class Game
{
public:
    Game();
    void run();
private:
    void processEvents();
    void update();
    void render();
    sf::RenderWindow window; // instantiated object from class RenderWindow
};

void Player::drawPlayer()
    {
        window.draw(playerImage); // window is undeclared from class game in another header file
    }

/* Steps reproduced
 *  made sf::RenderWindow window inside a void friend function, didnt work
 *  made sf::RenderWindow window a aurgment of a function, did not work.
 * ERROR MESSAGE:
 * Error    use of undeclared identifier 'window'   25:9
 *Error ‘window’ was not declared in this scope 25:9
 *Error ‘window’ was not declared in this scope
*/