A free net library for UDP protocol?
lazarus / 38-Networking and Web Programming

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Wodzu · 2013-01-12 09:44

Hi guys.

I am thinking about writing a mutiplayer game. I am looking for a
lightweight library which allows server-client communication under
Windows via UDP. I am interested in a free library for non-commercial
usage.

Could you reccomend me something?

Thanks.

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Chronos · 2013-01-12 09:56

There are list of available libraries:
http://wiki.freepascal.org/Networking_libraries
Other information related to networking:
http://wiki.freepascal.org/Networking

I would suggest something like simple TUDPSocket which exists in
Delphi VCL but not exist in LCL.

So you can better start with Synapse UDP sockets:
http://wiki.freepascal.org/Synapse

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Wodzu · 2013-01-12 11:25

Thanks.

I don't know how I should do this. Should I in my game loop send all
data to the clients in a synchronous way or asynchronous.

If I will send data synchronously then I will stale my game loop for
some time but I will have the knowledge about the funtion result.

If I send data asynchronously my game loop will be not stopped but I
would not know what happened with the data? But I suppose there will
be a callback function as a parameter which will be fired up when
asynchronous call finishes?

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rasberryrabbit · 2013-01-12 12:46

Long time ago, I translate enet library to pascal.

http://enet.bespin.org/index.html

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Dibo · 2013-01-12 13:25

LNet also has UDP components and it is async (you don't need
threading)
http://lnet.wordpress.com/

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Wodzu · 2013-01-12 16:06

Thanks guys.

I think LNet might be what I am looking for.

@parcel,  where I can find the translated headers for ENet? if you
care to share them of course:)

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rasberryrabbit · 2013-01-16 06:36

Quote from: Wodzu on January 12, 2013, 05:06:05 pm@parcel,  where I
can find the translated headers for ENet? if you care to share them of
course:)

There is a some tutorials   http://enet.bespin.org/Tutorial.html

My Pascal translation is same way to using ENet C library. but there
is a winsock.pas dependency.

p.s.
 I am updating ENet 1.3.6 to freepascal. It takes some time.

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rasberryrabbit · 2013-01-19 15:08

ENet 1.3.6 initial translation to fpc. it lacks linux implementaion.



(p.s.)
I fix some mistakes and simple example.