GameObject.hpp

#pragma once

#include "Model.hpp"

#include <memory>

namespace engine {

	struct Transform2DComponent {
		glm::vec2 translation{};
		glm::vec2 scale{ 1.f, 1.f };
		float rotation;
		glm::mat2 mat2() { 
			const float s = glm::sin(rotation);
			const float c = glm::cos(rotation);
			glm::mat2 rotMat{ {c,s}, {-s,c} };

			glm::mat2 scaleMat{ {scale.x, .0f}, {.0f, scale.y} };
			return rotMat*scaleMat;
		};
	};

	class GameObject
	{
	public:
		using id_t = unsigned int;

		static GameObject createGameObject() {
			static id_t currentId = 0;
			return GameObject(currentId++);
		}

		const id_t getId() { return id; };

		GameObject(const GameObject&) = delete;
		GameObject& operator=(const GameObject&) = delete;
		GameObject(GameObject&&) = default;
		GameObject& operator=(GameObject&&) = default;

		std::shared_ptr<Model> model{};
		glm::vec3 color{};
		Transform2DComponent transform2d{};

	private:
		GameObject(id_t objId) : id{ objId } {};

		id_t id;
	};
}