Chat - Bounce Compatable

modem = peripheral.find("modem")

local mtable = {}
local w, h = term.getSize()

os.loadAPI("ea")

function clear()

        ea.sbc(colors.white)
        term.clear()

        ea.stc(colors.blue)
        ea.scp(1,18)
        ea.sbc(colors.gray)
        write("<Type /help for help>")
        ea.sbc(colors.white)
 ea.scp(1,19)
        write("[::> ")
        ea.scp(6,19)

end


function start()

        ea.sbc(colors.white)
 ea.stc(colors.black)
        term.clear()
        ea.scp(16,9)
        print("Kosy Chat System")
        ea.scp(13,11)
        print("Username: ")
        ea.scp(13,12)
        print("Channel : ")

        ea.scp(22,11)
        us = io.read()
        ea.scp(22,12)
        ch = io.read()

        modem.open(tonumber(ch))
        clear()
        chatgo()

end



function drawm()

        if(#mtable > h-2)then local tt = mtable[h-2] mtable = {} table.insert(mtable,tt) tt = "" end

        for i = 1, #mtable do

                ea.scp(1,i)
  print(mtable[i])

        end

end


function receive()

        e = {os.pullEvent("modem_message")}


                 table.insert(mtable, e[5])

 end

 function send()



                ea.scp(7,19)
                readm = read()
                modem.transmit(tonumber(ch), tonumber(ch), "<"..us..">: "..readm)
                clear()



end


function chatgo()

        while true do

                drawm()
                parallel.waitForAny(send, receive)

        end

end
start()