local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)
local talkState = {}

function onCreatureAppear(cid) npcHandler:onCreatureAppear(cid) end
function onCreatureDisappear(cid) npcHandler:onCreatureDisappear(cid) end
function onCreatureSay(cid, type, msg) npcHandler:onCreatureSay(cid, type, msg) end
function onThink() npcHandler:onThink() end

function playerHaveItems(cid, itemid)
local items = type(itemid) == "table" and itemid or {itemid}
for i = 1, #items do
if getPlayerItemCount(cid, items[i]) <= 0 then
return false
end
end
return true
end

function doPlayerRemoveItems(cid, itemid, count)
local items = type(itemid) == "table" and itemid or {itemid}
for i = 1, #items do
doPlayerRemoveItem(cid, items[i], count ~= nil and count or 1)
end
return nil
end

function creatureSayCallback(cid, type, msg)

if(not npcHandler:isFocused(cid)) then
return false
end

if msgcontains(msg, "trocar") then
if playerHaveItems(cid, {5896, 6569, 2674, 5894, 5888, 5881, 5901}) then
doPlayerRemoveItems(cid, {5896, 6569, 2674, 5894, 5888, 5881, 5901}, 700)
doPlayer***Item(cid, 2521, 1)
else
selfSay("Voce precisa de 700 Future orb, 700 water pendant, 700 Stone orb, 700 Essenses of fire, 700 Feathers, 700 bottles of poison e 700 Ice Orb, Para Conseguir Uma Master Ball.")
end
end 
return true

endnpcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, creatureSayCallback)
npcHandler:***Module(FocusModule:new())