X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fendgame.h;h=d7a7681abd985910b8ddf53254a4ab4394f64dc2;hp=49f39990ba513e6ca8584df55fa9ebadddfe6d9d;hb=9369f4963d9376820cb5ca4bad66b86e67b0a010;hpb=c4533e0d94a273cc10e0530a2953d369c6afbb8e diff --git a/src/endgame.h b/src/endgame.h index 49f39990..d7a7681a 100644 --- a/src/endgame.h +++ b/src/endgame.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) 2008-2015 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 @@ -42,18 +42,17 @@ enum EndgameType { KRKN, // KR vs KN KQKP, // KQ vs KP KQKR, // KQ vs KR - KBBKN, // KBB vs KN - KmmKm, // K and two minors vs K and one or two minors // Scaling functions - SCALE_FUNS, + SCALING_FUNCTIONS, - KBPsK, // KB+pawns vs K - KQKRPs, // KQ vs KR+pawns + KBPsK, // KB and pawns vs K + KQKRPs, // KQ vs KR and pawns KRPKR, // KRP vs KR + KRPKB, // KRP vs KB KRPPKRP, // KRPP vs KRP - KPsK, // King and pawns vs king + KPsK, // K and pawns vs K KBPKB, // KBP vs KB KBPPKB, // KBPP vs KB KBPKN, // KBP vs KN @@ -63,9 +62,9 @@ enum EndgameType { }; -/// Endgame functions can be of two types according if return a Value or a -/// ScaleFactor. Type eg_fun::type equals to either ScaleFactor or Value -/// depending if the template parameter is 0 or 1. +/// Endgame functions can be of two types depending on whether they return a +/// Value or a ScaleFactor. Type eg_fun::type returns either ScaleFactor +/// or Value depending on whether the template parameter is 0 or 1. template struct eg_fun { typedef Value type; }; template<> struct eg_fun<1> { typedef ScaleFactor type; }; @@ -77,26 +76,26 @@ template struct EndgameBase { virtual ~EndgameBase() {} - virtual Color color() const = 0; + virtual Color strong_side() const = 0; virtual T operator()(const Position&) const = 0; }; -template SCALE_FUNS)>::type> +template SCALING_FUNCTIONS)>::type> struct Endgame : public EndgameBase { - explicit Endgame(Color c) : strongerSide(c), weakerSide(~c) {} - Color color() const { return strongerSide; } + explicit Endgame(Color c) : strongSide(c), weakSide(~c) {} + Color strong_side() const { return strongSide; } T operator()(const Position&) const; private: - Color strongerSide, weakerSide; + Color strongSide, weakSide; }; -/// Endgames class stores in two std::map the pointers to endgame evaluation -/// and scaling base objects. Then we use polymorphism to invoke the actual -/// endgame function calling its operator() that is virtual. +/// The Endgames class stores the pointers to endgame evaluation and scaling +/// base objects in two std::map. We use polymorphism to invoke the actual +/// endgame function by calling its virtual operator(). class Endgames { @@ -115,8 +114,9 @@ public: Endgames(); ~Endgames(); - template T probe(Key key, T& eg) - { return eg = map(eg).count(key) ? map(eg)[key] : NULL; } + template T probe(Key key, T& eg) { + return eg = map(eg).count(key) ? map(eg)[key] : NULL; + } }; #endif // #ifndef ENDGAME_H_INCLUDED