Generate Access Code

generate = true
if fs.exists("PasswordFiles/AccessCode") then
 print("Access Code already exists.")
 print("Would you like to overwrite it?")
 print("Press 'Y' or 'N' to choose")
 while true do
  event, keyCode = os.pullEvent("key")
  if keyCode == 21 then
   generate = true
   break
  elseif keyCode == 49 then
   generate = false
   break
  end
 end
end

function generateCode()
 acFile = fs.open(".PasswordFiles/AccessCode", "wb")
 math.randomseed(os.time())
 for n = 1, 100 do
  acByte = math.random(33, 126)
  acFile.write(acByte)
 end
 acFile.close()
end

if generate then
 if fs.exists(".PasswordFiles") then
  if fs.isDir(".PasswordFiles") then
   generateCode()
  else
   print("Error: /.PasswordFiles is already a file")
  end
 else
  fs.makeDir(".PasswordFiles")
  generateCode()
 end
end