Vehicle Spawning System not working

[SevereDeveloper (Dexter)]

Hello, I am currently making a vehicle system that checks a folder and adds all the “pads” which are just parts into a table. Each pad has a value inside determining if it is being touched by a vehicle. The script chooses a random pad that has the being touched value false after the user triggers a proximity prompt.

The problem is it will say there are no more available spots when there are, and if you keep trying to spawn one it eventually works.

local pad = {}
for _, child in ipairs(spawnsfolder:GetChildren()) do
	table.insert(pad, child.Name)
	print(pad)
end


function FindSpawnLocation()
	local randomIndex = math.random(#pad)
	local selectedPad = pad[randomIndex]
	if spawnsfolder[selectedPad].BeingTouched.Value == false then
		print(selectedPad)
		return selectedPad
	end
end





proximityprompt.Triggered:Connect(function(player)
	local SpawnLoc = spawnsfolder[FindSpawnLocation()].Position --line 27
--clone vehicle
end)

Error: invalid argument #2 (string expected, got nil) Line 27

[1tzSHR3K (natsegos)]

It seems the issue is in the FindSpawnLocation function. It only returns the selected pad if the random one is false. But what if it’s not? Idk if I understood correctly, but I think what you need to do is keep checking for a random index until the being touched value is false. Otherwise, it won’t return anything, which is why the error says it got nil sometimes.

function FindSpawnLocation(): Part
  local selectedPad: Part = nil
  
  while selectedPad == nil do
    local randomIndex = math.random(#pad)
    if not spawnsfolder[pad[randomIndex]].BeingTouched.Value then
        selectedPad = pad[randomIndex]
    end
  end

  return selectedPad
end