Problem with Part Transparency script

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#1

The problem is that I’m trying to make CanCollide true on a part when it’s transparency reaches 0 but for some reason the script is returning a weird number value that I never intended to reach and because of that I can’t make it turn CanCollide on, here’s the script that I’m using:

Script 
local part = script.Parent
local TouchedCooldown = false

part.Touched:Connect(function(hit)
	local Character = hit.Parent
	local Humanoid = Character:FindFirstChildOfClass("Humanoid")
	
	if Humanoid and not TouchedCooldown then
		TouchedCooldown = true
		
		for i = 0,1,0.1 do
			part.Transparency = i
			wait()
		end
		
		print(part.Transparency)
		
		if part.Transparency == 1 then
			part.CanCollide = false
			print("can collide is false")
		end
		print("moving on")
		
		wait(0.5)
		
		for i = 1,0,-0.1 do
			part.Transparency = i
			wait()
		end
		
		print(part.Transparency)
		
		if part.Transparency == 0 then
			part.CanCollide = true
			print("cancollide is on")
		end
		
		print("yes")
		
		wait(0.5)
		TouchedCooldown = false
	end
end)

Because of the debugging that I did I was able to see the reason as to why it’s not turning CanCollide on and it’s because of the weird number value which I never intended to reach like I said above, here’s a picture of my output so you can see what prints in the script, what doesn’t and what’s happening:

NumberIssue

Now as you can see when I printed the part.Transparency number value after it’s 0 for some reason it’s not printing 0 instead it prints this weird HUGE number value that I never intended to reach and the Part’s Transparency is 0 after the numeric loop is done and not the weird number value so what’s happening here and how do I fix this?

Is this the number floating point error issue within Roblox Lua or something?

#2

It is an issue with Lua, and has been reported several times. For now just do division instead:

You also don’t need to check if the transparency is 1 or if it’s 0. Just run the code at the end of the loop.

local part = script.Parent
local TouchedCooldown = false

part.Touched:Connect(function(hit)
	local Character = hit.Parent
	local Humanoid = Character:FindFirstChildOfClass("Humanoid")
	
	if Humanoid and not TouchedCooldown then
		TouchedCooldown = true
		
		for i = 0, 10 do
			part.Transparency = i/10
			wait()
		end
		
		print(part.Transparency)
		part.CanCollide = false
		
		print("can collide is false, moving on")
		
		wait(0.5)
		
		for i = 10, 0, -1 do
			part.Transparency = i/10
			wait()
		end
		
		print(part.Transparency)
		part.CanCollide = true
		print("cancollide is on, yes")
		
		wait(0.5)
		TouchedCooldown = false
	end
end)
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