template<bool SkipRepetition> bool is_draw() const;
// Number of plies from starting position
- int full_moves() const;
+ int startpos_ply_counter() const;
// Other properties of the position
bool opposite_colored_bishops() const;
void put_piece(Piece p, Square s);
void set_castle(int f, Square ksq, Square rsq);
void set_castling_rights(char token);
- bool move_is_pl_slow(const Move m) const;
+ bool move_is_legal(const Move m) const;
// Helper functions for doing and undoing moves
void do_capture_move(Key& key, PieceType capture, Color them, Square to, bool ep);
&& pawn_is_passed(c, move_to(m));
}
-inline int Position::full_moves() const {
- return fullMoves;
+inline int Position::startpos_ply_counter() const {
+ return Max(2 * (fullMoves - 1), 0) + int(sideToMove == BLACK);
}
inline bool Position::opposite_colored_bishops() const {
inline bool Position::move_is_capture_or_promotion(Move m) const {
- assert(m != MOVE_NONE && m != MOVE_NULL);
+ assert(move_is_ok(m));
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);
-
// Note that castle is coded as "king captures the rook"
+ assert(move_is_ok(m));
return (!square_is_empty(move_to(m)) && !move_is_castle(m)) || move_is_ep(m);
}