Lock with graphics

--The serverID value is the ID of the verification
--server.
serverID = 1
--Change back to needed side
rednet.open("back")

--Graphics functions, just ignore these
maxx,maxy = term.getSize()

local function drawLine(y)
 local num = 1
 term.setCursorPos(1,y)
 repeat
 term.setBackgroundColor(colours.black)
 term.write(" ")
 num = num + 1
 until num == maxx+1
 term.setCursorPos(maxx,1)
end

local function split(y)
 term.setBackgroundColor(colours.white)
 term.setCursorPos(math.floor(maxx/2-1),y)
 term.write("   ")
 term.setBackgroundColor(colours.black)
end


function createOption(number, text1, text2)
 if number == 1 then
 start = 3
 elseif number == 2 then
 start = 8
 elseif number == 3 then
 start = 13
 end
 drawLine(start)
 drawLine(start+1)
 drawLine(start+2)
 split(start)
 split(start+1)
 split(start+2)
 term.setCursorPos(2,start+1)
 if number == 1 then
 print("1) "..text1)
 elseif number == 2 then
 print("3) "..text1)
 elseif number == 3 then
 print("5) "..text1)
 end
 term.setCursorPos(maxx/2+3,start+1)
 if number == 1 then
 print("2) "..text2)
 elseif number == 2 then
 print("4) "..text2)
 elseif number == 3 then
 print("6) "..text2)
 end
end


function verifyUser(user,pass)
 rednet.send(serverID,"verificationServer?")
 repeat
 id,msg = rednet.receive(10)
 until id == serverID
 if id == serverID and msg == "verificationServer!" then
  rednet.send(serverID,textutils.serialize({user,pass}))
  repeat
  id,msg = rednet.receive(10)
  until id == serverID and msg == "verified!" or msg == "verified~"
  if msg == "verified!" then
   return true
  else
   return false
  end
 end
end