X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.h;h=cccdd25d2f36e311a9376c3a22a8244edac29441;hp=8662f4b302734435653a6c13c751a0af2b75d868;hb=648c7ec25db2040c0af34dd846dfa3f57af5ad0a;hpb=bb751d6c890f5c50c642366d601740366cfae8d0

diff --git a/src/evaluate.h b/src/evaluate.h
index 8662f4b3..cccdd25d 100644
--- a/src/evaluate.h
+++ b/src/evaluate.h
@@ -1,108 +1,39 @@
 /*
-  Glaurung, a UCI chess playing engine.
-  Copyright (C) 2004-2008 Tord Romstad
+  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) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
 
-  Glaurung is free software: you can redistribute it and/or modify
+  Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation, either version 3 of the License, or
   (at your option) any later version.
-  
-  Glaurung is distributed in the hope that it will be useful,
+
+  Stockfish is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
-  
+
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-
-#if !defined(EVALUATE_H_INCLUDED)
+#ifndef EVALUATE_H_INCLUDED
 #define EVALUATE_H_INCLUDED
 
-////
-//// Includes
-////
-
-#include "material.h"
-#include "pawns.h"
-#include "position.h"
-
-
-////
-//// Types
-////
-
-/// The EvalInfo struct contains various information computed and collected
-/// by the evaluation function.  An EvalInfo object is passed as one of the
-/// arguments to the evaluation function, and the search can make use of its
-/// contents to make intelligent search decisions.
-///
-/// At the moment, this is not utilized very much:  The only part of the
-/// EvalInfo object which is used by the search is futilityMargin.
-
-struct EvalInfo {
-  
-  // Middle game and endgame evaluations:
-  Value mgValue, egValue;
-
-  // Pointers to material and pawn hash table entries:
-  MaterialInfo *mi;
-  PawnInfo *pi;
-
-  // attackedBy[color][piece type] is a bitboard representing all squares
-  // attacked by a given color and piece type.  attackedBy[color][0] contains
-  // all squares attacked by the given color.
-  Bitboard attackedBy[2][8];
-  Bitboard attacked_by(Color c) const { return attackedBy[c][0]; }
-  Bitboard attacked_by(Color c, PieceType pt) const { return attackedBy[c][pt]; }
-  // attackZone[color] is the zone around the enemy king which is considered
-  // by the king safety evaluation.  This consists of the squares directly
-  // adjacent to the king, and the three (or two, for a king on an edge file)
-  // squares two ranks in front of the king.  For instance, if black's king
-  // is on g8, attackZone[WHITE] is a bitboard containing the squares f8, h8,
-  // f7, g7, h7, f6, g6 and h6.
-  Bitboard attackZone[2];
-
-  // attackCount[color] is the number of pieces of the given color which
-  // attack a square adjacent to the enemy king.
-  int attackCount[2];
-
-  // attackWeight[color] is the sum of the "weight" of the pieces of the given
-  // color which attack a square adjacent to the enemy king.  The weights of
-  // the individual piece types are given by the variables QueenAttackWeight,
-  // RookAttackWeight, BishopAttackWeight and KnightAttackWeight in
-  // evaluate.cpp.
-  int attackWeight[2];
-
-  // attacked[color] is the number of enemy piece attacks to squares directly
-  // adjacent to the king of the given color.  Pieces which attack more
-  // than one square are counted multiple times.  For instance, if black's
-  // king is on g8 and there's a white knight on g5, this knight adds
-  // 2 to attacked[BLACK].
-  int attacked[2];
-
-  // mateThreat[color] is a move for the given side which gives a direct mate.
-  Move mateThreat[2];
+#include <string>
 
-  // Middle game and endgame mobility scores.
-  Value mgMobility, egMobility;
+#include "types.h"
 
-  // Extra futility margin.  This is added to the standard futility margin
-  // in the quiescence search.  
-  Value futilityMargin;
-};
+class Position;
 
+namespace Eval {
 
-////
-//// Prototypes
-////
+constexpr Value Tempo = Value(28); // Must be visible to search
 
-extern Value evaluate(const Position &pos, EvalInfo &ei, int threadID);
-extern Value quick_evaluate(const Position &pos);
-extern void init_eval(int threads);
-extern void quit_eval();
-extern void read_weights(Color sideToMove);
+std::string trace(const Position& pos);
 
+Value evaluate(const Position& pos);
+}
 
-#endif // !defined(EVALUATE_H_INCLUDED)
+#endif // #ifndef EVALUATE_H_INCLUDED