local focus = 0
local talk_start = 0
local TS = 0

function onCreatureDisappear(cid, pos)
	if focus == cid then
		selfSay('Good bye then.')
		focus = 0
		talk_start = 0
	end
end

local function BYE()
	focus = 0
	talk_start = 0
	TS = 0
end

function msgcontains(txt, str)
  	return (string.find(txt, str) and not string.find(txt, '(%w+)' .. str) and not string.find(txt, str .. '(%w+)'))
end

function onCreatureSay(cid, type, msg)

	msg = string.lower(msg)
	if (msgcontains(msg, 'hi') and (focus == 0)) then
		selfSay('Hello ' .. getCreatureName(cid) .. ', Do you want to make arena?.')
  		focus = cid
  		talk_start = os.clock()
		TS = 1
	elseif msgcontains(msg, 'hi') and (focus ~= cid) then
  		selfSay('Im Bussy')
	elseif TS == 1 and msgcontains(msg, 'yes') or msgcontains(msg, 'fight') or msgcontains(msg, 'arena') then
		if getPlayerStorageValue(cid, myArenaLevel) < 3 then
			local enterArena = myArenaLevelIs(cid)
			if getPlayerLevel(cid) >= enterArena.RLV then
				if getPlayerMoney(cid) >= enterArena.RC then
					setPlayerStorageValue(cid, talkNPC, 1)
					doPlayerRemoveMoney(cid, enterArena.RC)
					selfSay("Now you can go to test... ".. enterArena.LN .."")
					BYE()
				else
					selfSay("You don\'t have "..enterArena.RC.." gp! Come back when you will be ready!")
					BYE()
				end
			else
				selfSay("You don\'t have "..enterArena.RLV.." level! Come back when you will be ready!")
				BYE()
			end
		else
			selfSay(Cancel[6])
			BYE()
		end
	elseif TS == 1 and msgcontains(msg, 'no') then
		selfSay("Bye!.")
		BYE()
	elseif msgcontains(msg, 'bye') then
		selfSay("Bye!.")
		BYE()
	end
	return true
end

function onThink()
	doNpcSetCreatureFocus(focus)
	if (os.clock() - talk_start) > 60 then
  		if focus > 0 then
  			selfSay('Good bye then.')
  		end
  		focus = 0
  	end
end