Find a part by its index

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#1

Im trying to make a camera system that counts up in the folder for all the cameras, but i dont want to randomly choose a camera, i want to count up.

For Example:
Camera_Hall 1st in folder
Camera_Door 2st in folder
Camera_Room 3st in folder

Then count up from 1st to 2st to 3st then back to 1st.

2 Likes
#2 
for i=1, 3 do 
      local FolderNumber=i -- this is your folder number
      -- do whatever
end

are you trying to achieve something like this?
this will get your Folder number from 1 to 3, in the correct order

#3 
for i = 1, #FolderDirectory:GetChildren() do --> Change FolderDirectory to where your cameras are stored.
      print(i) --> We can print i which is the number of items in your FolderDirectory.
      --> The print should return the amount of Instances inside the folder.
end
#4

no this is just counting not counting up instances in the folder

#5

are you trying to loop through the instances in the folder? or are you trying to get the instances in the folder in a numbered sequence like 1, 2, 3, 4…?

#6

yes im trying to loop trough the instances but not in a random order

#7

same thing just counts the instances

#8

thats what my script does.
you can name the instances in a numbered manner.

for example, name them 1, then 2, then 3 etc.

local FolderWithInstances= -- the folder which has the instances in numbered manner
for i=1, #FolderWithInstances:GetChildren() do 
      local FolderNumber=i -- this is your folder number
      local Object=FolderWithInstances:FindFirstChild(FolderNumber)
      -- this object is your instances in the numbered order"
end
#9

i get error: attempt to get length of a Instance value

#10

i edited the code, im sorry for the error last time.
test it again

#11

nvm i forgot :getchildren() [maxchar]

#12

im printing the object and it just says nil

#13

are the instances named 1 2 3 etc?

#14

no they are not named numbers [maxchar again]

#15

what are they named? in order for us to easily access them, we need a numbering at the end of their name atleast

#16

these are mostly still test names:
image

#17 
for i,v in pairs(FolderDirectory :GetChildren()) do --> Gets the children of FolderDirectory.
	print(i,v) --> Prints the index, and value of the children in the FolderDirectory.
end
#18

can you name them Tripod_Camera1
Spawn_Camera2 etc?

here 1 will be the first instance and 2 will be the second

#19

i believe the @123wolfyking needs instances in a sorted order, looping through the folder will return them in a random order

#20

You’re going to have to order the camera parts manually. If you want to cycle, you can do something like this:

--!strict

local CameraParts: {BasePart} = {
	[1] = workspace.Camera1,
	[2] = workspace.Camera2,
	[3] = workspace.Camera3
}

local currentCameraPart: BasePart? = nil

local function cycle(direction: "next" | "previous"): BasePart
	local currentCameraPartIndex: number? = table.find(CameraParts, currentCameraPart :: BasePart)
	
	if currentCameraPartIndex ~= nil then
		if (direction == "next" and currentCameraPartIndex == #CameraParts) or (direction == "previous" and currentCameraPartIndex == 1) then
			return CameraParts[if direction == "next" then 1 else #CameraParts]
		else
			return CameraParts[currentCameraPartIndex + (if direction == "next" then 1 else -1)]
		end
	else
		return CameraParts[1]
	end
end

-- example cycle
local previousButton = script.Parent.Previous
local nextButton = script.Parent.Next

previousButton.Activated:Connect(function(): ()
	currentCameraPart = cycle("previous")
	-- do camera stuff
end)

nextButton.Activated:Connect(function(): ()
	currentCameraPart = cycle("next")
	-- do camera stuff
end)