function clear()
 term.clear()
 term.setCursorPos(1,1)
end

rednet.open("back")
username = "Chum"
local chatBuddy = nil

function help()
 print("Welcome to askenef's chat shizzle 1.0")
 print("Press T to Type")
end

clear()
help()

while true do
 event, id, msg = os.pullEvent()

 if event == "rednet_message" and id == chatBuddy then
  print(msg)

 elseif event == "char" then

  if id == "t" then
   write(username.." > ")
   msgsent = read()
   if chatBuddy ~= nil then
    rednet.send(chatBuddy,username.." > "..msgsent)
   else
    print("Quit talking to yourself, dumbass!")
    --always punish users for doing stuff wrong
   end

  elseif id == "h" then
   write("New username: ")
   username = read()

  elseif id == "c" then
   write("Chum ID: ") --put your chum's computer ID here
   chatBuddy = tonumber(read())
   clear()
   print("Conncted. You may chat if your chum")
   print("is connected to you right now")

  elseif id == "a" then
   chatBuddy = nil
   clear()
   help()

  end

 end

end