UDP server-client

This is a discussion on UDP server-client within the Networking/Device Communication forums, part of the General Programming Boards category; what is the best way to have a server talking to many clients 20-30+ at the same time (mmorpg style) ...

  1. #1
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    UDP server-client

    what is the best way to have a server talking to many clients 20-30+ at the same time (mmorpg style) and still update info such as were enemies are and what not.. while constantly getting info from and sending info to clients...?? i hope you understood this

    EDIT:: i was thinking of something like the select() func for TCP but i dont know if that will even do what i want it to.

    thx for any help
    Last edited by c++.prog.newbie; 09-07-2005 at 07:32 PM.

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    Select works on UDP sockets as well.
    Simply have an event loop wait on data from a socket, then send the appropriate updates to the appropriate sockets. This may require doing it in more than 1 select call. For instance your kernel may not be able to send to all the sockets in one shot so you'd hav eot go back to selecting until you can write to the socket again.

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    but i cant have blocking sockets or else the game wont run smooth.. seeing as how the server has to update stuff like NPC locations and whatnot

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    So don't? What is the hard part here?

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    oh ya i just remembered select doesnt block unless you want it to! lol

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    Yes, documentation is a powerful concept.

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    does anyone know what the best format to send info is for a game... if i remeber correct there are many data types that can be sent.

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