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Question by Mr_T · Dec 29, 2010 at 08:18 PM · errorcastingparticleemitter

Casting error on multiple emitters

function Start()
{
    var emitters : ParticleEmitter[];
    emitters = GetComponentsInChildren(ParticleEmitter);
    for (var emitter: ParticleEmitter in emitters) 
    {
        emitter.emit = false;
    }    
}

I am trying to turn a set of emitters on and off. When I use this script I get "Cannot cast from source type to destination type."

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Answer by Justin Warner · Dec 29, 2010 at 08:23 PM

function Start() {

 var emitters : ParticleEmitter[];
 emitters = GetComponentsInChildren(ParticleEmitter);

 for (var emitter: ParticleEmitter in emitters)
 { 
     emitter.emit = false;
 } 

}

Rather .emit, use .enable maybe, but I'm mostly just cleaning up your code and putting it in tags...

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avatar image Mr_T · Dec 29, 2010 at 08:34 PM 0
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Sorry the code formatting didn't come through, but that was a totally useless reply. Emit is true or false and the error is in the Get Components line.

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Answer by Molix · Apr 15, 2011 at 06:22 PM

GetComponentsInChildren returns a Component[], so you need to get them as that, then cast each to ParticleEmitter, e.g.

var emitters: Component[];
emitters = GetComponentsInChildren(ParticleEmitter);
for( var comp : Component in emitters )
{
  ParticleEmitter emitter = (ParticleEmitter)comp;
  emitter.emit = false;
}
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Answer by Mr_T · Jan 29, 2011 at 05:02 AM

I ended up fixing this by targeting the individual game objects instead of trying to target them as a group using the for loop. I still don't understand why I can't target them as components in children

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