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++;
}
private void DrawPoints(CatmullRomUniform spline, Transform tr)
{
if (!ms_drawPts)
{
return;
}
Camera sceneViewCam = Camera.current;
Transform camTr = sceneViewCam.transform;
// draw point and selection
EUtil.PushHandleColor(SplineConst.SplinePtColor);
for (int i = 0; i < spline.PointCount; ++i)
{
if (spline.Cycle && i == spline.PointCount - 1) //don't draw button for last point if is cycle
{
continue;
}
bool isSelPoint = false;
if (i == m_curPtIdx)
{
isSelPoint = true;
EUtil.PushHandleColor(Handles.selectedColor);
}
Vector3 pt = tr.TransformPoint(spline[i]);
if (Handles.Button(pt, camTr.rotation, ms_ptSize, ms_ptSize, Handles.DotCap))
{
m_curPtIdx = i;
Repaint();
}
if (isSelPoint)
{
EUtil.PopHandleColor();
}
}
EUtil.PopHandleColor();
if (ms_foldoutTSlider)
{
Vector3 tPos = tr.TransformPoint(spline.Interp(m_tSlider));
Handles.CircleCap(GUIUtility.GetControlID(FocusType.Passive), tPos, camTr.rotation, ms_ptSize);
}
}