Messages

1

Audio / Re: Why is sf::Music non-copyable?

« on: April 29, 2015, 10:00:16 pm »

You cannot use the stack for a dynamically sized container.

Sorry, I meant the heap.

Those will be supported when SFML switches to C++11.

I didn't know that it hadn't. Come to think of it, that would explain the lack of rvalue references.

Well, thank you for the explanation!

2

Audio / Why is sf::Music non-copyable?

« on: April 29, 2015, 07:35:49 pm »

class MusicManager
{
private:
        std::vector<sf::Music> music;
        int iCrt;

public:
        void Add(const std::string& s)
        {
                sf::Music m;
                if (!m.openFromFile(s)) return;
                music.push_back(std::move(m));
        }

        void SetCurrent(int index)
        { iCrt = index; }

        sf::Music& GetCurrent()
        { return music[iCrt]; }
};

int main()
{
        MusicManager mm;
        mm.Add("content/audio/music/Caught.wav");
        mm.SetCurrent(0);
        mm.GetCurrent().play();

        getchar();
}
 

Since sf::Music inherits from sf::NonCopyable, this code will not run, giving me the error message error C2248: 'sf::NonCopyable::NonCopyable' : cannot access private member declared in class 'sf::NonCopyable' using Visual C++ 12.

Why is sf::Music non-copyable? Neither sf::Sound nor sf::SoundBuffer has this restriction.

The only way I've found to fix this is to use an array of sf::Music* and create each one on the stack individually.

(Sorry if this has already been explained elsewhere, but I couldn't find it anywhere in SFML's documentation.)