Twin Stick Shooter?

 I'm trying to allow the player to aim with one of the analog sticks on a controller, but while I've got all the other functions working with a controller, I'm kind of stumped.  Best I can come up with is eight direction firing.  Is there a way to have the game detect the direction of the stick and fire in that direction?  Or is there another way of doing it I'm not thinking of?

As far as I can tell, you can use the "pressure for control" block, and do some math between two analog controls to find the angle between them.

Wow, really?  I've just been using it to manage the sensitivity of the analog sticks.