Transform.h

// Copyright(c) 2019 - 2020, #Momo
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#pragma once

#include "Utilities/ECS/Component.h"
#include "Utilities/Math/Math.h"

namespace MxEngine
{
    class Transform
    {
        MAKE_COMPONENT(Transform);

        Vector3 translation = MakeVector3(0.0f);
        Vector3 scale = MakeVector3(1.0f);
        Quaternion rotation{ 1.0f, 0.0f, 0.0f, 0.0f };
        mutable Vector3 eulerRotation{ 0.0f };
        mutable Matrix4x4 transform{ 0.0f };
        mutable bool needTransformUpdate = true;
        mutable bool needRotationUpdate = true;
        mutable Matrix3x3 normalMatrix{ 0.0f };
    public:
        const Matrix4x4& GetMatrix() const;
        const Matrix3x3& GetNormalMatrix() const;
        void GetMatrix(Matrix4x4& inPlaceMatrix) const;
        void GetNormalMatrix(const Matrix4x4& model, Matrix3x3& inPlaceMatrix) const;

        const Vector3& GetTranslation() const;
        const Quaternion& GetRotation() const;
        const Vector3& GetScale() const;
        const Vector3& GetEulerRotation() const;
        const Vector3& GetPosition() const;

        Transform& SetTranslation(const Vector3& dist);
        Transform& SetRotation(float angle, const Vector3& axis);
        Transform& SetRotation(const Quaternion& q);
        Transform& SetScale(const Vector3& scale);
        Transform& SetScale(float scale);
        Transform& SetPosition(const Vector3& position);

        Transform& Scale(float scale);
        Transform& Scale(const Vector3& scale);
        Transform& ScaleX(float scale);
        Transform& ScaleY(float scale);
        Transform& ScaleZ(float scale);

        Transform& Rotate(float angle, const Vector3& axis);
        Transform& Rotate(const Quaternion& q);
        Transform& RotateX(float angle);
        Transform& RotateY(float angle);
        Transform& RotateZ(float angle);

        Transform& Translate(const Vector3& dist);
        Transform& TranslateX(float x);
        Transform& TranslateY(float y);
        Transform& TranslateZ(float z);

        Transform& TranslateForward(float dist);
        Transform& TranslateRight(float dist);
        Transform& TranslateUp(float dist);

        Transform& LookAt(const Vector3& point);
        Transform& LookAtXY(const Vector3& point);
        Transform& LookAtXZ(const Vector3& point);
        Transform& LookAtYZ(const Vector3& point);
    };
}