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-////////////////////////////////////////////////////////////
-//
-// SFML - Simple and Fast Multimedia Library
-// Copyright (C) 2007-2009 Laurent Gomila (laurent.gom@gmail.com)
-//
-// 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.
-//
-////////////////////////////////////////////////////////////
-
-#ifndef SFML_MATRIX3_HPP
-#define SFML_MATRIX3_HPP
-
-////////////////////////////////////////////////////////////
-// Headers
-////////////////////////////////////////////////////////////
-#include <SFML/Config.hpp>
-#include <SFML/System/Vector2.hpp>
-#include <math.h>
-
-
-namespace sf
-{
-////////////////////////////////////////////////////////////
-/// Utility class to manipulate 3x3 matrices representing
-/// 2D transformations
-////////////////////////////////////////////////////////////
-class SFML_API Matrix3
-{
-public :
-
- ////////////////////////////////////////////////////////////
- /// Default constructor (builds an identity matrix)
- ///
- ////////////////////////////////////////////////////////////
- Matrix3();
-
- ////////////////////////////////////////////////////////////
- /// Construct a matrix from its 9 elements
- ///
- ////////////////////////////////////////////////////////////
- Matrix3(float a00, float a01, float a02,
- float a10, float a11, float a12,
- float a20, float a21, float a22);
-
- ////////////////////////////////////////////////////////////
- /// Build a matrix from a set of transformations
- ///
- /// \param Center : Origin for the transformations
- /// \param Translation : Translation offset
- /// \param Rotation : Rotation angle in degrees
- /// \param Scale : Scaling factors
- ///
- ////////////////////////////////////////////////////////////
- void SetFromTransformations(const Vector2f& Center, const Vector2f& Translation, float Rotation, const Vector2f& Scale);
-
- ////////////////////////////////////////////////////////////
- /// Transform a point by the matrix
- ///
- /// \param Point : Point to transform
- ///
- /// \return Transformed point
- ///
- ////////////////////////////////////////////////////////////
- Vector2f Transform(const Vector2f& Point) const;
-
- ////////////////////////////////////////////////////////////
- /// Return the inverse of the matrix
- ///
- /// \return A new matrix which is the inverse of this
- ///
- ////////////////////////////////////////////////////////////
- Matrix3 GetInverse() const;
-
- ////////////////////////////////////////////////////////////
- /// Return the elements of the matrix as a 4x4,
- /// in an array of 16 floats
- ///
- /// \return Pointer to the 4x4 matrix elements
- ///
- ////////////////////////////////////////////////////////////
- const float* Get4x4Elements() const;
-
- ////////////////////////////////////////////////////////////
- /// Operator () overloads to access the matrix elements
- ///
- /// \param Row : Element row (0 based)
- /// \param Col : Element column (0 based)
- ///
- /// \return Matrix element (Row, Col)
- ///
- ////////////////////////////////////////////////////////////
- float operator ()(unsigned int Row, unsigned int Col) const;
- float& operator ()(unsigned int Row, unsigned int Col);
-
- ////////////////////////////////////////////////////////////
- /// Operator * overload to multiply two matrices
- ///
- /// \param Mat : Matrix to multiply
- ///
- /// \return this * Mat
- ///
- ////////////////////////////////////////////////////////////
- Matrix3 operator *(const Matrix3& Mat) const;
-
- ////////////////////////////////////////////////////////////
- /// Operator *= overload to multiply-assign two matrices
- ///
- /// \param Mat : Matrix to multiply
- ///
- /// \return this * Mat
- ///
- ////////////////////////////////////////////////////////////
- Matrix3& operator *=(const Matrix3& Mat);
-
- ////////////////////////////////////////////////////////////
- // Static member data
- ////////////////////////////////////////////////////////////
- static const Matrix3 Identity; ///< Identity matrix
-
-private :
-
- ////////////////////////////////////////////////////////////
- // Member data
- ////////////////////////////////////////////////////////////
- float myData[16]; /// Matrix elements (we directly store it as a 4x4 matrix for optimization purpose)
-};
-
-#include <SFML/Graphics/Matrix3.inl>
-
-} // namespace sf
-
-
-#endif // SFML_MATRIX3_HPP