Parent error

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Hello, I have a problem with defining parents in Unity.

I have an empty gameobject Town with 6 Building objects inside. During the game player places 10 Citizen objects inside these buildings and they become children each of their own building. During the game a random Citizen is picked and variable Location is defined as the Building where the picked Citizen is at the moment.

GameObject Location=Citizen.transform.parent.gameObject;

(In other words, the ierarchy is Town->Building->Citizen) And it works almost perfectly fine, but sometimes Location is defined as Town, not as Building. What can be the problem here?

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Answer by UniqueMAX · May 16, 2015 at 12:58 PM

I've just found something really strange while debugging. Turns out in this line

 Victims=Location.GetComponentsInChildren<Transform>();

the Victims[0] object is not the first child of Location but the Location itself.

 Victims[0]=Location
 Victims[1]=CitizenChild1
 Victims[2]=CitizenChild2

and etc.

I wanted to ask if the first index in C# arrays is 0 or 1? And does the last index equal Array.Length or Array.Length-1?

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Dblfstr · May 16, 2015 at 01:59 PM 0

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An array with 6 elements has indexes 0-5.

Dblfstr · May 16, 2015 at 02:03 PM 0

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Also Random.Range excluded the upper bound. $$anonymous$$eaning random.range(0,6) will give 0 1 2 3 4 5.

So Random.Range(0,victims.length); is apprpriate.

UniqueMAX · May 16, 2015 at 03:10 PM 0

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Oh, thank you! I was getting an error in range when there were no citizens in Location.

Parent error

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