// If you want to make a full featured game, you can.
// This is the basic framework that sets up a 2 stage game.

// Stage is a specialized state
Stage = function(){};
Stage.prototype = Engine.extend(Engine.State, {
  enter : function() {
    // what happens on entering this stage
  },

  run    : function() {
    // runs every loop for this stage
    if(this.isStageEnded()){
      this.game.advanceStage();
    }
  },

  exit   : function() {
   // what happens on exiting this stage
  }
});

// Game Inherits from StateMachine
Game = function(){};
Game.prototype = Engine.extend(Engine.StateMachine.prototype, {
  init : funciton(){
    // instantiate 2 stages
    stage1 = new Stage("stage1");
    stage2 = new Stage("stage2");

    // add stages to state machine
    this.addState(stage1);
    this.addState(stage2);

    // set transition rules
    // this means from stage1 can only advance to stage2
    this.addTransition("advanceStage", stage1, stage2);

    // set initial stage
    this.setInitialState("stage1");
  },
  // runs the current state
  run  :  function(){
    this.getCurrentState().run();
  }
});