startup

m = peripheral.wrap("top")

rednet.open("bottom")


while true do
id, msg, dist = rednet.receive()
h = 0
min = 1
s = 23
 if msg == "Button1" then
  for i=1,(h*3600+min*60+s) do
  m.setCursorPos(1,8)
  m.setBackgroundColor(colors.orange)
  m.setTextColor(colors.blue)
  s=s-1
    if h >=10 then
    hstring = h
    else
    hstring = ("0" .. h)
    end
      if min >=10 then
      mstring = h
      else mstring = ("0" .. min)
      end
    if s >=10 then
    sstring = s
    else
    sstring = ("0" .. s)
    end
     m.write("Engines running!: " .. hstring .. ":" .. mstring .. ":" .. sstring)
     sleep(1)
    if s == 0 and min > 0 then
    min = min-1
    s = 60
      if min == 0 and h > 0 then
      h = h-1
      min = 59
      end
    end
      if s == 0 then
      m.setCursorPos(1,8)
      m.setBackgroundColor(colors.black)
      m.write("                                                                          ")
      m.setCursorPos(1,8)
      m.setBackgroundColor(colors.orange)
      m.setTextColor(colors.blue)
      m.write("Engines offline!")
      end
  end
 end
end