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Second take at unifying bitboard representation access

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This patch is built on Tord idea to use functions instead of
templates to access position's bitboards. This has the added advantage
that we don't need fallback functions for cases where the piece
type or the color is a variable and not a constant.

Also added Joona suggestion to workaround request for two types
of pieces like bishop_and_queens() and rook_and_queens().

No functionality or performance change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-09-02 11:57:38 +02:00
parent 76bed11f7b
commit 9f28d8a854
8 changed files with 106 additions and 100 deletions
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10
src/material.cpp
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@@ -171,14 +171,14 @@ MaterialInfo* MaterialInfoTable::get_material_info(const Position& pos) {
mi->evaluationFunction = &EvaluateKKX;
return mi;
}
else if ( pos.pieces<PAWN>() == EmptyBoardBB
&& pos.pieces<ROOK>() == EmptyBoardBB
&& pos.pieces<QUEEN>() == EmptyBoardBB)
else if ( pos.pieces(PAWN) == EmptyBoardBB
&& pos.pieces(ROOK) == EmptyBoardBB
&& pos.pieces(QUEEN) == EmptyBoardBB)
{
// Minor piece endgame with at least one minor piece per side and
// no pawns. Note that the case KmmK is already handled by KXK.
assert((pos.pieces<KNIGHT>(WHITE) | pos.pieces<BISHOP>(WHITE)));
assert((pos.pieces<KNIGHT>(BLACK) | pos.pieces<BISHOP>(BLACK)));
assert((pos.pieces(KNIGHT, WHITE) | pos.pieces(BISHOP, WHITE)));
assert((pos.pieces(KNIGHT, BLACK) | pos.pieces(BISHOP, BLACK)));
if ( pos.piece_count(WHITE, BISHOP) + pos.piece_count(WHITE, KNIGHT) <= 2
&& pos.piece_count(BLACK, BISHOP) + pos.piece_count(BLACK, KNIGHT) <= 2)