Added OnlineGameScene and OnlineGameUIManager class

src/ui/managers/GameUIManager.h

@@ -23,7 +23,7 @@ public:
     void updateGameState(GameState state);
 
     bool handleClick(int logicalX, int logicalY);
-private:
+protected:
     std::function<void()> m_restartCallback;
     void setupUIComponents();
 

src/ui/managers/MainMenuUIManager.cpp

@@ -18,6 +18,13 @@ void MainMenuUIManager::init() {
     );
     
     m_buttons.emplace(startButton->getNameHash(), std::move(startButton));
+
+    auto onlineStartButton = UIWidgetFactory::createStandardButton(
+        "OnlineStartButton", "联机对战", 275, 250,
+        [this]() {m_eventCallback("OnlineGameScene"); }
+    );
+
+    m_buttons.emplace(onlineStartButton->getNameHash(), std::move(onlineStartButton));
     
 }
 

src/ui/managers/OnlineGameUIManager.h

@@ -0,0 +1,13 @@
+#pragma once
+#include "GameUIManager.h"
+#include "network/NetData.h"
+class OnlineGameUIManager : public GameUIManager {
+public:
+    using OnlineTypeEvent = std::function<void(NetType )>;
+    OnlineGameUIManager(SceneEventCallback eventCallback);
+    ~OnlineGameUIManager();
+    void init() override;
+    void setOnlineTypeCallback(OnlineTypeEvent type);
+private:
+    OnlineTypeEvent m_onlineTypeEvent;
+};