Method BGM_Fade

src/audio_generic.cpp:130–136

}

void GenericAudio::BGM_Fade(int fade) {
	LockMutex();
	for (auto& BGM_Channel : BGM_Channels) {
		BGM_Channel.SetFade(fade);
	}
	UnlockMutex();
}

void GenericAudio::BGM_Volume(int volume) {
	LockMutex();