public Vector3 InterpolateNormalByLen(float tl)
{
float localF;
SplineControlPoint seg = LenToSegment(tl, out localF);
return(seg.InterpolateNormal(localF));
}
public SplineControlPoint LenToSegment(float t, out float localF)
{
SplineControlPoint seg = null;
t = Mathf.Clamp01(t);
float len = t * mSegments[mSegments.Count - 1].Dist;
int index = 0;
for (index = 0; index < mSegments.Count; index++)
{
if (mSegments[index].Dist >= len)
{
seg = mSegments[index];
break;
}
}
if (index == 0)
{
//skip the first frame.
localF = 0f;
return(seg);
}
float PrevLen = 0f;
int prevIdx = seg.SegmentIndex - 1;
SplineControlPoint prevSeg = mSegments[prevIdx];
PrevLen = seg.Dist - prevSeg.Dist;
localF = (len - prevSeg.Dist) / PrevLen;
return(prevSeg);
}
Vector3 GetNext2Position()
{
SplineControlPoint cp = NextControlPoint;
if (cp != null)
{
return(cp.NextPosition);
}
return(NextPosition);
}
Vector3 GetNext2Normal()
{
SplineControlPoint cp = NextControlPoint;
if (cp != null)
{
return(cp.NextNormal);
}
return(Normal);
}
public Vector3 PreviousPosition(SplineControlPoint controlpoint)
{
SplineControlPoint seg = PreviousControlPoint(controlpoint);
if (seg != null)
{
return(seg.Position);
}
else
{
return(controlpoint.Position);
}
}
public Vector3 NextPosition(SplineControlPoint controlpoint)
{
SplineControlPoint seg = NextControlPoint(controlpoint);
if (seg != null)
{
return(seg.Position);
}
else
{
return(controlpoint.Position);
}
}
public Vector3 NextNormal(SplineControlPoint controlpoint)
{
SplineControlPoint seg = NextControlPoint(controlpoint);
if (seg != null)
{
return(seg.Normal);
}
else
{
return(controlpoint.Normal);
}
}
public Vector3 PreviousNormal(SplineControlPoint controlpoint)
{
SplineControlPoint seg = PreviousControlPoint(controlpoint);
if (seg != null)
{
return(seg.Normal);
}
else
{
return(controlpoint.Normal);
}
}
public SplineControlPoint AddControlPoint(Vector3 pos, Vector3 up)
{
SplineControlPoint cp = new SplineControlPoint();
cp.Init(this);
cp.Position = pos;
cp.Normal = up;
mControlPoints.Add(cp);
cp.ControlPointIndex = mControlPoints.Count - 1;
return(cp);
}
public SplineControlPoint PreviousControlPoint(SplineControlPoint controlpoint)
{
if (mControlPoints.Count == 0)
{
return(null);
}
int i = controlpoint.ControlPointIndex - 1;
if (i < 0)
{
return(null);
}
else
{
return(mControlPoints[i]);
}
}
public SplineControlPoint NextControlPoint(SplineControlPoint controlpoint)
{
if (mControlPoints.Count == 0)
{
return(null);
}
int i = controlpoint.ControlPointIndex + 1;
if (i >= mControlPoints.Count)
{
return(null);
}
else
{
return(mControlPoints[i]);
}
}
