vec3.hpp

class vec3
{
public:
	float x;
	float y;
	float z;

	vec3( const float x = 0 , const float y = 0 , const float z = 0 ) : x(x) , y(y) , z(z) {}

	// add another vector to a vector like a += v;
	inline vec3 operator+=( const vec3& v )
	{
		this->x += v.x;
		this->y += v.y;
		this->z += v.z;
		return *this;
	}
};

// add two vectors together like vec3 c = a + b;
inline vec3 operator+( const vec3& a , const vec3& b )
{
	return vec3( a.x+b.x , a.y+b.y , a.z+b.z );
}

// multiply a vector with a scalar like vec3 a = 3.5f * v; // this would need a second overload with the other order so vec3 a = v * 3.5f; would work as well, e.g. operator*( vec3 , float )
inline vec3 operator*( const float f , const vec3& v )
{
	return vec3( f*v.x , f*v.y , f*v.z );
}

// print the vec3 directly using std::cout << vec3 << std::endl;
inline std::ostream& operator<<( std::ostream& os , const vec3& v )
{
	os << "[ " << v.x << " , " << v.y << " , " << v.z << " ]";
	return os;
}