X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.h;h=c0c7e92997186b0055f3ae04fdf8ed7455825604;hp=0a6ab136156577d577d840ad6b95694a514c155a;hb=b5d5646c840d63710552fdaf2521a054dd3b8a18;hpb=22ede4442cd285d7365b9497c3be65fb2c66b4be

diff --git a/src/position.h b/src/position.h
index 0a6ab136..c0c7e929 100644
--- a/src/position.h
+++ b/src/position.h
@@ -17,35 +17,19 @@
   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-
 #if !defined(POSITION_H_INCLUDED)
 #define POSITION_H_INCLUDED
 
-////
-//// Includes
-////
-
 #include "bitboard.h"
-#include "color.h"
 #include "move.h"
-#include "piece.h"
-#include "square.h"
-#include "value.h"
-
-
-////
-//// Constants
-////
+#include "types.h"
 
 /// Maximum number of plies per game (220 should be enough, because the
 /// maximum search depth is 100, and during position setup we reset the
 /// move counter for every non-reversible move).
 const int MaxGameLength = 220;
 
-
-////
-//// Types
-////
+class Position;
 
 /// struct checkInfo is initialized at c'tor time and keeps
 /// info used to detect if a move gives check.
@@ -120,9 +104,6 @@ struct StateInfo {
 
 class Position {
 
-  friend class MaterialInfo;
-  friend class EndgameFunctions;
-
   Position(); // No default or copy c'tor allowed
   Position(const Position& pos);
 
@@ -134,11 +115,11 @@ public:
 
   // Constructors
   Position(const Position& pos, int threadID);
-  Position(const std::string& fen, int threadID);
+  Position(const std::string& fen, bool isChess960, int threadID);
 
   // Text input/output
-  void from_fen(const std::string& fen);
-  const std::string to_fen(bool isChess960) const;
+  void from_fen(const std::string& fen, bool isChess960);
+  const std::string to_fen() const;
   void print(Move m = MOVE_NONE) const;
 
   // Copying
@@ -220,7 +201,7 @@ public:
   bool square_is_weak(Square s, Color c) const;
 
   // Doing and undoing moves
-  void detach();
+  void do_setup_move(Move m);
   void do_move(Move m, StateInfo& st);
   void do_move(Move m, StateInfo& st, const CheckInfo& ci, bool moveIsCheck);
   void undo_move(Move m);
@@ -247,24 +228,17 @@ public:
   bool is_mate() const;
   bool is_draw() const;
 
-  // Check if side to move could be mated in one
-  bool has_mate_threat();
-
-  // Number of plies since the last non-reversible move
-  int rule_50_counter() const;
-
+  // Number of plies from starting position
   int startpos_ply_counter() const;
 
   // Other properties of the position
   bool opposite_colored_bishops() const;
   bool has_pawn_on_7th(Color c) const;
+  bool is_chess960() const;
 
   // Current thread ID searching on the position
   int thread() const;
 
-  // Reset the gamePly variable to 0
-  void reset_game_ply();
-  void inc_startpos_ply_counter();
   int64_t nodes_searched() const;
   void set_nodes_searched(int64_t n);
 
@@ -279,6 +253,7 @@ private:
 
   // Initialization helper functions (used while setting up a position)
   void clear();
+  void detach();
   void put_piece(Piece p, Square s);
   void do_allow_oo(Color c);
   void do_allow_ooo(Color c);
@@ -322,6 +297,7 @@ private:
   int castleRightsMask[64];
   StateInfo startState;
   File initialKFile, initialKRFile, initialQRFile;
+  bool chess960;
   int startPosPlyCounter;
   int threadID;
   int64_t nodes;
@@ -339,11 +315,6 @@ private:
   static const Value PieceValueEndgame[17];
 };
 
-
-////
-//// Inline functions
-////
-
 inline int64_t Position::nodes_searched() const {
   return nodes;
 }
@@ -454,12 +425,12 @@ inline Square Position::initial_qr_square(Color c) const {
 
 template<>
 inline Bitboard Position::attacks_from<PAWN>(Square s, Color c) const {
-  return StepAttackBB[piece_of_color_and_type(c, PAWN)][s];
+  return StepAttacksBB[make_piece(c, PAWN)][s];
 }
 
 template<PieceType Piece> // Knight and King and white pawns
 inline Bitboard Position::attacks_from(Square s) const {
-  return StepAttackBB[Piece][s];
+  return StepAttacksBB[Piece][s];
 }
 
 template<>
@@ -510,7 +481,7 @@ inline Key Position::get_material_key() const {
 }
 
 inline Score Position::pst(Color c, PieceType pt, Square s) {
-  return PieceSquareTable[piece_of_color_and_type(c, pt)][s];
+  return PieceSquareTable[make_piece(c, pt)][s];
 }
 
 inline Score Position::pst_delta(Piece piece, Square from, Square to) {
@@ -528,27 +499,26 @@ inline Value Position::non_pawn_material(Color c) const {
 inline bool Position::move_is_passed_pawn_push(Move m) const {
 
   Color c = side_to_move();
-  return   piece_on(move_from(m)) == piece_of_color_and_type(c, PAWN)
+  return   piece_on(move_from(m)) == make_piece(c, PAWN)
         && pawn_is_passed(c, move_to(m));
 }
 
-inline int Position::rule_50_counter() const {
-  return st->rule50;
-}
-
 inline int Position::startpos_ply_counter() const {
   return startPosPlyCounter;
 }
 
 inline bool Position::opposite_colored_bishops() const {
 
-  return   piece_count(WHITE, BISHOP) == 1
-        && piece_count(BLACK, BISHOP) == 1
-        && !same_color_squares(piece_list(WHITE, BISHOP, 0), piece_list(BLACK, BISHOP, 0));
+  return   piece_count(WHITE, BISHOP) == 1 && piece_count(BLACK, BISHOP) == 1
+        && opposite_color_squares(piece_list(WHITE, BISHOP, 0), piece_list(BLACK, BISHOP, 0));
 }
 
 inline bool Position::has_pawn_on_7th(Color c) const {
-  return pieces(PAWN, c) & relative_rank_bb(c, RANK_7);
+  return pieces(PAWN, c) & rank_bb(relative_rank(c, RANK_7));
+}
+
+inline bool Position::is_chess960() const {
+  return chess960;
 }
 
 inline bool Position::move_is_capture(Move m) const {