.h
class Interface
{
private:
	Game* game;
	SDL_Rect Point;
	SDL_Texture* Message;
	SDL_Surface* surfacePoint;
	TTF_Font* font;
public:
	Interface(Game&);
    void render();
    ~Interface();
};

.cpp
Interface::Interface(Game& game)
{
font = TTF_OpenFont("Arial.ttf", 100);
}

void Interface::render()
{
	Point.x = game->getWindowWidth()*0.15-50;
	Point.h = 50;

if(game->getScore() <= 9)
	{
		Point.x = game->getWindowWidth()*0.15+30;
		Point.w = 20;
	}
	else …

	SDL_Color color = {255, 255, 255, 255};
	std::string number;
	number = std::to_string(game->getScore());
	SDL_Surface* surfacePoint = TTF_RenderText_Solid(font, number.c_str(), color);
	SDL_Texture* Message = SDL_CreateTextureFromSurface(game->renderer, surfacePoint);
	SDL_RenderCopy(game->renderer, Message, NULL, &Point);
}