优化web版退出逻辑，优化readme图片大小

README-ZN.md

@@ -69,9 +69,8 @@ cmake --build build
 若需支持或反馈，请通过本仓库的 GitHub issues 板块联系我们。您的反馈对改进本系列教程至关重要！
 
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-
+<a href="https://ko-fi.com/ziyugamedev"><img src="https://storage.ko-fi.com/cdn/kofi2.png?v=3" alt="Buy Me A Coffee" width="200" /></a>
+<a href="https://afdian.com/a/ziyugamedev"><img src="https://pic1.afdiancdn.com/static/img/welcome/button-sponsorme.png" alt="Support me on Afdian" width="200" /></a>
 
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README.md

@@ -69,9 +69,8 @@ If you encounter trouble downloading from GitHub (especially on networks in main
 For support or feedback, please contact us through the GitHub issues section of this repository. Your feedback is crucial for making this series of tutorials better!
 
 ## Buy Me a Coffee
-[!["Buy Me A Coffee"](https://storage.ko-fi.com/cdn/kofi2.png?v=3)](https://ko-fi.com/ziyugamedev)
-[!["Support me on Afdian"](https://pic1.afdiancdn.com/static/img/welcome/button-sponsorme.png)](https://afdian.com/a/ziyugamedev)
-
+<a href="https://ko-fi.com/ziyugamedev"><img src="https://storage.ko-fi.com/cdn/kofi2.png?v=3" alt="Buy Me A Coffee" width="200" /></a>
+<a href="https://afdian.com/a/ziyugamedev"><img src="https://pic1.afdiancdn.com/static/img/welcome/button-sponsorme.png" alt="Support me on Afdian" width="200" /></a>
 
 
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src/engine/core/game_app.cpp

@@ -36,6 +36,7 @@ void GameApp::run() {
     }
 
 #ifdef __EMSCRIPTEN__
+    web_main_loop_cancelled_ = false;
     // WebAssembly 环境下使用回调函数
     // 0 表示无限帧率(由浏览器 requestAnimationFrame 控制)，1 表示模拟无限循环
     emscripten_set_main_loop_arg([](void* arg) {
@@ -51,24 +52,50 @@ void GameApp::run() {
 }
 
 void GameApp::oneIter() {
+#ifdef __EMSCRIPTEN__
+    if (!is_running_) {
+        if (!web_main_loop_cancelled_) {
+            emscripten_cancel_main_loop();
+            web_main_loop_cancelled_ = true;
+            close();
+        }
+        return;
+    }
+#else
     if (!is_running_) return; // 防止在退出标志设置后的额外调用
+#endif
 
     time_->update();
     float delta_time = time_->getDeltaTime();
     input_manager_->update();   // 每帧首先更新输入管理器
     
     handleEvents();
+    if (!is_running_) {
+#ifdef __EMSCRIPTEN__
+        if (!web_main_loop_cancelled_) {
+            emscripten_cancel_main_loop();
+            web_main_loop_cancelled_ = true;
+            close();
+        }
+#endif
+        return;
+    }
+
     update(delta_time);
+    if (!is_running_) {
+#ifdef __EMSCRIPTEN__
+        if (!web_main_loop_cancelled_) {
+            emscripten_cancel_main_loop();
+            web_main_loop_cancelled_ = true;
+            close();
+        }
+#endif
+        return;
+    }
+
     render();
 
     // spdlog::info("delta_time: {}", delta_time);
-
-#ifdef __EMSCRIPTEN__
-    if (!is_running_) {
-        emscripten_cancel_main_loop();
-        close();
-    }
-#endif
 }
 
 void GameApp::registerSceneSetup(std::function<void(engine::scene::SceneManager &)> func)

src/engine/core/game_app.h

@@ -46,6 +46,9 @@ private:
     SDL_Window* window_ = nullptr;
     SDL_Renderer* sdl_renderer_ = nullptr;
     bool is_running_ = false;
+#ifdef __EMSCRIPTEN__
+    bool web_main_loop_cancelled_ = false;
+#endif
 
     /// @brief 游戏场景设置函数，用于在运行游戏前设置初始场景 (GameApp不再决定初始场景是什么)
     std::function<void(engine::scene::SceneManager&)> scene_setup_func_;