Remove from array is not working

bostonDownamics · January 22, 2023, 2:19am

I don’t know if this is a bug or I’m doing something wrong.
I have a struct list that stores which characters follow which. I can add to this struct but when I try to remove characters, it only removes half at a time.

This is the code:

The struct is “Follow List” and is just an array of 2 actors. The struct takes in the “Leader” and the “Followers” like so:

And the idea for stopping the followers from following was to remove the leader entries.
But for some reason, it only removes half of the entries at a time.

The way I’m working around this is by running it 5 times in a row.

Is this a bug?

Supremative · January 22, 2023, 5:14am

You should remove elements in reverse order.

My Products

Husky211 · January 22, 2023, 5:29am

It is not a bug, you cannot remove an item that is in the middle of an array, when you remove an item, what the array does is reorder the IDs, for example id1=A, id2=B, id3=C, Id4= D, if u remove “B” now u array is id1=A, id2=C, id3=D

If you want the Id to be permanent and you don’t want these problems, you can use a dictionary that in unreal engine is called “MAP” or delete from the last Id

bostonDownamics · January 22, 2023, 5:34am

Ok thank you, I didn’t realise that it worked like that

JDARRAS · January 10, 2024, 2:01pm

I have the same problem but with CLEAN. I tought when you clen an array, it’s empty.