CollectionService, GetInstanceAddedSignal doesn't respond

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#1

I tried to make kill brick in Roblox Studio for my game, using “GetInstanceAddedSignal”, but it didn’t work and I found it really odd, I thought I made some typo, but clearly not, I asked other devs about it, they couldn’t find any issue here too, so I suggest it may be a studio bug, I tried to debug but it completely skips it, I tried to do it in clear workspace, reinstalled studio and turning off plugins.
But nothing works, I debugged it, works but doesn’t send signal so it skips function on video.

Maybe I’m wrong, but I tried using official docs example with deadly brick, it doesn’t work too: CollectionService | Documentation - Roblox Creator Hub

Also checked recent posts on Dev Forum couldn’t find something relatable, so now reporting it.

Here is my code:

local ServerScriptService = game:GetService("ServerScriptService")
local ServerStorage = game:GetService("ServerStorage")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local CollectionService = game:GetService("CollectionService")
local RunService = game:GetService("RunService")

--Modules:
local Modules = ServerStorage.Modules

--Functions

-- Connect to Laser tag additions
CollectionService:GetInstanceAddedSignal("Laser"):Connect(function(part)
	local function onTouched(otherPart)
		local character = otherPart.Parent
		local humanoid = character:FindFirstChild("Humanoid")
		if humanoid then
			humanoid:TakeDamage(10)
		end
	end

	part.Touched:Connect(onTouched)
end)

Expected behavior

I expected my humanoid to get damage or print any result from function, but it skips it when I debug it.

Edit: Forgot to add, that when I ran Roblox Official Documentation example, it takes longer for studio and overall using GetInstanceAddedSignal makes studio longer to load.

#2

It looks like you’ve already set the “Laser” tag on the parts while in edit mode. GetInstanceAddedSignal would fire when “Laser” is added, during runtime, to a part that doesn’t already have the tag.

Instead, try using GetTagged to get a table of all parts that already have the tag, for example:

for _, part in CollectionService:GetTagged("Laser") do
    if part:IsA("BasePart") then
        part.Touched:Connect(function(hit)
            print("touched")
        end)
    end
end
3 Likes
#3

Yeah I guess my bad, I never worked with this, I’ll use different method.