Button to temporarily increase player speed. | Roblox Studio Community | Page 1

crystal horizon Mar 19, 2026, 7:14 PM

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Hello, I've been trying to work with buttons and figure out how they work, I'm a complete newcomer, so I'm trying something easy, which is simply to increase a players speed for a short amount of time by pressing a button. However, every attempt I do breaks something, or simply fails to work. I just haven't been able to figure out how to make the buttons affect the player. If anyone could give me assistance, I'd greatly appreciate it.

Local Script for ScreenGUI

-- ABILITY BUTTONS
    local Ability1 = script.Parent.ScreenGui.Ability1

-- Ability 1
    local Ability1 = script.Parent.ScreenGui.Ability1
        Ability2.MouseButton1Click:Connect(function()

        print('Lets pick up the pace!')
    end)```

**Player Local Script**

-- Shift to Run
local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local Speed1 = 30
local Speed2 = 15
humanoid.WalkSpeed = Speed1

-- Run Button
UserInputService.InputBegan:Connect(function(input, gameProcessedEvent)
if gameProcessedEvent then return end
if input.UserInputType == Enum.UserInputType.Keyboard and input.KeyCode == Enum.KeyCode.LeftShift then
humanoid.WalkSpeed = Speed2
end
end)

UserInputService.InputEnded:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.Keyboard and input.KeyCode == Enum.KeyCode.LeftShift then
        humanoid.WalkSpeed = Speed1
    end
end)


Most of my code here is borrowed from other sources, and I've been trying to tinker with it to learn how it works, but I've gotten stuck on this.

agile verge Mar 19, 2026, 7:30 PM

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crystal horizon Hello, I've been trying to work with buttons and figure out how they work, I'm a...

You just gotta increase the humanoid.WalkSpeed inside the function connected to your Ability2

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Ability2.MouseButton1Click:Connect(function()
  humanoid.WalkSpeed = Speed2
  print('Lets pick up the pace!')
end)

crystal horizon Mar 19, 2026, 7:38 PM

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Ah, i meant for the ability2 part to be named Ability 1

    local Ability1 = script.Parent.ScreenGui.Ability1
        Ability1.MouseButton1Click:Connect(function()
        humanoid.WalkSpeed = Speed3
        
        print('Lets pick up the pace!')
    end)```

In player, I made a specific player 3 speed
`local Speed3 = 60`

Because Speed1 and Speed2 are Running/Walking toggles via shift, so setting the speed to an already done speed wouldn't do much, haha

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So, i guess what I'm looking for here is a way to add speed to a player, for a short period, from a button

agile verge Mar 19, 2026, 7:39 PM

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use task.delay()

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task.delay(<AmountOfTime>, function()

end)

Is the syntax

crystal horizon Mar 19, 2026, 7:43 PM

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Understood, although, the solution to set a players speed you gave doesn't seem to of worked.

agile verge Mar 19, 2026, 7:43 PM

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crystal horizon Understood, although, the solution to set a players speed you gave doesn't seem ...

did the speed not apply after some time?

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Can you send me what you wrote?

crystal horizon Mar 19, 2026, 7:45 PM

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-- Shift to Run
    local player = game.Players.LocalPlayer
    local character = player.Character or player.CharacterAdded:Wait()
    local humanoid = character:WaitForChild("Humanoid")
    local Speed1 = 30
    local Speed2 = 15
    local Speed3 = 600
    humanoid.WalkSpeed = Speed1```

-- ABILITY BUTTONS
local Ability1 = script.Parent.ScreenGui.Ability1

-- Ability 1
local Ability1 = script.Parent.ScreenGui.Ability1
Ability1.MouseButton1Click:Connect(function()
humanoid.WalkSpeed = Speed3

    print('Lets pick up the pace!')
end)```

I set Speed3 to be absurd, but after clicking the button, it's done nothing.

soft valleyBOT Mar 19, 2026, 7:45 PM

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studio ** You are now Level 1! ** studio

agile verge Mar 19, 2026, 7:47 PM

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crystal horizon ``` -- Shift to Run local player = game.Players.LocalPlayer local charac...

Oh. I think your syntax is a little wrong.

Try this:


local Ability1 = script.Parent.ScreenGui.Ability1
Ability1.MouseButton1Click:Connect(function()
    humanoid.WalkSpeed = Speed3
        
    print('Lets pick up the pace!')
end)

crystal horizon Mar 19, 2026, 7:50 PM

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Alright, that didn't work either,but I think I found the culprit

I'm getting this error here from the debug log, no clue on what it means

agile verge Mar 19, 2026, 7:54 PM

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crystal horizon Alright, that didn't work either,but I think I found the culprit I'm getting th...

It means that you are trying to get an Instance which is not inside ScreenGui. My guess would be that this line is the problem: ```lua
local Ability1 = script.Parent.ScreenGui.Ability1

script.Parent probably is the ScreenGui right?
so you are trying to get the ScreenGui from the ScreenGui if that makes sense.
This should fix it:
```lua
local Ability1 = script.Parent.Ability1

crystal horizon Mar 19, 2026, 7:59 PM

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-- ABILITY BUTTONS
    local Ability1 = script.Parent.Ability1

-- Ability 1
    local Ability1 = script.Parent.Ability1
    Ability1.MouseButton1Click:Connect(function()
        humanoid.WalkSpeed = Speed3

        print('Lets pick up the pace!')
    end)

Fixed that issue, and the error is no longer popping up! Yet still, it's not working somehow?

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I apologize for all this hassle, and thank you for still helping

agile verge Mar 19, 2026, 8:00 PM

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crystal horizon ``` -- ABILITY BUTTONS local Ability1 = script.Parent.Ability1 -- Ability 1...

Is it printing "Lets pick up the pace!"?

agile verge Mar 19, 2026, 8:00 PM

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crystal horizon I apologize for all this hassle, and thank you for still helping

Don't worry

crystal horizon Mar 19, 2026, 8:01 PM

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Moving the print above the line does make it work, so it's entirely the image above, I assume because the variable exists in the player script, and not the button script?

agile verge Mar 19, 2026, 8:04 PM

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crystal horizon Moving the print above the line does make it work, so it's entirely the image ab...

Wait so these are two different scripts? That makes sense

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Yeah you'll have to reference the humanoid again in there just like Speed3

crystal horizon Mar 19, 2026, 8:04 PM

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Yeah, I tried to make that obvious with how i formatted, seperating the two and stating they're different, apologies!

agile verge Mar 19, 2026, 8:05 PM

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crystal horizon Yeah, I tried to make that obvious with how i formatted, seperating the two and ...

No problem. I didn't catch it

crystal horizon Mar 19, 2026, 8:05 PM

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So like this?
game.Players.LocalPlayer.humanoid.WalkSpeed = Speed3

agile verge Mar 19, 2026, 8:05 PM

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crystal horizon So like this? `game.Players.LocalPlayer.humanoid.WalkSpeed = Speed3`

Yeah be sure to create a Speed3 variable as well in your Button script

crystal horizon Mar 19, 2026, 8:07 PM

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Ah, finally got the speed working! Just threw my fella off the baseplate

agile verge Mar 19, 2026, 8:07 PM

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crystal horizon Ah, finally got the speed working! Just threw my fella off the baseplate

Lol

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If you run into problems implementing the task.delay let me know 👍

crystal horizon Mar 19, 2026, 8:08 PM

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Already working on it, again, thank you so much for your patience!

obsidian wren Mar 19, 2026, 9:34 PM

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you should switch to a module script

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from my understanding u press the gui and get a speed boost

crystal horizon Mar 19, 2026, 9:36 PM

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obsidian wren you should switch to a module script

Module script?

soft valleyBOT Mar 19, 2026, 9:36 PM

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studio ** You are now Level 2! ** studio

obsidian wren Mar 19, 2026, 9:37 PM

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yes

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it allows you to reuse blocks of code across all ur scripts

obsidian wren Mar 19, 2026, 9:40 PM

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crystal horizon Hello, I've been trying to work with buttons and figure out how they work, I'm a...

so in ur case u could add a local script to ur gui that's pretty much jst

local [SCRIPTNAME] = require(game.ReplicatedStorage.[SCRIPTNAME])
local sprintscript = [SCRIPTNAME].[FUNCTIONNAME]

script.parent.MouseButton1Click:Connect(function()
[FUNCTIONNAME} ()

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ofc replacing script name with ur scripts atual name

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and function name with the name of the function that does stuff

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-- Shift to Run
local player = game.Players.LocalPlayer
local character = player.Character or player.CharacterAdded:Wait()
local humanoid = character:WaitForChild("Humanoid")
local Speed1 = 30
local Speed2 = 15
humanoid.WalkSpeed = Speed1

-- Run Button
UserInputService.InputBegan:Connect(function(input, gameProcessedEvent)
if gameProcessedEvent then return end
if input.UserInputType == Enum.UserInputType.Keyboard and input.KeyCode == Enum.KeyCode.LeftShift then
humanoid.WalkSpeed = Speed2
end
end)

UserInputService.InputEnded:Connect(function(input)
    if input.UserInputType == Enum.UserInputType.Keyboard and input.KeyCode == Enum.KeyCode.LeftShift then
        humanoid.WalkSpeed = Speed1
    end
end)

so this bit

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would be the function

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(assuming you havent changed it)

crystal horizon Mar 19, 2026, 9:42 PM

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I have not just yet, but that seems like a charm, thank you very much for the tip!!

obsidian wren Mar 19, 2026, 9:42 PM

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ye

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u dont gotta switch it tbh

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but in the future

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modules are VERYYYYY useful

crystal horizon Mar 19, 2026, 9:42 PM

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Making code accessible and modular helps with future stuff

obsidian wren Mar 19, 2026, 9:42 PM

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ye also reduces how many remoteevents u use which is good for performance

#Button to temporarily increase player speed.