void Awake()
{
if (_mixerControls != null)
{
for (int i = 0; i < _mixerControls.Length; ++i)
{
var c = _mixerControls[i];
if (c.mixerGroup != null)
{
MixerGroupState s = new MixerGroupState();
s.mixerControl = c;
_mixerState.Add(c.mixerGroup, s);
}
}
}
}
bool CanPlay(Actor actor, GameObject go, SoundCue sound, double time, out MixerGroupState groupState, out PlayingSource playingSource)
{
groupState = null;
playingSource = null;
if (sound.audioSourcePrefab.outputAudioMixerGroup != null)
{
if (_mixerState.TryGetValue(sound.audioSourcePrefab.outputAudioMixerGroup, out groupState))
{
if (groupState.hasPlayed && (groupState.mixerControl.maxGroupRate > 0f))
{
double d = time - groupState.lastTime;
if (d < groupState.mixerControl.maxGroupRate)
{
return(false);
}
}
if (go != null)
{
if (!groupState.playingSources.TryGetValue(go, out playingSource))
{
playingSource = new PlayingSource();
playingSource.go = go;
playingSource.actor = actor;
groupState.playingSources.Add(go, playingSource);
}
}
else
{
playingSource = groupState.positionalSource;
}
if (playingSource.hasPlayed && (groupState.mixerControl.maxSourceRate > 0f))
{
double d = time - playingSource.lastTime;
if (d < groupState.mixerControl.maxSourceRate)
{
return(false);
}
}
if (groupState.mixerControl.maxGroupVoices > 0)
{
if (groupState.currentVoiceCount >= groupState.mixerControl.maxGroupVoices)
{
var stopSource = groupState.activeSources[0];
bool shouldStop = true;
if (groupState.mixerControl.groupLimit == ELimitMode.Discard)
{
bool discard = true;
if (groupState.mixerControl.maxSourceVoices > 0)
{
if (playingSource.sources.Count >= groupState.mixerControl.maxSourceVoices)
{
if (groupState.mixerControl.sourceLimit != ELimitMode.Discard)
{
if (playingSource != stopSource.playingSource)
{
// the group limit has been reached and the source
// will not stop it.
return(false);
}
// the source voice limit will force a sound on the group to stop from
// this source, satisfying the group limit
discard = false;
shouldStop = false;
}
}
}
if (discard)
{
return(false);
}
}
if (shouldStop)
{
// stop the oldest playing voice...
if (groupState.mixerControl.maxSourceVoices > 0)
{
if (playingSource.sources.Count >= groupState.mixerControl.maxSourceVoices)
{
if (groupState.mixerControl.sourceLimit == ELimitMode.Discard)
{
if (playingSource != stopSource.playingSource)
{
// the source limit has been reached, even if we stopped this voice
// it won't play so don't stop it.
return(false);
}
}
// the source voice limit will force a sound on the group to stop from
// this source, satisfying the group limit
shouldStop = false;
}
}
}
if (shouldStop)
{
if (stopSource.audioSource != null)
{
Utils.DestroyGameObject(stopSource.audioSource.gameObject);
}
stopSource.playingSource.sources.Remove(stopSource);
groupState.activeSources.RemoveAt(0);
--groupState.currentVoiceCount;
}
}
}
if (groupState.mixerControl.maxSourceVoices > 0)
{
if (playingSource.sources.Count >= groupState.mixerControl.maxSourceVoices)
{
if (groupState.mixerControl.sourceLimit == ELimitMode.Discard)
{
return(false);
}
var stopSource = playingSource.sources[0];
if (stopSource.audioSource != null)
{
Utils.DestroyGameObject(stopSource.audioSource.gameObject);
}
groupState.activeSources.Remove(stopSource);
playingSource.sources.RemoveAt(0);
--groupState.currentVoiceCount;
}
}
}
}
return(true);
}
