Transformable.hpp

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//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2024 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
 
#pragma once

// Headers
#include <SFML/Graphics/Export.hpp>
 
#include <SFML/Graphics/Transform.hpp>
 
#include <SFML/System/Angle.hpp>
 
 
namespace sf
{
class SFML_GRAPHICS_API Transformable
{
public:
    Transformable() = default;

    virtual ~Transformable() = default;

    void setPosition(Vector2f position);

    void setRotation(Angle angle);

    void setScale(Vector2f factors);

    void setOrigin(Vector2f origin);

    [[nodiscard]] Vector2f getPosition() const;

    [[nodiscard]] Angle getRotation() const;

    [[nodiscard]] Vector2f getScale() const;

    [[nodiscard]] Vector2f getOrigin() const;

    void move(Vector2f offset);

    void rotate(Angle angle);

    void scale(Vector2f factor);

    [[nodiscard]] const Transform& getTransform() const;

    [[nodiscard]] const Transform& getInverseTransform() const;
 
private:
    // Member data
    Vector2f          m_origin;                           
    Vector2f          m_position;                         
    Angle             m_rotation;                         
    Vector2f          m_scale{1, 1};                      
    mutable Transform m_transform;                        
    mutable Transform m_inverseTransform;                 
    mutable bool      m_transformNeedUpdate{true};        
    mutable bool      m_inverseTransformNeedUpdate{true}; 
};
 
} // namespace sf