X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;ds=inline;f=src%2Fposition.h;h=512313921458cae7d843214644026f2d7399fe25;hb=55948623e7b8ad1fc6624cd06733b16d295eecb8;hp=fb7eb4b90cc79335ade326bcbeae0d59825c1fe6;hpb=76caef8ba1fb4ca0520a8e2b42815d626484e93c;p=stockfish
diff --git a/src/position.h b/src/position.h
index fb7eb4b9..51231392 100644
--- a/src/position.h
+++ b/src/position.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) 2008-2012 Marco Costalba, Joona Kiiski, Tord Romstad
+ Copyright (C) 2008-2013 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
@@ -17,7 +17,7 @@
along with this program. If not, see .
*/
-#if !defined(POSITION_H_INCLUDED)
+#ifndef POSITION_H_INCLUDED
#define POSITION_H_INCLUDED
#include
@@ -52,7 +52,7 @@ struct StateInfo {
Key pawnKey, materialKey;
Value npMaterial[COLOR_NB];
int castleRights, rule50, pliesFromNull;
- Score psqScore;
+ Score psq;
Square epSquare;
Key key;
@@ -95,6 +95,7 @@ public:
Position(const Position& p, Thread* t) { *this = p; thisThread = t; }
Position(const std::string& f, bool c960, Thread* t) { set(f, c960, t); }
Position& operator=(const Position&);
+ static void init();
// Text input/output
void set(const std::string& fen, bool isChess960, Thread* th);
@@ -112,8 +113,8 @@ public:
Square king_square(Color c) const;
Square ep_square() const;
bool is_empty(Square s) const;
- const Square* piece_list(Color c, PieceType pt) const;
- int piece_count(Color c, PieceType pt) const;
+ template int count(Color c) const;
+ template const Square* list(Color c) const;
// Castling
int can_castle(CastleRight f) const;
@@ -158,7 +159,7 @@ public:
void undo_null_move();
// Static exchange evaluation
- int see(Move m) const;
+ int see(Move m, int asymmThreshold = 0) const;
int see_sign(Move m) const;
// Accessing hash keys
@@ -169,7 +170,6 @@ public:
// Incremental piece-square evaluation
Score psq_score() const;
- Score psq_delta(Piece p, Square from, Square to) const;
Value non_pawn_material(Color c) const;
// Other properties of the position
@@ -179,7 +179,7 @@ public:
Thread* this_thread() const;
int64_t nodes_searched() const;
void set_nodes_searched(int64_t n);
- template bool is_draw() const;
+ bool is_draw() const;
// Position consistency check, for debugging
bool pos_is_ok(int* failedStep = NULL) const;
@@ -193,7 +193,7 @@ private:
// Helper functions
void do_castle(Square kfrom, Square kto, Square rfrom, Square rto);
- template Bitboard hidden_checkers() const;
+ Bitboard hidden_checkers(Square ksq, Color c) const;
// Computing hash keys from scratch (for initialization and debugging)
Key compute_key() const;
@@ -273,12 +273,12 @@ inline Bitboard Position::pieces(Color c, PieceType pt1, PieceType pt2) const {
return byColorBB[c] & (byTypeBB[pt1] | byTypeBB[pt2]);
}
-inline int Position::piece_count(Color c, PieceType pt) const {
- return pieceCount[c][pt];
+template inline int Position::count(Color c) const {
+ return pieceCount[c][Pt];
}
-inline const Square* Position::piece_list(Color c, PieceType pt) const {
- return pieceList[c][pt];
+template inline const Square* Position::list(Color c) const {
+ return pieceList[c][Pt];
}
inline Square Position::ep_square() const {
@@ -331,11 +331,11 @@ inline Bitboard Position::checkers() const {
}
inline Bitboard Position::discovered_check_candidates() const {
- return hidden_checkers();
+ return hidden_checkers(king_square(~sideToMove), sideToMove);
}
inline Bitboard Position::pinned_pieces() const {
- return hidden_checkers();
+ return hidden_checkers(king_square(sideToMove), ~sideToMove);
}
inline bool Position::pawn_is_passed(Color c, Square s) const {
@@ -346,10 +346,6 @@ inline Key Position::key() const {
return st->key;
}
-inline Key Position::exclusion_key() const {
- return st->key ^ Zobrist::exclusion;
-}
-
inline Key Position::pawn_key() const {
return st->pawnKey;
}
@@ -358,12 +354,8 @@ inline Key Position::material_key() const {
return st->materialKey;
}
-inline Score Position::psq_delta(Piece p, Square from, Square to) const {
- return pieceSquareTable[p][to] - pieceSquareTable[p][from];
-}
-
inline Score Position::psq_score() const {
- return st->psqScore;
+ return st->psq;
}
inline Value Position::non_pawn_material(Color c) const {
@@ -422,4 +414,4 @@ inline Thread* Position::this_thread() const {
return thisThread;
}
-#endif // !defined(POSITION_H_INCLUDED)
+#endif // #ifndef POSITION_H_INCLUDED