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Retire generate_king_moves()

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We have only one call place so inline its content.
BTW, function is already declared as FORCE_INLINE.

Also some small refactoring while there.

No functional change.
This commit is contained in:
Marco Costalba 2013-01-26 22:07:28 +01:00
parent 7062db7cb2
commit bd87ab9ff5
1 changed files with 23 additions and 33 deletions
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56
src/movegen.cpp
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@ -249,41 +249,38 @@ namespace {
}
FORCE_INLINE MoveStack* generate_king_moves(const Position& pos, MoveStack* mlist,
Color us, Bitboard target) {
Square from = pos.king_square(us);
Bitboard b = pos.attacks_from<KING>(from) & target;
SERIALIZE(b);
return mlist;
}
template<GenType Type> FORCE_INLINE
MoveStack* generate_all_moves(const Position& pos, MoveStack* mlist, Color us,
Bitboard target, const CheckInfo* ci = NULL) {
MoveStack* generate_all(const Position& pos, MoveStack* mlist, Color us,
Bitboard target, const CheckInfo* ci = NULL) {
const bool Checks = Type == QUIET_CHECKS;
mlist = (us == WHITE ? generate_pawn_moves<WHITE, Type>(pos, mlist, target, ci)
: generate_pawn_moves<BLACK, Type>(pos, mlist, target, ci));
mlist = generate_moves<KNIGHT, Type == QUIET_CHECKS>(pos, mlist, us, target, ci);
mlist = generate_moves<BISHOP, Type == QUIET_CHECKS>(pos, mlist, us, target, ci);
mlist = generate_moves<ROOK, Type == QUIET_CHECKS>(pos, mlist, us, target, ci);
mlist = generate_moves<QUEEN, Type == QUIET_CHECKS>(pos, mlist, us, target, ci);
mlist = generate_moves<KNIGHT, Checks>(pos, mlist, us, target, ci);
mlist = generate_moves<BISHOP, Checks>(pos, mlist, us, target, ci);
mlist = generate_moves<ROOK, Checks>(pos, mlist, us, target, ci);
mlist = generate_moves<QUEEN, Checks>(pos, mlist, us, target, ci);
if (Type != QUIET_CHECKS && Type != EVASIONS)
mlist = generate_king_moves(pos, mlist, us, target);
{
Square from = pos.king_square(us);
Bitboard b = pos.attacks_from<KING>(from) & target;
SERIALIZE(b);
}
if (Type != CAPTURES && Type != EVASIONS && pos.can_castle(us))
{
if (pos.is_chess960())
{
mlist = generate_castle<KING_SIDE, Type == QUIET_CHECKS, true>(pos, mlist, us);
mlist = generate_castle<QUEEN_SIDE, Type == QUIET_CHECKS, true>(pos, mlist, us);
mlist = generate_castle<KING_SIDE, Checks, true>(pos, mlist, us);
mlist = generate_castle<QUEEN_SIDE, Checks, true>(pos, mlist, us);
}
else
{
mlist = generate_castle<KING_SIDE, Type == QUIET_CHECKS, false>(pos, mlist, us);
mlist = generate_castle<QUEEN_SIDE, Type == QUIET_CHECKS, false>(pos, mlist, us);
mlist = generate_castle<KING_SIDE, Checks, false>(pos, mlist, us);
mlist = generate_castle<QUEEN_SIDE, Checks, false>(pos, mlist, us);
}
}
@ -310,18 +307,12 @@ MoveStack* generate(const Position& pos, MoveStack* mlist) {
assert(!pos.checkers());
Color us = pos.side_to_move();
Bitboard target;
if (Type == CAPTURES)
target = pos.pieces(~us);
Bitboard target = Type == CAPTURES ? pos.pieces(~us)
: Type == QUIETS ? ~pos.pieces()
: Type == NON_EVASIONS ? ~pos.pieces(us) : 0;
else if (Type == QUIETS)
target = ~pos.pieces();
else if (Type == NON_EVASIONS)
target = ~pos.pieces(us);
return generate_all_moves<Type>(pos, mlist, us, target);
return generate_all<Type>(pos, mlist, us, target);
}
// Explicit template instantiations
@ -337,7 +328,6 @@ MoveStack* generate<QUIET_CHECKS>(const Position& pos, MoveStack* mlist) {
assert(!pos.checkers());
Color us = pos.side_to_move();
CheckInfo ci(pos);
Bitboard dc = ci.dcCandidates;
@ -357,7 +347,7 @@ MoveStack* generate<QUIET_CHECKS>(const Position& pos, MoveStack* mlist) {
SERIALIZE(b);
}
return generate_all_moves<QUIET_CHECKS>(pos, mlist, us, ~pos.pieces(), &ci);
return generate_all<QUIET_CHECKS>(pos, mlist, pos.side_to_move(), ~pos.pieces(), &ci);
}
@ -419,7 +409,7 @@ MoveStack* generate<EVASIONS>(const Position& pos, MoveStack* mlist) {
// Generate blocking evasions or captures of the checking piece
Bitboard target = between_bb(checksq, ksq) | pos.checkers();
return generate_all_moves<EVASIONS>(pos, mlist, us, target);
return generate_all<EVASIONS>(pos, mlist, us, target);
}