transform.h

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#pragma once
#include <engine/public/util/vector3.h>
 
#include <memory>
#include <optional>
 
class Transform {
 private:
  Vector3 local_position_;
  float rotation_{};
  Vector3 scale_;
  std::optional<std::reference_wrapper<Transform>> parent_;
 
 public:
  Transform();
  explicit Transform(Vector3 position);
  Transform(Vector3 position, float rotation, Vector3 scale);
  Transform(Vector3 position, float rotation, Vector3 scale,
            std::optional<std::reference_wrapper<Transform>> parent);
 
  [[nodiscard]] Vector3 local_position() const noexcept;
 
  Transform& local_position(const Vector3& pos) noexcept;
 
  [[nodiscard]] Vector3 position() const noexcept;
 
  Transform& position(const Vector3& pos) noexcept;
 
  Transform& rotation(float rot) noexcept;
 
  [[nodiscard]] float rotation() const noexcept;
 
  Transform& scale(Vector3 scale) noexcept;
 
  [[nodiscard]] Vector3 scale() const noexcept;
 
  Transform& parent(
      std::optional<std::reference_wrapper<Transform>> parent) noexcept;
 
  [[nodiscard]] std::optional<std::reference_wrapper<Transform>> parent()
      const noexcept;
};