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Change NO_PIECE value and shrink PieceValue[]

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This requires changing color_of() definition.

No functional change.
This commit is contained in:
Marco Costalba
2012-10-21 11:49:05 +02:00
parent e304db9d1e
commit e40b06a050
4 changed files with 24 additions and 25 deletions
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8
src/movepick.cpp
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@@ -131,7 +131,7 @@ MovePicker::MovePicker(const Position& p, Move ttm, const History& h, PieceType
phase = PROBCUT;
// In ProbCut we generate only captures better than parent's captured piece
captureThreshold = PieceValue[Mg][pt];
captureThreshold = PieceValue[MG][pt];
ttMove = (ttm && pos.is_pseudo_legal(ttm) ? ttm : MOVE_NONE);
if (ttMove && (!pos.is_capture(ttMove) || pos.see(ttMove) <= captureThreshold))
@@ -165,11 +165,11 @@ void MovePicker::score_captures() {
for (MoveStack* it = moves; it != end; ++it)
{
m = it->move;
it->score = PieceValue[Mg][pos.piece_on(to_sq(m))]
it->score = PieceValue[MG][pos.piece_on(to_sq(m))]
- type_of(pos.piece_moved(m));
if (type_of(m) == PROMOTION)
it->score += PieceValue[Mg][promotion_type(m)];
it->score += PieceValue[MG][promotion_type(m)];
}
}
@@ -200,7 +200,7 @@ void MovePicker::score_evasions() {
if ((seeScore = pos.see_sign(m)) < 0)
it->score = seeScore - History::MaxValue; // Be sure we are at the bottom
else if (pos.is_capture(m))
it->score = PieceValue[Mg][pos.piece_on(to_sq(m))]
it->score = PieceValue[MG][pos.piece_on(to_sq(m))]
- type_of(pos.piece_moved(m)) + History::MaxValue;
else
it->score = H.value(pos.piece_moved(m), to_sq(m));