class vector3{

	float x;

	float y;

	float z;



	constructor( float x, float y, float z ) {

		this->x = x;

		this->y = y;

		this->z = z;

	}

	vector3 * operator+( vector3 * b ) {

		this->add( b );

		return this;

	}

	vector3 * operator+=( vector3 * b ) {

		this->add( b );

		return this;

	}



	void add( vector3 * b ) {

		this->x		+= b->x;

		this->y		+= b->y;

		this->z		+= b->z;

	}

}