receiverMonitor

local serverID = 58 -- change to the id of the computer that sends the message
local sSide = "right" -- change to the side of the monitor
local w = rednet.open("top")

local mon = peripheral.wrap(sSide)
if not mon then
  print("No monitor on ", sSide)
  return
end

local printcentred =
function(text, line)
  local maxw, maxh = mon.getSize()
  local curx, cury = mon.getCursorPos()
  if line == nil then
    line = cury
  else
    cury = line
  end
  mon.setCursorPos((maxw-#text+3)/2,cury)
  mon.write(text)
  mon.setCursorPos(curx,cury+1)
end

function endswith(s, send)
  if s == nil or send == nil then return false end
  return #s >= #send and s:find(send, #s-#send+1, true) and true or false
end

term.redirect(mon)
while true do
  local id, msg = rednet.receive()
  if id == serverID then
    if (endswith(msg, "at:")) then
      mon.clear()
      mon.setCursorPos(1, 3)
    else
      if (endswith(msg, "%")) then
    mon.setCursorPos(1, 4)
      else
    if (endswith(msg, "mated:") or endswith(msg, "ges...") or endswith(msg, " in:") or endswith "%.") then
      mon.setCursorPos(1,6)
    else
          mon.setCursorPos(1, 7)
    end
      end
    end
      printcentred(msg)
  end
end