/// <summary>Get the tangent of the curve at a point along the path.</summary>
/// <param name="pos">Postion along the path. Need not be normalized.</param>
/// <returns>World-space direction of the path tangent.
/// Length of the vector represents the tangent strength</returns>
public override Vector3 EvaluateTangent(float pos)
{
Vector3 result = new Vector3();
if (m_Waypoints.Length == 0)
{
result = transform.rotation * Vector3.forward;
}
else
{
int indexA, indexB;
pos = GetBoundingIndices(pos, out indexA, out indexB);
if (indexA == indexB)
{
result = m_Waypoints[indexA].tangent;
}
else
{
Waypoint wpA = m_Waypoints[indexA];
Waypoint wpB = m_Waypoints[indexB];
result = SplineHelpers.BezierTangent3(pos - indexA,
m_Waypoints[indexA].position, wpA.position + wpA.tangent,
wpB.position - wpB.tangent, wpB.position);
}
}
return(transform.TransformDirection(result));
}
public override Vector3 EvaluateTangent(float pos)
{
Vector3 direction = default(Vector3);
if (this.m_Waypoints.Length == 0)
{
direction = base.transform.rotation * Vector3.forward;
}
else
{
int num;
int num2;
pos = this.GetBoundingIndices(pos, out num, out num2);
if (num == num2)
{
direction = this.m_Waypoints[num].tangent;
}
else
{
CinemachinePath.Waypoint waypoint = this.m_Waypoints[num];
CinemachinePath.Waypoint waypoint2 = this.m_Waypoints[num2];
direction = SplineHelpers.BezierTangent3(pos - (float)num, this.m_Waypoints[num].position, waypoint.position + waypoint.tangent, waypoint2.position - waypoint2.tangent, waypoint2.position);
}
}
return(base.transform.TransformDirection(direction));
}
/// <summary>
/// 根据序号获取路径上的方向
/// </summary>
/// <param name="pos">序号</param>
/// <returns>全局方向</returns>
public override Vector3 EvaluateTangent(float pos)
{
Vector3 result = transform.rotation * Vector3.forward;
if (m_Waypoints.Length > 1)
{
UpdateControlPoints();
pos = GetBoundingIndices(pos, out int indexA, out int indexB);
if (!Looped && indexA == m_Waypoints.Length - 1)
{
--indexA;
}
result = SplineHelpers.BezierTangent3(pos - indexA,
m_Waypoints[indexA].position, m_ControlPoints1[indexA].position,
m_ControlPoints2[indexA].position, m_Waypoints[indexB].position);
}
return(transform.TransformDirection(result));
}
public override Vector3 EvaluateTangent(float pos)
{
Vector3 direction = base.transform.rotation * Vector3.forward;
if (this.m_Waypoints.Length > 1)
{
this.UpdateControlPoints();
int num;
int num2;
pos = this.GetBoundingIndices(pos, out num, out num2);
if (!this.Looped && num == this.m_Waypoints.Length - 1)
{
num--;
}
direction = SplineHelpers.BezierTangent3(pos - (float)num, this.m_Waypoints[num].position, this.m_ControlPoints1[num].position, this.m_ControlPoints2[num].position, this.m_Waypoints[num2].position);
}
return(base.transform.TransformDirection(direction));
}
