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76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
/*
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Stockfish, a UCI chess playing engine derived from Glaurung 2.1
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Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
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Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
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Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
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Stockfish is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Stockfish is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MOVEGEN_H_INCLUDED
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#define MOVEGEN_H_INCLUDED
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#include <algorithm>
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#include "types.h"
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class Position;
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enum GenType {
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CAPTURES,
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QUIETS,
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QUIET_CHECKS,
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EVASIONS,
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NON_EVASIONS,
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LEGAL
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};
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struct ExtMove {
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Move move;
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int value;
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operator Move() const { return move; }
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void operator=(Move m) { move = m; }
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// Inhibit unwanted implicit conversions to Move
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// with an ambiguity that yields to a compile error.
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operator float() const = delete;
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};
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inline bool operator<(const ExtMove& f, const ExtMove& s) {
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return f.value < s.value;
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}
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template<GenType>
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ExtMove* generate(const Position& pos, ExtMove* moveList);
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/// The MoveList struct is a simple wrapper around generate(). It sometimes comes
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/// in handy to use this class instead of the low level generate() function.
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template<GenType T>
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struct MoveList {
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explicit MoveList(const Position& pos) : last(generate<T>(pos, moveList)) {}
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const ExtMove* begin() const { return moveList; }
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const ExtMove* end() const { return last; }
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size_t size() const { return last - moveList; }
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bool contains(Move move) const {
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return std::find(begin(), end(), move) != end();
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}
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private:
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ExtMove moveList[MAX_MOVES], *last;
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};
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#endif // #ifndef MOVEGEN_H_INCLUDED
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