46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
//
|
|
// Copyright (c) 2010-2011 Matthew Jack and Doug Binks
|
|
//
|
|
// 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.
|
|
|
|
#pragma once
|
|
#ifndef AUMATH_DEFINED
|
|
#define AUMATH_DEFINED
|
|
|
|
#define _USE_MATH_DEFINES
|
|
#include <math.h>
|
|
|
|
/* Adds some helpful macros and exposes the non-standard constants available in math.h (may not be portable):
|
|
* M_E - e
|
|
* M_LOG2E - log2(e)
|
|
* M_LOG10E - log10(e)
|
|
* M_LN2 - ln(2)
|
|
* M_LN10 - ln(10)
|
|
* M_PI - pi
|
|
* M_PI_2 - pi/2
|
|
* M_PI_4 - pi/4
|
|
* M_1_PI - 1/pi
|
|
* M_2_PI - 2/pi
|
|
* M_2_SQRTPI - 2/sqrt(pi)
|
|
* M_SQRT2 - sqrt(2)
|
|
* M_SQRT1_2 - 1/sqrt(2)
|
|
*/
|
|
|
|
#define DEG2RAD(deg) ((deg)*((PI)/(180.0)))
|
|
#define RAD2DEG(rad) ((rad)*((180.0)/(PI)))
|
|
#define LERP(a, b, t) ((a) + (t) * ((b) - (a)))
|
|
|
|
|
|
#endif // AUMATH_DEFINED
|