Code Review: ShiftToRun LocalScript

[Nachbarkian (N00bDevNach)]

Hi,
I made a LocalScript that allows the player to sprint by holding the Shift key and walk again when releasing it.
It’s a simple functionality, but I’d like to know how I can improve my code.
Are there any more efficient approaches, cleaner structures, or best practices I should consider?
Thanks in advance for your feedback!

My code:

--------------------------------------------
-- //: Variables
local ts = game:GetService("TweenService")
local tweenDuration = 1

local plr = game:GetService("Players").LocalPlayer
local char = plr.Character or plr.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid")
local animator = hum:FindFirstChild("Animator")

local uis = game:GetService("UserInputService")
local runKey = Enum.KeyCode.LeftShift
local runningSpeed = 20
local walkSpeed = 16

local currentCam = workspace.CurrentCamera
local zoomOutValue = 90
local normalZoomValue = 70

local runAnim = game:GetService("ReplicatedStorage").Assets.Animations.RunAnimation
local track = animator:LoadAnimation(runAnim)

local holdingW = false -- Tracks if the player is holding the 'W' key; ensure running only starts when moving forward.
--------------------------------------------




--------------------------------------------
-- //: Functions
local function zoomOut()
	ts:Create(currentCam, TweenInfo.new(tweenDuration), {FieldOfView = zoomOutValue}):Play()
end

local function zoomNormal()
	ts:Create(currentCam, TweenInfo.new(tweenDuration), {FieldOfView = normalZoomValue}):Play()
end


local function startRunning()
	zoomOut()
	hum.WalkSpeed = runningSpeed
	track:Play()
end

local function startWalking()
	zoomNormal()
	hum.WalkSpeed = walkSpeed
	track:Stop()
end


-- When you hold the W key:
uis.InputBegan:Connect(function(input, gameProcessed)
	if gameProcessed then return end
	if input.KeyCode ~= Enum.KeyCode.W then return end
	holdingW = true
end)

-- When you release the W key:
uis.InputEnded:Connect(function(input, gameProcessed)
	if gameProcessed then return end
	if input.KeyCode ~= Enum.KeyCode.W then return end
	holdingW = false
	
	startWalking()
end)
--------------------------------------------




--------------------------------------------
-- //: Main Function

-- If you hold shift, you run:
uis.InputBegan:Connect(function(input, gameProcessed)
	
	if gameProcessed then return end
	if input.KeyCode ~= runKey then return end
	if holdingW == false then return end
	
	startRunning()
	
end)

-- If you release shift, you walk:
uis.InputEnded:Connect(function(input, gameProcessed)

	if gameProcessed then return end
	if input.KeyCode ~= runKey then return end
	
	startWalking()
	
end)
--------------------------------------------

Video:

[robot300047 (hello)]

The only thing I would suggest for you to change is the check for if the w key is held down. When Checking if the player is holding shift you can simply add an if statement that says if usi:IskeyDown(Enum.KeyCode.W) then

[Nachbarkian (N00bDevNach)]

Bro thank you so much,

I didn’t know about the :IsKeyDown() method.
Bro this method is sooo nice.

Now I don’t have to use the variable “holdingW”

I appriciate it extremly much man.

Also Thanks for reading my code.

[JHGameMakerAcount1 (Raymarched)]

To make this work on mobile you can check the humanoids Move Direction