math.h

#ifndef _MATH_H
#define _MATH_H

inline float array_min(float *a);
inline float array_max(float *a);
inline double fsqrt(const double d);
inline double facos(const float x);

class Point
{
    public:
        Point();
        Point(float, float);
        float x;
        float y;
};

class Line
{
    public:
        Line(Point&, Point&);
        Line(float, float, float, float);
        Point start;
        Point end;
        Point intersection;
        bool Intersects(const Line& l);
};

class Vector2
{
    public:
        Vector2();
        Vector2(float, float);
        Vector2 operator+(const Vector2& v) const;
        Vector2 operator-(const Vector2& v) const;
        float operator*(const Vector2& v) const;
        Vector2 operator*(const float f) const;
        float Length();
        Vector2 Normal();
        Vector2 Perpendicular();
        float Angle(const Vector2& v);
        float x;
        float y;
};


#endif