runtiming.js

function runTiming(clock, value, dest) {
  const state = {
    finished: new Value(0),
    position: value, 
    time: new Value(0),
    frameTime: new Value(0),
  };

  const config = {
    duration: 1000,
    toValue: dest, 
    easing: Easing.inOut(Easing.cubic), 
  };
  
  return block([
   
    cond(clockRunning(clock), 0, [
   
      set(state.finished, 0), 
      set(state.time, 0),
      set(state.position, value),
      set(state.frameTime, 0),
      set(config.toValue, dest),
      startClock(clock),
    ]),
    timing(clock, state, config),
    cond(state.finished, debug('stop clock', stopClock(clock))), 
    state.position,
  ]);
}