X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Fposition.h;h=cc816910a3d0320f8e866f12b041dca0d5549ce4;hb=f148a8f6ccbb57c440910ecfd4845c7f497b5404;hp=71f821b2b3183144849d200242b4250743d71f57;hpb=b638f6b0354ea124dc80e5e38189474d34141e2d;p=stockfish

diff --git a/src/position.h b/src/position.h
index 71f821b2..cc816910 100644
--- a/src/position.h
+++ b/src/position.h
@@ -70,9 +70,9 @@ struct CheckInfo {
 
     CheckInfo(const Position&);
 
-    Square ksq;
     Bitboard dcCandidates;
     Bitboard checkSq[8];
+    Square ksq;
 };
 
 /// Castle rights, encoded as bit fields
@@ -100,13 +100,13 @@ enum Phase {
 
 struct StateInfo {
   Key pawnKey, materialKey;
-  int castleRights, rule50, pliesFromNull;
+  int castleRights, rule50, ply, pliesFromNull;
   Square epSquare;
   Score value;
   Value npMaterial[2];
 
-  Key key;
   PieceType capture;
+  Key key;
   Bitboard checkersBB;
   StateInfo* previous;
 };
@@ -228,9 +228,6 @@ public:
 
   // Information about pawns
   bool pawn_is_passed(Color c, Square s) const;
-  static bool pawn_is_passed(Bitboard theirPawns, Color c, Square s);
-  static bool pawn_is_isolated(Bitboard ourPawns, Square s);
-  static bool pawn_is_doubled(Bitboard ourPawns, Color c, Square s);
 
   // Weak squares
   bool square_is_weak(Square s, Color c) const;
@@ -274,8 +271,9 @@ public:
   bool opposite_colored_bishops() const;
   bool has_pawn_on_7th(Color c) const;
 
-  // Reset the gamePly variable to 0
-  void reset_game_ply();
+  // Game ply information
+  int ply() const;
+  void reset_ply();
 
   // Position consistency check, for debugging
   bool is_ok(int* failedStep = NULL) const;
@@ -293,7 +291,7 @@ private:
   void allow_ooo(Color c);
 
   // Helper functions for doing and undoing moves
-  void do_capture_move(Bitboard& key, PieceType capture, Color them, Square to, bool ep);
+  void do_capture_move(Key& key, PieceType capture, Color them, Square to, bool ep);
   void do_castle_move(Move m);
   void undo_castle_move(Move m);
   void find_checkers();
@@ -326,18 +324,16 @@ private:
 
   // Other info
   Color sideToMove;
-  int gamePly;
   Key history[MaxGameLength];
   int castleRightsMask[64];
-  File initialKFile, initialKRFile, initialQRFile;
   StateInfo startState;
+  File initialKFile, initialKRFile, initialQRFile;
   StateInfo* st;
 
   // Static variables
   static Key zobrist[2][8][64];
   static Key zobEp[64];
   static Key zobCastle[16];
-  static Key zobMaterial[2][8][16];
   static Key zobSideToMove;
   static Score PieceSquareTable[16][64];
   static Key zobExclusion;
@@ -412,8 +408,8 @@ inline int Position::piece_count(Color c, PieceType pt) const {
   return pieceCount[c][pt];
 }
 
-inline Square Position::piece_list(Color c, PieceType pt, int index) const {
-  return pieceList[c][pt][index];
+inline Square Position::piece_list(Color c, PieceType pt, int idx) const {
+  return pieceList[c][pt][idx];
 }
 
 inline const Square* Position::piece_list_begin(Color c, PieceType pt) const {
@@ -485,20 +481,8 @@ inline bool Position::pawn_is_passed(Color c, Square s) const {
   return !(pieces(PAWN, opposite_color(c)) & passed_pawn_mask(c, s));
 }
 
-inline bool Position::pawn_is_passed(Bitboard theirPawns, Color c, Square s) {
-  return !(theirPawns & passed_pawn_mask(c, s));
-}
-
-inline bool Position::pawn_is_isolated(Bitboard ourPawns, Square s) {
-  return !(ourPawns & neighboring_files_bb(s));
-}
-
-inline bool Position::pawn_is_doubled(Bitboard ourPawns, Color c, Square s) {
-  return ourPawns & squares_behind(c, s);
-}
-
 inline bool Position::square_is_weak(Square s, Color c) const {
-  return !(pieces(PAWN, c) & outpost_mask(opposite_color(c), s));
+  return !(pieces(PAWN, opposite_color(c)) & attack_span_mask(c, s));
 }
 
 inline Key Position::get_key() const {
@@ -573,4 +557,8 @@ inline PieceType Position::captured_piece() const {
   return st->capture;
 }
 
+inline int Position::ply() const {
+  return st->ply;
+}
+
 #endif // !defined(POSITION_H_INCLUDED)