Sprint Script Modifications

[MR_M3WTWO (Mew)]

I have a sprint script and it has some issues which I think could be fixed if someone could help me. I have a lot of trouble with the sprint animation playing when the character is in the air which you can see I tried to fix but I’m still having trouble. I would like someone to modify the script to only play the sprinting animation if the character is on the ground. If you know how to do this please help or if you can figure out another solution. Thank you!

Here is the script:

-- Services
local userInputService = game:GetService("UserInputService")
local players = game:GetService("Players")
-- Variables
local player = players.LocalPlayer
local char = player.Character or player.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid")
local animator = hum:WaitForChild("Animator")

local animation = Instance.new("Animation")
animation.AnimationId = "rbxassetid://18567622681"
local track = animator:LoadAnimation(animation)
track.Priority = Enum.AnimationPriority.Movement

local RUN_KEYCODE = Enum.KeyCode.LeftControl
local RUN_SPEED = 40
local WALK_SPEED = 16
-- Togglables
local isSprinting = false -- if player has sprinting toggled
local isMoving = false -- if player is moving
local isInAir = false -- if player is in the air (because of jumping)

local function updateAnimation() -- Updates it based on if the player is moving or if they have sprinting on/off
	if isSprinting and isMoving then
		hum.WalkSpeed = RUN_SPEED
		if not track.IsPlaying then -- makes sure it isnt already playing
			track:Play()
		end
	else
		hum.WalkSpeed = WALK_SPEED
		track:Stop()
	end
end

local function inputBegan(input, processed)
	if processed then return end

	if input.KeyCode == RUN_KEYCODE then
		isSprinting = not isSprinting -- toggles on and off
		updateAnimation()
	end
end

local function moveDirectionChanged()
	isMoving = hum.MoveDirection.Magnitude > 0 -- sets var to true/false depending if they are moving or not
	if not isInAir then
		updateAnimation()
	end
end

userInputService.InputBegan:Connect(inputBegan) -- player presses key (we want them to press shift)

hum:GetPropertyChangedSignal("MoveDirection"):Connect(moveDirectionChanged) -- player moves

-- Additional: Stop sprinting if jumping | Redone
userInputService.InputBegan:Connect(function(input, gameEvent)
	if not gameEvent then
		if input.KeyCode == Enum.KeyCode.Space then
			track:Stop()
			isInAir = true
		end
	end
end)

userInputService.InputEnded:Connect(function(input, gameEvent)
	if not gameEvent then
		if input.KeyCode == Enum.KeyCode.Space then
			task.wait(0.4)
			isInAir = false
		end
	end
end)

[J_Angry]

Try using Humanoid.FloorMaterial to detect whether the player is in the air or not.

Humanoid:GetPropertyChangedSignal("FloorMaterial"):Connect(function()
	if Humanoid.FloorMaterial == Enum.Material.Air then
		isInAir = true
		
		track:Stop()
	else
		isInAir = false
		
		if isSprinting and isMoving and not track.IsPlaying then
			track:Play()
		end
	end
end)

[anon98422118]

FloorMaterial is not a valid property name. - Client - LocalScript:4

[MR_M3WTWO (Mew)]

I cant find that property name, could you put it in the script so i can see what you mean?

[J_Angry]

Sure thing! Tell me if you encounter any issues or errors, because I’ve tested and confirmed that FloorMaterial is a proper property of any Humanoid instance.

local userInputService = game:GetService("UserInputService")
local players = game:GetService("Players")

local player = players.LocalPlayer
local char = player.Character or player.CharacterAdded:Wait()
local hum = char:WaitForChild("Humanoid")
local animator = hum:WaitForChild("Animator")

local animation = Instance.new("Animation")
animation.AnimationId = "rbxassetid://18567622681"
local track = animator:LoadAnimation(animation)
track.Priority = Enum.AnimationPriority.Movement

local RUN_KEYCODE = Enum.KeyCode.LeftControl
local RUN_SPEED = 40
local WALK_SPEED = 16

local isSprinting = false
local isMoving = false
local isInAir = false

local function floorMaterialChanged()
	if hum.FloorMaterial == Enum.Material.Air then
		isInAir = true

		track:Stop()
	else
		isInAir = false

		if isSprinting and isMoving and not track.IsPlaying then
			track:Play()
		end
	end
end

local function updateAnimation()
	if isSprinting and isMoving then
		hum.WalkSpeed = RUN_SPEED
		if not track.IsPlaying then
			track:Play()
		end
	else
		hum.WalkSpeed = WALK_SPEED
		track:Stop()
	end
end

local function inputBegan(input, processed)
	if processed then return end

	if input.KeyCode == RUN_KEYCODE then
		isSprinting = not isSprinting
		updateAnimation()
	end
end

local function moveDirectionChanged()
	isMoving = hum.MoveDirection.Magnitude > 0
	if not isInAir then
		updateAnimation()
	end
end

userInputService.InputBegan:Connect(inputBegan)

hum:GetPropertyChangedSignal("MoveDirection"):Connect(moveDirectionChanged)

hum:GetPropertyChangedSignal("FloorMaterial"):Connect(floorMaterialChanged)

(An explanation on why you can’t find that property name, it’s because hum isn’t known by the script to be a Humanoid, so it wouldn’t show up, as FloorMaterial is exclusive to Humanoids (I think).)

[MR_M3WTWO (Mew)]

Wow, it works beautifully. Thanks for helping.