/*

 *  File:       DZSound.c

 *

 *  Contents:   Handles some of the sound stuff.

 *

 *  Copyright © 1996 Apple Computer, Inc.

 */

#include <assert.h>

#include <math.h>

#include <Controls.h>

#include <Dialogs.h>

#include <Sound.h>

#include "SoundSprocket.h"

#include "DZSound.h"

#include "DZResource.h"

#include "DZUtils.h"

static SSpListenerReference gSoundListener          = NULL;

/* =============================================================================

 *      Sound_Init (external)

 *

 *  Initializes the sound stuff.

 * ========================================================================== */

void Sound_Init(

    void)

{

    NumVersion              version;

    // Check the sound manager version

    version = SndSoundManagerVersion();

    //¥ IF YOU CAN'T COMPILE THE PREVIOUS LINE, YOU MUST EDIT YOUR Sound.h TO

    //¥ MAKE SndSoundManagerVersion RETURN THE TYPE NumVersion.

    if (!CheckVersionNumber(&version, 3, 2, 1))

    {

        StopAlert(kAlrtID_SoundMgrVersion, NULL);

        //¥ TODO: QUIT or disable sound

    }

    // Create the listener

    SSpListener_New(&gSoundListener);

    assert(gSoundListener != NULL);

    SSpListener_SetMetersPerUnit(gSoundListener, 5.0);

}

/* =============================================================================

 *      Sound_Exit (external)

 *

 *  Prepares for exit.

 * ========================================================================== */

void Sound_Exit(

    void)

{

    if (gSoundListener != NULL)

    {

        SSpListener_Dispose(gSoundListener);

        gSoundListener = NULL;

    }

}

/* =============================================================================

 *      Sound_GetListener (external)

 *

 *  Returns the game listener object, which is the "head" position for 3D sound.

 * ========================================================================== */

SSpListenerReference Sound_GetListener(

    void)

{

    assert(gSoundListener != NULL);

    return gSoundListener;

}

/* =============================================================================

 *      Sound_Configure (external)

 *

 *  Presents the modal dialog to configure the 3D sound stuff..

 * ========================================================================== */

void Sound_Configure(

    void)

{

    SSpConfigureSpeakerSetup(NULL);

}