Entity.hpp

Go to the documentation of this file.

#pragma once
 
#include "EntityToIDString.hpp"
#include "Id.hpp"
#include "Logger.hpp"
#include "core/Core.hpp"
#include "entity/EntityId.hpp"
#include <entt/entt.hpp>
#include <typeindex>
 
namespace Engine {

class Entity {
  public:
    Entity(Core &core, EntityId entityId);

    ~Entity() = default;

    bool IsAlive() const;

    EntityId Id() const;

    explicit(false) operator EntityId() const;

    void Kill();

    template <typename TComponent> decltype(auto) AddComponent(TComponent &&component);

    template <typename TComponent, typename... TArgs> decltype(auto) AddComponent(TArgs &&...args);

    template <typename TComponent, typename... TArgs> decltype(auto) AddComponentIfNotExists(TArgs &&...args);

    template <typename TTempComponent, typename... TArgs> decltype(auto) AddTemporaryComponent(TArgs &&...args);

    static void RemoveTemporaryComponents(Core &core);

    template <typename TComponent> void RemoveComponent();

    template <typename... TComponent> bool HasComponents() const;

    template <typename... TComponent> decltype(auto) GetComponents();

    template <typename... TComponent> decltype(auto) GetComponents() const;

    template <typename TComponent> decltype(auto) TryGetComponent();

    bool operator==(const Entity &rhs) const;

    bool operator==(const EntityId &rhs) const;
 
  private:
    Core &GetCore() const;

    std::reference_wrapper<Core> _core;
    EntityId _entityId;
};
 
} // namespace Engine

template <> struct fmt::formatter<Engine::Entity> : fmt::formatter<Engine::EntityId> {
    template <typename FormatContext> auto format(const Engine::Entity &entity, FormatContext &ctx) const;
};
 
#include "entity/Entity.ipp"