C++ (Cpp) sound_SetObjectPosition Examples

Example #1

File: openal_track.c Project: cybersphinx/wzgraphicsmods

//*
// =======================================================================================================================
// =======================================================================================================================
//
BOOL sound_Play3DSample( TRACK *psTrack, AUDIO_SAMPLE *psSample )
{
#ifndef WZ_NOSOUND
	ALfloat zero[3] = { 0.0, 0.0, 0.0 };
	ALfloat volume;
	ALint error;

	if (sfx3d_volume == 0.0)
	{
		return false;
	}

	volume = ((float)psTrack->iVol / 100.f);		// max range is 0-100
	psSample->fVol = volume;						// store results for later

	// If we can't hear it, then don't bother playing it.
	if (volume == 0.0f)
	{
		return false;
	}
	// Clear error codes
	alGetError();

	alGenSources( 1, &(psSample->iSample) );

	error = sound_GetError();
	if (error != AL_NO_ERROR)
	{
		/* FIXME: We run out of OpenAL sources very quickly, so we
		 * should handle the case where we've ran out of them.
		 * Currently we don't do this, causing some unpleasant side
		 * effects, e.g. crashing...
		 */
	}

	// HACK: this is a workaround for a bug in the 64bit implementation of OpenAL on GNU/Linux
	// The AL_PITCH value really should be 1.0.
	alSourcef(psSample->iSample, AL_PITCH, 1.001f);

	sound_SetObjectPosition( psSample );
	alSourcefv( psSample->iSample, AL_VELOCITY, zero );
	alSourcei( psSample->iSample, AL_BUFFER, psTrack->iBufferName );
	alSourcei( psSample->iSample, AL_LOOPING, (sound_SetupChannel(psSample)) ? AL_TRUE : AL_FALSE );

	// NOTE: this is only useful for debugging.
#ifdef DEBUG
	psSample->is3d = true;
	psSample->isLooping = sound_TrackLooped(psSample->iTrack)? AL_TRUE : AL_FALSE;
	memcpy(psSample->filename,psTrack->fileName, strlen(psTrack->fileName));
	psSample->filename[strlen(psTrack->fileName)]='\0';
#endif

	// Clear error codes
	alGetError();

	alSourcePlay( psSample->iSample );
	sound_GetError();
#endif
	return true;
}

Example #2

File: audio.cpp Project: JCDG/warzone2100

void audio_Update()
{
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	Vector3f playerPos;
	float angle;
	AUDIO_SAMPLE	*psSample, *psSampleTemp;
	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	// if audio not enabled return true to carry on game without audio
	if ( g_bAudioEnabled == false )
	{
		return;
	}

#ifndef WZ_NOSOUND
	alGetError();	// clear error codes
#endif
	audio_UpdateQueue();
#ifndef WZ_NOSOUND
	alGetError();	// clear error codes
#endif
	// get player position
	playerPos = audio_GetPlayerPos();
	audio_Get3DPlayerRotAboutVerticalAxis(&angle);
	sound_SetPlayerPos(playerPos);
	sound_SetPlayerOrientation(angle);

	// loop through 3D sounds and remove if finished or update position
	psSample = g_psSampleList;
	while ( psSample != NULL )
	{
		// remove finished samples from list
		if ( psSample->bFinishedPlaying == true )
		{
			psSampleTemp = psSample->psNext;
			audio_RemoveSample( &g_psSampleList, psSample );
			free(psSample);
			psSample = psSampleTemp;
		}

		// check looping sound callbacks for finished condition
		else
		{
			if ( psSample->psObj != NULL )
			{
				if ( audio_ObjectDead(psSample->psObj)
				 || (psSample->pCallback != NULL && psSample->pCallback(psSample->psObj) == false) )
				{
					sound_StopTrack( psSample );
					psSample->psObj = NULL;
				}
				else
				{
					// update sample position
					{
						audio_GetObjectPos( psSample->psObj, &psSample->x, &psSample->y, &psSample->z );
#ifndef WZ_NOSOUND
						sound_SetObjectPosition(psSample);
#endif
					}
				}
			}
			// next sample
			psSample = psSample->psNext;
		}
	}

	sound_Update();
	return;
}