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Move game_phase() to material.cpp

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For some reason, although game phase is used
only in material, it is computed in Position.

Move computation to material, where it belongs,
and remove the useless call chain.

No functional change.
This commit is contained in:
Marco Costalba
2017-07-09 11:45:31 +02:00
parent d31f068312
commit e551afbab7
3 changed files with 9 additions and 20 deletions
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13
src/position.cpp
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@@ -450,19 +450,6 @@ const string Position::fen() const {
}
/// Position::game_phase() calculates the game phase interpolating total non-pawn
/// material between endgame and midgame limits.
Phase Position::game_phase() const {
Value npm = st->nonPawnMaterial[WHITE] + st->nonPawnMaterial[BLACK];
npm = std::max(EndgameLimit, std::min(npm, MidgameLimit));
return Phase(((npm - EndgameLimit) * PHASE_MIDGAME) / (MidgameLimit - EndgameLimit));
}
/// Position::slider_blockers() returns a bitboard of all the pieces (both colors)
/// that are blocking attacks on the square 's' from 'sliders'. A piece blocks a
/// slider if removing that piece from the board would result in a position where