X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fevaluate.h;h=48b627b9db19f81cc767509c0dc42717f1c87b0a;hb=94bb196;hp=05183a0a5ccb5973fcf917f130c9a04023df04f4;hpb=2e3faae067e31d79f9157074c9e37f4631b8d59f;p=stockfish
diff --git a/src/evaluate.h b/src/evaluate.h
index 05183a0a..48b627b9 100644
--- a/src/evaluate.h
+++ b/src/evaluate.h
@@ -1,17 +1,18 @@
/*
- 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) 2008-2010 Marco Costalba, Joona Kiiski, 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 .
*/
@@ -24,43 +25,48 @@
//// Includes
////
+#include
+
#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
+/// 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
+/// At the moment, this is not utilized very much: The only part of the
/// EvalInfo object which is used by the search is futilityMargin.
+class Position;
struct EvalInfo {
-
- // Middle game and endgame evaluations:
- Value mgValue, egValue;
- // Pointers to material and pawn hash table entries:
- MaterialInfo *mi;
- PawnInfo *pi;
+ EvalInfo() { futilityMargin[0] = futilityMargin[1] = Value(0); }
+
+ // Middle game and endgame evaluations
+ Score value;
+
+ // 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
+ // 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]; }
// kingZone[color] is the zone around the enemy king which is considered
- // by the king safety evaluation. This consists of the squares directly
+ // 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
+ // squares two ranks in front of the king. For instance, if black's king
// is on g8, kingZone[WHITE] is a bitboard containing the squares f8, h8,
// f7, g7, h7, f6, g6 and h6.
Bitboard kingZone[2];
@@ -87,11 +93,11 @@ struct EvalInfo {
Move mateThreat[2];
// Middle game and endgame mobility scores.
- Value mgMobility, egMobility;
+ Score mobility;
- // Extra futility margin. This is added to the standard futility margin
- // in the quiescence search.
- Value futilityMargin;
+ // Extra futility margin. This is added to the standard futility margin
+ // in the quiescence search. One for each color.
+ Value futilityMargin[2];
};
@@ -99,8 +105,7 @@ struct EvalInfo {
//// Prototypes
////
-extern Value evaluate(const Position &pos, EvalInfo &ei, int threadID);
-extern Value quick_evaluate(const Position &pos);
+extern Value evaluate(const Position& pos, EvalInfo& ei, int threadID);
extern void init_eval(int threads);
extern void quit_eval();
extern void read_weights(Color sideToMove);