public float enqueueCinematicEvent(CinematicEvent cinematicEvent) {
        float scheduleTime = nextEnqueue;
        addCinematicEvent(scheduleTime, cinematicEvent);
        nextEnqueue += cinematicEvent.getInitialDuration();
        return scheduleTime;
    }
Enqueue a cinematic event to a Cinematic. This is handy when you
want to chain events without knowing their durations.

@param cinematicEvent the cinematic event to enqueue
@return the timestamp the event was scheduled.
jme3-core/src/main/java/com/jme3/cinematic/Cinematic.java