X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmovepick.h;h=0ac4bb6cd206799c11504f51194c470daa20101a;hp=e0d6ca53ca1b091e875e5b5ac88da0cc153c1f92;hb=3b1e64ab72cb2373b9e675ebcc8a1f7c94c71dfd;hpb=683e6dc6566719f8737fad9bc30580bb0b4d8d20 diff --git a/src/movepick.h b/src/movepick.h index e0d6ca53..0ac4bb6c 100644 --- a/src/movepick.h +++ b/src/movepick.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 Marco Costalba + Copyright (C) 2008-2009 Marco Costalba Stockfish is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -37,6 +37,8 @@ struct EvalInfo; struct SearchStack; +extern SearchStack EmptySearchStack; + /// MovePicker is a class which is used to pick one legal move at a time from /// the current position. It is initialized with a Position object and a few /// moves we have reason to believe are good. The most important method is @@ -47,6 +49,8 @@ struct SearchStack; class MovePicker { + MovePicker& operator=(const MovePicker&); // Silence a warning under MSVC + public: enum MovegenPhase { @@ -63,12 +67,12 @@ public: PH_STOP }; - MovePicker(const Position& p, bool pvnode, Move ttm, const SearchStack& ss, Depth d, EvalInfo* ei = NULL); + MovePicker(const Position& p, bool pvnode, Move ttm, const SearchStack& ss, Depth d); Move get_next_move(); Move get_next_move(Lock &lock); int number_of_moves() const; int current_move_score() const; - MovegenPhase current_move_type() const; + Bitboard discovered_check_candidates() const; static void init_phase_table(); @@ -78,11 +82,10 @@ private: void score_evasions(); void score_qcaptures(); Move pick_move_from_list(); - int find_best_index(); - int find_best_index(Bitboard* squares, int values[]); const Position& pos; Move ttMove, mateKiller, killer1, killer2; + Bitboard pinned, dc; MoveStack moves[256], badCaptures[64]; bool pvNode; Depth depth; @@ -103,8 +106,15 @@ private: /// a single reply to check. inline int MovePicker::number_of_moves() const { - return numOfMoves; } +/// MovePicker::discovered_check_candidates() returns a bitboard containing +/// all pieces which can possibly give discovered check. This bitboard is +/// computed by the constructor function. + +inline Bitboard MovePicker::discovered_check_candidates() const { + return dc; +} + #endif // !defined(MOVEPICK_H_INCLUDED)