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General / How to make a game loop and draw the fps on the screen?

« on: April 11, 2021, 09:36:10 pm »

Hello, I've made the game loop from the SFML Game Development book. But now I want to figure out how to show the FPS on the screen. What is the right way of doing it?

        int fps = 60;
        sf::Clock clock;
        sf::Time timeSinceLastUpdate = sf::Time::Zero;
        sf::Time timePerFrame = sf::seconds(1.f / fps);

        while (window.isOpen())
        {
                timeSinceLastUpdate += clock.restart();
                processEvents();

                while (timeSinceLastUpdate > timePerFrame) // time per frame
                {
                        timeSinceLastUpdate -= timePerFrame;
                        processEvents();
                        update(timePerFrame);
                }

                render();
        }