– Roblox character sound script
local Players = game:GetService(“Players”)
local RunService = game:GetService(“RunService”)
local SOUND_DATA = {
Climbing = {
SoundId = “rbxasset://sounds/action_footsteps_plastic.mp3”,
Looped = true,
},
Died = {
SoundId = “rbxasset://sounds/uuhhh.mp3”,
},
FreeFalling = {
SoundId = “rbxasset://sounds/action_falling.mp3”,
Looped = true,
},
GettingUp = {
SoundId = “rbxasset://sounds/action_get_up.mp3”,
},
Jumping = {
SoundId = “rbxassetid://5151602926”,
},
Landing = {
SoundId = “rbxasset://sounds/action_jump_land.mp3”,
},
Running = {
SoundId = “rbxasset://sounds/bfsl-minifigfoots1.mp3”,
Looped = true,
Pitch = 1.85,
},
Splash = {
SoundId = “rbxasset://sounds/impact_water.mp3”,
},
Swimming = {
SoundId = “rbxasset://sounds/action_swim.mp3”,
Looped = true,
Pitch = 1.6,
},
}
– wait for the first of the passed signals to fire
local function waitForFirst(…)
local shunt = Instance.new(“BindableEvent”)
local slots = {…}
local function fire(...)
for i = 1, #slots do
slots[i]:Disconnect()
end
return shunt:Fire(...)
end
for i = 1, #slots do
slots[i] = slots[i]:Connect(fire)
end
return shunt.Event:Wait()
end
– map a value from one range to another
local function map(x, inMin, inMax, outMin, outMax)
return (x - inMin)*(outMax - outMin)/(inMax - inMin) + outMin
end
local function playSound(sound)
sound.TimePosition = 0
sound.Playing = true
end
local function shallowCopy(t)
local out = {}
for k, v in pairs(t) do
out[k] = v
end
return out
end
local function initializeSoundSystem(player, humanoid, rootPart)
local sounds = {}
-- initialize sounds
for name, props in pairs(SOUND_DATA) do
local sound = Instance.new("Sound")
sound.Name = name
-- set default values
sound.Archivable = false
sound.EmitterSize = 5
sound.MaxDistance = 150
sound.Volume = 0.65
for propName, propValue in pairs(props) do
sound[propName] = propValue
end
sound.Parent = rootPart
sounds[name] = sound
end
local playingLoopedSounds = {}
local function stopPlayingLoopedSounds(except)
for sound in pairs(shallowCopy(playingLoopedSounds)) do
if sound ~= except then
sound.Playing = false
playingLoopedSounds[sound] = nil
end
end
end
-- state transition callbacks
local stateTransitions = {
[Enum.HumanoidStateType.FallingDown] = function()
stopPlayingLoopedSounds()
end,
[Enum.HumanoidStateType.GettingUp] = function()
stopPlayingLoopedSounds()
playSound(sounds.GettingUp)
end,
[Enum.HumanoidStateType.Jumping] = function()
stopPlayingLoopedSounds()
playSound(sounds.Jumping)
end,
[Enum.HumanoidStateType.Swimming] = function()
local verticalSpeed = math.abs(rootPart.Velocity.Y)
if verticalSpeed > 0.1 then
sounds.Splash.Volume = math.clamp(map(verticalSpeed, 100, 350, 0.28, 1), 0, 1)
playSound(sounds.Splash)
end
stopPlayingLoopedSounds(sounds.Swimming)
sounds.Swimming.Playing = true
playingLoopedSounds[sounds.Swimming] = true
end,
[Enum.HumanoidStateType.Freefall] = function()
sounds.FreeFalling.Volume = 0
stopPlayingLoopedSounds(sounds.FreeFalling)
playingLoopedSounds[sounds.FreeFalling] = true
end,
[Enum.HumanoidStateType.Landed] = function()
stopPlayingLoopedSounds()
local verticalSpeed = math.abs(rootPart.Velocity.Y)
if verticalSpeed > 75 then
sounds.Landing.Volume = math.clamp(map(verticalSpeed, 50, 100, 0, 1), 0, 1)
playSound(sounds.Landing)
end
end,
[Enum.HumanoidStateType.Running] = function()
stopPlayingLoopedSounds(sounds.Running)
sounds.Running.Playing = true
playingLoopedSounds[sounds.Running] = true
end,
[Enum.HumanoidStateType.Climbing] = function()
local sound = sounds.Climbing
if math.abs(rootPart.Velocity.Y) > 0.1 then
sound.Playing = true
stopPlayingLoopedSounds(sound)
else
stopPlayingLoopedSounds()
end
playingLoopedSounds[sound] = true
end,
[Enum.HumanoidStateType.Seated] = function()
stopPlayingLoopedSounds()
end,
[Enum.HumanoidStateType.Dead] = function()
stopPlayingLoopedSounds()
playSound(sounds.Died)
end,
}
-- updaters for looped sounds
local loopedSoundUpdaters = {
[sounds.Climbing] = function(dt, sound, vel)
sound.Playing = vel.Magnitude > 0.1
end,
[sounds.FreeFalling] = function(dt, sound, vel)
if vel.Magnitude > 75 then
sound.Volume = math.clamp(sound.Volume + 0.9*dt, 0, 1)
else
sound.Volume = 0
end
end,
[sounds.Running] = function(dt, sound, vel)
sound.Playing = vel.Magnitude > 0.5 and humanoid.MoveDirection.Magnitude > 0.5
end,
}
-- state substitutions to avoid duplicating entries in the state table
local stateRemap = {
[Enum.HumanoidStateType.RunningNoPhysics] = Enum.HumanoidStateType.Running,
}
local activeState = stateRemap[humanoid:GetState()] or humanoid:GetState()
local stateChangedConn = humanoid.StateChanged:Connect(function(_, state)
state = stateRemap[state] or state
if state ~= activeState then
local transitionFunc = stateTransitions[state]
if transitionFunc then
transitionFunc()
end
activeState = state
end
end)
local steppedConn = RunService.Stepped:Connect(function(_, worldDt)
-- update looped sounds on stepped
for sound in pairs(playingLoopedSounds) do
local updater = loopedSoundUpdaters[sound]
if updater then
updater(worldDt, sound, rootPart.Velocity)
end
end
end)
local humanoidAncestryChangedConn
local rootPartAncestryChangedConn
local characterAddedConn
local function terminate()
stateChangedConn:Disconnect()
steppedConn:Disconnect()
humanoidAncestryChangedConn:Disconnect()
rootPartAncestryChangedConn:Disconnect()
characterAddedConn:Disconnect()
end
humanoidAncestryChangedConn = humanoid.AncestryChanged:Connect(function(_, parent)
if not parent then
terminate()
end
end)
rootPartAncestryChangedConn = rootPart.AncestryChanged:Connect(function(_, parent)
if not parent then
terminate()
end
end)
characterAddedConn = player.CharacterAdded:Connect(terminate)
end
local function playerAdded(player)
local function characterAdded(character)
– Avoiding memory leaks in the face of Character/Humanoid/RootPart lifetime has a few complications:
– * character deparenting is a Remove instead of a Destroy, so signals are not cleaned up automatically.
– ** must use a waitForFirst on everything and listen for hierarchy changes.
– * the character might not be in the dm by the time CharacterAdded fires
– ** constantly check consistency with player.Character and abort if CharacterAdded is fired again
– * Humanoid may not exist immediately, and by the time it’s inserted the character might be deparented.
– * RootPart probably won’t exist immediately.
– ** by the time RootPart is inserted and Humanoid.RootPart is set, the character or the humanoid might be deparented.
if not character.Parent then
waitForFirst(character.AncestryChanged, player.CharacterAdded)
end
if player.Character ~= character or not character.Parent then
return
end
local humanoid = character:FindFirstChildOfClass("Humanoid")
while character:IsDescendantOf(game) and not humanoid do
waitForFirst(character.ChildAdded, character.AncestryChanged, player.CharacterAdded)
humanoid = character:FindFirstChildOfClass("Humanoid")
end
if player.Character ~= character or not character:IsDescendantOf(game) then
return
end
-- must rely on HumanoidRootPart naming because Humanoid.RootPart does not fire changed signals
local rootPart = character:FindFirstChild("HumanoidRootPart")
while character:IsDescendantOf(game) and not rootPart do
waitForFirst(character.ChildAdded, character.AncestryChanged, humanoid.AncestryChanged, player.CharacterAdded)
rootPart = character:FindFirstChild("HumanoidRootPart")
end
if rootPart and humanoid:IsDescendantOf(game) and character:IsDescendantOf(game) and player.Character == character then
initializeSoundSystem(player, humanoid, rootPart)
end
end
if player.Character then
characterAdded(player.Character)
end
player.CharacterAdded:Connect(characterAdded)
end
Players.PlayerAdded:Connect(playerAdded)
for _, player in ipairs(Players:GetPlayers()) do
playerAdded(player)
end
