System.hpp

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#ifndef GALAXY_SYSTEMS_SYSTEM_HPP_
#define GALAXY_SYSTEMS_SYSTEM_HPP_
 
#include <concepts>
#include <string>
 
#include "galaxy/entity/Registry.hpp"
 
namespace galaxy
{
    class System
    {
    public:
        System(System&&) noexcept;
 
        System& operator=(System&&) noexcept;
 
        virtual ~System() noexcept;
 
        virtual void update(Registry& registry) = 0;
 
        [[nodiscard]]
        const std::string& id() const noexcept;
 
    protected:
        System(const std::string& id) noexcept;
 
    private:
        System() = delete;
 
        System& operator=(const System&) = delete;
        System(const System&) = delete;
 
    protected:
        std::string m_id;
    };
 
    namespace meta
    {
        template<typename Type>
        concept is_system = std::derived_from<Type, System>;
    } // namespace meta
} // namespace galaxy
 
#endif