// Use this for initialization
void Start()
{
t = this.transform;
q = t.rotation;
if (curve != null)
{
curve.ResetCurve();
t.position = curve.GetCurvePoint();
}
}
public void OnSceneGUI()
{
spline = target as CatmullRomSpline;
t = spline.transform;
q = Tools.pivotRotation == PivotRotation.Local ? t.rotation : Quaternion.identity;
/* Draw control points for each curve */
for (int i = 0; i < spline.Curves; i += 3)
{
Vector3 point0 = ShowPoint(i);
Vector3 point1 = ShowPoint(i + 1);
Vector3 point2 = ShowPoint(i + 2);
Vector3 point3 = ShowPoint(i + 3);
Handles.color = Color.gray;
Handles.DrawLine(point0, point1);
Handles.DrawLine(point1, point2);
Handles.DrawLine(point2, point3);
}
/* Draw the curve */
for (int i = 0; i < spline.ControlPointsCount; ++i)
{
if ((i == 0 || i >= spline.ControlPointsCount - 2) && !spline.Loop)
{
continue;
}
else
{
int iMinusOne = i - 1, iPlusOne = i + 1, iPlusTwo = i + 2, points = spline.ControlPointsCount;
/* We only care on negative values */
if (i == 0)
{
iMinusOne = spline.ControlPointsCount - 1;
}
/* Handle the overflow by modding around the array */
iPlusOne = (i + 1) % points;
iPlusTwo = (i + 2) % points;
Vector3 p0 = t.TransformPoint(spline.GetPoint(iMinusOne));
Vector3 p1 = t.TransformPoint(spline.GetPoint(i));
Vector3 p2 = t.TransformPoint(spline.GetPoint(iPlusOne));
Vector3 p3 = t.TransformPoint(spline.GetPoint(iPlusTwo));
Vector3 startPoint = t.TransformPoint(spline.GetPoint(i));
Handles.color = Color.green;
Vector3 endPoint;
for (int j = 0; j < steps; ++j)
{
float norm = j / (float)steps;
endPoint = spline.GetCurvePoint(norm, p0, p1, p2, p3);
Handles.DrawLine(startPoint, endPoint);
startPoint = endPoint;
}
endPoint = spline.GetCurvePoint(1, p0, p1, p2, p3);
Handles.DrawLine(startPoint, endPoint);
}
}
}