animation-timer.js

var AnimationTimer = {};

var _timerId = 0;
var _timerIds = {};

AnimationTimer.setInterval = function(callback, delay) {
  var timerId = ++_timerId;

  _timerIds[timerId] = setTimeout(function interval() {
    requestAnimationFrame(function() {
      callback();
      _timerIds[timerId] = setTimeout(interval, delay);
    });
  }, delay);
  
  return timerId;
};

AnimationTimer.clearInterval = function(timerId) {
  clearTimeout(_timerIds[timerId]);
};

AnimationTimer.setTimeout = function(callback, delay) {
  var timerId = ++_timerId;
  
  _timerIds[timerId] = setTimeout(function() {
    requestAnimationFrame(function() {
      callback();
    });
  }, delay);
  
  return timerId;
};

AnimationTimer.clearTimeout = function(timerId) {
  clearTimeout(_timerIds[timerId]);
};

module.exports AnimationTimer;