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MusicManager.h

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#ifndef __MusicManager_H__
#define __MusicManager_H__

// Includes
#include "Singleton.h"
#include "Filename.h"

// Forward declares
class Music;

// MusicManager
class MusicManager:public Singleton<MusicManager>
   {
   public:
      MusicManager();
      virtual ~MusicManager();   

      void PlayMusic(const Filename& filename, bool loop = true, float volume = 1, float fadeInTime_ = 0);
      void StopMusic(float fadeOutTime = 0.5f);

      void SwitchMusic(const Filename& filename, bool loop = true, float volume = 1, float fadeOutTime = 0.5f, float fadeInTime = 0);
      void CrossFadeMusic(const Filename& filename, bool loop = true, float volume = 1, float crossFadeTime = 1.0f);

      const Filename& GetCurrentMusicFilename();
      Music* GetCurrentMusic();

      void Update(float deltaTime);


   private:
      Filename currentMusicFilename_;
      Music* currentMusic_;
      float currentMusicVolume_;
      bool currentMusicLoop_;

      Filename switchMusicFilename_;
      Music* switchMusic_;
      float switchMusicVolume_;
      bool switchMusicLoop_;

      enum State
         {
         State_Playing,
         State_NotPlaying,
         State_FadingIn,
         State_FadingOut,
         State_SwitchFadingOut,
         State_CrossFading,
         };
      State state_;

      float fadeInTime_;
      float fadeOutTime_;
      float crossFadeTime_;
      float currentTime_;
   };

#define siMusicManager MusicManager::GetInstance()

#endif /* __MusicManager_H__ */

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