text: //
  //  Universe.hpp
  //  Pods
  //
  //  Created by JIRENTIANXIANG on 7/3/16.
  //
  //
  
  #ifndef Universe_hpp
  #define Universe_hpp
  
  #include "Layer.h"
  
  BEGIN_NAMESPACE_FRAMEWORKX
  
  class Universe
  {
  public:
      void addLayer(Layer* layer);
      bool removeLayer(Layer* layer);
  private:
      vector<Layer*> layers;
  };
  
  END_NAMESPACE_FRAMEWORKX
  
  #endif /* Universe_hpp */
  