FMath/FMath.h

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/*
    Copyright (C) 2005-2006 Feeling Software Inc.
    MIT License: http://www.opensource.org/licenses/mit-license.php
*/

#ifndef _F_MATH_H_
#define _F_MATH_H_

#include <math.h>
#include <algorithm>

// Includes the improved vector class.
#include "FMath/FMArray.h"

// Includes the common integer and floating-point definitions and functions.
#include "FMath/FMFloat.h"
#include "FMath/FMInteger.h"

namespace FMath
{
    const double Pi = 3.14159;  
    inline double RadToDeg(double val) { return (val * 180.0/Pi); }

    inline float RadToDeg(float val) { return (val * 180.0f/(float)Pi); }

    inline double DegToRad(double val) { return (val * Pi/180.0); }

    inline float DegToRad(float val) { return (val * (float)Pi/180.0f); }

#ifdef WIN32
    inline int IsNotANumber(float f) { return _isnan(f); }
#elif __PPU__
    inline int IsNotANumber(float f) { return !isfinite(f); }
#else // Linux and Mac
    inline int IsNotANumber(float f) { return !finite(f); }
#endif

    inline double Sign(double val) { return (val >= 0.0) ? 1.0 : -1.0; }

    inline float Sign(float val) { return (val >= 0.0f) ? 1.0f : -1.0f; }

    inline int32 Sign(int32 val) { return (val >= 0) ? 1 : -1; }

    template <class T>
    inline T Clamp(T val, T mn, T mx) { return std::max(std::min(val, mx), mn); }
};

// Include commonly used mathematical classes
#include "FMath/FMVector2.h"
#include "FMath/FMVector3.h"
#include "FMath/FMVector4.h"
#include "FMath/FMColor.h"
#include "FMath/FMMatrix33.h"
#include "FMath/FMMatrix44.h"

#endif // _F_MATH_H_

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