/*

    This file contains just a little code that uses the xthing timer

    to play sounds every once in a while.

*/

#include "ZAM.h"

#include "GameSounds.h"

#include "TankSprite.h"

#include <Math.h>

#include "ZAMProtos.h"

xthing gIncidentalSoundTask;

static gLastSound;

Boolean IncidentalSoundTask(xthing *xtp, long ignore)

{

    short   x;

    short   soundID = 0;

    x = abs(Random() % 7);

    if(x == 1)

        if(gLastSound == kIncidental1)

            soundID = kIncidental3;

        else

            soundID = kIncidental1;

    else if (x == 2)

        if(gLastSound == kIncidental2)

            soundID = kIncidental1;

        else

            soundID = kIncidental2;

    else if (x == 3)

        if(gLastSound == kIncidental3)

            soundID = kIncidental4;

        else

            soundID = kIncidental3;

    else if (x == 4)

        if(gLastSound == kIncidental4)

            soundID = kIncidental5;

        else

            soundID = kIncidental4;

    else if (x == 5)

        if(gLastSound == kIncidental5)

            soundID = kIncidental2;

        else

            soundID = kIncidental5;

    if(soundID != 0) {

        gLastSound = soundID;

        (void)PlaySndAsynchChannel(gLastSound, kMusicChan, kStdPriority);

    }

    /* play next sound in a random amount of time, from 5 to 30 seconds from now */

    xtp->interval = ( (Random() & 0x7FFFF) % 25000) + 5000;

    return true;

}

void StartIncidentalSounds(void)

{

    gLastSound = 0;

    (void)StartXThing(&gIncidentalSoundTask, 30000, 

            (updateProc)IncidentalSoundTask, 0L);

}