Better clarify why recent generate_pawn_checks() works

[stockfish] / src / movepick.cpp

diff --git a/src/movepick.cpp b/src/movepick.cpp
index 7b2479fca6135574ec5aa0c645afb34532849d2b..4b08e1b46d35c07e95bd65cf547e459f1bdbe86e 100644 (file)
--- a/src/movepick.cpp
+++ b/src/movepick.cpp
@@ -63,24 +63,25 @@ namespace {
 /// search captures, promotions and some checks) and about how important good
 /// move ordering is at the current node.
 
-MovePicker::MovePicker(const Position& p, bool pv, Move ttm,
-                       const SearchStack& ss, Depth d) : pos(p) {
-  pvNode = pv;
+MovePicker::MovePicker(const Position& p, Move ttm, Depth d,
+                       const History& h, SearchStack* ss) : pos(p), H(h) {
   ttMove = ttm;
-  mateKiller = (ss.mateKiller == ttm)? MOVE_NONE : ss.mateKiller;
-  killer1 = ss.killers[0];
-  killer2 = ss.killers[1];
-  depth = d;
-  movesPicked = 0;
-  numOfMoves = 0;
-  numOfBadCaptures = 0;
-  checkKillers = checkLegal = false;
+  if (ss)
+  {
+      mateKiller = (ss->mateKiller == ttm)? MOVE_NONE : ss->mateKiller;
+      killer1 = ss->killers[0];
+      killer2 = ss->killers[1];
+  } else
+      mateKiller = killer1 = killer2 = MOVE_NONE;
+
+  movesPicked = numOfMoves = numOfBadCaptures = 0;
+  checkKillers = checkLegal = finished = false;
 
   if (p.is_check())
       phaseIndex = EvasionsPhaseIndex;
-  else if (depth > Depth(0))
+  else if (d > Depth(0))
       phaseIndex = MainSearchPhaseIndex;
-  else if (depth == Depth(0))
+  else if (d == Depth(0))
       phaseIndex = QsearchWithChecksPhaseIndex;
   else
       phaseIndex = QsearchWithoutChecksPhaseIndex;