ogmg/vector3.cpp

#include "vector3.h"

Vector3f::Vector3f(float x, float y, float z)
{
	this->x = x;
	this->y = y;
	this->z = z;
}

Vector3f Vector3f::operator+(Vector3f & r)
{
	return Vector3f(x + r.x, y + r.y, z + r.z);
}

Vector3f Vector3f::operator-(Vector3f & r)
{
	return Vector3f(x - r.x, y - r.y, z - r.z);
}

Vector3f Vector3f::operator*(float scaler)
{
	return Vector3f(x*scaler, y*scaler, z*scaler);
}

float Vector3f::operator*(Vector3f & r)
{
	return x *r.x + y * r.y + z*r.z;
}

void Vector3f::operator=(Vector3f & r)
{
	x = r.x;
	y = r.y;
	z = r.z;
}

void Vector3f::Normalize()
{
	float len = Magnitude();
	x /= len;
	y /= len;
	z /= len;
}

float Vector3f::Magnitude()
{
	return sqrtf(x*x + y*y + z*z);
}

Vector3f Cross(Vector3f v1, Vector3f v2)
{
	return Vector3f(v1.y*v2.z - v1.z*v2.y, v1.z*v2.x - v1.x*v2.z, v1.x*v2.y - v1.y*v2.x);
}