Reverse rolling stock orientation

[sparr]

I want to be able to write to .orientation, specifically the opposite of its current orientation, for rolling stock and get the same result as doing a [R]otate GUI interaction with it.

[Rseding91]

You can already do that by calling entity.rotate() on any rolling stock.

[sparr]

That means my entity-rotation code needs a special case for rolling stock, the only smooth-orientable entity that doesn't allow reversing by writing to .orientation :/