AudioManager.h

#ifndef AUDIOMANAGER_H
#define AUDIOMANAGER_H

/**DESCRIPTION: The platform-dependent class used to manage audio playback.**/

/**C INCLUDES**/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>

/**C++ INCLUDES**/
#include <vector>

/**PLATFORM INCLUDES**/
#include <3ds.h>

/**ENGINE INCLUDES**/
#include "AudioInstance.h"

/*DEFINITIONS*/
#define SAMPLE_RATE 44100
#define FRAMES_PER_BUFFER 1024
#define NUM_CHANNELS 1
#define SAMPLES_PER_BUFFER (FRAMES_PER_BUFFER * NUM_CHANNELS)

class AudioManager{
public:
    //Constructor
    AudioManager();
    //Destructor
    ~AudioManager();
    //Functions
    //Initializes the platform's audio library.
    void Init();
    //Updates the AudioManager. Used to get rid of audio that has completed playback.
    void Update();
    //Adds an AudioInstance to the queue of sounds to be mixed.
    static void PlayAudio(AudioInstance* audioObject);
    //Pauses a specific AudioInstance’s playback.
    static void PauseAudio(AudioInstance* audioObject);
    //Stops an AudioInstance’s, removing it from the queue.
    static void StopAudio(AudioInstance* audioObject);
    //Used to determine whether the audio is currently playing.
    static bool isAudioPlaying(AudioInstance* audioObject);
    //Clears all of the currently playing audio.
    static void Clear();
    //Shuts down the platform's audio library and releases memory.
    void Destroy();
    //Members
    //Dual buffers for the consistent playback of audio.
    ndspWaveBuf waveBuf[2];
    //Used for flipping between the buffers.
    bool activeBuffer = false;
    //Allocated memory that stores the result of mixing the currently queued audio. To be memcpy’d to the output device.
    short* audioData = NULL;
};

#endif