Messenger (ServerScreen)

tx,ty = term.getSize()
id = os.getComputerID()
tc = term.isColor()

local function printCentered(text, y)
  if math.floor(#text/2) == 2 then
    centerx = math.floor((tx - string.len(text))/2)
  end
  centerx = math.floor((tx - string.len(text))/2)
  term.setCursorPos(centerx,y)
  print(text)
end

function drawTab()
  term.setCursorPos(1,1)
  print("ID: "..id)
  --help()
end

function drawTitle(title)
  if tc then
    term.setTextColor(colors.red)
    printCentered(title,3)
    term.setTextColor(colors.white)
  else
    printCentered(title,3)
  end
end

function drawMenu(options)
  local tnum = table.getn(options)
  for i in ipairs(options) do
    printCentered(options[i],i+4)
  end
end

function select(number,selection)
  local index = number + 4
  printCentered("> "..selection.." <",index)
end

--[[
function help()
  helptxt = ("Use the arrow keys to navigate")
  if tx - 7 < string.len(helptxt) then
    term.setCursorPos(tx-string.len(helptxt),1)
    print(helptxt)
end
--]]

function exe(selection)

end