class vector4{

	float x;

	float y;

	float z;

	float w;


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

		this->x = x;

		this->y = y;

		this->z = z;

		this->w = w;

	}

	vector4 * operator+( vector4 * b ) {

		this->add( b );

		return this;

	}

	vector4 * operator+=( vector4 * b ) {

		this->add( b );

		return this;

	}

	void add( vector4 * b ) {

		this->x		+= b->x;

		this->y		+= b->y;

		this->z		+= b->z;

		this->w		+= b->w;

	}

}