Raise penalty for knight attacked by pawn

[stockfish] / src / movegen.h

diff --git a/src/movegen.h b/src/movegen.h
index 991b0de30294e4eac09f07c696f2e0eedc3849e7..62a121d7d291629e37aeebe32afe32fbc29776c6 100644 (file)
--- a/src/movegen.h
+++ b/src/movegen.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) 2008-2009 Marco Costalba
+  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
@@ -17,28 +17,51 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-
-#if !defined(MOVEGEN_H_INCLUDED)
+#ifndef MOVEGEN_H_INCLUDED
 #define MOVEGEN_H_INCLUDED
 
-////
-//// Includes
-////
+#include "types.h"
+
+class Position;
+
+enum GenType {
+  CAPTURES,
+  QUIETS,
+  QUIET_CHECKS,
+  EVASIONS,
+  NON_EVASIONS,
+  LEGAL
+};
+
+struct ExtMove {
+  Move move;
+  Value value;
+};
 
-#include "position.h"
+inline bool operator<(const ExtMove& f, const ExtMove& s) {
+  return f.value < s.value;
+}
 
+template<GenType>
+ExtMove* generate(const Position& pos, ExtMove* moveList);
 
-////
-//// Prototypes
-////
+/// 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 {
 
-extern int generate_captures(const Position& pos, MoveStack* mlist);
-extern int generate_noncaptures(const Position& pos, MoveStack* mlist);
-extern int generate_non_capture_checks(const Position& pos, MoveStack* mlist, Bitboard dc);
-extern int generate_evasions(const Position& pos, MoveStack* mlist, Bitboard pinned);
-extern int generate_legal_moves(const Position& pos, MoveStack* mlist);
-extern bool move_is_legal(const Position& pos, const Move m, Bitboard pinned);
-extern bool move_is_legal(const Position& pos, const Move m);
+  explicit MoveList(const Position& pos) : cur(moveList), last(generate<T>(pos, moveList)) { last->move = MOVE_NONE; }
+  void operator++() { ++cur; }
+  Move operator*() const { return cur->move; }
+  size_t size() const { return last - moveList; }
+  bool contains(Move m) const {
+    for (const ExtMove* it(moveList); it != last; ++it) if (it->move == m) return true;
+    return false;
+  }
 
+private:
+  ExtMove moveList[MAX_MOVES];
+  ExtMove *cur, *last;
+};
 
-#endif // !defined(MOVEGEN_H_INCLUDED)
+#endif // #ifndef MOVEGEN_H_INCLUDED