X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fevaluate.cpp;h=e7af307303ae3fd447e5b46c553d235ef00552ce;hp=73ffcfb053057a6a203674dff264702940f55110;hb=df4b106716f0fb0a5f5887b1cffeb544174008f7;hpb=a98dee783582c84ca2647ca28daad0c9a13d1d35

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 73ffcfb0..e7af3073 100644
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -372,8 +372,8 @@ Value do_evaluate(const Position& pos, EvalInfo& ei) {
   // colored bishop endgames, and use a lower scale for those
   if (   phase < PHASE_MIDGAME
       && pos.opposite_colored_bishops()
-      && (   (factor[WHITE] == SCALE_FACTOR_NORMAL && eg_value(ei.value) > Value(0))
-          || (factor[BLACK] == SCALE_FACTOR_NORMAL && eg_value(ei.value) < Value(0))))
+      && (   (factor[WHITE] == SCALE_FACTOR_NORMAL && eg_value(ei.value) > VALUE_ZERO)
+          || (factor[BLACK] == SCALE_FACTOR_NORMAL && eg_value(ei.value) < VALUE_ZERO)))
   {
       ScaleFactor sf;
 
@@ -634,7 +634,7 @@ namespace {
     const Color Them = (Us == WHITE ? BLACK : WHITE);
 
     Bitboard b;
-    Score bonus = make_score(0, 0);
+    Score bonus = SCORE_ZERO;
 
     // Enemy pieces not defended by a pawn and under our attack
     Bitboard weakEnemies =  pos.pieces_of_color(Them)
@@ -821,7 +821,7 @@ namespace {
                 // add all X-ray attacks by the rook or queen. Otherwise consider only
                 // the squares in the pawn's path attacked or occupied by the enemy.
                 if (   (squares_behind(Us, s) & pos.pieces(ROOK, QUEEN, Them))
-                    && (squares_behind(Us, s) & pos.pieces(ROOK, QUEEN, Them) & pos.attacks_from<QUEEN>(s)))
+                    && (squares_behind(Us, s) & pos.pieces(ROOK, QUEEN, Them) & pos.attacks_from<ROOK>(s)))
                     unsafeSquares = squaresToQueen;
                 else
                     unsafeSquares = squaresToQueen & (ei.attacked_by(Them) | pos.pieces_of_color(Them));
@@ -902,7 +902,7 @@ namespace {
 
             if (d < 0 || pathDefended)
             {
-                int mtg = RANK_8 - relative_rank(c, s);
+                int mtg = RANK_8 - relative_rank(c, s) - int(relative_rank(c, s) == RANK_2);
                 int blockerCount = count_1s_max_15(squares_in_front_of(c, s) & pos.occupied_squares());
                 mtg += blockerCount;
                 d += blockerCount;
@@ -1064,9 +1064,8 @@ namespace {
   }
 
 
-  // scale_by_game_phase() interpolates between a middle game and an endgame
-  // score, based on game phase.  It also scales the return value by a
-  // ScaleFactor array.
+  // scale_by_game_phase() interpolates between a middle game and an endgame score,
+  // based on game phase. It also scales the return value by a ScaleFactor array.
 
   Value scale_by_game_phase(const Score& v, Phase ph, const ScaleFactor sf[]) {
 
@@ -1075,10 +1074,10 @@ namespace {
     assert(ph >= PHASE_ENDGAME && ph <= PHASE_MIDGAME);
 
     Value eg = eg_value(v);
-    ScaleFactor f = sf[eg > Value(0) ? WHITE : BLACK];
-    Value ev = Value((eg * f) / int(SCALE_FACTOR_NORMAL));
+    ScaleFactor f = sf[eg > VALUE_ZERO ? WHITE : BLACK];
+    Value ev = Value((eg * int(f)) / SCALE_FACTOR_NORMAL);
 
-    int result = (mg_value(v) * ph + ev * (128 - ph)) / 128;
+    int result = (mg_value(v) * int(ph) + ev * int(128 - ph)) / 128;
     return Value(result & ~(GrainSize - 1));
   }