VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + MAX_PLY,
VALUE_ENSURE_INTEGER_SIZE_P = INT_MAX,
- VALUE_ENSURE_INTEGER_SIZE_N = INT_MIN
+ VALUE_ENSURE_INTEGER_SIZE_N = INT_MIN,
+
+ Mg = 0, Eg = 1,
+
+ PawnValueMg = 198, PawnValueEg = 258,
+ KnightValueMg = 817, KnightValueEg = 846,
+ BishopValueMg = 836, BishopValueEg = 857,
+ RookValueMg = 1270, RookValueEg = 1278,
+ QueenValueMg = 2521, QueenValueEg = 2558
};
enum PieceType {
#undef ENABLE_OPERATORS_ON
#undef ENABLE_SAFE_OPERATORS_ON
-const Value PawnValueMidgame = Value(198);
-const Value PawnValueEndgame = Value(258);
-const Value KnightValueMidgame = Value(817);
-const Value KnightValueEndgame = Value(846);
-const Value BishopValueMidgame = Value(836);
-const Value BishopValueEndgame = Value(857);
-const Value RookValueMidgame = Value(1270);
-const Value RookValueEndgame = Value(1278);
-const Value QueenValueMidgame = Value(2521);
-const Value QueenValueEndgame = Value(2558);
-
-extern const Value PieceValueMidgame[17]; // Indexed by Piece or PieceType
-extern const Value PieceValueEndgame[17];
-extern int SquareDistance[64][64];
+namespace Zobrist {
+
+ extern Key psq[2][8][64]; // [color][pieceType][square / piece count]
+ extern Key enpassant[8]; // [file]
+ extern Key castle[16]; // [castleRight]
+ extern Key side;
+ extern Key exclusion;
+
+ void init();
+}
+
+CACHE_LINE_ALIGNMENT
+
+extern Score pieceSquareTable[16][64]; // [piece][square]
+extern Value PieceValue[2][18]; // [Mg / Eg][piece / pieceType]
+extern int SquareDistance[64][64]; // [square][square]
struct MoveStack {
Move move;
return SquareDistance[s1][s2];
}
-inline char piece_type_to_char(PieceType pt) {
- return " PNBRQK"[pt];
-}
-
inline char file_to_char(File f) {
return char(f - FILE_A + int('a'));
}
return Move(to | (from << 6));
}
-inline Move make_promotion(Square from, Square to, PieceType pt) {
- return Move(to | (from << 6) | (1 << 14) | ((pt - 2) << 12)) ;
-}
-
-inline Move make_enpassant(Square from, Square to) {
- return Move(to | (from << 6) | (2 << 14));
-}
-
-inline Move make_castle(Square from, Square to) {
- return Move(to | (from << 6) | (3 << 14));
+template<MoveType T>
+inline Move make(Square from, Square to, PieceType pt = KNIGHT) {
+ return Move(to | (from << 6) | T | ((pt - KNIGHT) << 12)) ;
}
inline bool is_ok(Move m) {