opelly/Stockfish
1
0
Fork 0
mirror of https://github.com/opelly27/Stockfish.git synced 2026-05-20 02:47:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Small trivial clean-ups, February 2021

Browse Source 
Closes https://github.com/official-stockfish/Stockfish/pull/3329

No functional change
This commit is contained in:
Lolligerhans
2021-01-31 13:46:05 +01:00
committed by Stéphane Nicolet
parent b46813f9b7
commit 40cb0f076a
5 changed files with 19 additions and 21 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/position.cpp
+9 -8
View File
@@ -268,8 +268,8 @@ Position& Position::set(const string& fenStr, bool isChess960, StateInfo* si, Th
enpassant = pawn_attacks_bb(~sideToMove, st->epSquare) & pieces(sideToMove, PAWN)
&& (pieces(~sideToMove, PAWN) & (st->epSquare + pawn_push(~sideToMove)))
&& !(pieces() & (st->epSquare | (st->epSquare + pawn_push(sideToMove))))
&& (file_of(square<KING>(sideToMove)) == file_of(st->epSquare)
|| !(blockers_for_king(sideToMove) & (st->epSquare + pawn_push(~sideToMove))));
&& ( file_of(square<KING>(sideToMove)) == file_of(st->epSquare)
|| !(blockers_for_king(sideToMove) & (st->epSquare + pawn_push(~sideToMove))));
}
// It's necessary for st->previous to be intialized in this way because legality check relies on its existence
@@ -518,8 +518,8 @@ bool Position::legal(Move m) const {
// st->previous->blockersForKing consider capsq as empty.
// If pinned, it has to move along the king ray.
if (type_of(m) == EN_PASSANT)
return !(st->previous->blockersForKing[sideToMove] & from) ||
aligned(from, to, square<KING>(us));
return !(st->previous->blockersForKing[sideToMove] & from)
|| aligned(from, to, square<KING>(us));
// Castling moves generation does not check if the castling path is clear of
// enemy attacks, it is delayed at a later time: now!
@@ -546,8 +546,8 @@ bool Position::legal(Move m) const {
// A non-king move is legal if and only if it is not pinned or it
// is moving along the ray towards or away from the king.
return !(blockers_for_king(us) & from)
|| aligned(from, to, square<KING>(us));
return !(blockers_for_king(us) & from)
|| aligned(from, to, square<KING>(us));
}
@@ -657,8 +657,9 @@ bool Position::gives_check(Move m) const {
// So the King must be in the same rank as fromsq to consider this possibility.
// st->previous->blockersForKing consider capsq as empty.
case EN_PASSANT:
return st->previous->checkersBB || (rank_of(square<KING>(~sideToMove)) == rank_of(from)
&& st->previous->blockersForKing[~sideToMove] & from);
return st->previous->checkersBB
|| ( rank_of(square<KING>(~sideToMove)) == rank_of(from)
&& st->previous->blockersForKing[~sideToMove] & from);
default: //CASTLING
{