+
+ /* copy valid player actions (will be set to 0 for not connected players) */
+ for (i = 0; i < MAX_PLAYERS; i++)
+ stored_player[i].effective_action =
+ getNetworkBuffer8BitInteger(read_buffer);
+
+ network_player_action_received = TRUE;
+}
+
+static void Handle_OP_BROADCAST_MESSAGE()
+{
+ int player_nr = getNetworkBuffer8BitInteger(read_buffer);
+
+ printf("OP_BROADCAST_MESSAGE: %d\n", player_nr);
+ Error(ERR_NETWORK_CLIENT, "client %d sends message", player_nr);
+}
+
+static void HandleNetworkingMessage()
+{
+ stop_network_game = FALSE;
+
+ initNetworkBufferForReading(read_buffer);
+
+ int message_type = getNetworkBuffer8BitInteger(read_buffer);
+
+ switch (message_type)
+ {
+ case OP_BAD_PROTOCOL_VERSION:
+ Handle_OP_BAD_PROTOCOL_VERSION();
+ break;
+
+ case OP_YOUR_NUMBER:
+ Handle_OP_YOUR_NUMBER();
+ break;
+
+ case OP_NUMBER_WANTED:
+ Handle_OP_NUMBER_WANTED();
+ break;
+
+ case OP_PLAYER_NAME:
+ Handle_OP_PLAYER_NAME();
+ break;
+
+ case OP_PLAYER_CONNECTED:
+ Handle_OP_PLAYER_CONNECTED();
+ break;
+
+ case OP_PLAYER_DISCONNECTED:
+ Handle_OP_PLAYER_DISCONNECTED();
+ break;
+
+ case OP_START_PLAYING:
+ Handle_OP_START_PLAYING();
+ break;
+
+ case OP_PAUSE_PLAYING:
+ Handle_OP_PAUSE_PLAYING();
+ break;
+
+ case OP_CONTINUE_PLAYING:
+ Handle_OP_CONTINUE_PLAYING();
+ break;
+
+ case OP_STOP_PLAYING:
+ Handle_OP_STOP_PLAYING();
+ break;
+
+ case OP_MOVE_PLAYER:
+ Handle_OP_MOVE_PLAYER();
+ break;
+
+ case OP_BROADCAST_MESSAGE:
+ Handle_OP_BROADCAST_MESSAGE();
+ break;
+
+ default:
+ if (options.verbose)
+ Error(ERR_NETWORK_CLIENT,
+ "unknown opcode %d from server", message_type);
+ }
+
+ fflush(stdout);
+
+ /* in case of internal error, stop network game */
+ if (stop_network_game)
+ SendToServer_StopPlaying(NETWORK_STOP_BY_ERROR);
+}
+
+static char *HandleNetworkingPackets()
+{
+ while (1)
+ {
+ /* ---------- check network server for activity ---------- */
+
+ int num_active_sockets = SDLNet_CheckSockets(rfds, 0);
+
+ if (num_active_sockets < 0)
+ return "Error checking network sockets!";
+
+ if (num_active_sockets == 0)
+ break; // no active sockets, stop here
+
+ /* ---------- read packets from network server ---------- */
+
+ initNetworkBufferForReceiving(read_buffer);
+
+ int num_bytes = receiveNetworkBufferPacket(read_buffer, sfd);
+
+ if (num_bytes < 0)
+ return "Error reading from network server!";
+
+ if (num_bytes == 0)
+ return "Connection to network server lost!";
+
+ HandleNetworkingMessage();
+
+ if (stop_network_client)
+ return stop_network_client_message;
+ }
+
+ return NULL;
+}
+
+static void FreeNetworkClientPlayerInfo(struct NetworkClientPlayerInfo *player)
+{
+ if (player == NULL)
+ return;
+
+ if (player->next)
+ FreeNetworkClientPlayerInfo(player->next);
+
+ checked_free(player);
+}
+
+static void HandleNetworkingDisconnect()
+{
+ int i;
+
+ SDLNet_TCP_DelSocket(rfds, sfd);
+ SDLNet_TCP_Close(sfd);
+
+ network_playing = FALSE;
+
+ network.enabled = FALSE;
+ network.connected = FALSE;
+
+ setup.network_mode = FALSE;
+
+ for (i = 0; i < MAX_PLAYERS; i++)
+ stored_player[i].connected_network = FALSE;
+
+ FreeNetworkClientPlayerInfo(first_player.next);
+
+ first_player.nr = 0;
+ first_player.next = NULL;
+}
+
+void HandleNetworking()
+{
+ char *error_message = HandleNetworkingPackets();
+
+ if (error_message != NULL)
+ {
+ HandleNetworkingDisconnect();
+
+ if (game_status == GAME_MODE_PLAYING)
+ {
+ Request(error_message, REQ_CONFIRM | REQ_STAY_CLOSED);
+
+ SetGameStatus(GAME_MODE_MAIN);
+
+ DrawMainMenu();
+ }
+ else
+ {
+ Request(error_message, REQ_CONFIRM);
+
+ if (game_status == GAME_MODE_MAIN)
+ ClearNetworkPlayers();
+ }
+ }
+}
+
+void DisconnectFromNetworkServer()
+{
+ DrawNetworkText_Title("Terminating Network");
+ DrawNetworkText("Disconnecting from network server ...");
+
+ HandleNetworkingDisconnect();
+
+ DrawNetworkText_Success("Successfully disconnected!");
+
+ /* short time to recognize result of network initialization */
+ Delay_WithScreenUpdates(1000);