RandomStuff/SimpleCash at master · jordyvl/RandomStuff · GitHub

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local money = 0 -- amount of money to start with
function clearPrint(string)
  term.clear()
  term.setCursorPos(1,1)
  print(string)
end

while true do
  clearPrint("---------------")
  print("-cash register-")
  print("---------------")
  print("Current balance: "..money.."$.")
  print("Type a command: [add, check, remove]")
  write("> ")
  input = read()
  if input == "add" then
    clearPrint("----------")
    print("-Add Cash-")
    print("----------")
    write "Add Ammount: "
    add = read("$")
    money = money + add
    print("Your new balance: "..money.."$.")
  elseif input == "check" then
    clearPrint("---------------")
    print("-cash checking-")
    print("---------------")
    print("You currently have: "..money.."$.")
    sleep(2)
  elseif input == "remove" then
    clearPrint("-------------")
    print("-Remove cash-")
    print("-------------")
    write "Subtract Ammount: "
    remove = read("$")
    money = money - remove
    print("Your new balance: "..money.."$.")
   else
   print"Wrong input"
  end
end