class VidUsPoint { double _x; double _y; double get x => _x; double get y => _y; VidUsPoint(this._x, this._y); bool operator ==(other) { if (other is VidUsPoint && runtimeType == other.runtimeType && _x == other._x && _y == other._y) { return true; } return false; } @override int get hashCode => _x.hashCode ^ _y.hashCode; }