What are the best strategies for syncing music to object movement? The app I envision would have an underlying soundtrack with characters animating in time to the music. What I'm after is a strategy for having the soundtrack periodic send a message to an object, objects, triggering it to commence it's scripted movement.
Thanks, Doug
FMOD Ex should allow this sort of thing. It's not built-in, but it's relatively cheap.
The point is writing the object movement code so that it can use external clock signal. You can for example write the movement update method so that it takes a time delta:
- (void) updateMovementBy: (double) seconds {…}
In each loop you’ll poll the soundtrack player for current playback time, compute time delta from the last iteration and update the model. But of course a lot depends on what exactly you want to do in response to the music.