BakedOn Entertainment – Online Multiplayer Games

Untiy3D Asynchronous Sockets

March 5, 2010 in Development

There is a lot of discussion on whether you can use threading or asynchronous sockets with Unity3D and with the web player in particular.

I’ve created this sample project to demonstrate how this is done. You’ll see above that when you run it, the project attempts to make several asynchronous connections to web servers and download their default page.

There are a couple of basic things you should watch out for:

Calls to Unity object or the UnityEngine API must be done on the main Unity application thread. You will need to martial values back to that thread. In this example, you’ll notice I don’t update the GUIText text value directly. I update my own internal status string and only update the GUIText during an Update( ) call.
You need to shut down your socket and thread operations when OnApplicaitonQuit( ) is called. Exceptions may be thrown on any asychronous callback and you need to be sure to catch and handle these.

Tags: unity

5 Comments › Leave yours

Joris Henky #

Awesome you could take it even further to VisualStudio??
Bjoern #

Well, it crashes for me when I reload the page and wait a couple of seconds. Is there a reason why you don’t close the sockets, just set the references to null?
Djik #

Hi,

I tried your project but it still crashes when i launch the webplayer and leave the page or reload it in Firefox.
dharamendra thakkar #

hi, this is very useful, but i want to use for toggle on/off the camera of unity3d scene in sequence is it possible to do that?

e.g.
function Update(){
if(toggle){
camera1.enabled = false;
camera2.enabled = true;
toggle = false;
}else{
camera1.enabled = true;
camera2.enabled = false;
toggle = true;
}
}

this is my code for toggle camera but when system is processing other application my above toggle function disturb and the sequence is changed. can do this process in thread’s high priority so any other application or unity’s other function don’t disturb the sequence?
ciaravoh #

Thank you so much. I was looking for such a code (async socket between unity3D and python).