Databases
StackOverflow2013
Postsdbo
POPython server and Game Client: Message overload?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POPython server and Game Client: Message overload?
    primarykey
    data
    text
    <p>I'm writing a game server in Python and a game client in Game Maker with the Faucet Networking plugin (though that shouldn't matter). The client sends an UPDATEXY message to the server each time the player moves, and there is a message chatting thing in the client. With 2 clients connected to the server, it seems that the client gets overloaded with messages (further into the run time, chat messages appear slower and the player lags behind where the actual other player is). I believe this is because the client cannot process the messages at the rate they are flowing in, so I implemented a feature in the client where it would just dump all messages in the receive buffer, and ignore them. This seemed to work, but the player would jerk around violently. Is there any sort of 'clean fix' to this problem, or is it a fundamental thing that I have done wrong since the start? </p> <p>By the way, the protocol I am using is TCP. Is this a problem with TCP itself or am I just using it wrong? Would switching to UDP help?</p> <p>Thanks.</p> <p>EDIT: Code was requested so here you go for the server:</p> <pre><code>def sendmsg(msgtype, msg, conn, args=None): if msgtype == MSG_PLAYER_ASSIGN_ID: dataload = struct.pack('!hhh', MSG_STARTBYTE, msgtype, msg) conn.send(dataload) elif msgtype == MSG_PLAYER_UPDATEXY: #This will only ever be broadcasted #print("Sending xy from " + str(args['pid'])) dataload = struct.pack('!hhhhh', MSG_STARTBYTE, msgtype, args['pid'], msg[0], msg[1]) conn.send(dataload) elif msgtype == MSG_ASKFORLIST: players = msg for player in players: if args['pid'] != player.pid and player.dead == False: dataload = struct.pack('!hhhh' + str(len(str(player.name))) + "s", MSG_STARTBYTE, MSG_PLAYERENTRY, player.pid, len(str(player.name)), player.name.encode()) conn.send(dataload) loginfo("Sent a player") </code></pre> <p>^That's just a few packets, there are more, but they are all pretty much like those</p> <p>Here you go for the client:</p> <pre><code>if msgtype == MSG_PLAYER_UPDATEXY { if tcp_receive(serversocket, 6){ pidtoupdate = read_short(serversocket) //show_message(string(pidtoupdate)) if objNewNetProcessor.pid != pidtoupdate { xtoupdate = read_short(serversocket) ytoupdate = read_short(serversocket) playertoupdate = ds_map_find_value(global.players, string(pidtoupdate)) if playertoupdate != objChar { playertoupdate.y = ytoupdate playertoupdate.x = xtoupdate} }}} if msgtype == MSG_CHAT { if tcp_receive(serversocket, 4){ fromperson = read_short(objNewNetProcessor.serversocket) strlen = read_short(objNewNetProcessor.serversocket) tcp_receive(objNewNetProcessor.serversocket, strlen) chatmsg = read_string(objNewNetProcessor.serversocket, strlen) display_chat(fromperson, chatmsg) }} </code></pre> <p>^Sorry that's a total messtastic, it's just temporary code for now. It too is just a few packets, it handles more below that code, though they all look similar to those.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USName McChange
    1. USName McChange
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POPython server and Game Client: Message overload?
      1. USMedo42
      1. VTFavorite
    2. VO
      singulars
      1. POPython server and Game Client: Message overload?
      1. This table or related slice is empty.
      1. VTUpMod
    1. CO1) Kind of hard to debug without any code, 2) seems more related to the handling of messages not the transmission, 3) not really related to python as it's client side most likely.
      singulars
      1. POPython server and Game Client: Message overload?
      1. USBluePeppers
    2. CO@BluePeppers 1) I figured this was more of a theory question rather than a problem with my code, but if you insist, I'll post it here in a second. 2) I suppose 3) I was wondering if the speed of Python had anything to do with this.
      singulars
      1. POPython server and Game Client: Message overload?
      1. USName McChange
    3. COIs the server replying to every UPDATEXY? Do you know the rate at which these messages are being sent? And how long is it before the client starts to slow down?
      singulars
      1. POPython server and Game Client: Message overload?
      1. USBluePeppers
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload