mirror of
https://github.com/smallmain/cocos-enhance-kit.git
synced 2025-12-10 15:00:04 +00:00
初始化
This commit is contained in:
SmallMain
232
cocos2d-x/cocos/math/Mat3.hpp
Normal file
232
cocos2d-x/cocos/math/Mat3.hpp
Normal file
@@ -0,0 +1,232 @@
|
||||
/****************************************************************************
|
||||
Copyright (c) 2018 Xiamen Yaji Software Co., Ltd.
|
||||
|
||||
http://www.cocos2d-x.org
|
||||
|
||||
Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
of this software and associated documentation files (the "Software"), to deal
|
||||
in the Software without restriction, including without limitation the rights
|
||||
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
copies of the Software, and to permit persons to whom the Software is
|
||||
furnished to do so, subject to the following conditions:
|
||||
|
||||
The above copyright notice and this permission notice shall be included in
|
||||
all copies or substantial portions of the Software.
|
||||
|
||||
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
THE SOFTWARE.
|
||||
****************************************************************************/
|
||||
|
||||
#ifndef MATH_MAT3_H
|
||||
#define MATH_MAT3_H
|
||||
|
||||
#define MATRIX3_SIZE ( sizeof(float) * 9)
|
||||
|
||||
#include "base/ccMacros.h"
|
||||
|
||||
#include "math/Vec2.h"
|
||||
#include "math/Vec3.h"
|
||||
#include "math/Vec4.h"
|
||||
#include "math/Mat4.h"
|
||||
|
||||
/**
|
||||
* @addtogroup base
|
||||
* @{
|
||||
*/
|
||||
|
||||
NS_CC_MATH_BEGIN
|
||||
|
||||
class CC_DLL Mat3
|
||||
{
|
||||
public:
|
||||
/**
|
||||
* Stores the columns of this 3x3 matrix.
|
||||
* */
|
||||
float m[9];
|
||||
|
||||
/**
|
||||
* Default constructor.
|
||||
* Constructs a matrix initialized to the identity matrix:
|
||||
*
|
||||
* 1 0 0
|
||||
* 0 1 0
|
||||
* 0 0 1
|
||||
*/
|
||||
Mat3();
|
||||
|
||||
/**
|
||||
* Constructs a matrix initialized to the specified value.
|
||||
*
|
||||
* @param m11 The first element of the first row.
|
||||
* @param m12 The second element of the first row.
|
||||
* @param m13 The third element of the first row.
|
||||
* @param m21 The first element of the second row.
|
||||
* @param m22 The second element of the second row.
|
||||
* @param m23 The third element of the second row.
|
||||
* @param m31 The first element of the third row.
|
||||
* @param m32 The second element of the third row.
|
||||
* @param m33 The third element of the third row.
|
||||
*/
|
||||
Mat3(float m11, float m12, float m13, float m21, float m22, float m23, float m31, float m32, float m33);
|
||||
|
||||
/**
|
||||
* Creates a matrix initialized to the specified column-major array.
|
||||
*
|
||||
* The passed-in array is in column-major order, so the memory layout of the array is as follows:
|
||||
*
|
||||
* 0 3 6
|
||||
* 1 4 7
|
||||
* 2 5 8
|
||||
*
|
||||
* @param mat An array containing 16 elements in column-major order.
|
||||
*/
|
||||
Mat3(const float* mat);
|
||||
|
||||
/**
|
||||
* Constructs a new matrix by copying the values from the specified matrix.
|
||||
*
|
||||
* @param copy The matrix to copy.
|
||||
*/
|
||||
Mat3(const Mat3& copy);
|
||||
|
||||
/**
|
||||
* Destructor.
|
||||
*/
|
||||
~Mat3();
|
||||
|
||||
/**
|
||||
* Sets the values of this matrix.
|
||||
*
|
||||
* @param m11 The first element of the first row.
|
||||
* @param m12 The second element of the first row.
|
||||
* @param m13 The third element of the first row.
|
||||
* @param m21 The first element of the second row.
|
||||
* @param m22 The second element of the second row.
|
||||
* @param m23 The third element of the second row.
|
||||
* @param m31 The first element of the third row.
|
||||
* @param m32 The second element of the third row.
|
||||
* @param m33 The third element of the third row.
|
||||
*/
|
||||
void set(float m11, float m12, float m13, float m21, float m22, float m23,
|
||||
float m31, float m32, float m33);
|
||||
|
||||
/**
|
||||
* Sets the values of this matrix to those in the specified column-major array.
|
||||
*
|
||||
* @param mat An array containing 9 elements in column-major format.
|
||||
*/
|
||||
void set(const float* mat);
|
||||
|
||||
/**
|
||||
* Sets the values of this matrix to those of the specified matrix.
|
||||
*
|
||||
* @param mat The source matrix.
|
||||
*/
|
||||
void set(const Mat3& mat);
|
||||
|
||||
/**
|
||||
* return an identity matrix.
|
||||
*/
|
||||
static void identity(Mat3& mat);
|
||||
|
||||
/**
|
||||
* Transposes matrix.
|
||||
*/
|
||||
void transpose();
|
||||
|
||||
/**
|
||||
* Transposes a matrix.
|
||||
*/
|
||||
static void transpose(Mat3& out, const Mat3& mat);
|
||||
|
||||
/**
|
||||
* Inverts a matrix.
|
||||
*/
|
||||
void inverse();
|
||||
|
||||
/**
|
||||
* Calculates the adjugate of a matrix.
|
||||
*/
|
||||
static void adjoint(Mat3& out, const Mat3& mat);
|
||||
|
||||
/**
|
||||
* Calculates the determinant of a matrix.
|
||||
*/
|
||||
float determinant();
|
||||
|
||||
/**
|
||||
* Multiply two matrices explicitly.
|
||||
*/
|
||||
static void multiply(Mat3& out, const Mat3& a, const Mat3& b);
|
||||
|
||||
/**
|
||||
* Multiply a matrix with a translation matrix given by a translation offset.
|
||||
*/
|
||||
static void translate(Mat3& out, const Mat3& mat, const Vec2& vec);
|
||||
|
||||
/**
|
||||
* Rotates a matrix by the given angle.
|
||||
*/
|
||||
static void rotate(Mat3& out, const Mat3& mat, float rad);
|
||||
|
||||
/**
|
||||
* Multiply a matrix with a scale matrix given by a scale vector.
|
||||
*/
|
||||
static void scale(Mat3& out, const Mat3& mat, const Vec2& vec);
|
||||
|
||||
/**
|
||||
* Copies the upper-left 3x3 values of a 4x4 matrix into a 3x3 matrix.
|
||||
*/
|
||||
static void fromMat4(Mat3& out, const Mat4& mat);
|
||||
|
||||
/**
|
||||
* Creates a matrix from a translation offset.
|
||||
*/
|
||||
static void fromTranslation(Mat3& out, const Vec2& vec);
|
||||
|
||||
/**
|
||||
* Creates a matrix from a given angle.
|
||||
*/
|
||||
static void fromRotation(Mat3& out, float rad);
|
||||
|
||||
/**
|
||||
* Creates a matrix from a scale vector.
|
||||
*/
|
||||
static void fromScaling(Mat3& out, const Vec2& vec);
|
||||
|
||||
/**
|
||||
* Calculates a 3x3 matrix from the given quaternion.
|
||||
*/
|
||||
|
||||
static void fromQuat(Mat3& out, const Quaternion& quat);
|
||||
|
||||
/**
|
||||
* Adds two matrices.
|
||||
*/
|
||||
static void add(Mat3& out, const Mat3& a, const Mat3& b);
|
||||
|
||||
/**
|
||||
* Subtracts matrix b from matrix a.
|
||||
*/
|
||||
static void subtract(Mat3& out, const Mat3& a, const Mat3& b);
|
||||
|
||||
/** equals to a matrix full of zeros */
|
||||
static const Mat3 ZERO;
|
||||
/** equals to the identity matrix */
|
||||
static const Mat3 IDENTITY;
|
||||
};
|
||||
|
||||
NS_CC_MATH_END
|
||||
|
||||
/**
|
||||
end of base group
|
||||
@}
|
||||
*/
|
||||
|
||||
#endif
|
||||
|
||||
Reference in New Issue
Block a user