question: return the distance between me and y. concode_field_sep String _name concode_elem_sep double _x concode_elem_sep double _y concode_elem_sep double _dist concode_field_sep void setDistance concode_elem_sep double distance concode_elem_sep String toString
target: double function ( Location arg0 ) { double loc0 = _x - arg0 . _x ; double loc1 = _y - arg0 . _y ; return sqrt ( loc0 * loc0 + loc1 * loc1 ) ; }