NewMenu

os.pullEvent = os.pullEventRaw

local w,h = term.getSize()

function printCentered( y,s )
   local x = math.floor((w - string.len(s)) / 2)
   term.setCursorPos(x,y)
   term.clearLine()
   term.write( s )
end

local nOption = 1

local function drawMenu()
   term.clear()
   term.setCursorPos(1,1)
   term.write("BBC V6.3")
term.setCursorPos(1,2)

   term.setCursorPos(w-11,1)
   if nOption == 1 then
   term.write("TurtleMenu")
elseif nOption == 2 then
   term.write("Chat")
elseif nOption == 3 then
   term.write("Calculator")
elseif nOption == 4 then
   term.write("Notes")
elseif nOption == 5 then
   term.write("Games")
elseif nOption == 6 then
   term.write("Options")
elseif nOption == 7 then
   term.write("Reboot")
elseif nOption == 8 then
   term.write("Shutdown")
else
end

end

--GUI
term.clear()
local function drawFrontend()
   printCentered( math.floor(h/2) - 3, "")
   printCentered( math.floor(h/2) - 2, "" )
   printCentered( math.floor(h/2) - 1, "")
   printCentered( math.floor(h/2) + 0, ((nOption == 1) and "[ TurtleMenu ]") or "TurtleMenu" )
   printCentered( math.floor(h/2) + 1, ((nOption == 2) and "[ Chat ]") or "Chat" )
   printCentered( math.floor(h/2) + 2, ((nOption == 3) and "[ Calculator ]") or "Calculator" )
   printCentered( math.floor(h/2) + 3, ((nOption == 4) and "[ Notes ]") or "Notes" )
   printCentered( math.floor(h/2) + 4, ((nOption == 5) and "[ Games ]") or "Games" )
   printCentered( math.floor(h/2) + 5, ((nOption == 6) and "[ Options ]") or "Options" )
   printCentered( math.floor(h/2) + 6, ((nOption == 7) and "[ Reboot ]") or "Reboot" )
   printCentered( math.floor(h/2) + 7, ((nOption == 8) and "[ Shutdown ]") or "Shutdown" )
end

--Display
drawMenu()
drawFrontend()

while true do
 local e,p = os.pullEvent()
 if e == "key" then
  local key = p
  if key == 17 or key == 200 then

   if nOption > 1 then
    nOption = nOption - 1
    drawMenu()
    drawFrontend()
   end
  elseif key == 31 or key == 208 then
  if nOption < 4 then
  nOption = nOption + 1
  drawMenu()
  drawFrontend()
end
elseif key == 28 then
    --End should not be here!!
break
end --End should be here!!
end
end
term.clear()

--Conditions
if nOption  == 1 then
shell.run("turtlemenu")
elseif nOption == 2 then
shell.run("chat")
elseif nOption == 3 then
shell.run("calculator")
elseif nOption == 4 then
shell.run("notes")
elseif nOption == 5 then
shell.run("games")
elseif nOption == 6 then
shell.run("options")
elseif nOption == 7 then
os.reboot()
elseif nOption == 8 then
os.shutdown()
else
shell.run("menu")
end