X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmaterial.h;h=754d05230093ed22db2be7045e46fe0f6811e9fc;hp=023d4497e456f6c5e0494a763f87f8a552260c19;hb=6933f05f4b1b7b1bd2c072029bf5a06cbeac5b0b;hpb=64d29a633066e39b62af5ee0bbf32645994744ec diff --git a/src/material.h b/src/material.h index 023d4497..754d0523 100644 --- a/src/material.h +++ b/src/material.h @@ -28,7 +28,7 @@ namespace Material { /// Material::Entry contains various information about a material configuration. -/// It contains a material balance evaluation, a function pointer to a special +/// It contains a material imbalance evaluation, a function pointer to a special /// endgame evaluation function (which in most cases is NULL, meaning that the /// standard evaluation function will be used), and "scale factors". /// @@ -38,12 +38,23 @@ namespace Material { struct Entry { - Score material_value() const { return make_score(value, value); } + Score imbalance() const { return make_score(value, value); } Score space_weight() const { return spaceWeight; } Phase game_phase() const { return gamePhase; } bool specialized_eval_exists() const { return evaluationFunction != NULL; } Value evaluate(const Position& pos) const { return (*evaluationFunction)(pos); } - ScaleFactor scale_factor(const Position& pos, Color c) const; + + // 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; @@ -57,21 +68,7 @@ struct Entry { 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 -/// 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 // #ifndef MATERIAL_H_INCLUDED