std::string GameUser::serialize() {
	std::string serialization;
	std::stringstream ss;
	serialization = name + (std::string) ":";
	ss << imageNumber;
	ss << ":";
	ss << x_coord;
	ss << ":";
	ss << y_coord;
	ss << ":";
	ss >> serialization;
	return serialization;
}