Teeworlds 0.7 map download

Here is an example network traffic dump annotated using libtw2's wireshark dissector. The map download process is initiated if the map is changed or a client connects to the server. And the client does not know the map. Both times the server sends a NETMSG_MAP_CHANGE message where the client is supposed to answer with either NETMSG_CON_READY indicating that the client knows the map and is ready to enter or with NETMSG_REQUEST_MAP_DATA to start the map download process.

Note that the client has to keep sending NETMSG_REQUEST_MAP_DATA otherwise the server would stop sending the map data.

Here another dump showing the end of a successful map download. Since the client knows the total map size from the NETMSG_MAP_CHANGE message that was sent before. It sends NETMSG_CON_READY as soon as it got the last data message indicating that it received the full map and wants to connect now.