/*
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) 2004-2022 The Stockfish developers (see AUTHORS file)
Stockfish is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#ifndef MOVEGEN_H_INCLUDED
#define MOVEGEN_H_INCLUDED
+#include <algorithm>
+
#include "types.h"
+namespace Stockfish {
+
+class Position;
+
enum GenType {
CAPTURES,
QUIETS,
LEGAL
};
-class Position;
+struct ExtMove {
+ Move move;
+ int value;
+
+ operator Move() const { return move; }
+ void operator=(Move m) { move = m; }
+
+ // Inhibit unwanted implicit conversions to Move
+ // with an ambiguity that yields to a compile error.
+ operator float() const = delete;
+};
+
+inline bool operator<(const ExtMove& f, const ExtMove& s) {
+ return f.value < s.value;
+}
template<GenType>
-ExtMove* generate(const Position& pos, ExtMove* mlist);
+ExtMove* generate(const Position& pos, ExtMove* moveList);
-/// The MoveList struct is a simple wrapper around generate(), sometimes comes
-/// handy to use this class instead of the low level generate() function.
+/// The MoveList struct is a simple wrapper around generate(). It sometimes comes
+/// in handy to use this class instead of the low level generate() function.
template<GenType T>
struct MoveList {
- explicit MoveList(const Position& pos) : cur(mlist), last(generate<T>(pos, mlist)) { last->move = MOVE_NONE; }
- void operator++() { cur++; }
- Move operator*() const { return cur->move; }
- size_t size() const { return last - mlist; }
- bool contains(Move m) const {
- for (const ExtMove* it(mlist); it != last; ++it) if (it->move == m) return true;
- return false;
+ explicit MoveList(const Position& pos) : last(generate<T>(pos, moveList)) {}
+ const ExtMove* begin() const { return moveList; }
+ const ExtMove* end() const { return last; }
+ size_t size() const { return last - moveList; }
+ bool contains(Move move) const {
+ return std::find(begin(), end(), move) != end();
}
private:
- ExtMove mlist[MAX_MOVES];
- ExtMove *cur, *last;
+ ExtMove moveList[MAX_MOVES], *last;
};
+} // namespace Stockfish
+
#endif // #ifndef MOVEGEN_H_INCLUDED