void clearscreen(int r, int g, int b);
void drawgradient(Color top_clr, Color bot_clr);
void fillrect(float x, float y, float w, float h, int r, int g, int b, int a);
+//void black_fade(Surface* surface, int seconds, bool fade_out);
+void fade(const std::string& surface, int seconds, bool fade_out);
void updatescreen(void);
void flipscreen(void);
void update_rect(SDL_Surface *scr, Sint32 x, Sint32 y, Sint32 w, Sint32 h);