必败时自动认输

gamewindow.ui

@@ -291,6 +291,7 @@
     <addaction name="actionSound_S"/>
     <addaction name="actionAnimation_A"/>
     <addaction name="separator"/>
+    <addaction name="actionGiveUpIfMostLose_G"/>
     <addaction name="actionAutoRestart_A"/>
     <addaction name="actionRandomMove_R"/>
    </widget>
@@ -1113,6 +1114,17 @@
     <string>电脑着法随机(&amp;R)</string>
    </property>
   </action>
+  <action name="actionGiveUpIfMostLose_G">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="checked">
+    <bool>true</bool>
+   </property>
+   <property name="text">
+    <string>必败时认输(&amp;G)</string>
+   </property>
+  </action>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <customwidgets>

src/ai/search.cpp

@@ -831,6 +831,7 @@ const char* MillGameAi_ab::bestMove()
 {
     vector<Node*> bestMoves;
     size_t bestMovesSize = 0;
+    bool isMostLose = true; // 是否必败
 
     if ((rootNode->children).empty()) {
         return "error!";
@@ -867,6 +868,30 @@ const char* MillGameAi_ab::bestMove()
         i++;
     }
 
+    // 检查是否必败
+
+    MillGame::Player whosTurn = chess_.whosTurn();
+
+    for (auto child : rootNode->children) {
+        // TODO: 使用常量代替
+        if (whosTurn == MillGame::PLAYER1 && child->value > -10000 ||
+            whosTurn == MillGame::PLAYER2 && child->value < 10000) {
+            isMostLose = false;
+            break;
+        }
+    }
+
+    // 自动认输
+    if (isMostLose) {
+        if (whosTurn == MillGame::PLAYER1) {
+            sprintf(cmdline, "Player1 give up!");
+        } else if (whosTurn == MillGame::PLAYER2) {
+            sprintf(cmdline, "Player2 give up!");
+        }
+
+        return cmdline;
+    }
+
     for (auto child : rootNode->children) {
         if (child->value == rootNode->value) {
             bestMoves.push_back(child);

src/game/millgame.cpp

@@ -168,6 +168,7 @@ MillGame &MillGame::operator = (const MillGame &chess)
     currentStep = chess.currentStep;
     moveStep = chess.moveStep;
     randomMove_ = chess.randomMove_;
+    giveUpIfMostLose_ = chess.giveUpIfMostLose_;
     board_ = context.board;
     currentPos = chess.currentPos;
     winner = chess.winner;
@@ -663,8 +664,11 @@ void MillGame::createMillTable()
 }
 
 // 设置配置
-bool MillGame::configure(bool randomMove)
+bool MillGame::configure(bool giveUpIfMostLose, bool randomMove)
 {
+    // 设置是否必败时认输
+    this->giveUpIfMostLose_ = giveUpIfMostLose;
+
     // 设置是否随机走子
     this->randomMove_ = randomMove;
 
@@ -1398,10 +1402,12 @@ bool MillGame::giveup(Player loser)
         winner = PLAYER2;
         tips = "玩家1投子认负。";
         sprintf(cmdline, "Player1 give up!");
+        score_2++;
     } else if (loser == PLAYER2) { 
         winner = PLAYER1;
         tips = "玩家2投子认负。";
         sprintf(cmdline, "Player2 give up!");
+        score_1++;
     }
 
     cmdlist.emplace_back(string(cmdline));
@@ -1465,7 +1471,7 @@ bool MillGame::command(const char *cmd)
     }
 
     // 认输
-    args = sscanf(cmd, "Players%1u give up!", &t);
+    args = sscanf(cmd, "Player%1u give up!", &t);
 
     if (args == 1) {
         if (t == 1) {

src/game/millgame.h

@@ -304,7 +304,7 @@ public:
     MillGame &operator=(const MillGame &);
 
     // 设置配置
-    bool configure(bool randomMove);
+    bool configure(bool giveUpIfMostLose, bool randomMove);
 
     // 设置棋局状态和棋盘上下文，用于初始化
     bool setContext(const struct Rule *rule,
@@ -362,6 +362,12 @@ public:
     int getMoveStep() const
     {
         return moveStep;
+    } 
+
+    // 获取是否必败时认输
+    bool getGiveUpIfMostLose() const
+    {
+        return giveUpIfMostLose_;
     }
 
     // 获取 AI 是否随机走子
@@ -575,6 +581,9 @@ private:
     // 从走子阶段开始或上次吃子起的步数
     int moveStep {};
 
+    // 是否必败时认输
+    bool giveUpIfMostLose_ {true};
+
     // AI 是否随机走子
     bool randomMove_ {true};
 

src/ui/qt/gamecontroller.cpp

@@ -54,6 +54,7 @@ GameController::GameController(GameScene & scene, QObject * parent) :
     ruleNo_(-1),
     timeLimit(0),
     stepsLimit(50),
+    giveUpIfMostLose_(true),
     randomMove_(true)
 {
     // 已在view的样式表中添加背景，scene中不用添加背景
@@ -116,7 +117,7 @@ const QMap<int, QStringList> GameController::getActions()
 
 void GameController::gameStart()
 {
-    chess_.configure(randomMove_);
+    chess_.configure(giveUpIfMostLose_, randomMove_);
     chess_.start();
     chessTemp = chess_;
 
@@ -142,7 +143,7 @@ void GameController::gameReset()
     }
 
     // 重置游戏
-    chess_.configure(randomMove_);
+    chess_.configure(giveUpIfMostLose_, randomMove_);
     chess_.reset();
     chessTemp = chess_;
 
@@ -283,7 +284,7 @@ void GameController::setRule(int ruleNo, MillGame::step_t stepLimited /*= -1*/,
 
 void GameController::setEngine1(bool arg)
 {
-    chess_.configure(randomMove_);
+    chess_.configure(giveUpIfMostLose_, randomMove_);
 
     isAiPlayer1 = arg;
     if (arg) {
@@ -299,7 +300,7 @@ void GameController::setEngine1(bool arg)
 
 void GameController::setEngine2(bool arg)
 {
-    chess_.configure(randomMove_);
+    chess_.configure(giveUpIfMostLose_, randomMove_);
 
     isAiPlayer2 = arg;
     if (arg) {
@@ -370,6 +371,11 @@ void GameController::playSound(const QString &soundPath)
 #endif /* ! DONOT_PLAY_SOUND */
 }
 
+void GameController::setGiveUpIfMostLose(bool arg)
+{
+    giveUpIfMostLose_ = arg;
+}
+
 void GameController::setAutoRestart(bool arg)
 {
     isAutoRestart = arg;
@@ -778,11 +784,9 @@ bool GameController::giveUp()
 
     if (chess_.whosTurn() == MillGame::PLAYER1) {
         result = chess_.giveup(MillGame::PLAYER1);
-        chess_.score_2++;
     }
     else if (chess_.whosTurn() == MillGame::PLAYER2) {
         result = chess_.giveup(MillGame::PLAYER2);
-        chess_.score_1++;
     }
         
     if (result) {

src/ui/qt/gamecontroller.h

@@ -70,6 +70,11 @@ public:
         return stepsLimit;
     }
 
+    bool getGiveUpIfMostLose()
+    {
+        return giveUpIfMostLose_;
+    }
+
     bool getRandomMove()
     {
         return randomMove_;
@@ -150,6 +155,9 @@ public slots:
     // 播放声音
     void playSound(const QString &soundPath);
 
+    // 是否必败时认输
+    void setGiveUpIfMostLose(bool arg);
+
     // 是否自动开局
     void setAutoRestart(bool arg = false);
 
@@ -240,6 +248,9 @@ private:
     // 是否有落子音效
     bool hasSound;
 
+    // 是否必败时认输
+    bool giveUpIfMostLose_;
+
     // 是否棋局结束后自动重新开局
     bool isAutoRestart;
 

src/ui/qt/gamewindow.cpp

@@ -204,6 +204,9 @@ void MillGameWindow::initialize()
     connect(ui.actionAnimation_A, SIGNAL(toggled(bool)),
             game, SLOT(setAnimation(bool)));
 
+    connect(ui.actionGiveUpIfMostLose_G, SIGNAL(toggled(bool)),
+            game, SLOT(setGiveUpIfMostLose(bool)));
+
     connect(ui.actionAutoRestart_A, SIGNAL(toggled(bool)),
             game, SLOT(setAutoRestart(bool)));