This question was closed Aug 02, 2015 at 08:24 AM by getyour411 for the following reason:

Problem is not reproducible or outdated

Question by getyour411 · Aug 02, 2015 at 07:46 AM · c#event delegate

C# event setup, no result

Class one on Skellie has:

 public delegate void MobPulled();
 public event MobPulled mobPulled;

Class two on Skellie has:

 void OnEnable() {
     one.mobPulled += PlayParticles;
 }
 
 void PlayParticles() {
     particles.Play ()

Class one has method

 ...
         Debug.Log("Publis$$anonymous$$ng...");
             if (mobPulled != null) {
         Debug.Log ("...Event published");
                 mobPulled (); }
 ...

Publis$$anonymous$$ng shows up, Event published does not (so subscribers is null?) and the particles don't play - what have I missed?

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getyour411 · Aug 02, 2015 at 08:25 AM 0

I had a gameoject in the Prefab hierarchy accidentally disabled. Once I enabled that on the prefab, this all worked fine.

fafase · Aug 02, 2015 at 09:42 AM 0

Keep in mind that if your item gets enable/disable many times, you are registering an extra method each time.

So you will see PlayParticles being called 1,2,3 or more times since each enabling registers the method.

You would need to remove the listener on disable and on destroy. The second will prevent a NRE since the event would call a method on an object that does not exist anymore.