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Question by chiggafoo · Jul 01, 2012 at 05:57 PM · collisionarraygameobjects

Arrays and Colliders.

Lets say i have an array of 3 GameObjects each with a collider. How can i check for collision for each individual GameObject in the array?

like

 If(COLLISION ON ARRAY[0]){
 
     Do Something();
 }
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avatar image whydoidoit · Jul 01, 2012 at 06:01 PM 0
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Is there some reason why you don't just want to use the collision events?

avatar image chiggafoo · Jul 01, 2012 at 06:45 PM 0
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you mean Void OnTriggerEnter()? If so how can i check if the object collided with a collider in the Array.

avatar image whydoidoit · Jul 01, 2012 at 06:47 PM 0
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Are they triggers?

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Answer by whydoidoit · Jul 01, 2012 at 06:51 PM

If you really want to use an array:

     import System.Linq;

     ...
     var arrayOfGameObjects : GameObject[];

     function OnTriggerEnter(other : Collider) {

         var index = arrayOfGameObjects.FindIndex(function(g) { return g == other.gameObject; });
         //Index will be -1 if no match

     }


But you could use a List:

    import System.Linq;
    import System.Collections.Generic;

     ...
     var listOfGameObjects : List.<GameObject>;

     function OnTriggerEnter(other : Collider) {

         var index = listOfGameObjects.IndexOf(other.gameObject);
         //Index will be -1 if no match

     }
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avatar image chiggafoo · Jul 01, 2012 at 10:02 PM 0
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is this convertable to c#? im trying to convert myself but im having some issues.

avatar image chiggafoo · Jul 01, 2012 at 10:03 PM 0
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never$$anonymous$$d i got it converted!

avatar image whydoidoit · Jul 01, 2012 at 10:05 PM 0
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Great! Worth re$$anonymous$$ding us what language you want in your question...

avatar image Drakestar · Jul 01, 2012 at 10:09 PM 2
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If you want to be even more terse in C#, you can use a Lambda expression. You don't need the Linq namespace for that, either:

int index = m_ClustersThisFrame.FindIndex(g => g == other.gameObject);

avatar image whydoidoit · Jul 01, 2012 at 10:15 PM 0
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Good point - I always forget the FindIndex is one of the few things that isn't Linq :)

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