Entity.hpp

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#pragma once
 
#include <string>
#include <memory>
#include <type_traits>
#include <libecs-cpp/Component.hpp>
#include <libecs-cpp/json.hpp>
 
namespace ecs
{
    class Container;
    class Component;
 
    class Entity
    {
      public:
        Entity(ecs::Container *container);
        Entity(ecs::Container *container, const std::string &handle);
        nlohmann::json Export() const;
        ecs::Container *Container;
        const std::string Handle;
        std::shared_ptr<ecs::Component> Component(std::unique_ptr<ecs::Component> component);
        template <class T = ecs::Component>
        std::shared_ptr<T> ComponentGet(const std::string &type) const
        {
            const std::shared_ptr<ecs::Component> *found = this->componentFind(type);
            if(found == nullptr)
            {
                return nullptr;
            }
            if constexpr(std::is_same_v<T, ecs::Component>)
            {
                return *found;
            }
            else
            {
                return std::dynamic_pointer_cast<T>(*found);
            }
        }
        bool ComponentHas(const std::string &type) const;
        void Destroy();
        void ComponentDestroy(const std::string &type);
      private:
        const std::shared_ptr<ecs::Component> *componentFind(const std::string &type) const;
    };
}