/// <summary>Get the orientation the curve at a point along the path.</summary>
/// <param name="pos">Position along the path. Need not be normalized.</param>
/// <returns>World-space orientation of the path, as defined by tangent, up, and roll.</returns>
public override Quaternion EvaluateOrientation(float pos)
{
Quaternion transformRot = transform.rotation;
Vector3 transformUp = transformRot * Vector3.up;
Quaternion result = transformRot;
if (m_Waypoints.Length > 0)
{
float roll = 0;
int indexA, indexB;
pos = GetBoundingIndices(pos, out indexA, out indexB);
if (indexA == indexB)
{
roll = m_Waypoints[indexA].roll;
}
else
{
UpdateControlPoints();
roll = SplineHelpers.Bezier1(pos - indexA,
m_Waypoints[indexA].roll, m_ControlPoints1[indexA].roll,
m_ControlPoints2[indexA].roll, m_Waypoints[indexB].roll);
}
Vector3 fwd = EvaluateTangent(pos);
if (!fwd.AlmostZero())
{
Quaternion q = Quaternion.LookRotation(fwd, transformUp);
result = q * RollAroundForward(roll);
}
}
return(result);
}
/// <summary>Get the orientation the curve at a point along the path.</summary>
/// <param name="pos">Postion along the path. Need not be normalized.</param>
/// <returns>World-space orientation of the path, as defined by tangent, up, and roll.</returns>
public override Quaternion EvaluateOrientation(float pos)
{
var result = transform.rotation;
if (m_Waypoints.Length > 0)
{
float roll = 0;
int indexA, indexB;
pos = GetBoundingIndices(pos, out indexA, out indexB);
if (indexA == indexB)
{
roll = m_Waypoints[indexA].roll;
}
else
{
UpdateControlPoints();
roll = SplineHelpers.Bezier1(pos - indexA,
m_Waypoints[indexA].roll, m_ControlPoints1[indexA].roll,
m_ControlPoints2[indexA].roll, m_Waypoints[indexB].roll);
}
var fwd = EvaluateTangent(pos);
if (!fwd.AlmostZero())
{
var up = transform.rotation * Vector3.up;
var q = Quaternion.LookRotation(fwd, up);
result = q * Quaternion.AngleAxis(roll, Vector3.forward);
}
}
return(result);
}
public override Quaternion EvaluateOrientation(float pos)
{
Quaternion result = base.transform.rotation;
if (this.m_Waypoints.Length != 0)
{
int num;
int num2;
pos = this.GetBoundingIndices(pos, out num, out num2);
float angle;
if (num == num2)
{
angle = this.m_Waypoints[num].roll;
}
else
{
this.UpdateControlPoints();
angle = SplineHelpers.Bezier1(pos - (float)num, this.m_Waypoints[num].roll, this.m_ControlPoints1[num].roll, this.m_ControlPoints2[num].roll, this.m_Waypoints[num2].roll);
}
Vector3 vector = this.EvaluateTangent(pos);
if (!vector.AlmostZero())
{
Vector3 upwards = base.transform.rotation * Vector3.up;
result = Quaternion.LookRotation(vector, upwards) * Quaternion.AngleAxis(angle, Vector3.forward);
}
}
return(result);
}
internal static float EvaluateDissipationScale(float spread, float normalizedDistance)
{
const float kMin = -0.8f;
const float kMax = 0.8f;
var b = kMin + (kMax - kMin) * (1f - spread);
b = (1f - b) * 0.5f;
var t = Mathf.Clamp01(normalizedDistance) / ((((1f / Mathf.Clamp01(b)) - 2f) * (1f - normalizedDistance)) + 1f);
return(1 - SplineHelpers.Bezier1(t, 0, 0, 1, 1));
}