Transform2.h

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/*************************************************************************
> File Name: Transform2.h
> Project Name: CubbyFlow
> Author: Chan-Ho Chris Ohk
> Purpose: Represents 2-D rigid body transform.
> Created Time: 2017/03/29
> Copyright (c) 2018, Chan-Ho Chris Ohk
*************************************************************************/
#ifndef CUBBYFLOW_TRANSFORM2_H
#define CUBBYFLOW_TRANSFORM2_H

#include <Core/BoundingBox/BoundingBox2.h>
#include <Core/Ray/Ray2.h>
#include <Core/Vector/Vector2.h>

namespace CubbyFlow
{
    class Transform2
    {
    public:
        Transform2();

        Transform2(const Vector2D& translation, double orientation);

        const Vector2D& GetTranslation() const;

        void SetTranslation(const Vector2D& translation);

        double GetOrientation() const;

        void SetOrientation(double orientation);

        Vector2D ToLocal(const Vector2D& pointInWorld) const;

        Vector2D ToLocalDirection(const Vector2D& dirInWorld) const;

        Ray2D ToLocal(const Ray2D& rayInWorld) const;

        BoundingBox2D ToLocal(const BoundingBox2D& bboxInWorld) const;

        Vector2D ToWorld(const Vector2D& pointInLocal) const;

        Vector2D ToWorldDirection(const Vector2D& dirInLocal) const;

        Ray2D ToWorld(const Ray2D& rayInLocal) const;

        BoundingBox2D ToWorld(const BoundingBox2D& bboxInLocal) const;

    private:
        Vector2D m_translation;
        double m_orientation = 0.0;
        double m_cosAngle = 1.0;
        double m_sinAngle = 0.0;
    };
}

#endif