bridge

--[[ Local Variables ]]--

local termWidth, termHeight = term.getSize()
local selectedItem = 1
local inMainMenu = true
local inLockdownMenu = false

--[[ Menu Methods ]]--

function Bridge()
  inBridgeMenu = true
  selectedItem = 1

  while BridgeMenu do
    term.clear()
    term.setCursorPos(1,1)
    printMenu(BridgeMenu)

    event, key = os.pullEvent("key")
    onKeyPressed(key, LockdownMenu)
  end
end

function openmove()
rs.setBundledOutput("bottom",red,true)
sleep(0.5)
rs.setBundledOutput("bottom",red,false)
sleep(0.5)
end

function open()
openmove()
openmove()
openmove()
openmove()
openmove()
openmove()
end

function BridgeOpen()
  print("Opening Bridge")
  Open()
  sleep(2)
  print("Bridge Opened")
  sleep(2)
  inBridgeMenu = false
  selectedItem = 1
end

function closemove()
rs.setBundledOutput("bottom",black,true)
sleep(0.5)
rs.setBundledOutput("bottom",black,false)
sleep(0.5)
end

function close()
closemove()
closemove()
closemove()
closemove()
closemove()
closemove()
end

function BridgeClose()
  print("Closing Bridge")
  sleep(2)
  print("Bridge Closed")
  inBridgeMenu = false
  selectedItem = 1
end

function Config()
  inMainMenu = false
end

function shutdown()
  shell.run("stop")
end

--[[ Menu Definitions ]]--

mainMenu = {
  [1] = { text = "Bridge Control", handler = Bridge },
  [2] = { text = "Config", handler = Config },
  [3] = { text = "Shutdown", handler = shutdown }
}

BridgeMenu = {
  [1] = { text = "Open Bridge", handler = BridgeOpen  },
  [2] = { text = "Close Bridge", handler = BridgeClose }
}

--[[ Printing Methods ]]--

function printMenu( menu )
  for i=1,#menu do
    if i == selectedItem then
      print(">> "..menu[i].text)
    else
      print("  "..menu[i].text)
    end
  end
end

--[[ Handler Methods ]]--
function onKeyPressed( key, menu)
  if key == keys.enter then
    onItemSelected(menu)
  elseif key == keys.up then
    if selectedItem > 1 then
      selectedItem = selectedItem - 1
    end
  elseif key == keys.down then
    if selectedItem < #menu then
      selectedItem = selectedItem + 1
    end
  end
end

function onItemSelected( menu )
menu[selectedItem].handler()
end

--[[ Main Method ]]--

function main()
  while inMainMenu do
    term.clear()
    term.setCursorPos(1,1)
    printMenu(mainMenu)

    event, key = os.pullEvent("key")
    onKeyPressed(key,mainMenu)
  end
end

main(