[vtkusers] Video Game Style Interactor?

[Ben Hughes]

I was wondering whether there was an interactor style that would allow
for a control scheme similar to that of various first person shooters.
 I believe that the flight control through "WASD" that is available in
games like Counter Strike and Unreal Tournament for the purpose of
exploring the map would be an excellent tool for certain sorts of
visualization (satellite data for instance).  I am curious as to
whether this has been implemented before and if not, how hard are
these InteractorStyles to craft.

Ben Hughes