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Question by DevKonsept · Mar 25 at 05:21 PM · c#transformgetcomponentmissing-reference

I want to check if variable is missing(not null),Can't check if object has missing variable

As shown on pictures I wan't to destroy an object if it has a missing transform variable on script.

currentLeadTransform is a Transform variable. I wan't to destroy gameObject if it is missing(not null).

 **if (gameObject.GetComponent().currentLeadTransform == null) Destroy(gameObject);**

I have tried code above but it didn't work.

Thanks to everyone who want to help. Much love.

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missingtrasnform.jpg (127.3 kB)
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avatar image andrew-lukasik · Mar 25 at 11:34 AM 0
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Do not post code as images as it makes harder for people to respond to you. There is a option for code formatting here so you can copy&paste it just fine.

avatar image andrew-lukasik · Mar 25 at 11:40 AM 0
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Overall, your code works fine. The thing is that you don't understand what does what yet. Work on that mate.

gameObject.GetComponent<ClassYouAreWritingThisCodeIn>() means the same as this ("this class instance"). So, your code does this:

 void Update ()
 {
     if( current$$anonymous$$Transform==null ) return;
     transform.position = some_new_value;
     if( current$$anonymous$$Transform==null ) Destroy( gameObject );
 }

The second if statement will never pass as true. Think this through, take your time.

avatar image andrew-lukasik · Mar 25 at 11:42 AM 0
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Oh, and one more thing: null means "missing".

To test for "not missing": if( variable != null )

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