mc

--[[
    computer_0 mission control
    monitor_1 monitor
    computer_2 force field generator
    

    MISSION CONTROL
--]]

--[[monitor = peripheral.wrap('left')
monitor.callRemote("monitor_1", "clear")
monitor.callRemote("monitor_1", "setTextScale", 5)
monitor.callRemote("monitor_1", "write", "Test")--]]

monitor = peripheral.wrap('monitor_1')
monitor.clear()
monitor.setTextScale(5)
monitor.setCursorPos(1,2)
monitor.write("test")

width, height = monitor.getSize()

modem = peripheral.wrap('left')

function printScreen(message)
  monitor.clear()
  monitor.setTextScale(5)
  monitor.setCursorPos(width/2-2,2)
  monitor.write(message)
end

seconds = -30

while seconds <= 15 do
  printScreen("T " .. tostring(seconds))
  if seconds == -14 then
    modem.transmit(1926, 1, 'launch-shield')
  end
  seconds = seconds + 1
  os.sleep(1)
end

modem.transmit(1926, 1, 'disable-shield')  
printScreen("Launch completed")

--[[while true do:
  poll for start signal
  begin countdown at 30 seconds
  fire forcefield and siren signal at 15 seconds
  modem.transmit(1926,1,'launch-shield')
  disable systems at + 15 seconds
  modem.transmit(1926,1,'disable-shield')
--]]