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Diffstat (limited to 'src/libjin/Math/Matrix.h')
| -rw-r--r-- | src/libjin/Math/Matrix.h | 302 |
1 files changed, 151 insertions, 151 deletions
diff --git a/src/libjin/Math/Matrix.h b/src/libjin/Math/Matrix.h index 52fc9c8..c1f903a 100644 --- a/src/libjin/Math/Matrix.h +++ b/src/libjin/Math/Matrix.h @@ -3,157 +3,157 @@ namespace jin { -namespace math -{ - - struct vertex - { - unsigned char r, g, b, a; - float x, y; - float s, t; - }; - /** - * This class is the basis for all transformations in LOVE. Althought not - * really needed for 2D, it contains 4x4 elements to be compatible with - * OpenGL without conversions. - * Ҫתõľ - * https://blog.csdn.net/candycat1992/article/details/8830894 - **/ - class Matrix - { - private: - - /** - * | e0 e4 e8 e12 | - * | e1 e5 e9 e13 | - * | e2 e6 e10 e14 | - * | e3 e7 e11 e15 | - **/ - float e[16]; - - public: - - static const Matrix Identity; - - /** - * Creates a new identity matrix. - **/ - Matrix(); - - /** - * Destructor. - **/ - ~Matrix(); - - void setOrtho(float _left, float _right, float _bottom, float _top, float _near, float _far); - - /** - * Multiplies this Matrix with another Matrix, changing neither. - * @param m The Matrix to multiply with this Matrix. - * @return The combined matrix. - **/ - Matrix operator * (const Matrix & m) const; - - /** - * Multiplies a Matrix into this Matrix. - * @param m The Matrix to combine into this Matrix. - **/ - void operator *= (const Matrix & m); - - /** - * Gets a pointer to the 16 array elements. - * @return The array elements. - **/ - const float * getElements() const; - - /** - * Resets this Matrix to the identity matrix. - **/ - void setIdentity(); - - /** - * Resets this Matrix to a translation. - * @param x Translation along x-axis. - * @param y Translation along y-axis. - **/ - void setTranslation(float x, float y); - - /** - * Resets this Matrix to a rotation. - * @param r The angle in radians. - **/ - void setRotation(float r); - - /** - * Resets this Matrix to a scale transformation. - * @param sx Scale factor along the x-axis. - * @param sy Scale factor along the y-axis. - **/ - void setScale(float sx, float sy); - - /** - * Resets this Matrix to a shear transformation. - * @param kx Shear along x-axis. - * @param ky Shear along y-axis. - **/ - void setShear(float kx, float ky); - - /** - * Creates a transformation with a certain position, orientation, scale - * and offset. Perfect for Drawables -- what a coincidence! - * - * @param x The translation along the x-axis. - * @param y The translation along the y-axis. - * @param angle The rotation (rad) around the center with offset (ox,oy). - * @param sx Scale along x-axis. - * @param sy Scale along y-axis. - * @param ox The offset for rotation along the x-axis. - * @param oy The offset for rotation along the y-axis. - * @param kx Shear along x-axis - * @param ky Shear along y-axis - **/ - void setTransformation(float x, float y, float angle, float sx, float sy, float ox, float oy); - - /** - * Multiplies this Matrix with a translation. - * @param x Translation along x-axis. - * @param y Translation along y-axis. - **/ - void translate(float x, float y); - - /** - * Multiplies this Matrix with a rotation. - * @param r Angle in radians. - **/ - void rotate(float r); - - /** - * Multiplies this Matrix with a scale transformation. - * @param sx Scale factor along the x-axis. - * @param sy Scale factor along the y-axis. - **/ - void scale(float sx, float sy); - - /** - * Multiplies this Matrix with a shear transformation. - * @param kx Shear along the x-axis. - * @param ky Shear along the y-axis. - **/ - void shear(float kx, float ky); - - /** - * Transforms an array of vertices by this Matrix. The sources and - * destination arrays may be the same. - * - * @param dst Storage for the transformed vertices. - * @param src The source vertices. - * @param size The number of vertices. - **/ - void transform(vertex * dst, const vertex * src, int size) const; - - }; - -} // math + namespace math + { + + struct vertex + { + unsigned char r, g, b, a; + float x, y; + float s, t; + }; + /** + * This class is the basis for all transformations in LOVE. Althought not + * really needed for 2D, it contains 4x4 elements to be compatible with + * OpenGL without conversions. + * Ҫתõľ + * https://blog.csdn.net/candycat1992/article/details/8830894 + **/ + class Matrix + { + private: + + /** + * | e0 e4 e8 e12 | + * | e1 e5 e9 e13 | + * | e2 e6 e10 e14 | + * | e3 e7 e11 e15 | + **/ + float e[16]; + + public: + + static const Matrix Identity; + + /** + * Creates a new identity matrix. + **/ + Matrix(); + + /** + * Destructor. + **/ + ~Matrix(); + + void setOrtho(float _left, float _right, float _bottom, float _top, float _near, float _far); + + /** + * Multiplies this Matrix with another Matrix, changing neither. + * @param m The Matrix to multiply with this Matrix. + * @return The combined matrix. + **/ + Matrix operator * (const Matrix & m) const; + + /** + * Multiplies a Matrix into this Matrix. + * @param m The Matrix to combine into this Matrix. + **/ + void operator *= (const Matrix & m); + + /** + * Gets a pointer to the 16 array elements. + * @return The array elements. + **/ + const float * getElements() const; + + /** + * Resets this Matrix to the identity matrix. + **/ + void setIdentity(); + + /** + * Resets this Matrix to a translation. + * @param x Translation along x-axis. + * @param y Translation along y-axis. + **/ + void setTranslation(float x, float y); + + /** + * Resets this Matrix to a rotation. + * @param r The angle in radians. + **/ + void setRotation(float r); + + /** + * Resets this Matrix to a scale transformation. + * @param sx Scale factor along the x-axis. + * @param sy Scale factor along the y-axis. + **/ + void setScale(float sx, float sy); + + /** + * Resets this Matrix to a shear transformation. + * @param kx Shear along x-axis. + * @param ky Shear along y-axis. + **/ + void setShear(float kx, float ky); + + /** + * Creates a transformation with a certain position, orientation, scale + * and offset. Perfect for Drawables -- what a coincidence! + * + * @param x The translation along the x-axis. + * @param y The translation along the y-axis. + * @param angle The rotation (rad) around the center with offset (ox,oy). + * @param sx Scale along x-axis. + * @param sy Scale along y-axis. + * @param ox The offset for rotation along the x-axis. + * @param oy The offset for rotation along the y-axis. + * @param kx Shear along x-axis + * @param ky Shear along y-axis + **/ + void setTransformation(float x, float y, float angle, float sx, float sy, float ox, float oy); + + /** + * Multiplies this Matrix with a translation. + * @param x Translation along x-axis. + * @param y Translation along y-axis. + **/ + void translate(float x, float y); + + /** + * Multiplies this Matrix with a rotation. + * @param r Angle in radians. + **/ + void rotate(float r); + + /** + * Multiplies this Matrix with a scale transformation. + * @param sx Scale factor along the x-axis. + * @param sy Scale factor along the y-axis. + **/ + void scale(float sx, float sy); + + /** + * Multiplies this Matrix with a shear transformation. + * @param kx Shear along the x-axis. + * @param ky Shear along the y-axis. + **/ + void shear(float kx, float ky); + + /** + * Transforms an array of vertices by this Matrix. The sources and + * destination arrays may be the same. + * + * @param dst Storage for the transformed vertices. + * @param src The source vertices. + * @param size The number of vertices. + **/ + void transform(vertex * dst, const vertex * src, int size) const; + + }; + + } // math } // jin #endif
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