, "move");
if (!alreadyValidated && !IsValidMove(move))
return MoveType.Invalid;
MoveType type = MoveType.Move;
Piece movingPiece = GetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank);
Piece capturedPiece = GetPieceAt(move.NewPosition.File, move.NewPosition.Rank);
Piece newPiece = movingPiece;
bool isCapture = capturedPiece != null;
CastlingType castle = CastlingType.None;
if (movingPiece is Pawn)
{
_halfMoveClock = 0;
PositionDistance pd = new PositionDistance(move.OriginalPosition, move.NewPosition);
if (pd.DistanceX == 1 && pd.DistanceY == 1 && GetPieceAt(move.NewPosition) == null)
{ // en passant
isCapture = true;
SetPieceAt(move.NewPosition.File, move.OriginalPosition.Rank, null);
}
if (move.NewPosition.Rank == (move.Player == Player.White ? 8 : 1))
{
newPiece = MapPgnCharToPiece(move.Promotion.Value, move.Player);
type |= MoveType.Promotion;
}
}
else if (movingPiece is King)
{
if (movingPiece.Owner == Player.White)
CanWhiteCastleKingSide = CanWhiteCastleQueenSide = false;
else
CanBlackCastleKingSide = CanBlackCastleQueenSide = false;
if (new PositionDistance(move.OriginalPosition, move.NewPosition).DistanceX == 2 && CastlingCanBeLegal)
{
castle = ApplyCastle(move);
type |= MoveType.Castling;
}
}
else if (movingPiece is Rook)
{
if (move.Player == Player.White)
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == 1)
CanWhiteCastleQueenSide = false;
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == 1)
CanWhiteCastleKingSide = false;
}
else
{
if (move.OriginalPosition.File == File.A && move.OriginalPosition.Rank == 8)
CanBlackCastleQueenSide = false;
else if (move.OriginalPosition.File == File.H && move.OriginalPosition.Rank == 8)
CanBlackCastleKingSide = false;
}
}
if (isCapture)
{
type |= MoveType.Capture;
_halfMoveClock = 0;
if (move.NewPosition.File == File.A && move.NewPosition.Rank == 1)
CanWhiteCastleQueenSide = false;
else if (move.NewPosition.File == File.H && move.NewPosition.Rank == 1)
CanWhiteCastleKingSide = false;
else if (move.NewPosition.File == File.A && move.NewPosition.Rank == 8)
CanBlackCastleQueenSide = false;
else if (move.NewPosition.File == File.H && move.NewPosition.Rank == 8)
CanBlackCastleKingSide = false;
}
if (!isCapture && !(movingPiece is Pawn))
{
_halfMoveClock++;
if (_halfMoveClock >= 100)
{
fiftyMoves = true;
}
else
{
fiftyMoves = false;
}
}
if (move.Player == Player.Black)
{
_fullMoveNumber++;
}
SetPieceAt(move.NewPosition.File, move.NewPosition.Rank, newPiece);
SetPieceAt(move.OriginalPosition.File, move.OriginalPosition.Rank, null);
WhoseTurn = ChessUtilities.GetOpponentOf(move.Player);
_moves.Add(new DetailedMove(move, movingPiece, isCapture, castle));
return type;
}