void SoundSource::Update(float timeStep)
{
if (!audio_)
return;
// If there is no actual audio output, perform fake mixing into a nonexistent buffer to check stopping/looping
if (!audio_->IsInitialized())
MixNull(timeStep);
// Free the sound if playback has stopped
if (sound_ && !position_)
{
FreeDecoder();
sound_.Reset();
}
// Check for autoremove
if (autoRemove_)
{
if (!IsPlaying())
{
autoRemoveTimer_ += timeStep;
if (autoRemoveTimer_ > AUTOREMOVE_DELAY)
{
Remove();
// Note: this object is now deleted, so only returning immediately is safe
return;
}
}
else
autoRemoveTimer_ = 0.0f;
}
}
void SoundSource::PlayLockless(Sound* sound)
{
// Reset the time position in any case
timePosition_ = 0.0f;
if (sound)
{
if (!sound->IsCompressed())
{
// Uncompressed sound start
signed char* start = sound->GetStart();
if (start)
{
// Free Decoder in case previous sound was compressed
FreeDecoder();
sound_ = sound;
position_ = start;
fractPosition_ = 0;
return;
}
}
else
{
// Compressed sound start
if (sound == sound_)
{
// If same compressed sound is already playing, rewind the Decoder
sound_->RewindDecoder(decoder_);
return;
}
else
{
// Else just set the new sound with a dummy start position. The mixing routine will allocate the new Decoder
FreeDecoder();
sound_ = sound;
position_ = sound->GetStart();
return;
}
}
}
// If sound pointer is null or if sound has no data, stop playback
FreeDecoder();
sound_.Reset();
position_ = 0;
}
void FreeParkingLot(ParkingLot * parkinglot)
{
FreeDecoder( GetDecoder( parkinglot ), GetVertices( parkinglot ) );
FreeGraph( GetGraph( parkinglot ) ) ;
freeLinkedList( GetAccesses( parkinglot) );
freeLinkedList( GetQueueHead(parkinglot) );
FreeParkedCars( GetParkedListHead(parkinglot) );
free(parkinglot);
}
void SoundSource::SetSoundAttr(ResourceRef value)
{
ResourceCache* cache = GetSubsystem<ResourceCache>();
Sound* newSound = cache->GetResource<Sound>(value.name_);
if (IsPlaying())
Play(newSound);
else
{
// When changing the sound and not playing, make sure the old decoder (if any) is freed
FreeDecoder();
sound_ = newSound;
}
}
void SoundSource::Stop()
{
if (!audio_)
return;
// If sound source is currently playing, have to lock the audio mutex
if (position_)
{
MutexLock lock(audio_->GetMutex());
StopLockless();
}
// Free the compressed sound decoder now if any
FreeDecoder();
MarkNetworkUpdate();
}