How do I do a wait in lua?

function wait(seconds)
local start = os.time()
repeat until os.time() > start + seconds
end
--USE IT LIKE ROBLOX
--Maybe roblox didnt want you to custimize time function because IO and OS function is very powerful
--hacker can use io.open() to create a backdoor script

Roblox's variant of Lua, 'Luau', can use the `wait()` function.

This Lua 5.4 solution is similar to the previous solution, but I've included a simple but complete sample program to run it:

local user_input = ""
local q<const> = "q" 
print("Press <q> to exit..") 
while string.lower(user_input) ~= q do
  io.write("> ")
  user_input = io.read()
  if user_input == "" then 
  else print ("> You wrote '".. user_input .."'")
  end -- if
end -- while
print("> Goodbye!")

local clock = os.clock
function sleep(n)
local t0 = clock()
while clock() - t0 <= n do end
end
--
sleep(2) -- 2 second delay before closing program

The easiest solution would be to use the lua API (or even better the Luau API released by roblox). It is for people who wish to add anything that they want to lua whilst running the VM inside of C or C++.

Roblox did this by introducing a function called "wait" and just yielding the thread for a certain amount of time. For the person who posted before me saying "and you can't make it"... yes you can, you can introduce anything you want to lua with this solution.

I'll be honest, it's quite a difficult solution. But if you want it so badly, there is no other way to directly embed a "wait" function in lua's global environment.