void FixedUpdate()
{
WheelHit groundHit;
wheel_col.GetGroundHit(out groundHit);
float wheelSlipAmount = Mathf.Abs(groundHit.sidewaysSlip);
if (wheelSlipAmount > startSlipValue) //if sideways slip is more than desired value
{
Vector3 skidPoint = groundHit.point + 2 * (skidCaller.rigidbody.velocity) * Time.deltaTime;
lastSkidmark = skidmarks.AddSkidMark(skidPoint, groundHit.normal, wheelSlipAmount / 25.0F, lastSkidmark);
}
else
{
lastSkidmark = -1;
}
}
