Math.random excluding

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1

So I have this keypad which you need 5 pieces of information to solve. Usually, for everyone 1 keypad there will be (in this case) 5 pieces of information + 1. So there will be 6 possible spots a piece of the keypad will be. So i want to assign every piece of information to 1 place, but when I use math.random(1,6), more likely than not, the same place will hold 2 pieces of info. Is there a way i can exclude a number when doing math.random so every time i do math.random it will be between numbers which havent already been picked?

(What I’ve done is for every keypad there are x string values and each string value has the name of a place in the workspace.)

2

you can just add the already used numbers to a table and reroll if the mathrandom rolls something that is already in the table

3

As CZXPEK said, you could store the already used numbers and then repeat the rolling until it gets a new number.

Alternatively, you could store the locations in a table, which you then remove the locations from when they are picked

e.g.

local Locations = {...} -- Set this

function GetLocationsExample()
    local Possible = table.clone(Locations)
    
    local Index1 = math.random(#Possible)
    local Chosen1 = Possible[Index1] -- This is the first location
    table.remove(Possible, Index1)

    local Index2 = math.random(#Possible)
    local Chosen2 = Possible[Index1] -- This is the second location
    table.remove(Possible, Index2)
end

You can adjust the script to make use of for i = 1, 5 and stuff depending on how you have your game setup or personal preference. You can keep adding more index things, the 2 included are just examples.