} //end MoveAngular
internal void LimitRotation(float timestep)
{
SafeNativeMethods.Quaternion rot = SafeNativeMethods.BodyGetQuaternion(Body);
Quaternion rotq = new Quaternion(rot.X, rot.Y, rot.Z, rot.W); // rotq = rotation of object
SafeNativeMethods.Quaternion m_rot = new SafeNativeMethods.Quaternion();
bool changed = false;
m_rot.X = rotq.X;
m_rot.Y = rotq.Y;
m_rot.Z = rotq.Z;
m_rot.W = rotq.W;
if (m_RollreferenceFrame != Quaternion.Identity)
{
if (rotq.X >= m_RollreferenceFrame.X)
{
m_rot.X = rotq.X - (m_RollreferenceFrame.X / 2);
}
if (rotq.Y >= m_RollreferenceFrame.Y)
{
m_rot.Y = rotq.Y - (m_RollreferenceFrame.Y / 2);
}
if (rotq.X <= -m_RollreferenceFrame.X)
{
m_rot.X = rotq.X + (m_RollreferenceFrame.X / 2);
}
if (rotq.Y <= -m_RollreferenceFrame.Y)
{
m_rot.Y = rotq.Y + (m_RollreferenceFrame.Y / 2);
}
changed = true;
}
if ((m_flags & VehicleFlag.LOCK_ROTATION) != 0)
{
m_rot.X = 0;
m_rot.Y = 0;
changed = true;
}
if (changed)
{
SafeNativeMethods.BodySetQuaternion(Body, ref m_rot);
}
}