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Retire seeValues[] and move PieceValue[] out of Position

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No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2011-06-26 10:16:31 +01:00
parent be2925b3c5
commit 351ef5c85b
6 changed files with 27 additions and 41 deletions
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src/search.cpp
+5 -5
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@@ -318,7 +318,7 @@ namespace {
if ( captureOrPromotion
&& pos.type_of_piece_on(move_to(m)) != PAWN
&& ( pos.non_pawn_material(WHITE) + pos.non_pawn_material(BLACK)
- pos.midgame_value_of_piece_on(move_to(m)) == VALUE_ZERO)
- piece_value_midgame(pos.piece_on(move_to(m))) == VALUE_ZERO)
&& !move_is_special(m))
{
result += PawnEndgameExtension[PvNode];
@@ -916,7 +916,7 @@ namespace {
assert(rdepth >= ONE_PLY);
MovePicker mp(pos, ttMove, H, Position::see_value(pos.captured_piece_type()));
MovePicker mp(pos, ttMove, H, pos.captured_piece_type());
CheckInfo ci(pos);
while ((move = mp.get_next_move()) != MOVE_NONE)
@@ -1412,7 +1412,7 @@ split_point_start: // At split points actual search starts from here
&& !pos.move_is_passed_pawn_push(move))
{
futilityValue = futilityBase
+ pos.endgame_value_of_piece_on(move_to(move))
+ piece_value_endgame(pos.piece_on(move_to(move)))
+ (move_is_ep(move) ? PawnValueEndgame : VALUE_ZERO);
if (futilityValue < alpha)
@@ -1540,7 +1540,7 @@ split_point_start: // At split points actual search starts from here
while (b)
{
victimSq = pop_1st_bit(&b);
futilityValue = futilityBase + pos.endgame_value_of_piece_on(victimSq);
futilityValue = futilityBase + piece_value_endgame(pos.piece_on(victimSq));
// Note that here we generate illegal "double move"!
if ( futilityValue >= beta
@@ -1665,7 +1665,7 @@ split_point_start: // At split points actual search starts from here
// Case 2: If the threatened piece has value less than or equal to the
// value of the threatening piece, don't prune moves which defend it.
if ( pos.move_is_capture(threat)
&& ( pos.midgame_value_of_piece_on(tfrom) >= pos.midgame_value_of_piece_on(tto)
&& ( piece_value_midgame(pos.piece_on(tfrom)) >= piece_value_midgame(pos.piece_on(tto))
|| pos.type_of_piece_on(tfrom) == KING)
&& pos.move_attacks_square(m, tto))
return true;