Game Model Turntable

Description:

Hello everybody ;-)

From time to time I give a free workshop on using Blender, together with the friends of Linuxbabbel.be. Last time we took a look at the game engine. We modelled a rim and tyre using Curves. We textured them, gave a bit of bumpmapping, done some UV unwrapping and finally took the model in to the game engine, where we made a turntable. Added some lamps, parented some objects, gave it some logic, et voila, a turntable.

I'm still puzzelled about one thing. I'm trying to make the rotation of the rim more controlable. I want it to start turning, on and on when I press Space, and Pause when I hit Ctrl. When I then press space again the animation picks up where it stopped. However, I can not make it work, some if some of you have any ideas, help would be much appreciated.