/// <summary>
/// Allows you to create a track and add it to the Timeline.
/// </summary>
/// <param name="type">The type of track to create. Must derive from TrackAsset.</param>
/// <param name="parent">Track to parent to. This can be null.</param>
/// <param name="name">Name to give the track.</param>
/// <returns>The created track.</returns>
/// <remarks>
/// This method will throw an InvalidOperationException if the parent is not valid. The parent can be any GroupTrack, or a supported parent type of track. For example, this can be used to create override tracks in AnimationTracks.
/// </remarks>
public TrackAsset CreateTrack(Type type, TrackAsset parent, string name)
{
if (parent != null && parent.timelineAsset != this)
{
throw new InvalidOperationException("Addtrack cannot parent to a track not in the Timeline");
}
if (!typeof(TrackAsset).IsAssignableFrom(type))
{
throw new InvalidOperationException("Supplied type must be a track asset");
}
if (parent != null)
{
if (!TimelineCreateUtilities.ValidateParentTrack(parent, type))
{
throw new InvalidOperationException("Cannot assign a child of type " + type.Name + " to a parent of type " + parent.GetType().Name);
}
}
var actualParent = parent != null ? parent as PlayableAsset : this;
TimelineUndo.PushUndo(actualParent, "Create Track");
var baseName = name;
if (string.IsNullOrEmpty(baseName))
{
baseName = type.Name;
#if UNITY_EDITOR
baseName = UnityEditor.ObjectNames.NicifyVariableName(baseName);
#endif
}
var trackName = baseName;
if (parent != null)
{
trackName = TimelineCreateUtilities.GenerateUniqueActorName(parent.subTracksObjects, baseName);
}
else
{
trackName = TimelineCreateUtilities.GenerateUniqueActorName(trackObjects, baseName);
}
TrackAsset newTrack = AllocateTrack(parent, trackName, type);
if (newTrack != null)
{
newTrack.name = trackName;
TimelineCreateUtilities.SaveAssetIntoObject(newTrack, actualParent);
}
return(newTrack);
}
public TrackAsset CreateTrack(Type type, TrackAsset parent, string name)
{
if (parent != null && parent.timelineAsset != this)
{
throw new InvalidOperationException("Addtrack cannot parent to a track not in the Timeline");
}
if (!typeof(TrackAsset).IsAssignableFrom(type))
{
throw new InvalidOperationException("Supplied type must be a track asset");
}
if (parent != null)
{
if (!TimelineCreateUtilities.ValidateParentTrack(parent, type))
{
throw new InvalidOperationException("Cannot assign a child of type " + type.Name + "to a parent of type " + parent.GetType().Name);
}
}
PlayableAsset masterAsset = (!(parent != null)) ? this : parent;
string text = name;
if (string.IsNullOrEmpty(text))
{
text = type.Name;
}
string text2;
if (parent != null)
{
text2 = TimelineCreateUtilities.GenerateUniqueActorName(parent.subTracksObjects, text);
}
else
{
text2 = TimelineCreateUtilities.GenerateUniqueActorName(this.trackObjects, text);
}
TrackAsset trackAsset = this.AllocateTrack(parent, text2, type);
if (trackAsset != null)
{
trackAsset.name = text2;
TimelineCreateUtilities.SaveAssetIntoObject(trackAsset, masterAsset);
}
return(trackAsset);
}
