axmol/core/math/MathBase.h

/****************************************************************************
 Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.

 https://axmolengine.github.io/

 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 __CCMATHBASE_H__
#define __CCMATHBASE_H__

#include <memory>
#include <string.h>
#include "platform/PlatformMacros.h"
/**
 * @addtogroup base
 * @{
 */

/**Util macro for conversion from degrees to radians.*/
#define MATH_DEG_TO_RAD(x) ((x)*0.0174532925f)
/**Util macro for conversion from radians to degrees.*/
#define MATH_RAD_TO_DEG(x) ((x)*57.29577951f)
/**
@{ Util macro for const float such as epsilon, small float and float precision tolerance.
*/
#define MATH_FLOAT_SMALL 1.0e-37f
#define MATH_TOLERANCE 2e-37f
#define MATH_PIOVER2 1.57079632679489661923f
#define MATH_EPSILON 0.000001f
/**@}*/

//#define MATH_PIOVER4                0.785398163397448309616f
//#define MATH_PIX2                   6.28318530717958647693f
//#define MATH_E                      2.71828182845904523536f
//#define MATH_LOG10E                 0.4342944819032518f
//#define MATH_LOG2E                  1.442695040888963387f
//#define MATH_PI                     3.14159265358979323846f
//#define MATH_RANDOM_MINUS1_1()      ((2.0f*((float)rand()/RAND_MAX))-1.0f)      // Returns a random float between -1
// and 1. #define MATH_RANDOM_0_1()           ((float)rand()/RAND_MAX)                    // Returns a random float
// between 0 and 1. #define MATH_CLAMP(x, lo, hi)       ((x < lo) ? lo : ((x > hi) ? hi : x)) #ifndef M_1_PI #define
// M_1_PI                      0.31830988618379067154

#ifdef __cplusplus
#    define NS_AX_MATH_BEGIN \
        namespace ax    \
        {
#    define NS_AX_MATH_END }
#    define USING_NS_AX_MATH using namespace ax
#else
#    define NS_AX_MATH_BEGIN
#    define NS_AX_MATH_END
#    define USING_NS_AX_MATH
#endif

/**
 * end of base group
 * @}
 */

#endif  // __CCMATHBASE_H__