+ out << '[' << vector.x << ',' << vector.y << ']';
+ return out;
+}
+
+std::ostream& operator<<(std::ostream& out, const Rect& rect)
+{
+ out << "[" << rect.get_left() << "," << rect.get_top() << " "
+ << rect.get_right() << "," << rect.get_bottom() << "]";
+ return out;