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Question by schwertfisch · Dec 16, 2010 at 06:29 PM · arrayin

Array of Strings and keyword "in"

I understand that a way to use the keyword in would be:

var names = Array("max", "rick", "joe");
if ("joe" in names) Debug.Log("Found Joe!"); 

I created a variable which is an Array of possible tags (as I input them in the Inspector) of my laser beam which is colliding with alien spacecrafts:

var arrayOfColliderTags : Array = new Array("aaa", "bbb", "cccc", "ddd");

and I want the alien spacecraft that I attach this script on, to do something when my laser beams tag is NOT one of the aforementioned Arrays tags. So I say:

if (!col.gameObject.tag in arrayOfGoodColliders){
... do something...
}

I am a beginner, this might seem really basic for most of you, but this script doesnt do anything... Does it have to do with the fact that the Tag is a String? Thanks for reading :-)

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avatar image Proclyon · Dec 16, 2010 at 06:39 PM 0
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I've never seen do used outside do..while , or in used outside for each ... in .... constructions actually. So either this is really interesting or very wrong.

avatar image schwertfisch · Dec 16, 2010 at 06:44 PM 0
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I don't think it's wrong, because I copied the 2 example lines at the beginning of my question from tonyd's Newbie Guide to Unityjavascript: http://forum.unity3d.com/threads/34015-Newbie-guide-to-Unity-Javascript-(long)?highlight=conditions

avatar image Mike 3 · Dec 16, 2010 at 06:46 PM 0
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now that is fun!

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Answer by Mike 3 · Dec 16, 2010 at 06:47 PM

Using the spanking new syntax I just learned, it should be:

if (!(col.gameObject.tag in arrayOfGoodColliders)){
    //... do something...
}

The code before was very likely evaluating !col.gameObject.tag to false, then looking for false in the array

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avatar image schwertfisch · Dec 16, 2010 at 06:57 PM 0
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A 1000 thanks sir, that was it!

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