W key sprinting system [script review]

Help and Feedback Code Review
#1

Hello, I basically made a script that by holding w key makes the player sprint, but there are some bugs in it, and I have been struggling on how to fix them, for example, one bug is when you press the escape key to pause the game, even when you press the key to open chat while player is running, the animation and sound still playing, and and then glitches out, and don’t stop until player dies, can someone please check the script and fix it?

Here is the script:

local UIS = game:GetService('UserInputService')
local Player = game.Players.LocalPlayer
local Character = Player.Character

local maxSpeed = 32 -- The maximum speed you want to reach
local maxJump = 35 -- The maximum speed you want to reach
local acceleration = 0.03 -- The rate at which the speed increases

local currentSpeed = 16
local currentJump = 20
local currentAnimSpeed = 0.4
local currentAnimWeight = 0.5
local isAccelerating = false
local isRunning = false

local runSound = game.SoundService.Running
runSound.PlaybackSpeed = currentSpeed / maxSpeed -- Adjust playback speed initially

local function increaseSpeed()
	if currentSpeed < maxSpeed then
		currentSpeed = currentSpeed + acceleration
		currentAnimSpeed = currentAnimSpeed + (acceleration / maxSpeed)
		currentAnimWeight = currentAnimWeight + (acceleration / maxSpeed)
	else
		currentSpeed = maxSpeed
		currentAnimSpeed = 1.1
		currentAnimWeight = 1.2
		isAccelerating = false
	end

	Character.Humanoid.WalkSpeed = currentSpeed
	Character.Humanoid.JumpPower = currentSpeed * 1.18 -- Increase jump power with speed
	PlayAnim:AdjustSpeed(currentAnimSpeed)
	PlayAnim:AdjustWeight(currentAnimWeight)
	runSound.PlaybackSpeed = currentSpeed / maxSpeed -- Adjust playback speed based on current speed
end

local function increaseJump()
	if currentJump < maxJump then
		currentJump = currentJump + acceleration
	else
		currentJump = maxJump
		currentAnimSpeed = 1.1
		currentAnimWeight = 1.2
		isAccelerating = false
	end

	Character.Humanoid.JumpPower = currentJump
end

function ToggleAnimationAndSound(shouldPlay)
	if shouldPlay then
		if not PlayAnim.IsPlaying then
			PlayAnim:Play()
		end
		if not runSound.IsPlaying then
			runSound:Play()
		end
	else
		PlayAnim:Stop()
		runSound:Stop()
	end
end

local leftControlDown = false

UIS.InputBegan:Connect(function(Key,IsTyping)
	if IsTyping then return end
	if Key.KeyCode == Enum.KeyCode.W then
		isRunning = true
		isAccelerating = true
		local Anim = script.SprintAnim
		PlayAnim = Character.Humanoid:LoadAnimation(Anim)
		ToggleAnimationAndSound(true)
		print('Running')
	elseif IsTyping.KeyCode == Enum.KeyCode.Escape or Enum.KeyCode.Slash then
		isRunning = false
	end
end)

UIS.InputEnded:Connect(function(Key,IsTyping)
	if IsTyping then return end
	if Key.KeyCode == Enum.KeyCode.W then
		Character.Humanoid.WalkSpeed = 16
		Character.Humanoid.JumpPower = 35
		ToggleAnimationAndSound(false)
		currentSpeed = 13
		currentAnimSpeed = 0.4
		currentAnimWeight = 0.8
		isAccelerating = false
		isRunning = false
--		print('Running stopped')
	elseif Key.KeyCode == Enum.KeyCode.Escape then
		isRunning = false
	end
end)

function ToggleRunningIfAirborne()
	if Character.Humanoid.FloorMaterial == Enum.Material.Air or leftControlDown then
		ToggleAnimationAndSound(false)
	elseif isRunning then
		ToggleAnimationAndSound(true)
	end
end

game:GetService('RunService').Heartbeat:Connect(function()
	ToggleRunningIfAirborne()
	if isAccelerating then
		increaseSpeed()
	end
end)
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#2

for the person who has entered this forum, sorry, I already fixed this script, also, you can take the script, because that is a very outdated version of the script.

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