#include <iostream>
#include <chrono>

class FPSCounter {
public:
    FPSCounter() : frameCount(0), lastTime(std::chrono::high_resolution_clock::now()) {}

    void update() {
        frameCount++;
        auto currentTime = std::chrono::high_resolution_clock::now();
        std::chrono::duration<double> elapsed = currentTime - lastTime;

        // Aktualizujemy i wypisujemy TYLKO jeśli minęła co najmniej 1 sekunda
        if (elapsed.count() >= 1.0) {
            double fps = frameCount / elapsed.count();
            double msPerFrame = 1000.0 / fps;

            std::cout << "FPS: " << (int)fps
                << " | Czas klatki: " << msPerFrame << " ms" << std::endl;

            frameCount = 0;
            lastTime = currentTime;
        }
    }

private:
    int frameCount;
    std::chrono::time_point<std::chrono::high_resolution_clock> lastTime;
};