How can I emit a global function call?

Question

I'm looking to create a function that behaves similarly to the built in Unity functions Update(), Start(), Awake(), OnCollisionEnter(), etc.

I would like to place a function in several scripts and call all of them at once. For instance, let's say I want to create a touch tracking function that will emit something like "touch_started()" and "touch_ended".

I'd like to be able to add those functions to any number of scripts and have them get called from a different touch tracking script. I don't want to manually call all of the instances where they are defined.

Rather than:

 world_1_script.touch_started();
 world_2_script.touch_started();

I'd like to be able to do something like:

 *.touch_started();

(Obviously that's not going to work and isn't proper code. It's simply an example to illustrate my objective)

Any help would be greatly appreciated. Thanks

Answer 1

Best Answer

Answer by ensomniac · Mar 03, 2014 at 10:06 PM

I saw that this question started getting lots of views so, despite it being a duplicate question, I'm going to post the proper answer I was looking for in case other people find it useful and don't feel like clicking and reading another question.

To globally call a function in any script, you actually use SendMessage(). Here is an example:

 gameObject.SendMessage("touchStarted", someValue);

That will cause every function named "touchStarted" in every script (C & JS) to fire:

 function touchStarted(someValue:float) {
     print(someValue);
 }

Pretty awesome.

Add comment · Share

Answer 2

Answer by Benproductions1 · May 28, 2013 at 04:41 AM

Duplicate Question!

http://answers.unity3d.com/questions/31377/sending-and-receiving-messages-globally-with-broad.html
http://answers.unity3d.com/questions/12103/is-it-possible-to-broadcast-to-all-objects-in-scen.html

Hope this helps,
Benproductions1

Add comment · Show 2 · Share

robertbu · May 28, 2013 at 05:48 AM 1

Share

@$$anonymous$$roductions1 - In all fairness, if you don't know what to call it, is is difficult to search for it. Googling for "How can I emit a global function call Unity3d" doesn't produce any hits for Send$$anonymous$$essage() or Broadcast$$anonymous$$essage().

Benproductions1 · May 28, 2013 at 10:38 AM 0

Share

@robertbu If people knew the diction, like you call a function, you don't "emit" it. Global is used in a different context etc... This would not have happened...
Where are people learning there words??? :O

How can I emit a global function call?

2 Replies

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions