public static int Value(this ChessId id)
{
if (id.IsPawn())
{
return(1);
}
if (id.IsRook())
{
return(6);
}
if (id.IsKnight())
{
return(3);
}
if (id.IsBishop())
{
return(3);
}
if (id.IsQueen())
{
return(9);
}
if (id.IsKing())
{
return(10);
}
return(0);
}
public static bool IsBlack(this ChessId id) => id == ChessId.king_black || id == ChessId.queen_black || id == ChessId.rook_black_of_king || id == ChessId.rook_black_of_queen || id == ChessId.knight_black_of_king || id == ChessId.knight_black_of_queen || id == ChessId.bishop_black_of_king || id == ChessId.bishop_black_of_queen || id == ChessId.pawn_black_of_king || id == ChessId.pawn_black_of_queen || id == ChessId.pawn_black_of_rook_of_king || id == ChessId.pawn_black_of_rook_of_queen || id == ChessId.pawn_black_of_knight_of_king || id == ChessId.pawn_black_of_knight_of_queen || id == ChessId.pawn_black_of_bishop_of_king || id == ChessId.pawn_black_of_bishop_of_queen;
public static bool IsWhite(this ChessId id) => id == ChessId.king_white || id == ChessId.queen_white || id == ChessId.rook_white_of_king || id == ChessId.rook_white_of_queen || id == ChessId.knight_white_of_king || id == ChessId.knight_white_of_queen || id == ChessId.bishop_white_of_king || id == ChessId.bishop_white_of_queen || id == ChessId.pawn_white_of_king || id == ChessId.pawn_white_of_queen || id == ChessId.pawn_white_of_rook_of_king || id == ChessId.pawn_white_of_rook_of_queen || id == ChessId.pawn_white_of_knight_of_king || id == ChessId.pawn_white_of_knight_of_queen || id == ChessId.pawn_white_of_bishop_of_king || id == ChessId.pawn_white_of_bishop_of_queen;
public static bool IsPawn(this ChessId id) => id == ChessId.pawn_white_of_king || id == ChessId.pawn_white_of_queen || id == ChessId.pawn_white_of_bishop_of_king || id == ChessId.pawn_white_of_bishop_of_queen || id == ChessId.pawn_white_of_rook_of_king || id == ChessId.pawn_white_of_rook_of_queen || id == ChessId.pawn_white_of_knight_of_king || id == ChessId.pawn_white_of_knight_of_queen || id == ChessId.pawn_black_of_king || id == ChessId.pawn_black_of_queen || id == ChessId.pawn_black_of_bishop_of_king || id == ChessId.pawn_black_of_bishop_of_queen || id == ChessId.pawn_black_of_rook_of_king || id == ChessId.pawn_black_of_rook_of_queen || id == ChessId.pawn_black_of_knight_of_king || id == ChessId.pawn_black_of_knight_of_queen;
public static bool IsKnight(this ChessId id) => id == ChessId.knight_white_of_king || id == ChessId.knight_white_of_queen || id == ChessId.knight_black_of_king || id == ChessId.knight_black_of_queen || id == ChessId.knight_white_of_pawn_of_rook_of_queen || id == ChessId.knight_white_of_pawn_of_knight_of_queen || id == ChessId.knight_white_of_pawn_of_bishop_of_queen || id == ChessId.knight_white_of_pawn_of_queen || id == ChessId.knight_white_of_pawn_of_king || id == ChessId.knight_white_of_pawn_of_bishop_of_king || id == ChessId.knight_white_of_pawn_of_knight_of_king || id == ChessId.knight_white_of_pawn_of_rook_of_king || id == ChessId.knight_black_of_pawn_of_rook_of_queen || id == ChessId.knight_black_of_pawn_of_knight_of_queen || id == ChessId.knight_black_of_pawn_of_bishop_of_queen || id == ChessId.knight_black_of_pawn_of_queen || id == ChessId.knight_black_of_pawn_of_king || id == ChessId.knight_black_of_pawn_of_bishop_of_king || id == ChessId.knight_black_of_pawn_of_knight_of_king || id == ChessId.knight_black_of_pawn_of_rook_of_king;
public static ChessId ReplaceByKnight(this ChessId id)
{
switch (id)
{
case ChessId.pawn_white_of_rook_of_queen: return(ChessId.knight_white_of_pawn_of_rook_of_queen);
case ChessId.pawn_white_of_knight_of_queen: return(ChessId.knight_white_of_pawn_of_knight_of_queen);
case ChessId.pawn_white_of_bishop_of_queen: return(ChessId.knight_white_of_pawn_of_bishop_of_queen);
case ChessId.pawn_white_of_queen: return(ChessId.knight_white_of_pawn_of_queen);
case ChessId.pawn_white_of_king: return(ChessId.knight_white_of_pawn_of_king);
case ChessId.pawn_white_of_bishop_of_king: return(ChessId.knight_white_of_pawn_of_bishop_of_king);
case ChessId.pawn_white_of_knight_of_king: return(ChessId.knight_white_of_pawn_of_knight_of_king);
case ChessId.pawn_white_of_rook_of_king: return(ChessId.knight_white_of_pawn_of_rook_of_king);
case ChessId.pawn_black_of_rook_of_queen: return(ChessId.knight_black_of_pawn_of_rook_of_queen);
case ChessId.pawn_black_of_knight_of_queen: return(ChessId.knight_black_of_pawn_of_knight_of_queen);
case ChessId.pawn_black_of_bishop_of_queen: return(ChessId.knight_black_of_pawn_of_bishop_of_queen);
case ChessId.pawn_black_of_queen: return(ChessId.knight_black_of_pawn_of_queen);
case ChessId.pawn_black_of_king: return(ChessId.knight_black_of_pawn_of_king);
case ChessId.pawn_black_of_bishop_of_king: return(ChessId.knight_black_of_pawn_of_bishop_of_king);
case ChessId.pawn_black_of_knight_of_king: return(ChessId.knight_black_of_pawn_of_knight_of_king);
case ChessId.pawn_black_of_rook_of_king: return(ChessId.knight_black_of_pawn_of_rook_of_king);
default: return(ChessId.invalid);
}
}
public Bishop(ChessId id, int x, int y) : base(id, x, y)
{
}
public King(ChessId id, int x, int y) : base(id, x, y)
{
}
protected ChessPiece(ChessId id, int x, int y)
{
Id = id;
X = x;
Y = y;
}
public static bool IsBishop(this ChessId id) => id == ChessId.bishop_white_of_king || id == ChessId.bishop_white_of_queen || id == ChessId.bishop_black_of_king || id == ChessId.bishop_black_of_queen;
public static bool IsKing(this ChessId id) => id == ChessId.king_white || id == ChessId.king_black;
public Queen(ChessId id, int x, int y) : base(id, x, y)
{
}
public Knight(ChessId id, int x, int y) : base(id, x, y)
{
}
public Rook(ChessId id, int x, int y) : base(id, x, y)
{
}
public static bool IsRook(this ChessId id) => id == ChessId.rook_white_of_king || id == ChessId.rook_white_of_queen || id == ChessId.rook_black_of_king || id == ChessId.rook_black_of_queen;
public Pawn(ChessId id, int x, int y) : base(id, x, y)
{
}
public static int ToInt(this ChessId chessId) => (int)chessId;
