refactor: add framebuffer resize event and separate UI management

include/Cubed/ui/world_ui_manager.hpp

@@ -0,0 +1,34 @@
+#pragma once
+
+#include "Cubed/input/event.hpp"
+#include "Cubed/ui/widget.hpp"
+
+#include <string>
+#include <unordered_map>
+namespace Cubed {
+class WorldScene;
+class WorldUIManager {
+public:
+    WorldUIManager(const WorldUIManager&) = delete;
+    WorldUIManager(WorldUIManager&&) = delete;
+    WorldUIManager& operator=(const WorldUIManager&) = delete;
+    WorldUIManager& operator=(WorldUIManager&&) = delete;
+
+    WorldUIManager(WorldScene& scene);
+    ~WorldUIManager();
+
+    void init();
+    void update(float dt);
+    void render(Renderer& renderer);
+    bool handle_event(const Event& e);
+
+private:
+    WorldScene& m_scene;
+    std::unordered_map<std::string, std::unique_ptr<Widget>> m_widgets;
+
+    bool handle_mouse_button_event(const MouseButtonEvent& e);
+    bool handle_window_resize_event(const WindowResizeEvent& e);
+    bool handle_mouse_wheel_event(const MouseWheelEvent& e);
+    bool handle_key_event(const KeyEvent& e);
+};
+} // namespace Cubed