source: level2/competencies/FaceClassifier/src/SceneState.h @ 1706

// Copyright (C) 2009 foam
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

#include <iostream>
#include <map>
#include <yarp/os/all.h>

#ifndef SCENE_STATE
#define SCENE_STATE

/////////////////////////////////////////////////////////////////////////////////
// This class records who is present in the scene and keeps a record 
// from frame to frame in order to send changes over yarp

class SceneState
{
public:
        SceneState();
        ~SceneState();

        // User information. Not much here yet, maybe more one day
        class User
        {
        public:
                User() : m_Confidence(0) {}
                User(float c) : m_Confidence(c) {}
                ~User() {}
                
                float m_Confidence;
        };
        
        // Call this each frame with each detected user
        void AddPresent(unsigned int id, const User &u);
        
        // Call this once per frame to process and dispatch yarp bottles
        void Update();
        
private:

        void SendAppeared(unsigned int ID, const User &u);
        void SendDisappeared(unsigned int ID);

        yarp::os::Network m_YarpNetwork;
        yarp::os::Port m_YarpPort;

        std::map<unsigned int, User> m_CurrentFrame;
        std::map<unsigned int, User> m_LastFrame;
};

#endif