Joystick C++ lib. Simple cross-platform library to work with joysticks

namespace cr 
{
namespace utils 
{
/// Joystick class.
class Joystick
{
public:

    /// Get Joystick class version.
    static std::string getVersion();

    /// Class constructor.
    Joystick();

    /// Class destructor.
    ~Joystick();

    /// Find available joysticks.
    std::vector<JoystickInfo> findJoysticks();

    /// Open joystick.
    bool openJoystick(int id);

    /// Close joystick.
    void closeJoystick();

    /// Check status of a button.
    bool getButtonState(int buttonId);

    /// Get hat value.
    int getHatValue();

    /// Get axis value.
    int getAxisValue(int axisId);
};
}
}

#include <iostream>
#include <thread>
#include <chrono>
#include "Joystick.h"

int main(void)
{
    // Create joystick controller.
    cr::utils::Joystick joyStickController;

    // Read number of connected joysticks.
    std::vector<cr::utils::JoystickInfo> joysticks;
    joysticks = joyStickController.findJoysticks();

    // Open first joystick
    joyStickController.openJoystick(joysticks.at(0).id);

    // Print joystick infos.
    std::cout << "Joystick name : " << joysticks.at(0).name << std::endl;
    std::cout << "Number of button : " << joysticks.at(0).numButtons << std::endl;
    std::cout << "Number of axes : " << joysticks.at(0).numAxes << std::endl;

    // Read all avaliable buttons one by one 
    while (true) 
    {
        for (int i = 0; i < joysticks.at(0).numButtons; ++i)
        {
            if (joyStickController.getButtonState(i) == true)
                std::cout << "Button : " << i << " pressed" << std::endl;
        }
        
        std::this_thread::sleep_for(std::chrono::milliseconds(100));
    }
    return 0;
}