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How do I prevent math.random from picking the same number from a table twice in a row?

Asked by
gamerpenguinpvp34 2
3 years ago

So I got this function on a module:

function main:GetRandomSound(SoundTable)
    return SoundTable[math.random(#SoundTable)]
end

return main
--those are the final lines of the script.

It picks a random number from the sound table, but I want to make it so it doesn't pick the same number twice. How can I do this?

2 answers

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Answered by
xXLegendGamerz16Xx 231 Moderation Voter
3 years ago

Why don't you save the last picked number and compare it, if its the same number then increase the value by 1?

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And how can I do that? gamerpenguinpvp34 2 — 3y
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Show the script xXLegendGamerz16Xx 231 — 3y
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there it is gamerpenguinpvp34 2 — 3y
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and he died. gamerpenguinpvp34 2 — 3y
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Answered by
gamerpenguinpvp34 2
3 years ago 
local main = {}

main.SoundIds = {

    Concrete = {
        "rbxassetid://6026529903",
        "rbxassetid://6026529887",
        "rbxassetid://6026529862",
        "rbxassetid://6026529840",
        "rbxassetid://6026529818",
        "rbxassetid://6026529791",
        "rbxassetid://6026529773",
        "rbxassetid://6026529752",
        "rbxassetid://6026529732",
        "rbxassetid://6026529709",
        "rbxassetid://6026529682",
        "rbxassetid://6026529649",
        "rbxassetid://6026529624",
        "rbxassetid://6026529596",
        "rbxassetid://6026529570",
        "rbxassetid://6026529548",
        "rbxassetid://6026529529"
    },

    Dirt = {
        "rbxassetid://6026529510",
        "rbxassetid://6026529479",
        "rbxassetid://6026529455",
        "rbxassetid://6026529426",
        "rbxassetid://6026529403",
        "rbxassetid://6026529380",
        "rbxassetid://6026529353",
        "rbxassetid://6026529332",
        "rbxassetid://6026529302",
        "rbxassetid://6026529285",
        "rbxassetid://6026529263",
        "rbxassetid://6026529241",
        "rbxassetid://6026529218",
        "rbxassetid://6026529201"
    },

    Glass = {
        "rbxassetid://6026529185",
        "rbxassetid://6026529160",
        "rbxassetid://6026529132",
        "rbxassetid://6026529110",
        "rbxassetid://6026529091",
        "rbxassetid://6026529067",
        "rbxassetid://6026529041",
        "rbxassetid://6026529021"
    },

    Gravel = {
        "rbxassetid://6026528992",
        "rbxassetid://6026528968",
        "rbxassetid://6026528938",
        "rbxassetid://6026528910",
        "rbxassetid://6026528890",
        "rbxassetid://6026528867",
        "rbxassetid://6026528838",
        "rbxassetid://6026528810",
        "rbxassetid://6026528783",
        "rbxassetid://6026528757"
    },

    Metal_Chainlink = {
        "rbxassetid://6026528733",
        "rbxassetid://6026528705",
        "rbxassetid://6026528676",
        "rbxassetid://6026528646",
        "rbxassetid://6026528628",
        "rbxassetid://6026528611",
        "rbxassetid://6026528585",
        "rbxassetid://6026528552"
    },

    Metal_Grate = {
        "rbxassetid://6026528156",
        "rbxassetid://6026528216",
        "rbxassetid://6026528188",
        "rbxassetid://6026528244",
        "rbxassetid://6026528266",
        "rbxassetid://6026528287",
        "rbxassetid://6026528308",
        "rbxassetid://6026528332",
        "rbxassetid://6026528357",
        "rbxassetid://6026528385",
        "rbxassetid://6026528410",
        "rbxassetid://6026528441",
        "rbxassetid://6026528469",
        "rbxassetid://6026528496",
        "rbxassetid://6026528524"
    },

    Metal_Solid = {
        "rbxassetid://6026527724",
        "rbxassetid://6026527764",
        "rbxassetid://6026527787",
        "rbxassetid://6026527808",
        "rbxassetid://6026527837",
        "rbxassetid://6026527863",
        "rbxassetid://6026527891",
        "rbxassetid://6026527914",
        "rbxassetid://6026527941",
        "rbxassetid://6026527966",
        "rbxassetid://6026527992",
        "rbxassetid://6026528021",
        "rbxassetid://6026528049",
        "rbxassetid://6026528077",
        "rbxassetid://6026528109",
        "rbxassetid://6026528135"
    },

    Mud = {
        "rbxassetid://6026527485",
        "rbxassetid://6026527515",
        "rbxassetid://6026527542",
        "rbxassetid://6026527565",
        "rbxassetid://6026527590",
        "rbxassetid://6026527619",
        "rbxassetid://6026527643",
        "rbxassetid://6026527701",
        "rbxassetid://6026527665"
    },

    Rubber = {
        "rbxassetid://6026527312",
        "rbxassetid://6026527333",
        "rbxassetid://6026527355",
        "rbxassetid://6026527373",
        "rbxassetid://6026527397",
        "rbxassetid://6026527418",
        "rbxassetid://6026527438",
        "rbxassetid://6026527460"
    },

    Sand = {
        "rbxassetid://6026526986",
        "rbxassetid://6026527009",
        "rbxassetid://6026527039",
        "rbxassetid://6026527068",
        "rbxassetid://6026527096",
        "rbxassetid://6026527126",
        "rbxassetid://6026527161",
        "rbxassetid://6026527185",
        "rbxassetid://6026527213",
        "rbxassetid://6026527233",
        "rbxassetid://6026527251",
        "rbxassetid://6026527280"
    },

    Tile = {
        "rbxassetid://6026526636",
        "rbxassetid://6026526656",
        "rbxassetid://6026526679",
        "rbxassetid://6026526696",
        "rbxassetid://6026526715",
        "rbxassetid://6026526748",
        "rbxassetid://6026526771",
        "rbxassetid://6026526795",
        "rbxassetid://6026526825",
        "rbxassetid://6026526840",
        "rbxassetid://6026526866",
        "rbxassetid://6026526891",
        "rbxassetid://6026526928",
        "rbxassetid://6026526956"
    },

    Wood = {
        "rbxassetid://6026526251",
        "rbxassetid://6026526275",
        "rbxassetid://6026526300",
        "rbxassetid://6026526323",
        "rbxassetid://6026526351",
        "rbxassetid://6026526385",
        "rbxassetid://6026526422",
        "rbxassetid://6026526450",
        "rbxassetid://6026526470",
        "rbxassetid://6026526499",
        "rbxassetid://6026526518",
        "rbxassetid://6026526541",
        "rbxassetid://6026526561",
        "rbxassetid://6026526588",
        "rbxassetid://6026526612"
    },

    Snow = {
        "rbxassetid://6045131088",
        "rbxassetid://6045131054",
        "rbxassetid://6045131022",
        "rbxassetid://6045130992",
        "rbxassetid://6045130947",
        "rbxassetid://6045130914",
        "rbxassetid://6045130868",
        "rbxassetid://6045130832",
        "rbxassetid://6045130795",
        "rbxassetid://6045130744",
        "rbxassetid://6045130703",
        "rbxassetid://6045130649"
    }

}

main.MaterialMap = {

    [Enum.Material.Slate] =         main.SoundIds.Concrete,
    [Enum.Material.Concrete] =      main.SoundIds.Concrete,
    [Enum.Material.Brick] =         main.SoundIds.Concrete,
    [Enum.Material.Cobblestone] =   main.SoundIds.Concrete,
    [Enum.Material.Sandstone] =     main.SoundIds.Concrete,
    [Enum.Material.Rock] =          main.SoundIds.Concrete,
    [Enum.Material.Basalt] =        main.SoundIds.Concrete,
    [Enum.Material.CrackedLava] =   main.SoundIds.Concrete,
    [Enum.Material.Asphalt] =       main.SoundIds.Concrete,
    [Enum.Material.Limestone] =     main.SoundIds.Concrete,
    [Enum.Material.Pavement] =      main.SoundIds.Concrete,

    [Enum.Material.Plastic] =       main.SoundIds.Tile,
    [Enum.Material.Marble] =        main.SoundIds.Tile,
    [Enum.Material.Granite] =       main.SoundIds.Tile,
    [Enum.Material.Neon] =          main.SoundIds.Tile,

    [Enum.Material.Wood] =          main.SoundIds.Wood,
    [Enum.Material.WoodPlanks] =    main.SoundIds.Wood,

    [Enum.Material.DiamondPlate] =  main.SoundIds.Metal_Solid,
    [Enum.Material.Metal] =         main.SoundIds.Metal_Solid,

    [Enum.Material.CorrodedMetal] = main.SoundIds.Metal_Grate,

    [Enum.Material.Grass] =         main.SoundIds.Dirt,
    [Enum.Material.Ground] =        main.SoundIds.Dirt,
    [Enum.Material.LeafyGrass] =    main.SoundIds.Dirt,

    [Enum.Material.Sand] =          main.SoundIds.Sand,
    [Enum.Material.Fabric] =        main.SoundIds.Sand,
    [Enum.Material.Salt] =          main.SoundIds.Sand,

    [Enum.Material.Snow] =          main.SoundIds.Snow,

    [Enum.Material.Ice] =           main.SoundIds.Glass,
    [Enum.Material.Glacier] =       main.SoundIds.Glass,
    [Enum.Material.Glass] =         main.SoundIds.Glass,

    [Enum.Material.Pebble] =        main.SoundIds.Gravel,

    [Enum.Material.SmoothPlastic] = main.SoundIds.Rubber,
    [Enum.Material.ForceField] =    main.SoundIds.Rubber,
    [Enum.Material.Foil] =          main.SoundIds.Rubber,

    [Enum.Material.Mud] =           main.SoundIds.Mud,

}

function main:GetTableFromMaterial(EnumItem)
    if typeof(EnumItem) == "string" then -- CONVERSION
        EnumItem = Enum.Material[EnumItem]
    end
    return main.MaterialMap[EnumItem]
end

function main:GetRandomSound(SoundTable)
    return SoundTable[math.random(#SoundTable)]
end


return main

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