"attempt to preform arithmetic (div) on number and nil"

Help and Feedback Scripting Support
1

For context: I’m trying to make a game/script where the player can change their fps.

The error is in the title–attempt to preform arithmetic (div) on number and nil.

This is my code:

local gui = script.Parent
local textBox = gui.Frame.TextBox


local fps = tonumber(textBox.Text)
local clock = tick()

while true do 
	if fps == nil then
		fps = 60
	else
		fps = tonumber(textBox.Text)
	end
	
	while clock + 1/fps > tick() do end
	wait()
	clock = tick()
end

It’s saying that it can’t do division on a number and nil, but it should be turning whatever the player types into the TextBox into a number with tonumber(). And if it’s empty then the default should be 60 fps.
The error runs first thing, before I type anything into the TextBox. And when I do type nothing happens.

I want to know what I’m doing wrong and how this can be fixed.

2 Likes
3
  1. There’s no need to be calling tonumber twice when it’s done at the top of the script.
  2. Please replace the wait() with RunService.RenderStepped:Wait()…
  3. Can you try printing what the original fps value is?
4

There is though, because otherwise it won’t update each loop. He just has it formatted backwards.
It should read

    local fps = tonumber(textBox.Text) or 60
    while clock + 1/fps > tick() do end -- busy waiting
    wait()
    clock = tick()
5

use waitforchild when getting textbox

gui:WaitForChild(“Frame”).TextBox

should work to replace gui.Frame.TextBox

Enjoy!

Edit: after second look, its possible that another issue may be the cause. it would help if you gave more context on the error

6

Woah I thought this didn’t post correctly but I guess it did! I’ll try out the replies now.

By combining all the replies, it works now! Thank you all!