The one I linked the first time https://github.com/get-bonus/get-bonus/blob/master/exp/3s.rkt
and an example of its use https://github.com/get-bonus/get-bonus/blob/master/games/tennis/tennis.rkt Because the big-bang on-tick functions returns a list of sounds and sounds are really functions of the world state, you can easily have on going sounds by ensuring that it never returns #f (although you may wish to have different background music per "level", which would be a property of the world state) and transitory sounds by returning the "bump" noise whenever the ball hits the ground. You just need to return a sound function once and big bang will keep it in its sound list until it returns #f. So basically on the first frame you return the background sound and in future frames you return sounds appropriate to what is going on. Jay On Fri, Oct 21, 2011 at 2:38 AM, John Clements <cleme...@brinckerhoff.org> wrote: > > On Oct 20, 2011, at 3:34 PM, Jay McCarthy wrote: > >> FWIW, my sound system does all this. > > You know, jay, you have quite a good number of github trees :). Are you > referring to one of them here? > > John > > -- Jay McCarthy <j...@cs.byu.edu> Assistant Professor / Brigham Young University http://faculty.cs.byu.edu/~jay "The glory of God is Intelligence" - D&C 93 _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
