math.h

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#ifndef MML_MATH_H
#define MML_MATH_H

#include "gctypes.h"

#define M_PI        3.14159265358f

#define M_2PI       6.28318530718f   

#define M_PI_OVER_2 1.57079632679f
#define M_HALF_PI   M_PI_OVER_2 //TODO: remove for v2

#define M_PI_OVER_3   1.047197551f

#define M_PI_OVER_4   0.785398163f

#define M_PI_OVER_6   0.523598776f

#define DEG_TO_RAD(x) ((x) * 0.01745329251f)

#define RAD_TO_DEG(x) ((x) * 57.2957795131f)

#define SIGN(x) ((x) < 0 ? -1 : 1)

typedef struct
{
    float x; 
    float y; 
} Point;

extern float (*fabs)(float x);
extern float (*recipSqrt)(float x);
extern float (*exp)(float x);
extern float (*log)(float x);

extern float (*native_sin)(float x);
extern float (*native_cos)(float x);
extern float (*native_tan)(float x);
extern float (*native_acos)(float x);
extern float (*native_asin)(float x);
extern float (*native_atan)(float x);
extern float (*native_atan2)(float y, float x);

#if 0

float exp(float x);

float log(float x);

float fabs(float x);

float recipSqrt(float x);

#endif

float floor(float x);

float ceil(float x);

s32 imax(s32 a, s32 b);

s32 imin(s32 a, s32 b);

float fmax(float a, float b);

float fmin(float a, float b);

int imod(int a, int b);

float fmod(float a, float b);

s32 ipow(s16 base, u8 exp);

float fpow(float base, u8 exp);

float sqrt(float x);

float sin(float x);

float cos(float x);

float tan(float x);

float asin(float x);

float acos(float x);

float atan(float x);

float atan2(float y, float x);

float magnitude(Point pt);

float distance(Point a, Point b);

float angle(Point a, Point b);

#endif