public TrackNodeCurve getPreviousCurve(TrackNodeCurve current)
{
int index = nodes.IndexOf (current);
if (index - 1 < 0) {
var previousCurve = current.SegmentModify.GetPreviousSegment (true);
if (previousCurve != null)
return previousCurve.GetLastCurve;
}
return nodes [index - 1];
}
public TrackNodeCurve getNextCurve(TrackNodeCurve current)
{
int index = nodes.IndexOf (current);
if (index + 1 >= nodes.Count) {
var nextSegment = current.SegmentModify.GetNextSegment (true);
if (nextSegment != null)
return nextSegment.GetFirstCurve;
return null;
}
return nodes [index + 1];
}
