MathUtil.cpp

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/*
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     ██║ ██╔╝ ██╔══██╗ ╚══██╔══╝ ██╔══██╗ ████╗  ██║ ██╔══██╗
     █████╔╝  ███████║    ██║    ███████║ ██╔██╗ ██║ ███████║
     ██╔═██╗  ██╔══██║    ██║    ██╔══██║ ██║╚██╗██║ ██╔══██║
     ██║  ██╗ ██║  ██║    ██║    ██║  ██║ ██║ ╚████║ ██║  ██║
     ╚═╝  ╚═╝ ╚═╝  ╚═╝/\  ╚═╝    ╚═╝  ╚═╝ ╚═╝  ╚═══╝ ╚═╝  ╚═╝
   /vvvvvvvvvvvvvvvvvvv \=========================================,
   `^^^^^^^^^^^^^^^^^^^ /---------------------------------------"
        Katana Engine \/ © 2012 - Shuriken Studios LLC
                http://www.shurikenstudios.com
*/
 
#include "KatanaEngine.h"
 
namespace KatanaEngine
{
    const float Math::PI = 3.14159265359f;
    const float Math::PI_OVER2 = Math::PI / 2;
    const float Math::PI_OVER4 = Math::PI / 4;
    const float Math::INVERSE_PI = 1.0f / Math::PI;
    const float Math::NORMALIZE_PI_OVER4 = 0.70710678119f;
    const float Math::INVERSE_180 = 1.0f / 180;
 
    float Math::Lerp(float start, float end, float value)
    {
        if (value < 0) return start;
        if (value > 1) return end;
 
        return start + (end - start) * value;
    }
 
    int Math::GetRandomInt(const int min, const int max)
    {
        return (rand() % (max - min + 1)) + min;
    }
    
    float Math::Min(const float value1, const float value2)
    {
        if (value1 < value2) return value1;
        return value2;
    }
 
    float Math::Max(const float value1, const float value2)
    {
        if (value1 > value2) return value1;
        return value2;
    }
 
    float Math::Abs(const float value)
    {
        if (value < 0) return -value;
        else return value;
    }
 
 
}