#ifndef vector_3_h
#define vector_3_h
#include <cmath>
class vector_3
{
public:
inline vector_3(const float src_x, const float src_y, const float src_z) : x(src_x), y(src_y), z(src_z) {};
inline vector_3(void) : x(0.0f), y(0.0), z(0.0) {};
void set(const float src_x, const float src_y, const float src_z)
{
x = src_x;
y = src_y;
z = src_z;
}
void normalize(void)
{
float len = sqrtf(x*x + y*y + z*z);
if(len != 1.0)
{
x /= len;
y /= len;
z /= len;
}
}
float dot(const vector_3 &rhs)
{
return x*rhs.x + y*rhs.y + z*rhs.z;
}
vector_3 cross(const vector_3 &rhs)
{
vector_3 temp;
temp.x = y*rhs.z - z*rhs.y;
temp.y = z*rhs.x - x*rhs.z;
temp.z = x*rhs.y - y*rhs.x;
return temp;
}
float x, y, z;
};
#endif
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