Function only work once

[Egegold0 (Ege)]

how can i make a function only fire once like this script

i wrote this script but i want the value of the ‘‘GemsCollected’’ to go up only once when touched can anyone help?

Emerald.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then
		
		Emerald.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1
		
	end
end)

[Egegold0 (Ege)]

why did you delete it and also here is my full code:

local Emerald = script.Parent.GemModel_1.Emerald
local Amber = script.Parent.GemModel_2.Amber
local Diamond = script.Parent.GemModel_3.Diamond
local Ruby = script.Parent.GemModel_4.Ruby
local Sapphire = script.Parent.GemModel_5.Sapphire

local GameStarted = script.Parent.GameStarted
local GemsCollected = script.Parent.GemsCollected

Emerald.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then
		
		Emerald.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1
		
	end
end)

Amber.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then

		Amber.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1

	end
end)

Diamond.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then

		Diamond.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1

	end
end)

Ruby.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then

		Ruby.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1

	end
end)

Sapphire.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then

		Sapphire.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1

	end
end)

if GemsCollected.Value == 5 and GameStarted.Value == true then
	
	GemsCollected.Value = 0
	GameStarted.Value = false
	
end

[OhioBaconDead (Hany)]

local hasBeenTouched = false

Emerald.Touched:Connect(function(hit)
    if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true and not hasBeenTouched then
        -- put your full code here
        hasBeenTouched = true
    end
end)

-- i don't know this will work or not

[KutayX7 (FutureBloxDev)]

@Egegold0

Emerald.Touched:Connect(function(hit)

Emerald.Touched:Once(function(hit)

RBXScriptSignal | Documentation - Roblox Creator Hub

[foodeggs7 (SubToParcIeDev_onyt)]

Disable can touch on the part afterwards

[scavengingbot]

just use RBXScriptSignal:Once() which connects a listener to the event and then disconnects it automatically after it is fired.

now if you don’t want to disconnect it and maybe have like a cooldown and then the player should be able to reclaim a gem you’d add a debounce:

local debounce = false
Emerald.Touched:Connect(function(hit)
 if debounce then return end
 debounce = true
--prev code

 task.wait(YOUR COOLDOWN)
 debounce = false
end)

[Marusenai]

local connection = nil

connection = Emerald.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then
		
		Emerald.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1
		connection:Disconnect
	end
end)

[scavengingbot]

that’s once() with extra steps.

[ragepasvasy (StarGame)]

If you want to make it impossible to touch the part do this :

Emerald.Touched:Connect(function(hit)
	if hit.Parent:FindFirstChild('Humanoid') and GameStarted.Value == true then
		
		Emerald.Transparency = 1
		GemsCollected.Value = GemsCollected.Value + 1
		Emerald.CanCollide = false
		Emerald.CanTouch = false

	end
end)

By doing this, you can’t touch it anymore, not even collide with it, and the value will be increased by only 1.

[Marusenai]

I find it funny how easy this post is, so much so that we all just gathered here to give like 5 unique solutions to this problem maybe he should‘ve searched the forum a little harder…

[Dimascpraut]

I got this thing before, instead of

@Egegold0

if hit.Parent:FindFirstChild('Humanoid')

Use

if hit:FindFirstAncestorWhichIsA("Model"):FindFirstChild("Humanoid")

means if it finds a model in it’s parents and a humaoid in it, then execute a function because hit can also be an accessory so it will but out with an error.

[savio14562 (savio14563)]

Once wont work properly. If it touches a part, it will disconnect even if that part isnt a character.

[irlkaleI (Ninja)]

GetTouchingParts exists
Also you can use an if statement
Disable canTouch
Making the script Enabled = false

Also pretty nieshe you can use a list of players that has collected it to allow the player to collect it once.

[Egegold0 (Ege)]

Thanks this worked, and thanks to everyone who replied!