Scheduler.h

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/***************************************************************************
                          Scheduler.h  -  description
                             -------------------
    begin                : February 2004
    copyright            : (C) 2004 by Jan Flasar
    email                : flasar@fi.muni.cz
 ***************************************************************************/

#ifndef SCHEDULER_H
#define SCHEDULER_H

#include <vrecko/Export>
#include <vrecko/BaseClass.h>
#include <vrecko/vThread.h>

#include <map>
#include <vector>


namespace vrecko {

#define FRAME_FREQUENCY -1.0

class World;

class VRECKO_EXPORT Scheduler {
    public:
        Scheduler();
        ~Scheduler();
        Scheduler(Scheduler &s);
        
        void update(void);
        
        void start(void);
        void stop(void);
        

        void addEntity(BaseClass *ent, float frequency = FRAME_FREQUENCY);

        void addEntity(BaseClass *ent, const std::string &private_timer_name, float frequency = FRAME_FREQUENCY);

        void removeEntity(BaseClass *ent);

        bool isEntityPresent(BaseClass *ent);

        bool getState() {return state;}

        void resetObjectUpdatesCounter() { iObjectUpdatesCounter = 0; }

        int getObjectUpdatesCounter() { return iObjectUpdatesCounter; }
        
    protected:
        typedef struct {
            float frequency;
            vThread *thread_ptr;
            osg::Timer_t last_tick;
            std::vector<BaseClass*> entity_vector;
        } TimerStruct;
        typedef std::map<float, TimerStruct > TimerMap;
        TimerMap timer_map;
        typedef std::map<std::string, TimerStruct > PrivateTimerMap;
        PrivateTimerMap private_timer_map;
        bool state;

        int iObjectUpdatesCounter; 

        struct classcomp {
            bool operator() (const long int &lhs, const long int &rhs) const {return lhs > rhs;}
        };

        std::multimap<long int, BaseClass*, classcomp> updateMMap;

};

}

#endif