void VehicleAddForceImpulse(Vector3 pImpulse)
{
if ((m_knownHas & m_knownChangedForceImpulse) == 0)
{
m_knownForceImpulse = Vector3.Zero;
m_knownHas |= m_knownChangedForceImpulse;
}
m_knownForceImpulse += pImpulse;
m_knownChanged |= m_knownChangedForceImpulse;
}