完成UI管理器与UI元素

src/engine/render/renderer.h

@@ -1,11 +1,12 @@
 #pragma once
 #include "sprite.h"
+#include "../utils/math.h"
 #include <string>
 #include <optional> // For std::optional
-#include <glm/glm.hpp>
 
 struct SDL_Renderer;
 struct SDL_FRect;
+struct SDL_FColor;
 
 namespace engine::resource {
     class ResourceManager;
@@ -67,6 +68,13 @@ public:
      */
     void drawUISprite(const Sprite& sprite, const glm::vec2& position, const std::optional<glm::vec2>& size = std::nullopt);
 
+    /**
+     * @brief 绘制填充矩形
+     * 
+     * @param rect 矩形区域
+     * @param color 填充颜色
+     */
+    void drawUIFilledRect(const engine::utils::Rect& rect, const engine::utils::FColor& color);
 
     void present();                                                     ///< @brief 更新屏幕，包装 SDL_RenderPresent 函数
     void clearScreen();                                                 ///< @brief 清屏，包装 SDL_RenderClear 函数