public void RotateStructure(VRageMath.Quaternion quaternion)
{
// Rotate the ship/station in specified direction.
var o = CubeGrid.PositionAndOrientation.Value.ToQuaternion() * quaternion;
o.Normalize();
var p = new MyPositionAndOrientation(o.ToMatrix());
CubeGrid.PositionAndOrientation = new MyPositionAndOrientation
{
Position = CubeGrid.PositionAndOrientation.Value.Position,
Forward = p.Forward,
Up = p.Up
};
UpdateGeneralFromEntityBase();
}