X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmaterial.h;h=f05541cc3b24e6fd52c1c9265ce69d09048ecdd6;hp=751edec90889de2f295751855268db15105702ac;hb=d3091971b789b4be4c56fdf608eae33c5c54bbd4;hpb=9a1d5f0f1d8a12a85b198688d4f1d636a146eb7a diff --git a/src/material.h b/src/material.h index 751edec9..f05541cc 100644 --- a/src/material.h +++ b/src/material.h @@ -1,7 +1,7 @@ /* Stockfish, a UCI chess playing engine derived from Glaurung 2.1 Copyright (C) 2004-2008 Tord Romstad (Glaurung author) - Copyright (C) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad + Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, 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 @@ -17,7 +17,7 @@ along with this program. If not, see . */ -#if !defined(MATERIAL_H_INCLUDED) +#ifndef MATERIAL_H_INCLUDED #define MATERIAL_H_INCLUDED #include "endgame.h" @@ -39,39 +39,36 @@ namespace Material { struct Entry { Score material_value() const { return make_score(value, value); } - int space_weight() const { return spaceWeight; } + Score space_weight() const { return spaceWeight; } Phase game_phase() const { return gamePhase; } bool specialized_eval_exists() const { return evaluationFunction != NULL; } - Value evaluate(const Position& p) const { return (*evaluationFunction)(p); } - ScaleFactor scale_factor(const Position& pos, Color c) const; + Value evaluate(const Position& pos) const { return (*evaluationFunction)(pos); } + + // scale_factor takes a position and a color as input, and returns a scale factor + // for the given color. We have to provide the position in addition to the color, + // because the scale factor need not be a constant: It can also be a function + // which should be applied to the position. For instance, in KBP vs K endgames, + // a scaling function for draws with rook pawns and wrong-colored bishops. + + ScaleFactor scale_factor(const Position& pos, Color c) const { + + return !scalingFunction[c] || (*scalingFunction[c])(pos) == SCALE_FACTOR_NONE + ? ScaleFactor(factor[c]) : (*scalingFunction[c])(pos); + } Key key; int16_t value; uint8_t factor[COLOR_NB]; EndgameBase* evaluationFunction; EndgameBase* scalingFunction[COLOR_NB]; - int spaceWeight; + Score spaceWeight; Phase gamePhase; }; typedef HashTable Table; Entry* probe(const Position& pos, Table& entries, Endgames& endgames); -Phase game_phase(const Position& pos); - -/// Material::scale_factor takes a position and a color as input, and -/// returns a scale factor for the given color. We have to provide the -/// position in addition to the color, because the scale factor need not -/// to be a constant: It can also be a function which should be applied to -/// the position. For instance, in KBP vs K endgames, a scaling function -/// which checks for draws with rook pawns and wrong-colored bishops. - -inline ScaleFactor Entry::scale_factor(const Position& pos, Color c) const { - - return !scalingFunction[c] || (*scalingFunction[c])(pos) == SCALE_FACTOR_NONE - ? ScaleFactor(factor[c]) : (*scalingFunction[c])(pos); -} -} +} // namespace Material -#endif // !defined(MATERIAL_H_INCLUDED) +#endif // #ifndef MATERIAL_H_INCLUDED