EntitySystem.hpp

#pragma once
 
#include <Entity.hpp>
#include <EntityFamily.hpp>
 
#include <SFML/System.hpp>
 
#include <memory>
#include <map>
 
// TODO: Refactor family filtering logic to a FilteredEntitySystem class.
class EntitySystem
{
public:
    EntitySystem();
 
    EntitySystem(const std::shared_ptr<EntityFamily> &family);
 
    virtual void engineEntityAdded(const std::shared_ptr<Entity> &entity);
 
    virtual void update(const sf::Time deltaTime) = 0;
 
protected:
    virtual std::map<int, std::shared_ptr<Entity>> getEntities() const;
 
private:
    std::shared_ptr<EntityFamily> _family;
    std::map<int, std::shared_ptr<Entity>> _entities;
};