Missing ipairs arguement help

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#1

I wish to place the forcefields in the correct archways and I used a simple print statement to check that the forcefields and archeways will be ordered properly but they aren’t. I’m pretty sure I need to use another arguement but I’m not sure what that is. Here is what’s printed.

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---- Place the forcefields in the correct positions ----

local replicatedStorageService = game:GetService("ReplicatedStorage")
local forcefieldFolder = replicatedStorageService:WaitForChild("Forcefields")
local archwaysFolder = game.Workspace.GameAssets.Archways

for i, v in ipairs(forcefieldFolder:GetChildren()) do
	if v:IsA("Part") then
		print(i, v.Name)
	end
end

for i, v in ipairs(archwaysFolder:GetChildren()) do
	if v:IsA("MeshPart") then
		print (i, v.Name)
	end
end
#2

Maybe this could help:

#3

Yeah I already read that one but I thought ipairs was supposed to order the parts but doesn’t seem to. If I can’t make option 1 work then I’ll go with option 2.

#4

ipairs goes over a list, in order, like pairs does. But GetChildren doesn’t return the list in order.

#5

Ipairs iterates through an array in index order.

For example:

local array = {"b","c","a"}

for i,v in ipairs(array) do
   print("Index:", i, "Value:", v)
end

--[[ the output is in order
Index: 1 Value: b
Index: 2 Value: c
Index: 3 Value: a
]]--

You’re using :GetChildren() to get the instances, which doesn’t sort the returned array in alphanumeric order.

If you wanted to sort them, you’d have to run your own sort operation.

#6

Yeah that’s obviously true but I’m not really sure how to do that. “part1” matched with “meshpart1” etc so when I clone the parts from the replicated storage I know that the parts will be in the correct place. This is because the forcefield1-5 cost different amounts to turn off and I want them to be placed from cheapest to most expensive.