Sound object deleted for some odd reason

Help and Feedback Scripting Support
#1

What’s supposed to happen
Code runs once, then the next “cycle” occurs where the same exact behaviour is supposed to be replicated again.

What actually happens
Decel, a sound object which is integral to the script, gets deleted for no apparent reason, which causes the script to be unable to find the object and spit out " Decel is not a valid member of Part “Workspace.Train1”.

The Code

local function trainCycle() local train = game.Workspace.Train1 local startPart = game.Workspace.start_train local stationPart = game.Workspace.train_station local stopPart = game.Workspace.train_stop local speed = 40

local SoundService = game:GetService("SoundService")
local decelerationAudioId = "rbxassetid://14252924361"
local accelerationAudioId = "rbxassetid://14253510273"
local loopedAudioId = "rbxassetid://14253124958"
local dooropen = "rbxassetid://14261571781"
local doorclose= "rbxassetid://14261585755"

local function moveTrainSmoothly(startPos, endPos, duration)
	local initialPosition = train.Position
	local t = 0

	game:GetService("TweenService"):Create(train, TweenInfo.new(duration), {
		Position = endPos
	}):Play()

	while t < duration do
		t = t + wait()
		train.Position = initialPosition:Lerp(endPos, t / duration)
	end

	train.Position = endPos
end



local function accelerateTrainSmoothly(startPos, endPos, duration)
	local initialPosition = train.Position
	local initialVelocity = train.AssemblyLinearVelocity

	-- Calculate the desired velocity to reach the end position in the given duration
	local desiredVelocity = (endPos - startPos).unit * (endPos - startPos).magnitude / duration

	game:GetService("TweenService"):Create(train, TweenInfo.new(duration), {
		AssemblyLinearVelocity = desiredVelocity
	}):Play()

	local t = 0
	while t < duration do
		t = t + wait()
		train.AssemblyLinearVelocity = initialVelocity:Lerp(desiredVelocity, t / duration)
		train.Position = initialPosition + train.AssemblyLinearVelocity * t
	end

	train.AssemblyLinearVelocity = desiredVelocity
	train.Position = endPos
end

-- Function to play audio starting at a specific time and ending at a specific time
local function playAudio(audioId, startTime, endTime)
	local sound = Instance.new("Sound")
	sound.Parent = train
	sound.SoundId = audioId
	sound.TimePosition = startTime
	sound:Play()

	while wait() do
		if sound.TimePosition >= endTime then
			sound:Stop()
			break
		end
	end
end

-- Play the first audio immediately
local firstAudio = game.Workspace.Train1.Decel
firstAudio.Parent = train
firstAudio.SoundId = decelerationAudioId
firstAudio:Play()

-- Start the looped audio in a separate thread
local loopedAudio = game.Workspace.Train1.IDLE
loopedAudio.Parent = train
loopedAudio.SoundId = loopedAudioId
loopedAudio.Looped = true
loopedAudio:Play()


	wait(20) -- Wait for 20 seconds before starting the cycle

	-- Decelerate from start to station
	local decelerationDuration = 10 -- Adjust the duration to control deceleration
	moveTrainSmoothly(startPart.Position, stationPart.Position, decelerationDuration)

	-- Play the deceleration audio from 0:16 to 0:37


	-- Stop the train at the station
	train.AssemblyLinearVelocity = Vector3.new()
	
	wait(1)
	
	local firstAudio = game.Workspace.Train1.OpenDoors
	firstAudio.Parent = train
	firstAudio.SoundId = dooropen
	firstAudio:Play()
	wait (35)
	local firstAudio = game.Workspace.Train1.CloseDoors
	firstAudio.Parent = train
	firstAudio.SoundId = doorclose
	firstAudio:Play()

	-- Wait for 40 seconds
	


	wait(8)

	game.ReplicatedStorage.itleave:FireServer()


	-- Accelerate from station to stop
	local accelerationDuration = 20 -- Adjust the duration to control acceleration

	accelerateTrainSmoothly(stationPart.Position, stopPart.Position, accelerationDuration)



	-- Stop the looped audio and wait for train to accelerate again
	loopedAudio:Stop()
	for _, sound in ipairs(train:GetChildren()) do
		if sound:IsA("Sound") then
			sound:Stop()
		end
	end



	-- Play the acceleration audio from 0:15 to the end
	-- Stop at the destination
	train.AssemblyLinearVelocity = Vector3.new()
	
	train.Position = Vector3.new(-360.501, 5.335, 7.726)
	
	
	
end

while true do
wait(100)
trainCycle()
wait(234) – Adjust the delay between cycles (in seconds) as needed
local firstAudio = game.Workspace.Train1.Decel
firstAudio.Parent = game.Workspace.Train1
firstAudio.SoundId = 14252924361
firstAudio:Play()
end`

Location
Script is located in game.StarterPlayer.StarterPlayerScripts
Sound object is located in game.workspace.Train1

1 Like
#2

Try using the search bar over workspace to see if you parented the sound somewhere else. If it was deleted it may be caused by some other script? Otherwise idk