public Vector2d add(double x, double y, Vector2d dest) {
        dest.x = this.x + x;
        dest.y = this.y + y;
        return dest;
    }
public Vector2d add ( double x , double y , Vector2d dest ) { dest . x = this . x + x ; dest . y = this . y + y ; return dest ; }
/* (non-Javadoc)
@see org.joml.Vector2dc#add(double, double, org.joml.Vector2d)