private void _AddPoint(CatmullRomUniform spline)
{
MUndo.RecordObject(target, "add point");
MUndo.RecordObject(this, "add point");
if (m_curPtIdx < 0)
{
m_curPtIdx = spline.PointCount - 1;
}
if (m_curPtIdx != spline.PointCount - 1)
{
float v = (float)m_curPtIdx + 0.5f;
Vector3 newPos = spline.Interp(v / (spline.PointCount - 1));
spline.InsertPointAfter(m_curPtIdx, newPos);
}
else
{
float unitLen = spline.CurveLength / (spline.PointCount - 1);
Vector3 dir = spline.Tangent(1f);
spline.InsertPointAfter(m_curPtIdx, spline[m_curPtIdx] + dir * unitLen);
}
m_curPtIdx++;
}
