X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.h;h=9b7ce5a48b3ac8b022d95b5cb5da495cb450de6a;hp=1a7149070f3c0640ab8b87e56a3f5df14140eec3;hb=6a1707889c19bf37a0ef84fb67ffc57e6168e34d;hpb=e0215f3222d4f6c09492633854a41aaa131c38e0

diff --git a/src/position.h b/src/position.h
index 1a714907..9b7ce5a4 100644
--- a/src/position.h
+++ b/src/position.h
@@ -41,8 +41,8 @@ struct CheckInfo {
     explicit CheckInfo(const Position&);
 
     Bitboard dcCandidates;
+    Bitboard pinned;
     Bitboard checkSq[8];
-    Square ksq;
 };
 
 /// Castle rights, encoded as bit fields
@@ -187,9 +187,9 @@ public:
   // Properties of moves
   bool pl_move_is_legal(Move m, Bitboard pinned) const;
   bool move_is_pl(const Move m) const;
-  bool move_gives_check(Move m) const;
   bool move_gives_check(Move m, const CheckInfo& ci) const;
   bool move_is_capture(Move m) const;
+  bool move_is_capture_or_promotion(Move m) const;
   bool move_is_passed_pawn_push(Move m) const;
   bool move_attacks_square(Move m, Square s) const;
 
@@ -213,6 +213,7 @@ public:
   // Static exchange evaluation
   int see(Move m) const;
   int see_sign(Move m) const;
+  static int see_value(PieceType pt);
 
   // Accessing hash keys
   Key get_key() const;
@@ -246,9 +247,8 @@ public:
   // Position consistency check, for debugging
   bool is_ok(int* failedStep = NULL) const;
 
-  // Static member functions
-  static void init_zobrist();
-  static void init_piece_square_tables();
+  // Global initialization
+  static void init();
 
 private:
 
@@ -256,8 +256,8 @@ private:
   void clear();
   void detach();
   void put_piece(Piece p, Square s);
-  void do_allow_oo(Color c);
-  void do_allow_ooo(Color c);
+  void set_castle_kingside(Color c);
+  void set_castle_queenside(Color c);
   bool set_castling_rights(char token);
   bool move_is_pl_slow(const Move m) const;
 
@@ -405,16 +405,24 @@ inline Square Position::king_square(Color c) const {
   return pieceList[c][KING][0];
 }
 
-inline bool Position::can_castle_kingside(Color side) const {
-  return st->castleRights & (1+int(side));
+inline bool Position::can_castle_kingside(Color c) const {
+  return st->castleRights & (WHITE_OO << c);
 }
 
-inline bool Position::can_castle_queenside(Color side) const {
-  return st->castleRights & (4+4*int(side));
+inline bool Position::can_castle_queenside(Color c) const {
+  return st->castleRights & (WHITE_OOO << c);
 }
 
-inline bool Position::can_castle(Color side) const {
-  return can_castle_kingside(side) || can_castle_queenside(side);
+inline bool Position::can_castle(Color c) const {
+  return st->castleRights & ((WHITE_OO | WHITE_OOO) << c);
+}
+
+inline void Position::set_castle_kingside(Color c) {
+  st->castleRights |= (WHITE_OO << c);
+}
+
+inline void Position::set_castle_queenside(Color c) {
+  st->castleRights |= (WHITE_OOO << c);
 }
 
 inline Square Position::initial_kr_square(Color c) const {
@@ -466,6 +474,10 @@ inline bool Position::square_is_weak(Square s, Color c) const {
   return !(pieces(PAWN, opposite_color(c)) & attack_span_mask(c, s));
 }
 
+inline int Position::see_value(PieceType pt) {
+  return seeValues[pt];
+}
+
 inline Key Position::get_key() const {
   return st->key;
 }
@@ -523,10 +535,18 @@ inline bool Position::is_chess960() const {
   return chess960;
 }
 
+inline bool Position::move_is_capture_or_promotion(Move m) const {
+
+  assert(m != MOVE_NONE && m != MOVE_NULL);
+  return move_is_special(m) ? !move_is_castle(m) : !square_is_empty(move_to(m));
+}
+
 inline bool Position::move_is_capture(Move m) const {
 
-  assert (m != MOVE_NONE && m != MOVE_NULL);
-  return !move_is_special(m) ? !square_is_empty(move_to(m)) : move_is_ep(m);
+  assert(m != MOVE_NONE && m != MOVE_NULL);
+
+  // Note that castle is coded as "king captures the rook"
+  return (!square_is_empty(move_to(m)) && !move_is_castle(m)) || move_is_ep(m);
 }
 
 inline PieceType Position::captured_piece_type() const {
@@ -537,12 +557,4 @@ inline int Position::thread() const {
   return threadID;
 }
 
-inline void Position::do_allow_oo(Color c) {
-  st->castleRights |= (1 + int(c));
-}
-
-inline void Position::do_allow_ooo(Color c) {
-  st->castleRights |= (4 + 4*int(c));
-}
-
 #endif // !defined(POSITION_H_INCLUDED)