SoundMusic.h

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// Copyright © 2008-2023 Pioneer Developers. See AUTHORS.txt for details
// Licensed under the terms of the GPL v3. See licenses/GPL-3.txt
 
#ifndef _MUSIC_H
#define _MUSIC_H
 
#include "Sound.h"
#include <SDL.h>
#include <sigc++/sigc++.h>
#include <string>
#include <vector>
 
namespace Sound {
    class MusicEvent : public Event {
    public:
        MusicEvent();
        MusicEvent(Uint32 id);
        ~MusicEvent();
        virtual void Play(const char *fx, const float volume_left, const float volume_right, Op op);
    };
 
    class MusicPlayer {
    public:
        MusicPlayer();
        ~MusicPlayer();
        float GetVolume() const;
        void SetVolume(const float);
        void Play(const std::string &, const bool repeat = false, const float fadeDelta = 1.f);
        void Stop();
        void FadeOut(const float fadeDelta);
        void Update();
        const std::string GetCurrentSongName() const;
        const std::vector<std::string> GetSongList() const;
        bool IsPlaying() const;
        void SetEnabled(bool);
 
        sigc::signal<void> onSongFinished;
 
    private:
        float m_volume;
        //two streams for crossfade
        MusicEvent m_eventOne;
        MusicEvent m_eventTwo;
        bool m_playing;
        bool m_eventOnePlaying;
        std::string m_currentSongName;
        bool m_enabled;
    };
} // namespace Sound
 
#endif