- int file_is_half_open(Color c, File f) const { return halfOpenFiles[c] & (1 << int(f)); }
- int has_open_file_to_left(Color c, File f) const { return halfOpenFiles[c] & ((1 << int(f)) - 1); }
- int has_open_file_to_right(Color c, File f) const { return halfOpenFiles[c] & ~((1 << int(f+1)) - 1); }
+ Bitboard pawn_attacks_span(Color c) const { return pawnAttacksSpan[c]; }
+ int pawn_span(Color c) const { return pawnSpan[c]; }
+ int pawn_asymmetry() const { return asymmetry; }
+
+ int semiopen_file(Color c, File f) const {
+ return semiopenFiles[c] & (1 << f);
+ }
+
+ int semiopen_side(Color c, File f, bool leftSide) const {
+ return semiopenFiles[c] & (leftSide ? (1 << f) - 1 : ~((1 << (f + 1)) - 1));
+ }
+
+ int pawns_on_same_color_squares(Color c, Square s) const {
+ return pawnsOnSquares[c][!!(DarkSquares & s)];
+ }