internal static bool Duplicate(this TrackAsset track, PlayableDirector director, TimelineAsset destinationTimeline = null)
{
bool result;
if (track == null)
{
result = false;
}
else
{
if (destinationTimeline == track.timelineAsset)
{
destinationTimeline = null;
}
TimelineAsset timelineAsset = track.parent as TimelineAsset;
TrackAsset trackAsset = track.parent as TrackAsset;
if (timelineAsset == null && trackAsset == null)
{
Debug.LogWarning("Cannot duplicate track because it is not parented to known type");
result = false;
}
else
{
PlayableAsset playableAsset = destinationTimeline ?? track.parent;
TrackAsset trackAsset2 = TimelineHelpers.Clone(playableAsset, track, director);
TrackExtensions.RecursiveSubtrackClone(track, trackAsset2, director);
Undo.RegisterCreatedObjectUndo(trackAsset2, "Duplicate");
TimelineCreateUtilities.SaveAssetIntoObject(trackAsset2, playableAsset);
TimelineUndo.PushUndo(playableAsset, "Duplicate");
if (destinationTimeline != null)
{
destinationTimeline.AddTrackInternal(trackAsset2);
}
else if (timelineAsset != null)
{
TrackExtensions.ReparentTracks(new List <TrackAsset>
{
trackAsset2
}, timelineAsset, track, false);
}
else
{
trackAsset.AddChildAfter(trackAsset2, track);
}
result = true;
}
}
return(result);
}