Connecting two devices using libgdx

Question

I'm developping a video game on both pc and android using libgdx. And i would like to connect them by Wifi or Bluetooth on a local network. The idea is to play in p2p, establishing this connection easily. Please anyone can give help or source code for that, knowing that the connections can be : android/android but also PC/PC (since libgdx allows that)? I have absolutely no idea.

Thanks

score 8 · Answer 1 · edited Jul 06 '15 at 20:19

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Well because libgdx doesn't have good networking support you can write your own, but i've found that Kryonet is very good. It takes a lot of the hassle out of writing the network layer of your application and I've used it to connect mobile and desktop with no problems. Definably worth a quick view. It also has some good examples to get your up and running with a network game too.

I've also found this article by valve very usefull.

edited Jul 06 '15 at 20:19

James Skemp

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answered Mar 03 '13 at 12:14

joey.enfield

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Kryonet is good, but it's not possible to export an iOS app using LibGDX + Kryonet yet. – Ben Poulson Aug 29 '13 at 14:41
iOS doesn't support any of the Kryonet library when it's converted over for iOS use. – Ben Poulson Sep 09 '13 at 12:34
I thought that the RoboVM is based on Android, and since android includes all the standard classes so KryoNet should work... What is the exact error you are getting? – joey.enfield Sep 09 '13 at 12:53
RoboVM has only been properly released for use within the past few days. Your comment was posted in August. – Ben Poulson Sep 09 '13 at 14:31
At the time, iOS port also hadn't been released :) – joey.enfield Sep 09 '13 at 15:05
Well that leaves me a little bit red-faced.. Dam this internet thing for keeping good records :) – joey.enfield Sep 09 '13 at 16:21
Awesome Valve link! I was doing all the Kryonet stuff with just Java, total waste of time given Kryonet is so easy! – John Jun 10 '18 at 11:43

score 2 · Answer 2 · edited May 23 '17 at 11:50

Networking is somewhat beyond the scope of Libgdx. There is some basic support for HTTP GET/POST/PUT, but it implies you already have a DNS name or IP address to connect to, which usually implies you have a relatively fixed "server" to connect to (not an arbitrary peer). Peer-to-peer networking is definitely beyond the scope of Libgdx.

On the upside, since Android and Desktop networking are already pretty close, you can use most any pure-Java networking infrastructure that supports peer-to-peer. See other Stack Overflow questions like: Peer-to-Peer communication options I think you'll discover that the really hard part of peer-to-peer networking is "discovery" (that is figuring the address of the peer you care about).

score 1 · Answer 3 · answered Aug 29 '13 at 14:38

There is little to no documentation on it, but LibGDX does have a platform independant (Android, Desktop, iOS and GWT) socket class.
I'd link you to an example of it's usage, but as I stated; there's no written documentation/example.

However, I can give you this link as a good starting point.

http://libgdx.badlogicgames.com/nightlies/docs/api/com/badlogic/gdx/Net.html

score 0 · Answer 4 · answered Aug 29 '13 at 04:39

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libgdx-net looks good. https://github.com/pepedeab/libGDX-Net

Ive not yet tested it myself though.

answered Aug 29 '13 at 04:39

Chozabu

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It's quite outdated now, and also doesn't yet support iOS. – Ben Poulson Aug 29 '13 at 14:39

Connecting two devices using libgdx

4 Answers4