kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-04-30 08:43:09 +00:00
Code Issues Releases Wiki Activity

simplify opposite_colors

Browse source
This commit is contained in:
protonspring 2018-12-08 10:57:25 -07:00 • committed by Stéphane Nicolet
parent 5c2fbcd09b
commit fefc0c6789
2 changed files with 4 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
src/bitboard.h
View file

@ -135,6 +135,10 @@ constexpr bool more_than_one(Bitboard b) {
return b & (b - 1);
}
inline bool opposite_colors(Square s1, Square s2) {
return bool(DarkSquares & s1) != bool(DarkSquares & s2);
}
/// rank_bb() and file_bb() return a bitboard representing all the squares on
/// the given file or rank.

5
src/types.h
View file

@ -413,11 +413,6 @@ constexpr Rank relative_rank(Color c, Square s) {
return relative_rank(c, rank_of(s));
}
inline bool opposite_colors(Square s1, Square s2) {
int s = int(s1) ^ int(s2);
return ((s >> 3) ^ s) & 1;
}
constexpr Direction pawn_push(Color c) {
return c == WHITE ? NORTH : SOUTH;
}