Engine/IObservable.h

/*
 * IObservable.h
 *
 *  Created on: 28-11-2010
 *      Author: marcin
 */

#ifndef IOBSERVABLE_H_
#define IOBSERVABLE_H_

#include "ISubject.h"
#include "INotifiable.h"
#include <vector>
#include <algorithm>

class IObservable: public ISubject
{
        public:
         ~IObservable(){};

         Type getType(){ return ISubject::State; };
                void notifySubscribers()
                {
                          for (std::vector<INotifiable *>::iterator it=observers.begin(); it<observers.end(); it++)
                          {
                                  (*it)->processNotification(this);
                          }

                };

         void subscribe(INotifiable *observer)
                {
                        observers.push_back(observer);

                };

         void unSubscribe(INotifiable *observer)
                {

                        std::vector<INotifiable *>::iterator  it = find (observers.begin(), observers.end(), observer);
                        observers.erase(it);

                };

        private:
         std::vector<INotifiable *> observers;
};

#endif /* IOBSERVABLE_H_ */