X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftypes.h;h=6af0368720313d4c8cb7260566a92726f5256daa;hp=c9c988bae190c49a17f3e1c670c3fdba77ee7ba2;hb=7756344d5d2b93970e7cd423f8cbf6fb1da11b74;hpb=4d22d3e52d561b9c0c7aeacee3df5d1b762f0a38

diff --git a/src/types.h b/src/types.h
index c9c988ba..6af03687 100644
--- a/src/types.h
+++ b/src/types.h
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -101,7 +101,7 @@ typedef uint64_t Key;
 typedef uint64_t Bitboard;
 
 constexpr int MAX_MOVES = 256;
-constexpr int MAX_PLY   = 128;
+constexpr int MAX_PLY   = 246;
 
 /// A move needs 16 bits to be stored
 ///
@@ -131,24 +131,20 @@ enum Color {
   WHITE, BLACK, COLOR_NB = 2
 };
 
-enum CastlingSide {
-  KING_SIDE, QUEEN_SIDE, CASTLING_SIDE_NB = 2
-};
-
-enum CastlingRight {
+enum CastlingRights {
   NO_CASTLING,
   WHITE_OO,
   WHITE_OOO = WHITE_OO << 1,
   BLACK_OO  = WHITE_OO << 2,
   BLACK_OOO = WHITE_OO << 3,
-  ANY_CASTLING = WHITE_OO | WHITE_OOO | BLACK_OO | BLACK_OOO,
-  CASTLING_RIGHT_NB = 16
-};
 
-template<Color C, CastlingSide S> struct MakeCastling {
-  static constexpr CastlingRight
-  right = C == WHITE ? S == QUEEN_SIDE ? WHITE_OOO : WHITE_OO
-                     : S == QUEEN_SIDE ? BLACK_OOO : BLACK_OO;
+  KING_SIDE      = WHITE_OO  | BLACK_OO,
+  QUEEN_SIDE     = WHITE_OOO | BLACK_OOO,
+  WHITE_CASTLING = WHITE_OO  | WHITE_OOO,
+  BLACK_CASTLING = BLACK_OO  | BLACK_OOO,
+  ANY_CASTLING   = WHITE_CASTLING | BLACK_CASTLING,
+
+  CASTLING_RIGHT_NB = 16
 };
 
 enum Phase {
@@ -182,11 +178,11 @@ enum Value : int {
   VALUE_MATE_IN_MAX_PLY  =  VALUE_MATE - 2 * MAX_PLY,
   VALUE_MATED_IN_MAX_PLY = -VALUE_MATE + 2 * MAX_PLY,
 
-  PawnValueMg   = 142,   PawnValueEg   = 207,
-  KnightValueMg = 784,   KnightValueEg = 868,
-  BishopValueMg = 828,   BishopValueEg = 916,
-  RookValueMg   = 1286,  RookValueEg   = 1378,
-  QueenValueMg  = 2528,  QueenValueEg  = 2698,
+  PawnValueMg   = 128,   PawnValueEg   = 213,
+  KnightValueMg = 782,   KnightValueEg = 865,
+  BishopValueMg = 830,   BishopValueEg = 918,
+  RookValueMg   = 1289,  RookValueEg   = 1378,
+  QueenValueMg  = 2529,  QueenValueEg  = 2687,
 
   MidgameLimit  = 15258, EndgameLimit  = 3915
 };
@@ -215,8 +211,9 @@ enum Depth : int {
   DEPTH_QS_NO_CHECKS  = -1 * ONE_PLY,
   DEPTH_QS_RECAPTURES = -5 * ONE_PLY,
 
-  DEPTH_NONE = -6 * ONE_PLY,
-  DEPTH_MAX  = MAX_PLY * ONE_PLY
+  DEPTH_NONE   = -6 * ONE_PLY,
+  DEPTH_OFFSET = DEPTH_NONE,
+  DEPTH_MAX    = MAX_PLY * ONE_PLY
 };
 
 static_assert(!(ONE_PLY & (ONE_PLY - 1)), "ONE_PLY is not a power of 2");
@@ -292,7 +289,6 @@ inline T& operator--(T& d) { return d = T(int(d) - 1); }
 
 #define ENABLE_FULL_OPERATORS_ON(T)                                \
 ENABLE_BASE_OPERATORS_ON(T)                                        \
-ENABLE_INCR_OPERATORS_ON(T)                                        \
 constexpr T operator*(int i, T d) { return T(i * int(d)); }        \
 constexpr T operator*(T d, int i) { return T(int(d) * i); }        \
 constexpr T operator/(T d, int i) { return T(int(d) / i); }        \
@@ -306,7 +302,6 @@ ENABLE_FULL_OPERATORS_ON(Direction)
 
 ENABLE_INCR_OPERATORS_ON(PieceType)
 ENABLE_INCR_OPERATORS_ON(Piece)
-ENABLE_INCR_OPERATORS_ON(Color)
 ENABLE_INCR_OPERATORS_ON(Square)
 ENABLE_INCR_OPERATORS_ON(File)
 ENABLE_INCR_OPERATORS_ON(Rank)
@@ -350,6 +345,11 @@ inline Score operator*(Score s, int i) {
   return result;
 }
 
+/// Multiplication of a Score by an boolean
+inline Score operator*(Score s, bool b) {
+  return Score(int(s) * int(b));
+}
+
 constexpr Color operator~(Color c) {
   return Color(c ^ BLACK); // Toggle color
 }
@@ -366,8 +366,12 @@ constexpr Piece operator~(Piece pc) {
   return Piece(pc ^ 8); // Swap color of piece B_KNIGHT -> W_KNIGHT
 }
 
-constexpr CastlingRight operator|(Color c, CastlingSide s) {
-  return CastlingRight(WHITE_OO << ((s == QUEEN_SIDE) + 2 * c));
+inline File map_to_queenside(File f) {
+  return std::min(f, File(FILE_H - f)); // Map files ABCDEFGH to files ABCDDCBA
+}
+
+constexpr CastlingRights operator&(Color c, CastlingRights cr) {
+  return CastlingRights((c == WHITE ? WHITE_CASTLING : BLACK_CASTLING) & cr);
 }
 
 constexpr Value mate_in(int ply) {
@@ -419,11 +423,6 @@ constexpr Rank relative_rank(Color c, Square s) {
   return relative_rank(c, rank_of(s));
 }
 
-inline bool opposite_colors(Square s1, Square s2) {
-  int s = int(s1) ^ int(s2);
-  return ((s >> 3) ^ s) & 1;
-}
-
 constexpr Direction pawn_push(Color c) {
   return c == WHITE ? NORTH : SOUTH;
 }
@@ -452,6 +451,10 @@ constexpr Move make_move(Square from, Square to) {
   return Move((from << 6) + to);
 }
 
+constexpr Move reverse_move(Move m) {
+  return make_move(to_sq(m), from_sq(m));
+}
+
 template<MoveType T>
 constexpr Move make(Square from, Square to, PieceType pt = KNIGHT) {
   return Move(T + ((pt - KNIGHT) << 12) + (from << 6) + to);