# How to Make an Array from every valid connected pin at a Select Node? **URL:** \ **Category:** Blueprint\ **Tags:** unreal-engine, question\ **Created:** [July 9, 2024, 3:35am UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224 "2024-07-09T03:35:28Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![XxNotAGamerxX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@XxNotAGamerxX](https://forums.unrealengine.com/u/XxNotAGamerxX)\ **Post date:** [July 9, 2024, 3:35am UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/1 "2024-07-09T03:35:28Z")
1. How can I populate an Array (add indexes) for each valid and unique PIN (object) that is connected to a Select node? (to make a matching pair) 2. Or what is an alt Node method (that displays Enum options / has named Enum pins) - so that names match? Ty 🙂 - Meaning I want to use a Select node (because it spells out the names) so Users know where to manually connect their SK meshes - which I want them to match to [the named Enum categories] connected to the Select node. - - I want to simplify setup by only requiring the User to connect their [unknown number of] SK meshes once - to the Select node, after which [my code] sets up other variables to match. This is why I cant use a Make array node & Loop, before the Cases node: * * * - - I tried the code below, but it does not work to make an array of all [attached pins] because the Select Enum can only be set to 1 item/index at a time - so it stops at only 1 item. - - How can I loop this logic to cycle through every Enum element in the Enum variable (7 indexes)? \> and set each as an Array index of the SK mesh variable type? - - (The code in the gray box is a community plugin, which may or may not be a way to get the solution. But I need one Event to trigger multiple pins, so I can loop \> set each Enum for the # of indexes it has \> to then use the Select node in a loop \> to add to the Array.) ![BP_FirstPersonCharacter1_EnumTest_00006](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/2/0/02037490478d4db068eb31622dac94fd21f6793a.png) ---
**Author:** ![XxNotAGamerxX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@XxNotAGamerxX](https://forums.unrealengine.com/u/XxNotAGamerxX)\ **Post date:** [July 9, 2024, 7:07am UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/2 "2024-07-09T07:07:40Z")
I found this incomplete code that seems to make a loop by getting length of Enum. 1. Anyone know how to complete it - what connects to the -1/1 reroute pin? ![UnrealEditor_pHHzndPPhr](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/7/6/f76a5e96e958a0cdc9c47230f3d15524f95a6505.png) > [@How to properly loop through enumerations](https://forums.unrealengine.com/t/how-to-properly-loop-through-enumerations/333671/6): > > I’m used to do that in BP, works well slight_smile And what did he mean by making an extra (unused index) in the enum? ---
**Author:** ![Everynone](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/everynone/32/1135017_2.png) [@Everynone](https://forums.unrealengine.com/u/Everynone)\ **Post date:** [July 9, 2024, 7:22am UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/3 "2024-07-09T07:22:40Z")
> [@XxNotAGamerxX](#): > > a matching pair Are you sure you’re not simply looking for the `tMap`: > **[Map Containers in Unreal Engine | Unreal Engine 5.4 Documentation | Epic...](https://docs.unrealengine.com/4.27/en-US/ProgrammingAndScripting/Blueprints/BP_HowTo/WorkingWithMaps/)** > > TMaps are defined by two types, a key type and a value type, which are stored as associated pairs in the map in Unreal Engine. It allows for association: `Enumerator` → `Skeletal Mesh`, for example. Maps and Sets only sport unique keys by default. * * * > How can I loop this logic to cycle through every Enum element in the Enum variable You can literally loop through any enumerator: ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/6/1/b61707ee07418c7a08415d3eb05708925cbb9936.png) Search for `ForEach YourEnumerator` * * * Not gonna lie, not entirely sure what the end goal here is, so my suggestion might be _off_. * * * > what connects to the -1/1 reroute pin Index cycling, most likely. You `++` / `--` to pull next / previous element from the enumerator - just an int here. That’d be useful if you had something like a weapon select wheel (like GTA) and wanted to cycle through available choices. I feel like the person did not realise one can loop through enums or add bytes: ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/b/f/0bfd3190be3769ee888f71292a5cf65e9bea2404.png) But, perhaps, the rest of the script needed integers. ---
**Author:** ![XxNotAGamerxX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@XxNotAGamerxX](https://forums.unrealengine.com/u/XxNotAGamerxX)\ **Post date:** [July 9, 2024, 7:54am UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/4 "2024-07-09T07:54:33Z")
Yes thanks! That Enum Loop is what I needed 🙂 . I couldnt find the correct way to get it w/specific Enum. - And yes ty for the PSA, I use Map in my function (which was the other goal). Does this look correct? ![BP_FirstPersonCharacter1_EnumTest_00008](https://d3kjluh73b9h9o.cloudfront.net/original/4X/f/1/8/f1847f9274b19b70744d410fe510dec2b51cee52.jpeg) ![UE5 Enum loop length test](https://d3kjluh73b9h9o.cloudfront.net/original/4X/1/d/f/1dfaca677b96d8613cadca9bc32f353c28bf3d53.png) * * * Bonus: > [@Everynone](#): > > Index cycling, most likely. You `++` / `--` to pull next / previous element from the enumerator - just an int here. That’d be useful if you had something like a weapon select wheel (like GTA) and wanted to cycle through available choices. That’s my next goal lol. Can you show a pic of that ++ connection for context? - I have this but in a different context. I’d also like the mouse scroll meth. Ty 🙂 ![BPGraphScreenshot_2024Y-07M-09D-00h-52m-24s-369_00](https://d3kjluh73b9h9o.cloudfront.net/original/4X/b/6/5/b65fa3767e4fb14671129a69ac17c6e22679215e.png) ---
**Author:** ![Everynone](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/everynone/32/1135017_2.png) [@Everynone](https://forums.unrealengine.com/u/Everynone)\ **Post date:** [July 9, 2024, 8:39am UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/5 "2024-07-09T08:39:06Z")
Looks fine to me. * * * Either this: ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/2/2/82258cacfd15f4fe578fcd4217f10050ec7e7c2d.png) Or something very close to this. * * * Something older, with integers: [https://dev.epicgames.com/community/learning/tutorials/qZ7/weapon-cycling](https://dev.epicgames.com/community/learning/tutorials/qZ7/weapon-cycling) ---
**Author:** ![XxNotAGamerxX](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@XxNotAGamerxX](https://forums.unrealengine.com/u/XxNotAGamerxX)\ **Post date:** [July 9, 2024, 8:20pm UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/6 "2024-07-09T20:20:25Z")
> [@Everynone](#): > > weapon-cycling Thanks for the pic and link. But the link is 404. This is why I cannot find old tutorials, Epic keeps redeemering their official links. Do you know where the new link is? (I searched, didn’t find.) ---
**Author:** ![Everynone](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/everynone/32/1135017_2.png) [@Everynone](https://forums.unrealengine.com/u/Everynone)\ **Post date:** [July 9, 2024, 10:37pm UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/7 "2024-07-09T22:37:27Z")
![wcycle.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/6/b/8/6b89be86e07d8fb5d263877ff565a61f2ac565a8.png) The tut (not really one) was published when the tool was in its infancy, perhaps that’s why it’s acting up. Pic related. ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [August 8, 2024, 10:37pm UTC](https://forums.unrealengine.com/t/how-to-make-an-array-from-every-valid-connected-pin-at-a-select-node/1931224/8 "2024-08-08T22:37:38Z")
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