How would i make a sound listener

Help and Feedback Scripting Support
#1

basically im trying to make the minecraft warden, and the warden is blind and cannot see so it relies on sound to find its prey.

how would i make something that can listen for sounds?

#2

I’m very confused on what you mean. Do you mean that the walk noise will lure the warden? Or is there another way to make noise in your game?

#3

yeah i want to make it so it can listen for sounds and the warden will go after it
example, if player makes a sound and the warden is within range to be able to hear it, it’ll start running towards the player

#4

here’s the wiki page about it

#5

Ok, I know what the Minecraft Warden is, I’ve played Minecraft. But are you saying that EVERY single noise a player makes the warden will go after? If so, this is pretty diffucult

#6

not like every sound, but when they are sneaking no, but running yes
just sounds that are loud enough, that the warden will detect

#7

you could check humanoidrootpart assemblylinearvelocity, thats how i used to do it, (and no, i dont have the code anymore, sorry)

#8

or, simply, use remote events whenever the players walk sound is played

#9

You could probably create a sound in workspace under a BasePart and check for the distance between the BasePart and enemy:

Example

-- Enemy script
local collectionService = game:GetService("CollectionService") -- CollectioService is useful for groups of objects
local soundTag = "Noise" -- The CollectionService tag of the parts that are created

local function getDistance(basepart: BasePart) : number
    -- Returns the distance (in studs) between the enemy and the sound
    -- 'EnemyPos' would be the position of the enemy
    return (EnemyPos.Position - basepart.Position).Magnitude
end

local function onItemAdded(instance: BasePart)
    local distance = getDistance(instance) -- Get the distance
    local sound = instance:FindFirstChildOfClass("Sound") -- Get the sound Instance
    -- The sound instance can be useful for seeing how loud the sound is via
    -- the Sound.PlaybackLoudness property

    if (distance < 12) then
      -- this checks if the distance is less than a certain amount of studs
      --... do something
    end
end

-- Detect when a new sound is created
collectionService:GetInstanceAddedSignal(soundTag):Connect(onItemAdded)

-- Sound Creation
local collectionService = game:GetService("CollectionService")
local soundTag = "Noise"

local function createSound()
   local part = Instance.new("Part")
   local sound = Instance.new("Sound")

   part.CFrame = -- CFrame of where the sound will be created
   part.Anchored = true -- Make the object anchored
   part.Transparency = 1 -- Make the object invisible
   part.CanCollide = false -- Disable collisions
   part.Parent = workspace -- Parent the object to workspace

   sound.SoundId = "rbxassetid://" -- SoundId of the sound
   sound.Parent = part -- Parent the sound to the object
   sound:Play() -- Play the sound

   collectionService:AddTag(part, soundTag) -- Add the "Noise" tag to the object
end

createSound() -- Creates a new sound

This is just how I would go about making a system like this.

This is a little late, but here’s the scripts in a practical sense (distance set to 40 studs):

Whenever a sound is created, the NPC hears it and moves towards it

2 Likes
Attempting to make a 'blind' monster
#10

what about projectiles, samething?

#11

Well I guess what you could do is if the player is sprinting then you could create an invisible part that the warden moves to
Example:

local player = game.Players.LocalPlayer
local UIS = game:GetService("UserInputService")

UIS.InputBegan:Connect(function(input)
    if input == Enum.KeyCode.Shift then
        player.Character.Humanoid.SpeedAmount = 50 -- or whichever number you want
        local headPos = player.Character:WaitForChild("Head").CFrame
        local headBrick = Instance.new("Part")
        headBrick.CFrame = headPos
        local warden = --wherever your warden is located
        warden.PrimaryPart.CFrame = headBrick.CFrame
        --if you have an animation to move your warden you will need to change the line above
    end
end)
#12

You could say, for every time you run a play function in your script( Example: Run:Play() ).

Check if the distance from the warden to the player is in a specific range, if so then let the warden walk to the player.