Hi,
Maybe you can determine which way you are going with the axis (cheap way)
or you can use 'get rotation' store 'X Angle' in 'last location' then use 'Next Frame Event'
Then use 'get rotation' again and store 'X Angle' in 'Current Location' then use float compare
then set an event for each event (greater,less,equal)
and do what you need to do for each direction.
then loop back to 1st state.