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How to use ForEachLoop to remove items from array?

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Hello! For example of problem I created a simple Blueprint - I'm adding some elements to empty Cell_Array and then try to remove them all. But 1/2 of elements are still in Cell_Array after all. How to remove elements from Cell_Array while iteration using only blueprint scripting? What is the usual solution? Thanks!

Product Version: UE 4.8
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asked Aug 27 '15 at 02:49 PM in Blueprint Scripting

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TVinforest
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avatar image Barakka Jan 08 '18 at 12:17 AM

Great Job!

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2 answers: sort voted first

The problem is that as you remove items from the array, it shrinks some elements passed below your current index. You can create a ForLoop to go in reverse manually.

Hope that Helps =)

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answered Aug 27 '15 at 03:00 PM

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Devero
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avatar image Devero Aug 27 '15 at 03:13 PM

Here is the Macro code to create your own "ForEachLoopReversed" =)

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avatar image TVinforest Aug 27 '15 at 03:23 PM

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Copy the array, now you have 2 identical arrays. Do foreach loop on either array and remove the coresponding index from the another array. Should work.

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answered Aug 27 '15 at 03:25 PM

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Oti
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