Comments on: A Useful Messaging System

By: Frank

Frank — Mon, 25 Oct 2010 01:32:34 +0000

but i think it can be handled internally with Unity 3.0 messages (SendMessage and BroadCastMessage send to all children who have handlers for the message (effectively subscribing them)

By: Mathieu

Mathieu — Mon, 27 Sep 2010 19:07:24 +0000

Have you updated this script for Unity3d 3.0?
I’m having some errors:
Assets/_scripts/_messaging/Messenger.js(44,39): BCE0022: Cannot convert ‘Object’ to ‘System.Collections.ArrayList’.

I really like this messaging system, I hope I’ll still be able to use it

By: Jason Larabie

Jason Larabie — Mon, 20 Sep 2010 01:58:30 +0000

I think this should be added to the Unity Wiki. I’ve rebuilt this in C# and have it working. If you decide to put it on Unity Wiki and want it let me know via email.

By: Matthew Wegner

Matthew Wegner — Tue, 29 Dec 2009 21:48:46 +0000

Unity 2.6 can open this project. It is backwards compatible (it’s just that older versions aren’t forwards compatible–if we released a 2.6 project people with 2.5 couldn’t open it).

By: ELMo

ELMo — Thu, 17 Dec 2009 01:22:30 +0000

Any chance that you guys will release a sample project written in Unity 2.6? I’m trying to break into Unity programming, and this seems very helpful, but the system of messages is hard to understand without a working demo (Unity 2.6 isn’t backwards compatible).

By: Benoit FOULETIER

Benoit FOULETIER — Thu, 27 Nov 2008 09:59:04 +0000

Nice framework, very similar to what Mike from Hangout presented at Unite. They’re using C# BTW, with generics for the message type; that adds compile-time consistency check, which is pretty nice I think.
I think they registered per message instead of per category, but I’m pretty sure you could do it too (haven’t scrupulously read your code though):
* make extra category classes, that would be pretty much dummies
* register with Messenger.instance.Listen(Item, this);
* fire with super(Item);
In UnityScript you don’t even need typeof() so you actually save the 2 quote characters
Now that I think of it, your category classes could even inherit from Messenger so you’d go Item.instance.Listen(this)… BTW why do you need an instance? Do you need the messenger to be on scene, can’t it just be static?

….. of course all these frameworks seem crude when you’ve tasted the beauty of true .NET events, associated with IDE support!
But I agree it’s a lot of groundwork, and somehow I’ve always stalled being the first one to try it with Unity, I think the webplayer doesn’t like events too much… plus obviously there’s no IDE support.