Reactor.js

(function(a){
  var Reactor = a.Reactor = new function(){
    var self = this;

    self.__core__ = [];
    self.__pid__ = 0;
    self.__speed__ = 750;

    // Controls
    self.adjustSpeed = function(speed) {
      var defaultSpeed = self.__speed__;
      self.__speed__ = speed;
      self.restart();
      setTimeout(function() {self.__speed__ = defaultSpeed;}, 100);
    };

    self.start = function() {
      self.__pid__ = setInterval(self.tick, self.__speed__);
    };

    self.stop = function() {
      clearInterval(self.__pid__);
      self.__pid__ = 0;
    };

    self.restart = function() {
      self.stop();
      self.start();
    };

    // Interface
    self.push = function(arg) {
      self.__core__.push(arg);
      App.log('pushed to Reactor', arg);
    };

    self.running = function() {
      return self.__pid__ !== 0;
    };

    self.tick = function() {
      if(self.__core__.length > 0) {
        self.__core__.shift()();
      }
    };
  }
})(App);