Hi! I’m new to programming and have been playing around with Unreal Blueprints trying to learn. I’m making rock, paper, scissors. The code for checking if you win/lose got a bit messy and required lots of copying/pasting, and I figured I could learn a better way to do things. If you have any tips/advice, I would love to learn. Thank you.
There are multiple ways you could do it. There is no exact solution to this. It can be one or a combination of many types of systems or variables. For instance, you can utilise the use of a switch or enumeration. You can also use functions, macros and boolean checks.
It is up to you how you want to design it to make it more readable.
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One option is as shown below. Three variables of the same Enumerator, with the selector variable (Choices) being a map (to allow names to be converted to numbers). Then compare Enums or maths to arrive at the winner.
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Set up a string array variable for choices like this
Then you can “convert” choices to number values (their index in the array), and use math formula to determine the result :
If math too hard, skip it and just expand the switch to cover all cases after the substraction. Might be even more optimized because less nodes is generally better in blueprints…
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MODULO FTW!
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Thank you for all your help! I already had Enumerators created for Rock Paper Scissors, but I was pretty ignorant about how to use them usefully. I had no idea about “Find”, for example. Your explanation expands my understanding of their uses innumerably. 
Nice! This looks very clean. I wanted to ask this question because I knew when I was copying and pasting a million times that I was being inefficient, and learning how to clean up the mess would teach me, a complete novice, a lot. Thank you for your examples. I will put in some time to learning how this works.
Edit: Okay, I think I get it! This whole “modulo” business is working (I’m over here writing down the equations with paper and pencil like in the olden days), and now I will look into WHY it works because I definitely have no idea. lol
You’re welcome.