ThreeLab/Engine/Components/TransformComponent.h

#ifndef TRANSFORM_COMPONENT_H
#define TRANSFORM_COMPONENT_H

#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>
#include <yaml-cpp/yaml.h>

class TransformComponent {
public:
    TransformComponent();
    ~TransformComponent();

    glm::vec3 position;
    glm::vec3 rotation; // Euler angles (pitch, yaw, roll) in degrees.
    glm::vec3 scale;

    // Returns the world transform matrix.
    glm::mat4 GetMatrix() const;

    // Save this transform to a YAML node.
    YAML::Node Save() const {
        YAML::Node node;
        node["position"] = YAML::Node();
        node["position"].push_back(position.x);
        node["position"].push_back(position.y);
        node["position"].push_back(position.z);

        node["rotation"] = YAML::Node();
        node["rotation"].push_back(rotation.x);
        node["rotation"].push_back(rotation.y);
        node["rotation"].push_back(rotation.z);

        node["scale"] = YAML::Node();
        node["scale"].push_back(scale.x);
        node["scale"].push_back(scale.y);
        node["scale"].push_back(scale.z);

        return node;
    }

    // Load this transform from a YAML node.
    void Load(const YAML::Node &node) {
        if (node["position"]) {
            position.x = node["position"][0].as<float>();
            position.y = node["position"][1].as<float>();
            position.z = node["position"][2].as<float>();
        }
        if (node["rotation"]) {
            rotation.x = node["rotation"][0].as<float>();
            rotation.y = node["rotation"][1].as<float>();
            rotation.z = node["rotation"][2].as<float>();
        }
        if (node["scale"]) {
            scale.x = node["scale"][0].as<float>();
            scale.y = node["scale"][1].as<float>();
            scale.z = node["scale"][2].as<float>();
        }
    }
};

#endif // TRANSFORM_COMPONENT_H