Function NetworkMakeClientNameUnique

src/network/network_server.cpp:1608–1639

* Check whether a name is unique, and otherwise try to make it unique. * @param new_name The name to check/modify. * @return True if an unique name was achieved. */

 * @return True if an unique name was achieved.
 */
bool NetworkMakeClientNameUnique(std::string &name)
{
	bool is_name_unique = false;
	std::string original_name = name;

	for (uint number = 1; !is_name_unique && number <= MAX_CLIENTS; number++) {  // Something's really wrong when there're more names than clients
		is_name_unique = true;
		for (const NetworkClientInfo *ci : NetworkClientInfo::Iterate()) {
			if (ci->client_name == name) {
				/* Name already in use */
				is_name_unique = false;
				break;
			}
		}
		/* Check if it is the same as the server-name */
		const NetworkClientInfo *ci = NetworkClientInfo::GetByClientID(CLIENT_ID_SERVER);
		if (ci != nullptr) {
			if (ci->client_name == name) is_name_unique = false; // name already in use
		}

		if (!is_name_unique) {
			/* Try a new name (<name> #1, <name> #2, and so on) */
			name = fmt::format("{} #{}", original_name, number);

			/* The constructed client name is larger than the limit,
			 * so... bail out as no valid name can be created. */
			if (name.size() >= NETWORK_CLIENT_NAME_LENGTH) return false;
		}
	}

	return is_name_unique;
}

/**
 * Change the client name of the given client