-SDL_Surface * load_image(char * file, int use_alpha);
-/*
-void drawimage(SDL_Surface * surf, float x, float y, int update);
-void drawpart(SDL_Surface * surf, float x, float y, float w, float h, int update);
-*/
-void drawtext(char * text, int x, int y, SDL_Surface * surf, int update, int shadowsize);
-void drawcenteredtext(char * text, int y, SDL_Surface * surf, int update, int shadowsize);
-void erasetext(char * text, int x, int y, SDL_Surface * surf, int update, int shadowsize);
-void erasecenteredtext(char * text, int y, SDL_Surface * surf, int update, int shadowsize);