Npc problem OTX 3

[armyman]

I got this error in console when i talk with him.

Lua Script Error: [Npc interface]
data/npc/scripts/aldee.lua:onCreatureSay
data/npc/scripts/aldee.lua:12: attempt to call method 'AddFocus' (a nil value)
stack traceback:
        [C]: in function 'AddFocus'
        data/npc/scripts/aldee.lua:12: in function 'callback'
        data/npc/lib/npcsystem/npchandler.lua:401: in function 'onCreatureSay'
        data/npc/scripts/aldee.lua:7: in function <data/npc/scripts/aldee.lua:7>

NPC Script

local keywordHandler = KeywordHandler:new()
local keywordHandler = KeywordHandler:new()
local npcHandler = NpcHandler:new(keywordHandler)
NpcSystem.parseParameters(npcHandler)
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 AlDeeBehaviour (cid, type, msg)

npcHandler:AddFocus({"hi", "hello"}, "Hello, hello, |PLAYERNAME|! Please come in, look, and buy!", 0, cid, msg)
npcHandler:AddQueue({"hi", "hello"}, "I'll be with you in a moment, |PLAYERNAME|.", 0, cid, msg)
npcHandler:RemoveFocus({"bye", "farewell"}, "Bye, bye.", 0, cid, msg)

  if(not npcHandler:isFocused(cid)) then
     return 0
  end
        if(msgcontains(msg, 'pick') or msgcontains(msg, 'small axe')) then
                npcHandler:say("Picks are hard to come by. I trade them only for high quality small axes. Do you want to trade?",cid)
                npcHandler:doTopic(cid, 1)
        elseif(msgcontains(msg, "yes")) and (npcHandler.Topic == 1) then
                if doPlayerRemoveItem(cid,2559,1) == TRUE then 
                        doPlayerAddItem(cid,2553,1)
                        npcHandler:say("Splendid! Here take your pickaxe.",cid)
                        npcHandler:doTopic(cid, 0)
                else
                        npcHandler:say("Sorry, I am looking for a SMALL axe.", cid)
                        npcHandler:doTopic(cid, 0)
                end
        elseif(npcHandler.Topic == 1) then
                npcHandler:say("Well, then not.", cid)
                npcHandler:doTopic(cid, 0)
        end

local keywords = {
["how are you"] = {response = "I am fine. I'm so glad to have you here as my customer."},
["sell"] = {response = "I sell much. Just read the blackboards for my awesome wares or just ask me."},
["job"] = {response = "I am a merchant. What can I do for you?"},
["name"] = {response = "My name is Al Dee, but you can call me Al. Do you want to buy something?"},
["time"] = {response = "It is about "..getTime()..". I am so sorry, I have no watches to sell. Do you want to buy something else?"},
["help"] = {response = "I sell stuff to prices that low, that all other merchants would mock at my stupidity."},
["monster"] = {response = "If you want to challenge the monsters, you need some weapons and armor I sell. You need them definitely!"},
["dungeon"] = {response = "If you want to explore the dungeons, you have to equip yourself with the vital stuff I am selling. It's vital in the deepest sense of the word."},
["sewer"] = {response = "Oh, our sewer system is very primitive; so primitive it's overrun by rats. But the stuff I sell is save from them. Do you want to buy some of it?"},
["king"] = {response = "The king encouraged salesmen to travel here, but only I dared to take the risk, and a risk it was!"},
["dallheim"] = {response = "Some call him a hero."},
["bug"] = {response = "Bugs plague this isle, but my wares are bugfree, totally bugfree."},
["stuff"] = {response = "I sell equipment of all kinds, all kind available on this isle. Just ask me about my wares if you are interested."},
["tibia"] = {response = "One day I will return to the continent as a rich, a very rich man!"},
["thais"] = {response = "Thais is a crowded town."},
["wares"] = {response = "I sell weapons, shields, armor, helmets, and equipment. For what do you want to ask?"},
["offer"] = {response = "I sell weapons, shields, armor, helmets, and equipment. For what do you want to ask?"},
["weapon"] = {response = "I sell spears, rapiers, sabres, daggers, hand axes, axes, and short swords. Just tell me what you want to buy."},
["armor"] = {response = "I sell jackets, coats, doublets, leather armor, and leather legs. Just tell me what you want to buy."},
["helmet"] = {response = "I sell leather helmets, studded helmets, and chain helmets. Just tell me what you want to buy."},
["shield"] = {response = "I sell wooden shields and studded shields. Just tell me what you want to buy."},
["equipment"] = {response = "I sell torches, bags, scrolls, shovels, picks, backpacks, sickles, scythes, ropes and fishing rods. Just tell me what you want to buy."},
["do you sell"] = {response = "What do you need? I sell weapons, armor, helmets, shields, and equipment."},
["do you have"] = {response = "What do you need? I sell weapons, armor, helmets, shields, and equipment."},
["club"] = {response = "I don't buy this garbage!"},
}
  for v in pairs(keywords) do
    if (msgcontains(msg, v)) then
        npcHandler:say(keywords[v].response, cid)
        npcHandler:doTopic(cid, 0)
    end
  end
  return 1
end

------BUYABLE_ITEMS-----

local shopModule = ShopModule:new()
npcHandler:addModule(shopModule)

shopModule:addBuyableItem({'spear'},               2389, 10)
shopModule:addBuyableItem({'rapier'},            2384, 15)
shopModule:addBuyableItem({'sabre'},            2385, 25)
shopModule:addBuyableItem({'dagger'},            2379, 5)
shopModule:addBuyableItem({'sickle'},            2405, 8)
shopModule:addBuyableItem({'hand axe'},            2380, 8)
shopModule:addBuyableItem({'axe'},            2386, 20)
shopModule:addBuyableItem({'short sword'},        2406, 30)
shopModule:addBuyableItem({'jacket'},            2650, 10)
shopModule:addBuyableItem({'coat'},            2651, 8)
shopModule:addBuyableItem({'doublet'},            2485, 16)
shopModule:addBuyableItem({'leather armor'},        2467, 25)
shopModule:addBuyableItem({'leather legs'},        2649, 10)
shopModule:addBuyableItem({'leather helmet'},        2461, 12)
shopModule:addBuyableItem({'studded helmet'},        2482, 63)
shopModule:addBuyableItem({'chain helmet'},        2458, 52)
shopModule:addBuyableItem({'wooden shield'},        2512, 15)
shopModule:addBuyableItem({'studded shield'},        2526, 50)

shopModule:addBuyableItem({'torch'},        2050, 2)
shopModule:addBuyableItem({'bag'},        1987, 4)
shopModule:addBuyableItem({'scroll'},        1949, 5)
shopModule:addBuyableItem({'shovel'},        2554, 10)
shopModule:addBuyableItem({'backpack'},        1988, 10)
shopModule:addBuyableItem({'scythe'},        2550, 12)
shopModule:addBuyableItem({'rope'},        2120, 50)
shopModule:addBuyableItem({'rod'},           2580, 150)

npcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, AlDeeBehaviour)

 

[ond]

Isn't it addFocus? With a lower 'a' in the beginning

 

[armyman]

Can i fix it?

 

[ond]

No it's impossible. Delet servorr!

Jokes a side, open up npchandler.lua and look for addFocus and see how it's spelled.

 

[armyman]

-- Advanced NPC System by Jiddo

if NpcHandler == nil then
    -- Constant talkdelay behaviors.
    TALKDELAY_NONE = 0 -- No talkdelay. Npc will reply immedeatly.
    TALKDELAY_ONTHINK = 1 -- Talkdelay handled through the onThink callback function. (Default)
    TALKDELAY_EVENT = 2 -- Not yet implemented

    -- Currently applied talkdelay behavior. TALKDELAY_ONTHINK is default.
    NPCHANDLER_TALKDELAY = TALKDELAY_ONTHINK

    -- Constant indexes for defining default messages.
    MESSAGE_GREET = 1 -- When the player greets the npc.
    MESSAGE_FAREWELL = 2 -- When the player unGreets the npc.
    MESSAGE_BUY = 3 -- When the npc asks the player if he wants to buy something.
    MESSAGE_ONBUY = 4 -- When the player successfully buys something via talk.
    MESSAGE_BOUGHT = 5 -- When the player bought something through the shop window.
    MESSAGE_SELL = 6 -- When the npc asks the player if he wants to sell something.
    MESSAGE_ONSELL = 7 -- When the player successfully sells something via talk.
    MESSAGE_SOLD = 8 -- When the player sold something through the shop window.
    MESSAGE_MISSINGMONEY = 9 -- When the player does not have enough money.
    MESSAGE_NEEDMONEY = 10 -- Same as above, used for shop window.
    MESSAGE_MISSINGITEM = 11 -- When the player is trying to sell an item he does not have.
    MESSAGE_NEEDITEM = 12 -- Same as above, used for shop window.
    MESSAGE_NEEDSPACE = 13 -- When the player don't have any space to buy an item
    MESSAGE_NEEDMORESPACE = 14 -- When the player has some space to buy an item, but not enough space
    MESSAGE_IDLETIMEOUT = 15 -- When the player has been idle for longer then idleTime allows.
    MESSAGE_WALKAWAY = 16 -- When the player walks out of the talkRadius of the npc.
    MESSAGE_DECLINE = 17 -- When the player says no to something.
    MESSAGE_SENDTRADE = 18 -- When the npc sends the trade window to the player
    MESSAGE_NOSHOP = 19 -- When the npc's shop is requested but he doesn't have any
    MESSAGE_ONCLOSESHOP = 20 -- When the player closes the npc's shop window
    MESSAGE_ALREADYFOCUSED = 21 -- When the player already has the focus of this npc.
    MESSAGE_WALKAWAY_MALE = 22 -- When a male player walks out of the talkRadius of the npc.
    MESSAGE_WALKAWAY_FEMALE = 23 -- When a female player walks out of the talkRadius of the npc.

    -- Constant indexes for callback functions. These are also used for module callback ids.
    CALLBACK_CREATURE_APPEAR = 1
    CALLBACK_CREATURE_DISAPPEAR    = 2
    CALLBACK_CREATURE_SAY = 3
    CALLBACK_ONTHINK = 4
    CALLBACK_GREET = 5
    CALLBACK_FAREWELL = 6
    CALLBACK_MESSAGE_DEFAULT = 7
    CALLBACK_PLAYER_ENDTRADE = 8
    CALLBACK_PLAYER_CLOSECHANNEL = 9
    CALLBACK_ONBUY = 10
    CALLBACK_ONSELL = 11
    CALLBACK_ONADDFOCUS = 18
    CALLBACK_ONRELEASEFOCUS = 19
    CALLBACK_ONTRADEREQUEST = 20

    -- Addidional module callback ids
    CALLBACK_MODULE_INIT = 12
    CALLBACK_MODULE_RESET = 13

    -- Constant strings defining the keywords to replace in the default messages.
    TAG_PLAYERNAME = "|PLAYERNAME|"
    TAG_ITEMCOUNT = "|ITEMCOUNT|"
    TAG_TOTALCOST = "|TOTALCOST|"
    TAG_ITEMNAME = "|ITEMNAME|"
    TAG_TRAVELCOST = "|TRAVELCOST|"

    NpcHandler = {
        keywordHandler = nil,
        focuses = nil,
        talkStart = nil,
        idleTime = 120,
        talkRadius = 3,
        talkDelayTime = 1, -- Seconds to delay outgoing messages.
        talkDelay = nil,
        callbackFunctions = nil,
        modules = nil,
        shopItems = nil, -- They must be here since ShopModule uses 'static' functions
        eventSay = nil,
        eventDelayedSay = nil,
        topic = nil,
        messages = {
            -- These are the default replies of all npcs. They can/should be changed individually for each npc.
            [MESSAGE_GREET] = "Greetings, |PLAYERNAME|.",
            [MESSAGE_FAREWELL] = "Good bye, |PLAYERNAME|.",
            [MESSAGE_BUY] = "Do you want to buy |ITEMCOUNT| |ITEMNAME| for |TOTALCOST| gold coins?",
            [MESSAGE_ONBUY] = "Here you are.",
            [MESSAGE_BOUGHT] = "Bought |ITEMCOUNT|x |ITEMNAME| for |TOTALCOST| gold.",
            [MESSAGE_SELL] = "Do you want to sell |ITEMCOUNT| |ITEMNAME| for |TOTALCOST| gold coins?",
            [MESSAGE_ONSELL] = "Here you are, |TOTALCOST| gold.",
            [MESSAGE_SOLD] = "Sold |ITEMCOUNT|x |ITEMNAME| for |TOTALCOST| gold.",
            [MESSAGE_MISSINGMONEY] = "You don't have enough money.",
            [MESSAGE_NEEDMONEY] = "You don't have enough money.",
            [MESSAGE_MISSINGITEM] = "You don't have so many.",
            [MESSAGE_NEEDITEM] = "You do not have this object.",
            [MESSAGE_NEEDSPACE] = "You do not have enough capacity.",
            [MESSAGE_NEEDMORESPACE] = "You do not have enough capacity for all items.",
            [MESSAGE_IDLETIMEOUT] = "Good bye.",
            [MESSAGE_WALKAWAY] = "Good bye.",
            [MESSAGE_DECLINE] = "Then not.",
            [MESSAGE_SENDTRADE] = "Of course, just browse through my wares.",
            [MESSAGE_NOSHOP] = "Sorry, I'm not offering anything.",
            [MESSAGE_ONCLOSESHOP] = "Thank you, come back whenever you're in need of something else.",
            [MESSAGE_ALREADYFOCUSED] = "|PLAYERNAME|, I am already talking to you.",
            [MESSAGE_WALKAWAY_MALE] = "Good bye.",
            [MESSAGE_WALKAWAY_FEMALE] = "Good bye."
        }
    }

    -- Creates a new NpcHandler with an empty callbackFunction stack.
    function NpcHandler:new(keywordHandler)
        local obj = {}
        obj.callbackFunctions = {}
        obj.modules = {}
        obj.eventSay = {}
        obj.eventDelayedSay = {}
        obj.topic = {}
        obj.focuses = {}
        obj.talkStart = {}
        obj.talkDelay = {}
        obj.keywordHandler = keywordHandler
        obj.messages = {}
        obj.shopItems = {}

        setmetatable(obj.messages, self.messages)
        self.messages.__index = self.messages

        setmetatable(obj, self)
        self.__index = self
        return obj
    end

    -- Re-defines the maximum idle time allowed for a player when talking to this npc.
    function NpcHandler:setMaxIdleTime(newTime)
        self.idleTime = newTime
    end

    -- Attaches a new keyword handler to this npchandler
    function NpcHandler:setKeywordHandler(newHandler)
        self.keywordHandler = newHandler
    end

    -- Function used to change the focus of this npc.
    function NpcHandler:addFocus(newFocus)
        if self:isFocused(newFocus) then
            return
        end

        self.focuses[#self.focuses + 1] = newFocus
        self.topic[newFocus] = 0
        local callback = self:getCallback(CALLBACK_ONADDFOCUS)
        if callback == nil or callback(newFocus) then
            self:processModuleCallback(CALLBACK_ONADDFOCUS, newFocus)
        end
        self:updateFocus()
    end

    -- Function used to verify if npc is focused to certain player
    function NpcHandler:isFocused(focus)
        for k,v in pairs(self.focuses) do
            if v == focus then
                return true
            end
        end
        return false
    end

    -- This function should be called on each onThink and makes sure the npc faces the player it is talking to.
    --    Should also be called whenever a new player is focused.
    function NpcHandler:updateFocus()
        for pos, focus in pairs(self.focuses) do
            if focus ~= nil then
                doNpcSetCreatureFocus(focus)
                return
            end
        end
        doNpcSetCreatureFocus(0)
    end

    -- Used when the npc should un-focus the player.
    function NpcHandler:releaseFocus(focus)
        if shop_cost[focus] ~= nil then
            shop_amount[focus] = nil
            shop_cost[focus] = nil
            shop_rlname[focus] = nil
            shop_itemid[focus] = nil
            shop_container[focus] = nil
            shop_npcuid[focus] = nil
            shop_eventtype[focus] = nil
            shop_subtype[focus] = nil
            shop_destination[focus] = nil
            shop_premium[focus] = nil
        end

        if self.eventDelayedSay[focus] then
            self:cancelNPCTalk(self.eventDelayedSay[focus])
        end

        if not self:isFocused(focus) then
            return
        end

        local pos = nil
        for k,v in pairs(self.focuses) do
            if v == focus then
                pos = k
            end
        end
        self.focuses[pos] = nil

        self.eventSay[focus] = nil
        self.eventDelayedSay[focus] = nil
        self.talkStart[focus] = nil
        self.topic[focus] = nil

        local callback = self:getCallback(CALLBACK_ONRELEASEFOCUS)
        if callback == nil or callback(focus) then
            self:processModuleCallback(CALLBACK_ONRELEASEFOCUS, focus)
        end

        if Player(focus) ~= nil then
            self:updateFocus()
        end
    end

    -- Returns the callback function with the specified id or nil if no such callback function exists.
    function NpcHandler:getCallback(id)
        local ret = nil
        if self.callbackFunctions ~= nil then
            ret = self.callbackFunctions[id]
        end
        return ret
    end

    -- Changes the callback function for the given id to callback.
    function NpcHandler:setCallback(id, callback)
        if self.callbackFunctions ~= nil then
            self.callbackFunctions[id] = callback
        end
    end

    -- Adds a module to this npchandler and inits it.
    function NpcHandler:addModule(module)
        if self.modules ~= nil then
            self.modules[#self.modules + 1] = module
            module:init(self)
        end
    end

    -- Calls the callback function represented by id for all modules added to this npchandler with the given arguments.
    function NpcHandler:processModuleCallback(id, ...)
        local ret = true
        for i, module in pairs(self.modules) do
            local tmpRet = true
            if id == CALLBACK_CREATURE_APPEAR and module.callbackOnCreatureAppear ~= nil then
                tmpRet = module:callbackOnCreatureAppear(...)
            elseif id == CALLBACK_CREATURE_DISAPPEAR and module.callbackOnCreatureDisappear ~= nil then
                tmpRet = module:callbackOnCreatureDisappear(...)
            elseif id == CALLBACK_CREATURE_SAY and module.callbackOnCreatureSay ~= nil then
                tmpRet = module:callbackOnCreatureSay(...)
            elseif id == CALLBACK_PLAYER_ENDTRADE and module.callbackOnPlayerEndTrade ~= nil then
                tmpRet = module:callbackOnPlayerEndTrade(...)
            elseif id == CALLBACK_PLAYER_CLOSECHANNEL and module.callbackOnPlayerCloseChannel ~= nil then
                tmpRet = module:callbackOnPlayerCloseChannel(...)
            elseif id == CALLBACK_ONBUY and module.callbackOnBuy ~= nil then
                tmpRet = module:callbackOnBuy(...)
            elseif id == CALLBACK_ONSELL and module.callbackOnSell ~= nil then
                tmpRet = module:callbackOnSell(...)
            elseif id == CALLBACK_ONTRADEREQUEST and module.callbackOnTradeRequest ~= nil then
                tmpRet = module:callbackOnTradeRequest(...)
            elseif id == CALLBACK_ONADDFOCUS and module.callbackOnAddFocus ~= nil then
                tmpRet = module:callbackOnAddFocus(...)
            elseif id == CALLBACK_ONRELEASEFOCUS and module.callbackOnReleaseFocus ~= nil then
                tmpRet = module:callbackOnReleaseFocus(...)
            elseif id == CALLBACK_ONTHINK and module.callbackOnThink ~= nil then
                tmpRet = module:callbackOnThink(...)
            elseif id == CALLBACK_GREET and module.callbackOnGreet ~= nil then
                tmpRet = module:callbackOnGreet(...)
            elseif id == CALLBACK_FAREWELL and module.callbackOnFarewell ~= nil then
                tmpRet = module:callbackOnFarewell(...)
            elseif id == CALLBACK_MESSAGE_DEFAULT and module.callbackOnMessageDefault ~= nil then
                tmpRet = module:callbackOnMessageDefault(...)
            elseif id == CALLBACK_MODULE_RESET and module.callbackOnModuleReset ~= nil then
                tmpRet = module:callbackOnModuleReset(...)
            end
            if not tmpRet then
                ret = false
                break
            end
        end
        return ret
    end

    -- Returns the message represented by id.
    function NpcHandler:getMessage(id)
        local ret = nil
        if self.messages ~= nil then
            ret = self.messages[id]
        end
        return ret
    end

    -- Changes the default response message with the specified id to newMessage.
    function NpcHandler:setMessage(id, newMessage)
        if self.messages ~= nil then
            self.messages[id] = newMessage
        end
    end

    -- Translates all message tags found in msg using parseInfo
    function NpcHandler:parseMessage(msg, parseInfo)
        local ret = msg
        for search, replace in pairs(parseInfo) do
            ret = string.gsub(ret, search, replace)
        end
        return ret
    end

    -- Makes sure the npc un-focuses the currently focused player
    function NpcHandler:unGreet(cid)
        if not self:isFocused(cid) then
            return
        end

        local callback = self:getCallback(CALLBACK_FAREWELL)
        if callback == nil or callback() then
            if self:processModuleCallback(CALLBACK_FAREWELL) then
                local msg = self:getMessage(MESSAGE_FAREWELL)
                local player = Player(cid)
                local playerName = player and player:getName() or -1
                local parseInfo = { [TAG_PLAYERNAME] = playerName }
                self:resetNpc(cid)
                msg = self:parseMessage(msg, parseInfo)
                self:say(msg, cid, true)
                self:releaseFocus(cid)
            end
        end
    end

    -- Greets a new player.
    function NpcHandler:greet(cid)
        if cid ~= 0 then
            local callback = self:getCallback(CALLBACK_GREET)
            if callback == nil or callback(cid) then
                if self:processModuleCallback(CALLBACK_GREET, cid) then
                    local msg = self:getMessage(MESSAGE_GREET)
                    local player = Player(cid)
                    local playerName = player and player:getName() or -1
                    local parseInfo = { [TAG_PLAYERNAME] = playerName }
                    msg = self:parseMessage(msg, parseInfo)
                    self:say(msg, cid, true)
                else
                    return
                end
            else
                return
            end
        end
        self:addFocus(cid)
    end

    -- Handles onCreatureAppear events. If you with to handle this yourself, please use the CALLBACK_CREATURE_APPEAR callback.
    function NpcHandler:onCreatureAppear(creature)
        local cid = creature:getId()
        local callback = self:getCallback(CALLBACK_CREATURE_APPEAR)
        if callback == nil or callback(cid) then
            if self:processModuleCallback(CALLBACK_CREATURE_APPEAR, cid) then
                --
            end
        end
    end

    -- Handles onCreatureDisappear events. If you with to handle this yourself, please use the CALLBACK_CREATURE_DISAPPEAR callback.
    function NpcHandler:onCreatureDisappear(creature)
        local cid = creature:getId()
        if getNpcCid() == cid then
            return
        end

        local callback = self:getCallback(CALLBACK_CREATURE_DISAPPEAR)
        if callback == nil or callback(cid) then
            if self:processModuleCallback(CALLBACK_CREATURE_DISAPPEAR, cid) then
                if self:isFocused(cid) then
                    self:unGreet(cid)
                end
            end
        end
    end

    -- Handles onCreatureSay events. If you with to handle this yourself, please use the CALLBACK_CREATURE_SAY callback.
    function NpcHandler:onCreatureSay(creature, msgtype, msg)
        local cid = creature:getId()
        local callback = self:getCallback(CALLBACK_CREATURE_SAY)
        if callback == nil or callback(cid, msgtype, msg) then
            if self:processModuleCallback(CALLBACK_CREATURE_SAY, cid, msgtype, msg) then
                if not self:isInRange(cid) then
                    return
                end

                if self.keywordHandler ~= nil then
                    if self:isFocused(cid) or not self:isFocused(cid) then
                        local ret = self.keywordHandler:processMessage(cid, msg)
                        if not ret then
                            local callback = self:getCallback(CALLBACK_MESSAGE_DEFAULT)
                            if callback ~= nil and callback(cid, msgtype, msg) then
                                self.talkStart[cid] = os.time()
                            end
                        else
                            self.talkStart[cid] = os.time()
                        end
                    end
                end
            end
        end
    end

    -- Handles onBuy events. If you wish to handle this yourself, use the CALLBACK_ONBUY callback.
    function NpcHandler:onBuy(creature, itemid, subType, amount, ignoreCap, inBackpacks)
        local cid = creature:getId()
        local callback = self:getCallback(CALLBACK_ONBUY)
        if callback == nil or callback(cid, itemid, subType, amount, ignoreCap, inBackpacks) then
            if self:processModuleCallback(CALLBACK_ONBUY, cid, itemid, subType, amount, ignoreCap, inBackpacks) then
                --
            end
        end
    end

    -- Handles onSell events. If you wish to handle this yourself, use the CALLBACK_ONSELL callback.
    function NpcHandler:onSell(creature, itemid, subType, amount, ignoreCap, inBackpacks)
        local cid = creature:getId()
        local callback = self:getCallback(CALLBACK_ONSELL)
        if callback == nil or callback(cid, itemid, subType, amount, ignoreCap, inBackpacks) then
            if self:processModuleCallback(CALLBACK_ONSELL, cid, itemid, subType, amount, ignoreCap, inBackpacks) then
                --
            end
        end
    end

    -- Handles onTradeRequest events. If you wish to handle this yourself, use the CALLBACK_ONTRADEREQUEST callback.
    function NpcHandler:onTradeRequest(cid)
        local callback = self:getCallback(CALLBACK_ONTRADEREQUEST)
        if callback == nil or callback(cid) then
            if self:processModuleCallback(CALLBACK_ONTRADEREQUEST, cid) then
                return true
            end
        end
        return false
    end

    -- Handles onThink events. If you wish to handle this yourself, please use the CALLBACK_ONTHINK callback.
    function NpcHandler:onThink()
        local callback = self:getCallback(CALLBACK_ONTHINK)
        if callback == nil or callback() then
            if NPCHANDLER_TALKDELAY == TALKDELAY_ONTHINK then
                for cid, talkDelay in pairs(self.talkDelay) do
                    if talkDelay.time ~= nil and talkDelay.message ~= nil and os.time() >= talkDelay.time then
                        selfSay(talkDelay.message, cid, talkDelay.publicize and true or false)
                        self.talkDelay[cid] = nil
                    end
                end
            end

            if self:processModuleCallback(CALLBACK_ONTHINK) then
                for pos, focus in pairs(self.focuses) do
                    if focus ~= nil then
                        if not self:isInRange(focus) then
                            self:onWalkAway(focus)
                        elseif self.talkStart[focus] ~= nil and (os.time() - self.talkStart[focus]) > self.idleTime then
                            self:unGreet(focus)
                        else
                            self:updateFocus()
                        end
                    end
                end
            end
        end
    end

    -- Tries to greet the player with the given cid.
    function NpcHandler:onGreet(cid)
        if self:isInRange(cid) then
            if not self:isFocused(cid) then
                self:greet(cid)
                return
            end
        end
    end

    -- Simply calls the underlying unGreet function.
    function NpcHandler:onFarewell(cid)
        self:unGreet(cid)
    end

    -- Should be called on this npc's focus if the distance to focus is greater then talkRadius.
    function NpcHandler:onWalkAway(cid)
        if self:isFocused(cid) then
            local callback = self:getCallback(CALLBACK_CREATURE_DISAPPEAR)
            if callback == nil or callback() then
                if self:processModuleCallback(CALLBACK_CREATURE_DISAPPEAR, cid) then
                    local msg = self:getMessage(MESSAGE_WALKAWAY)

                    local player = Player(cid)
                    local playerName = player and player:getName() or -1
                    local playerSex = player and player:getSex() or 0

                    local parseInfo = { [TAG_PLAYERNAME] = playerName }
                    local message = self:parseMessage(msg, parseInfo)

                    local msg_male = self:getMessage(MESSAGE_WALKAWAY_MALE)
                    local message_male = self:parseMessage(msg_male, parseInfo)
                    local msg_female = self:getMessage(MESSAGE_WALKAWAY_FEMALE)
                    local message_female = self:parseMessage(msg_female, parseInfo)
                    if message_female ~= message_male then
                        if playerSex == PLAYERSEX_FEMALE then
                            selfSay(message_female)
                        else
                            selfSay(message_male)
                        end
                    elseif message ~= "" then
                        selfSay(message)
                    end
                    self:resetNpc(cid)
                    self:releaseFocus(cid)
                end
            end
        end
    end

    -- Returns true if cid is within the talkRadius of this npc.
    function NpcHandler:isInRange(cid)
        local distance = Player(cid) ~= nil and getDistanceTo(cid) or -1
        if distance == -1 then
            return false
        end

        return distance <= self.talkRadius
    end

    -- Resets the npc into its initial state (in regard of the keywordhandler).
    --    All modules are also receiving a reset call through their callbackOnModuleReset function.
    function NpcHandler:resetNpc(cid)
        if self:processModuleCallback(CALLBACK_MODULE_RESET) then
            self.keywordHandler:reset(cid)
        end
    end

    function NpcHandler:cancelNPCTalk(events)
        for aux = 1, #events do
            stopEvent(events[aux].event)
        end
        events = nil
    end

    function NpcHandler:doNPCTalkALot(msgs, interval, pcid)
        if self.eventDelayedSay[pcid] then
            self:cancelNPCTalk(self.eventDelayedSay[pcid])
        end

        self.eventDelayedSay[pcid] = {}
        local ret = {}
        for aux = 1, #msgs do
            self.eventDelayedSay[pcid][aux] = {}
            doCreatureSayWithDelay(getNpcCid(), msgs[aux], TALKTYPE_SAY, ((aux-1) * (interval or 4000)) + 700, self.eventDelayedSay[pcid][aux], pcid)
            ret[#ret + 1] = self.eventDelayedSay[pcid][aux]
        end
        return(ret)
    end

    -- Makes the npc represented by this instance of NpcHandler say something.
    --    This implements the currently set type of talkdelay.
    --    shallDelay is a boolean value. If it is false, the message is not delayed. Default value is true.
    function NpcHandler:say(message, focus, publicize, shallDelay, delay)
        if type(message) == "table" then
            return self:doNPCTalkALot(message, delay or 6000, focus)
        end

        if self.eventDelayedSay[focus] then
            self:cancelNPCTalk(self.eventDelayedSay[focus])
        end

        local shallDelay = not shallDelay and true or shallDelay
        if NPCHANDLER_TALKDELAY == TALKDELAY_NONE or shallDelay == false then
            selfSay(message, focus, publicize and true or false)
            return
        end

        stopEvent(self.eventSay[focus])
        self.eventSay[focus] = addEvent(function(npcId, message, focusId)
            local npc = Npc(npcId)
            if npc == nil then
                return
            end
            local player = Player(focusId)
            if player then
                npc:say(message:gsub("|PLAYERNAME|", player:getName()), TALKTYPE_SAY)
            end
        end, self.talkDelayTime * 1000, Npc():getId(), message, focus)
    end
end

 

[Infernum]

like he said change it to addFocus in your npc file
shows that the function is indeed addFocus and not AddFocus

 

[armyman]

Now, u say hi, the npc talk "bye,bye. "

and i got this error in console

Lua Script Error: [Npc interface]
data/npc/scripts/aldee.lua:onCreatureSay
data/npc/scripts/aldee.lua:13: attempt to call method 'AddQueue' (a nil value)
stack traceback:
        [C]: in function 'AddQueue'
        data/npc/scripts/aldee.lua:13: in function 'callback'
        data/npc/lib/npcsystem/npchandler.lua:401: in function 'onCreatureSay'
        data/npc/scripts/aldee.lua:7: in function <data/npc/scripts/aldee.lua:7>

 

[Infernum]

Now, u say hi, the npc talk "bye,bye. "

and i got this error in console

Lua Script Error: [Npc interface]
data/npc/scripts/aldee.lua:onCreatureSay
data/npc/scripts/aldee.lua:13: attempt to call method 'AddQueue' (a nil value)
stack traceback:
        [C]: in function 'AddQueue'
        data/npc/scripts/aldee.lua:13: in function 'callback'
        data/npc/lib/npcsystem/npchandler.lua:401: in function 'onCreatureSay'
        data/npc/scripts/aldee.lua:7: in function <data/npc/scripts/aldee.lua:7>

same thing
AddQueue to addQueue

 

[armyman]

there isn't the addQueue or addQueue on npchandler

I got other npc script and npc.xml of other server, now work without errors

 

[Xikini]

For anyone who stumbles upon this thread..
When you get a line like this

.../aldee.lua:13: attempt to call method 'AddQueue' (a nil value)

Where it says '(a nil value)', this means that the thing being called in a nil value.

A nil value, means that it does not exist.

More often then not, it's a simply a case of mispelling the function name.
Sometimes though, it may be a missing or renamed function is your server.

In the case above, it was a spelling mistake the first time, and then missing or renamed functions for the other two.

npcHandler:AddFocus
npcHandler:addFocus -- correct

npcHandler:addQueue
-- this function is not in the server or is differently named

npcHandler:removeFocus
-- this function is not in the server or is differently named

 

[armyman]

but in this server no have the function addQueue and removeFocus on npchandler

 

[Xikini]

but in this server no have the function addQueue and removeFocus on npchandler

Sorry about that.
Edited my above post to be more correct.