Tween stops working within a constantly firing event

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#1

I’ve created an indicator Gui that informs the player whenever an item gets added to their inventory. This is done through a bindable event that fires every time when an item gets added, which sometimes can be multiple times in a second.

I used tweens to tween each indicator Gui onto the screen and out of the screen. However, if the bindable event fires when an indictor is tweening in, that tween then breaks, resulting in:

image

This is the code responsible for the event and the tweening:

local event = script.Parent:WaitForChild("Indicate")
local IDs = require(game.ReplicatedStorage:WaitForChild("Items"):WaitForChild("!IDs"))
local rarity = IDs["rarityColours"]
local temp = script.Parent:WaitForChild("Templeate")
local frame = script.Parent:WaitForChild("Frame")
local queue = {}
local T = game:GetService("TweenService")
local TI = TweenInfo.new(0.5,Enum.EasingStyle.Cubic,Enum.EasingDirection.Out)

event.Event:Connect(function(StringID)
	local indication = frame:FindFirstChild(StringID)
	if table.find(queue,StringID) and indication and indication.Position.Y.Scale > 0.1 then
		indication.Count.Value += 1
		indication.Text = IDs[StringID][1].Name.." x"..indication.Count.Value
	else
		local I = temp:Clone() -- Indication
		for i,indication in pairs(frame:GetChildren()) do
			T:Create(indication,TI,{Position = indication.Position - UDim2.new(0,0,temp.Size.Y.Scale,0)}):Play()
		end
		local posToMove = I.Position
		I.Position = posToMove - UDim2.new(I.Size.X.Scale,0,0,0)
		T:Create(I,TI,{Position = posToMove}):Play()
		I.Parent = frame
		I.Name = StringID
		table.insert(queue,1,StringID)
		I.Text = IDs[StringID][1].Name
		I.Visible = true
		wait(5)
		I.Name = "old"
		table.remove(queue,table.find(queue,StringID))
		if I.Position.Y.Scale < 0 then
			I:Destroy()
		else
			T:Create(I,TI,{BackgroundTransparency = 1, TextTransparency = 1, TextStrokeTransparency = 1}):Play()
			wait(0.5)
			I:Destroy()
		end
	end
end)
#2

Add a debounce which only allows the event to fire if the previous fired event has ended.

local hasEnded = true


--code before bindable
if hasEnded then
	hasEnded = false
	BindableEvent:Fire()
end
hasEnded = true
--code after bindable