How can I compare two arrays

[nelmi]

Anybody know how i can check if a value of a first array exists in a second array? The values on the first array all exist on the second and I just need a way to get the indexes of these values from the second array

[3dRaven]

Compare macro:

Settings for macro execs and parameters

Use case

[nelmi]

I’m actually using UEFN and we don’t use blueprints on this, only Verse

[3dRaven]

Had to quickly teach myself verse. Luckily it’s pretty close to python in syntax

using { /Fortnite.com/Devices }
using { /Verse.org/Simulation }
using { /UnrealEngine.com/Temporary/Diagnostics }


# See https://dev.epicgames.com/documentation/en-us/uefn/create-your-own-device-in-verse for how to create a verse device.

# A Verse-authored creative device that can be placed in a level
CompareArrays_device := class(creative_device):



    

    # Runs when the device is started in a running game
    OnBegin<override>()<suspends>:void=

        Array1:[]int = array{4,3,1}
        Array2:[]int = array{6,4,8,3,1}
        
        var Output : []int = array{}        
        var loopAr1 : int = 0;
        var loopAr2 : int = 0;
        for (Ar1Val : Array1):
            set loopAr2 = 0
            for (Ar2Val : Array2):                                
                if(Ar1Val = Ar2Val):
                    Print("Found {Ar1Val} at index {loopAr2}")
                    set Output += array{loopAr2}                                
                set loopAr2 += 1
            set loopAr1 += 1
        
        Print("Output")
        var outputString : string = ""
        var loopOut : int = 0
        for (O : Output):
            if(loopOut = 0):
                set outputString += "{O}"
            else:
                set outputString += ",{O}"
            set loopOut+=1
        Print(outputString)
    ```

[nelmi]

Actually was a lot simpler because there’s a function that exists and that is Find (gets the index of a value in an array that you specified in the square brackets).

        for (IndexChosenMaps : chosenMapsArray):
            if (IndexFound := mapStrings.Find[IndexChosenMaps]):
                set indexes += array{IndexFound}