protected virtual void EnsureMaskClean()
{
if (_distanceMask == null || _distanceMask.Count <= 0)
{
_distanceMask = new PathDistanceMask(SmoothPoints, _mapToSmooth, _closed);
}
}
public List <Vector2> GetSubPathDistance(float aStart, float aLength)
{
PathDistanceMask mask = DistanceMask;
float totalDist = mask.GetTotalDistance();
float left = Mathf.Clamp(aStart, 0, totalDist);
float right = Mathf.Clamp(aStart + aLength, 0, totalDist);
List <Vector2> source = GetFinalPath();
float p1 = 0;
int index1 = mask.GetRawPointIndexAtDistance(left, out p1, _closed);
float p2 = 0;
int index2 = mask.GetRawPointIndexAtDistance(right, out p2, _closed);
List <Vector2> result = new List <Vector2>((index2 - index1) + 2);
if (p1 != 0)
{
result.Add(PathUtil.GetBezierPoint(index1, p1, _points, PointControls, Closed));
}
if (index2 - index1 > 0)
{
result.AddRange(source.GetRange(index1 + 1, (index2 - (index1 + 1))));
}
if (p2 != 0)
{
result.Add(PathUtil.GetBezierPoint(index2, p2, _points, PointControls, Closed));
}
return(result);
}