entity.hpp

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#pragma once
 
#include <flecs.h>
 
#include "scene.hpp"
 
namespace wren::scene {
 
class Scene;
 
class Entity {
 public:
  Entity(flecs::entity entity, const std::shared_ptr<Scene>& scene)
      : entity_(entity), scene_(scene) {}
 
  template <typename T>
  [[nodiscard]] auto has_component() const -> bool;
 
  template <typename T>
  auto get_component() -> T&;
 
  template <typename T, typename... Args>
  void add_component(Args&&... args);
 
 private:
  flecs::entity entity_;
 
  std::shared_ptr<Scene> scene_;
};
 
template <typename T>
auto Entity::has_component() const -> bool {
  // return scene_->world().all_of<T>();
}
 
template <typename T>
auto Entity::get_component() -> T& {
  return scene_->world().get<T>(entity_);
}
 
template <typename T, typename... Args>
void Entity::add_component(Args&&... args) {
  entity_.add<T>();
  entity_.set<T>(T(std::forward<Args>(args)...));
}
 
}  // namespace wren::scene