FollowCurveTarget.CatmullRom(UnityEngine.Vector2, UnityEngine.Vector2, UnityEngine.Vector2, UnityEngine.Vector2, float, float)

void FixedUpdate ()
	{
        if (CurveDuration < Mathf.Epsilon)
            return;

		var curvePointCount = CurvePoints.Length;
		if (curvePointCount < 2)
		{
			m_CurveTime = 0.0f;
			m_Joint.target = transform.position;
			return;
		}

		m_CurveTime += Time.deltaTime;

		while (m_CurveTime > CurveDuration)
			m_CurveTime -= CurveDuration;

		var start = (int)((curvePointCount / CurveDuration) * m_CurveTime);
		var end = start < (curvePointCount-1) ? start+1 : 0;
		var previous = start > 0 ? start-1 : curvePointCount-1;
		var next = end < (curvePointCount-1) ? end+1 : 0;

		var unitDuration = CurveDuration / curvePointCount;
		var unitElapsedTime = m_CurveTime - (start * unitDuration);

		var samplePoint = CatmullRom (CurvePoints[previous], CurvePoints[start], CurvePoints[end], CurvePoints[next], unitElapsedTime, unitDuration);
		m_Joint.target = samplePoint;
	}