Method SendMap

src/network/network_server.cpp:550–597

This sends the map to the client */

/** This sends the map to the client */
NetworkRecvStatus ServerNetworkGameSocketHandler::SendMap()
{
	if (this->status < STATUS_AUTHORIZED) {
		/* Illegal call, return error and ignore the packet */
		return this->SendError(NETWORK_ERROR_NOT_AUTHORIZED);
	}

	if (this->status == STATUS_AUTHORIZED) {
		Debug(net, 9, "client[{}] SendMap(): first_packet", this->client_id);

		WaitTillSaved();
		this->savegame = std::make_shared<PacketWriter>(this);

		/* Now send the _frame_counter and how many packets are coming */
		auto p = std::make_unique<Packet>(this, PACKET_SERVER_MAP_BEGIN);
		p->Send_uint32(_frame_counter);
		this->SendPacket(std::move(p));

		NetworkSyncCommandQueue(this);
		Debug(net, 9, "client[{}] status = MAP", this->client_id);
		this->status = STATUS_MAP;
		/* Mark the start of download */
		this->last_frame = _frame_counter;
		this->last_frame_server = _frame_counter;

		/* Make a dump of the current game */
		if (SaveWithFilter(this->savegame, true) != SL_OK) UserError("network savedump failed");
	}

	if (this->status == STATUS_MAP) {
		bool last_packet = this->savegame->TransferToNetworkQueue();
		if (last_packet) {
			Debug(net, 9, "client[{}] SendMap(): last_packet", this->client_id);

			/* Done reading, make sure saving is done as well */
			this->savegame->Destroy();
			this->savegame = nullptr;

			/* Set the status to DONE_MAP, no we will wait for the client
			 *  to send it is ready (maybe that happens like never ;)) */
			Debug(net, 9, "client[{}] status = DONE_MAP", this->client_id);
			this->status = STATUS_DONE_MAP;

			this->CheckNextClientToSendMap();
		}
	}
	return NETWORK_RECV_STATUS_OKAY;
}

/**
 * Tell that a client joined.