使用只能指针代替裸指针

include/imageService.h

@@ -1,18 +1,19 @@
 #include <SFML/Graphics.hpp>
 #include <algorithm>
+#include <memory>
 
 class ImageService {
 private:
-    sf::Texture texture;
+    std::shared_ptr<sf::Texture> texture = std::make_shared<sf::Texture>();
 public:
     ImageService(const std::string& name){
-        texture.loadFromFile(name);
+        texture->loadFromFile(name);
     }
-    sf::Texture& GetTexture(){
+    std::shared_ptr<sf::Texture> GetTexture(){
         return texture;
     }
     float GetScale(int width, int height){
-        auto imgSize = texture.getSize();
+        auto imgSize = texture->getSize();
         return std::min(static_cast<float>(width) / imgSize.x, static_cast<float>(height) / imgSize.y);
     }
 };