eepp/include/eepp/math/transform.hpp

#ifndef EE_MATH_TRANSFORM_HPP
#define EE_MATH_TRANSFORM_HPP

#include <eepp/config.hpp>
#include <eepp/math/rect.hpp>
#include <eepp/math/vector2.hpp>

namespace EE { namespace Math {

class EE_API Transform {
  public:
	Transform();

	Transform( float a00, float a01, float a02, float a10, float a11, float a12, float a20,
			   float a21, float a22 );

	const float* getMatrix() const;

	Transform getInverse() const;

	Vector2f transformPoint( float x, float y ) const;

	Vector2f transformPoint( const Vector2f& point ) const;

	Rectf transformRect( const Rectf& rectangle ) const;

	Transform& combine( const Transform& transform );

	Transform& translate( float x, float y );

	Transform& translate( const Vector2f& offset );

	Transform& rotate( float angle );

	Transform& rotate( float angle, float centerX, float centerY );

	Transform& rotate( float angle, const Vector2f& center );

	Transform& scale( float scaleX, float scaleY );

	Transform& scale( float scaleX, float scaleY, float centerX, float centerY );

	Transform& scale( const Vector2f& factors );

	Transform& scale( const Vector2f& factors, const Vector2f& center );

	static const Transform Identity;

  private:
	float mMatrix[16];
};

EE_API Transform operator*( const Transform& left, const Transform& right );

EE_API Transform& operator*=( Transform& left, const Transform& right );

EE_API Vector2f operator*( const Transform& left, const Vector2f& right );

EE_API bool operator==( const Transform& left, const Transform& right );

EE_API bool operator!=( const Transform& left, const Transform& right );

}} // namespace EE::Math

#endif