tutorial 1 and 2

engine/inc/renderer/core/2d/renderer_core_2d.hpp

@@ -27,8 +27,8 @@ class RendererCore2D {
 
   void init(RendererSettings* settings, clutbuffer_t* clutBuffer);
 
-  void render(Sprite* sprite, const RendererCoreTextureBuffers& texBuffers,
-              Texture* texture);
+  void render(const Sprite& sprite,
+              const RendererCoreTextureBuffers& texBuffers, Texture* texture);
 
  private:
   void setPrim();

engine/inc/renderer/core/texture/texture_repository.hpp

@@ -108,6 +108,8 @@ class TextureRepository {
    * Texture IS destructed.
    */
   void free(const u32& t_texId);
+  void free(const Texture* t_tex);
+  void free(const Texture& t_tex);
 
  private:
   std::vector<Texture*> textures;