How do I make a while end script start up again if it's under the wanted conditions?

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#1

Hello, I am working on something that continues to spawn bricks until it reaches a certain amount but I also want it to continue doing if it goes under 10 again. (Like if it’s at 10 parts and I delete 1 it should start adding another part.) Now how would I do that?

The code below is what I was suggested before hand which works- until you try do remove a part and you realize that it doesn’t loop again.

while #game.Workspace.Folder:GetChildren() < 10 do --the number used is an example
    
end

How would I make this loop?

#2

I don’t understand why you placed a # infront of game.workspace …?

#3

The # counts the amount of parts in the folder.

#4 
while wait() do
   local parts = workspace.Folder:GetChildren()
   if (#parts < 10) then
      --add parts
   end
end

You can do something like this.
RunService would be better than while loops (oops, I’m in a rush).

#5

You can detect when the part is deleted/destroyed using Instance | Documentation - Roblox Creator Hub from the folder the part is stored. From there you can start the while loop again.

I don’t recommend @MixedConscience polling approach as every wait() you are potentially doing an unnecessary :GetChildren() operation when potentially no parts have been removed from the folder at all.

#6

So:

Instance.ChildRemoved:Connect(function(child)
     while #game.Workspace.Folder:GetChildren() < 10 do
        --add parts
     end
end)

??
The exact words from you.

#7

When I remove a part from it it just doesn’t do anything.

#8

Attempt:

I’m thinking of newer way.

#9 
local Folder = workspace.Folder

Folder.ChildRemoved:Connect(function()
     local Children = Folder:GetChildren()

     local connection = game:GetService("RunService").Heartbeat:Connect(function()
        if (#Children < 10) then
            --add part
            print("Added")
        elseif (#Children == 10)
            connection:Disconnect()
            print("Disconnected")
        end
     end
end)

Would be better than a while loop. And I’m unsure about Runservice.Heartbeat because it’s deprecated. If that doesn’t work might be the event so use RunService.PostSimulation instead or if it errors come back.

If I don’t respond, I’m gone.

#10

Make sure to remove the part from the server to ensure the script can detect the parts properly destroying.

Anyways for @MixedConscience you can still use a while loop and its easier since you don’t have to manage the connection but yeah just make sure to avoid stack overflow error like I did :stuck_out_tongue:.

Full code + Explosions 
local partFolder = Instance.new("Folder")
partFolder.Parent = workspace

local function randomVector(xmin,xmax,ymin,ymax,zmin,zmax)
	return Vector3.new(math.random(xmin,xmax),math.random(ymin,ymax),math.random(zmin,zmax))
end

local function spawnParts(folder)
	local children = folder:GetChildren()
	local numChildren = #children
	while numChildren < 10 do
		local part = Instance.new("Part")
		part.Position = randomVector(-5,5,0,5,-5,5)*10
		part.Parent = folder
		
		local explosion = Instance.new("Explosion")
		explosion.BlastPressure = 500000 * 10
		explosion.Position = part.Position+randomVector(-5,5,-5,5,-5,5)/5
		explosion.Parent = workspace
		local children = folder:GetChildren()
		numChildren = #children -- make sure to remeasure or else..
	end
end

partFolder.ChildRemoved:Connect(function()
	spawnParts(partFolder)
end)

spawnParts(partFolder)
While true do loops