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Question by Dainiusss · May 11, 2015 at 02:41 PM · c#arrayvectorvaluedefault

How to check if vector in array was not changed?

Hello. I have stuck with one problem. I want to check, whether a vector2 in my vector2 array has never been changed since I created my array. With integer array this was quite simple:

  if (intarray[0] == default(int))

... but with vector2 array this does not work:

 if (vector2array[0] == default(Vector2))

So how can I check if vector2 has been changed from it's default value? Thank you.

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Answer by $$anonymous$$ · May 11, 2015 at 03:33 PM

Just store an "OldValue" of that Vector like this:

 private void Update()
 {
      if (OldVect != vector2array[0])
          // Vector has Changed
 
      OldVect = vector2array[0];
 }
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avatar image Dainiusss · May 11, 2015 at 05:57 PM 0
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Thank you! Although this was not the straightforward way to solve my problem, it gave me a strong and huge clue how to do it. Thank you again!

avatar image $$anonymous$$ · May 11, 2015 at 06:07 PM 0
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you're welcome :)

avatar image Pangamini · May 12, 2015 at 06:56 AM 0
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I don't know the context, but in some cases it might be better to "check" when you are changing the value in the array, that would be more reactive approach.

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