#ifndef HYDRASYSTEM
#define HYDRASYSTEM

#include "../engine/HydraObject.h"

#include <set>

class HydraSystem : public HydraObject
{
    public:
        std::set<HydraID> Entities;
        std::set<HydraID> EntitiesToCreate;
        std::set<HydraID> EntitiesToDelete;

        void Update(float delta_t_seconds);
        void InitialiseComponents();   
        void DeleteComponents();    
        void DeleteComponent(HydraID actor_id);
        virtual void InitialiseComponent(HydraID actor_id) {};
        
        virtual void Shutdown();
        virtual void Initialise(){};
    protected:
        
        virtual void UpdateSystem(float delta_t_seconds) = 0;        
        virtual void DestroyComponent(HydraID actor_id) {};
        virtual void FreeSystemResources(){};
};

#endif /* HYDRASYSTEM */