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Simplify semiopen_file (#2165) 

This is a non-functional simplification. Since our file_bb handles either Files or Squares, using Square here removes some code. Not likely any performance difference despite the test.

STC
LLR: 2.95 (-2.94,2.94) [-3.00,1.00]
Total: 6081 W: 1444 L: 1291 D: 3346
http://tests.stockfishchess.org/tests/view/5ceb3e2e0ebc5925cf07ab03

Non functional change.
pull/2170/head
protonspring 2019-05-29 02:00:32 -06:00 committed by Marco Costalba
parent 190f38a7c2
commit c645587270
2 changed files with 5 additions and 5 deletions
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4
src/evaluate.cpp
View File

@ -357,8 +357,8 @@ namespace {
score += RookOnPawn * popcount(pos.pieces(Them, PAWN) & PseudoAttacks[ROOK][s]);
// Bonus for rook on an open or semi-open file
if (pos.is_semiopen_file(Us, file_of(s)))
score += RookOnFile[bool(pos.is_semiopen_file(Them, file_of(s)))];
if (pos.is_on_semiopen_file(Us, s))
score += RookOnFile[bool(pos.is_on_semiopen_file(Them, s))];
// Penalty when trapped by the king, even more if the king cannot castle
else if (mob <= 3)

6
src/position.h
View File

@ -96,7 +96,7 @@ public:
template<PieceType Pt> int count() const;
template<PieceType Pt> const Square* squares(Color c) const;
template<PieceType Pt> Square square(Color c) const;
bool is_semiopen_file(Color c, File f) const;
bool is_on_semiopen_file(Color c, Square s) const;
// Castling
int castling_rights(Color c) const;
@ -263,8 +263,8 @@ inline Square Position::ep_square() const {
return st->epSquare;
}
inline bool Position::is_semiopen_file(Color c, File f) const {
return !(pieces(c, PAWN) & file_bb(f));
inline bool Position::is_on_semiopen_file(Color c, Square s) const {
return !(pieces(c, PAWN) & file_bb(s));
}
inline bool Position::can_castle(CastlingRight cr) const {