#endif
-#define Min(x, y) (((x) < (y)) ? (x) : (y))
-#define Max(x, y) (((x) < (y)) ? (y) : (x))
-
////
//// Configuration
////
ONE_PLY = 2,
- DEPTH_ZERO = 0 * ONE_PLY,
- DEPTH_QS_CHECKS = -1 * ONE_PLY,
- DEPTH_QS_NO_CHECKS = -2 * ONE_PLY,
+ DEPTH_ZERO = 0 * ONE_PLY,
+ DEPTH_QS_CHECKS = -1 * ONE_PLY,
+ DEPTH_QS_NO_CHECKS = -2 * ONE_PLY,
+ DEPTH_QS_RECAPTURES = -4 * ONE_PLY,
DEPTH_NONE = -127 * ONE_PLY
};
SCALE_FACTOR_NONE = 255
};
+enum CastleRight {
+ CASTLES_NONE = 0,
+ WHITE_OO = 1,
+ BLACK_OO = 2,
+ WHITE_OOO = 4,
+ BLACK_OOO = 8,
+ ALL_CASTLES = 15
+};
+
/// Score enum keeps a midgame and an endgame value in a single
/// integer (enum), first LSB 16 bits are used to store endgame
const Value QueenValueMidgame = Value(0x9D9);
const Value QueenValueEndgame = Value(0x9FE);
+extern const Value PieceValueMidgame[17];
+extern const Value PieceValueEndgame[17];
+extern int SquareDistance[64][64];
+
inline Value value_mate_in(int ply) {
return VALUE_MATE - ply;
}
return Piece((c << 3) | pt);
}
-inline PieceType type_of_piece(Piece p) {
+inline PieceType type_of(Piece p) {
return PieceType(p & 7);
}
-inline Color color_of_piece(Piece p) {
+inline Color color_of(Piece p) {
return Color(p >> 3);
}
-inline Color opposite_color(Color c) {
+inline Color flip(Color c) {
return Color(c ^ 1);
}
-inline char piece_type_to_char(PieceType pt) {
- static const char ch[] = " PNBRQK";
- return ch[pt];
-}
-
inline Square make_square(File f, Rank r) {
return Square((r << 3) | f);
}
return s >= SQ_A1 && s <= SQ_H8;
}
-inline File square_file(Square s) {
+inline File file_of(Square s) {
return File(s & 7);
}
-inline Rank square_rank(Square s) {
+inline Rank rank_of(Square s) {
return Rank(s >> 3);
}
-inline Square flip_square(Square s) {
+inline Square flip(Square s) {
return Square(s ^ 56);
}
-inline Square flop_square(Square s) {
+inline Square mirror(Square s) {
return Square(s ^ 7);
}
}
inline Rank relative_rank(Color c, Square s) {
- return relative_rank(c, square_rank(s));
+ return relative_rank(c, rank_of(s));
}
-inline SquareColor square_color(Square s) {
- return SquareColor(int(square_rank(s) + s) & 1);
+inline SquareColor color_of(Square s) {
+ return SquareColor(int(rank_of(s) + s) & 1);
}
-inline bool opposite_color_squares(Square s1, Square s2) {
+inline bool opposite_colors(Square s1, Square s2) {
int s = s1 ^ s2;
return ((s >> 3) ^ s) & 1;
}
inline int file_distance(Square s1, Square s2) {
- return abs(square_file(s1) - square_file(s2));
+ return abs(file_of(s1) - file_of(s2));
}
inline int rank_distance(Square s1, Square s2) {
- return abs(square_rank(s1) - square_rank(s2));
+ return abs(rank_of(s1) - rank_of(s2));
}
inline int square_distance(Square s1, Square s2) {
- return Max(file_distance(s1, s2), rank_distance(s1, s2));
+ return SquareDistance[s1][s2];
+}
+
+inline char piece_type_to_char(PieceType pt) {
+ return " PNBRQK"[pt];
}
inline char file_to_char(File f) {
}
inline const std::string square_to_string(Square s) {
- char ch[] = { file_to_char(square_file(s)), rank_to_char(square_rank(s)), 0 };
- return std::string(ch);
+ char ch[] = { file_to_char(file_of(s)), rank_to_char(rank_of(s)), 0 };
+ return ch;
}
inline Square pawn_push(Color c) {