+void level_default (st_level* plevel);
+int level_load (st_level* plevel, const char * subset, int level);
+void level_parse (st_level* plevel, lisp_object_t* cursor);
+int level_load (st_level* plevel, const char* filename);
+void level_save (st_level* plevel, const char * subset, int level);
+void level_free (st_level* plevel);
+void level_load_gfx (st_level* plevel);
+void level_change (st_level* plevel, float x, float y, int tm, unsigned int c);
+void level_change_size (st_level* plevel, int new_width);
+void level_load_song(st_level* plevel);
+void level_free_gfx();
+void level_load_image(texture_type* ptexture, std::string theme, const char * file, int use_alpha);
+void level_free_song(void);