movegen: 为九子棋定制候选着法排列顺序

src/ai/movegen.cpp

@@ -357,6 +357,15 @@ void MoveList::shuffle()
     array<move_t, 4> movePriorityTable2 = { (move_t)16, (move_t)18, (move_t)20, (move_t)22 }; // 中圈十字架
     array<move_t, 8> movePriorityTable3 = { (move_t)24, (move_t)26, (move_t)28, (move_t)30, (move_t)8, (move_t)10, (move_t)12, (move_t)14 }; // 外内圈十字架
 
+    if (rule.nTotalPiecesEachSide == 9)
+    {
+        movePriorityTable0 = { (move_t)16, (move_t)18, (move_t)20, (move_t)22 }; // 中圈十字架 (星位)
+        movePriorityTable1 = { (move_t)24, (move_t)26, (move_t)28, (move_t)30, (move_t)8, (move_t)10, (move_t)12, (move_t)14 }; // 外内圈十字架
+        movePriorityTable2 = { (move_t)17, (move_t)19, (move_t)21, (move_t)23 }; // 中圈四个顶点
+        movePriorityTable3 = { (move_t)25, (move_t)27, (move_t)29, (move_t)31, (move_t)9, (move_t)11, (move_t)13, (move_t)15 }; // 外圈和内圈四个顶点
+    }
+
+
     if (options.getRandomMoveEnabled()) {
         uint32_t seed = static_cast<uint32_t>(now());
 

src/game/board.cpp

@@ -510,10 +510,17 @@ bool Board::getCurrentPiece(player_t &player, int &number, square_t square)
 
 bool Board::isStar(square_t square)
 {
-    return (square == 17 ||
+    if (rule.nTotalPiecesEachSide == 12) {
-            square == 19 ||
+        return (square == 17 ||
-            square == 21 ||
+                square == 19 ||
-            square == 23);
+                square == 21 ||
+                square == 23);
+    }
+
+    return (square == 16 ||
+            square == 18 ||
+            square == 20 ||
+            square == 22);
 }
 
 void Board::mirror(list <string> &cmdlist, char* cmdline, int32_t move_, square_t square, bool cmdChange /*= true*/)