#include "helper_3dmath.h"

float vector_dot(float a[3], float b[3])
{
    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
}

void vector_normalize(float a[3])
{
    float mag = sqrt(vector_dot(a, a));
    a[0] /= mag;
    a[1] /= mag;
    a[2] /= mag;
}