/// <summary>
/// Gets the rotation of a point along the line at the specified length
/// </summary>
/// <param name="normalizedLength"></param>
/// <param name="rotationType"></param>
/// <returns></returns>
public Quaternion GetRotation(float normalizedLength, LineUtils.RotationTypeEnum rotationType = LineUtils.RotationTypeEnum.None)
{
rotationType = (rotationType != LineUtils.RotationTypeEnum.None) ? rotationType : RotationType;
Vector3 rotationVector = Vector3.zero;
switch (rotationType)
{
case LineUtils.RotationTypeEnum.None:
default:
break;
case LineUtils.RotationTypeEnum.Velocity:
rotationVector = GetVelocity(normalizedLength);
break;
case LineUtils.RotationTypeEnum.RelativeToOrigin:
Vector3 point = GetPoint(normalizedLength);
Vector3 origin = transform.TransformPoint(OriginOffset);
rotationVector = (point - origin).normalized;
break;
}
if (rotationVector.magnitude < MinRotationMagnitude)
{
return(transform.rotation);
}
Vector3 upVector = GetUpVectorInternal(normalizedLength);
if (ManualUpVectorBlend > 0f)
{
Vector3 manualUpVector = LineUtils.GetVectorCollectionBlend(ManualUpVectors, normalizedLength, Loops);
upVector = Vector3.Lerp(upVector, manualUpVector, manualUpVector.magnitude);
}
if (FlipUpVector)
{
upVector = -upVector;
}
return(Quaternion.LookRotation(rotationVector, upVector));
}
protected override Vector3 GetPointInternal(int pointIndex)
{
float angle = ((float)pointIndex / Resolution) * 2f * Mathf.PI;
return(LineUtils.GetEllipsePoint(Radius.x, Radius.y, angle));
}
protected override Vector3 GetPointInternal(float normalizedDistance)
{
return(LineUtils.GetEllipsePoint(Radius.x, Radius.y, normalizedDistance * 2f * Mathf.PI));
}
