WAR: 临时性解决点击棋谱后无反应的问题

因为 cmdlist 移动框 gameController 后，每次重新开局被清空后
就没有首行的 s2... 了，临时解决方式是先备份这一行，清空后再
插回去。

src/position.cpp

@@ -472,7 +472,7 @@ int Position::pieces_in_hand_count()
     return pieceCountInHand[BLACK] + pieceCountInHand[WHITE];
 }
 
-bool Position::set_position(const struct Rule *newRule)
+int Position::set_position(const struct Rule *newRule)
 {
     rule = *newRule;
 
@@ -504,15 +504,10 @@ bool Position::set_position(const struct Rule *newRule)
     int r;
     for (r = 0; r < N_RULES; r++) {
         if (strcmp(rule.name, RULES[r].name) == 0)
-            break;
+            return r;
     }
 
-    if (sprintf(cmdline, "r%1u s%03u t%02u", r + 1, rule.maxStepsLedToDraw, rule.maxTimeLedToLose) > 0) {
-        return true;
-    }
-
-    cmdline[0] = '\0';
-    return false;
+    return -1;
 }
 
 bool Position::reset()
@@ -878,7 +873,7 @@ bool Position::command(const char *cmd)
             return false;
         }
 
-        return set_position(&RULES[ruleIndex - 1]);
+        return set_position(&RULES[ruleIndex - 1]) >= 0 ? true : false;
     }
 
     args = sscanf(cmd, "(%1u,%1u)->(%1u,%1u) %2u:%2u", &file1, &rank1, &file2, &rank2, &mm, &ss);

src/position.h

@@ -115,7 +115,7 @@ public:
 
     /// Mill Game
 
-    bool set_position(const struct Rule *rule);
+    int set_position(const struct Rule *rule);
 
     time_t get_elapsed_time(int us);
     time_t start_timeb() const;

src/ui/qt/gamecontroller.cpp

@@ -154,6 +154,7 @@ extern deque<int> openingBookDequeBak;
 
 void GameController::gameStart()
 {
+    //cmdlist.clear();
     position.start();
 
     // 每隔100毫秒调用一次定时器处理函数
@@ -182,9 +183,14 @@ void GameController::gameReset()
     timeID = 0;
 
     // 重置游戏
-    position.reset();
+    // WAR
+    if (cmdlist.size() > 1) {
+        string bak = cmdlist[0];
+        cmdlist.clear();
+        cmdlist.emplace_back(bak);
+    }    
 
-    cmdlist.clear();
+    position.reset();    
 
     // 停掉线程
     if (!gameOptions.getAutoRestart()) {
@@ -332,12 +338,18 @@ void GameController::setRule(int ruleNo, Step stepLimited /*= -1*/, int timeLimi
     }
 
     // 设置模型规则，重置游戏
-    position.set_position(&RULES[ruleNo]);
+    int r = position.set_position(&RULES[ruleNo]);
+
+    char cmdline[64] = { 0 };
+    if (sprintf(cmdline, "r%1u s%03u t%02u", r + 1, rule.maxStepsLedToDraw, rule.maxTimeLedToLose) <= 0) {
+        assert(0);
+    }
+    string cmd(cmdline);
+    cmdlist.clear();
+    cmdlist.emplace_back(cmd);
 
     // 重置游戏
     gameReset();
-
-    cmdlist.clear();
 }
 
 void GameController::setEngine(int color, bool arg)