Task error

[bybbzan]

Hello.

Im using this script, and get this error, can someone help me fix it?

local STORAGE = 18008

local TALKSTATE_PICK = 1
local TALKSTATE_RESET = 2
local TALKSTATE_COMPLETE = 3

local TASKSTATE_COMPLETED = 1
local TASKSTATE_BOSS = 2
local TASKSTATE_FINALIZED = 3

local tasks = {
    ['dragons'] = {storage = 18009, kills = 50, experience = 0, once = false, items = {{2160, 10}}},
    ['giant spiders'] = {storage = 18010, kills = 10, experience = 10000, once = true, items = {}},
    ['dragon lords'] = {storage = 18011, kills = 10, experience = 0, once = true, items = {}},
    ['hydras'] = {storage = 18012, kills = 50, experience = 0, once = false, items = {{2160, 25}}},
    ['grim reapers'] = {storage = 18013, kills = 100, experience = 2000000, once = true, items = {{2160, 30}}},
    ['demons'] = {storage = 18014, kills = 100, experience = 0, once = false, items = {{2160, 40}}},   
    ['undead dragons'] = {storage = 18015, kills = 10, experience = 0, once = true, items = {}}
}

function listTasks()
    local output, list = '', {}

    for k, v in ipairs(tasks) do
        table.insert(list, k)
    end

    for k, v in ipairs(list) do
        if k == 1 then
            output = '{'.. v .. '}'
        elseif k == #list then
            output = output .. ' and {'.. v ..'}'
        else
            output = output ..', {'.. v ..'}'
        end
    end

    return output
end

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

function onCreatureAppear(cid)
    npcHandler:onCreatureAppear(cid)
end

function onCreatureDisappear(cid)
    npcHandler:onCreatureDisappear(cid)

    if talkState[cid] then
        talkState[cid] = nil
    end
end

function onCreatureSay(cid, type, msg)
    npcHandler:onCreatureSay(cid, type, msg)
end

function onThink()
    if not turned then
        selfTurn(SOUTH)
        turned = true
    end

    npcHandler:onThink()
end

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

shop:addBuyableItem({'demon backpack'}, 10518, 1000, 1, 'Demon Backpack')

shop:addSellableItem({'hydra head'}, 11199, 600, 'Hydra Head')
shop:addSellableItem({'cyclops trophy'}, 7398, 500, 'Cyclops Trophy')
shop:addSellableItem({'minotaur trophy'}, 7401, 500, 'Minotaur Trophy')
shop:addSellableItem({'deer trophy'}, 7397, 1000, 'Deer Trophy')
shop:addSellableItem({'lion trophy'}, 7400, 1000, 'Lion Trophy')
shop:addSellableItem({'wolf trophy'}, 7394, 1000, 'Wolf Trophy')
shop:addSellableItem({'behemoth trophy'}, 7396, 20000, 'Behemoth Trophy')
shop:addSellableItem({'demon trophy'}, 7393, 40000, 'Demon Trophy')
shop:addSellableItem({'dragon lord trophy'}, 7399, 10000, 'Dragon Lord Trophy')

function creatureSayCallback(cid, type, msg)
    if not npcHandler:isFocused(cid) then
        return false
    end

    if msgcontains(msg, 'task') then
        if getCreatureStorage(cid, STORAGE) == EMPTY_STORAGE then
            local list = listTasks()
            selfSay('You can start one of the following tasks: {Dragons}, {Giant Spiders}, {Dragon Lords}, {Hydras}, {Grim Reapers}, {Demons} and {Undead Dragons}.', cid)
            selfSay('You can also make these: {Juggernauts}, {Hands}, {Dark Torturers} and {Phantasms}. But you can make them only once.', cid)
            selfSay('To start a task, simply type one of highlighted keywords, and remember - you can\'t start more than one task at same time.', cid)
            talkState[cid] = TALKSTATE_PICK
        else
            selfSay('You are currently assigned a task. Would you like to dismiss your current task and begin another one?', cid)
            talkState[cid] = TALKSTATE_RESET
        end
    elseif talkState[cid] == TALKSTATE_RESET then
        if msgcontains(msg, 'yes') then
            doCreatureSetStorage(cid, STORAGE, EMPTY_STORAGE)

            for _, v in ipairs(tasks) do
                doCreatureSetStorage(cid, v.storage, EMPTY_STORAGE)
            end

            selfSay('Your current task has been restarted, now you can choose another one, please say {task} to see list of available tasks.', cid)
        else
            selfSay('No then...', cid)
        end

        talkState[cid] = nil
    elseif talkState[cid] == TALKSTATE_PICK then
        local task = tasks[msg:lower()]

        if task then
            if getCreatureStorage(cid, task.storage) == task.kills + TASKSTATE_FINALIZED then
                selfSay('This task has been already finalized and you can\'t pick it anymore.', cid)
            else
                doCreatureSetStorage(cid, STORAGE, 1)
                doCreatureSetStorage(cid, task.storage, 0)
                selfSay('You just started the {'.. msg:lower():gsub('%a', string.upper, 1) ..'} task. You have to kill '.. task.kills ..' of '.. msg:lower() ..'. Come back and ask about {complete} when you are done.', cid)
            end
        else
            selfSay('It does seem like you don\'t understand me, I told you to pick task from list.', cid)
        end

        talkState[cid] = nil
    elseif msgcontains(msg, 'complete') then
        if getCreatureStorage(cid, STORAGE) == EMPTY_STORAGE then
            selfSay('You aren\'t doing any task at the moment, if you would like to start one - type {task}.', cid)
        else
            selfSay(' I forgot, which task did you just complete?', cid)
            talkState[cid] = TALKSTATE_COMPLETE
        end
    elseif talkState[cid] == TALKSTATE_COMPLETE then
        local task = tasks[msg:lower()]

        if task then
            local kills = getCreatureStorage(cid, task.storage)

            if kills <= task.kills then
                selfSay('You have to kill '.. task.kills ..' '.. msg:lower() ..' in order to complete the {'.. msg:lower() ..'} task, you have killed '.. kills ..' '.. msg:lower():gsub('%a', string.upper, 1) ..'.', cid)
            elseif kills == task.kills + TASKSTATE_COMPLETED then
                local msg = 'Congratulations! You have completed the {'.. msg:lower():gsub('%a', string.upper, 1) ..'} task. You receive {access to magic forcefield}'

                if task.experience > 0 then
                    doPlayerAddExperience(cid, task.experience)
                    msg = msg .. ' and {'.. task.experience ..' experience points}'
                end

                if #task.items > 0 then
                    msg = msg ..' and following items'

                    for k, v in ipairs(task.items) do
                        doPlayerAddItem(cid, v[1], v[2])
                        if k == 1 then
                            msg = msg ..' {'.. getItemInfo(v[1]).name ..'}'
                        else
                            msg = msg ..', {'.. getItemInfo(v[1]).name ..'}'
                        end
                    end
                end

                msg = msg ..' as a reward!'

                doCreatureSetStorage(cid, task.storage, task.kills + TASKSTATE_BOSS)
                doSendMagicEffect(getThingPosition(cid), CONST_ME_GIFT_WRAPS)
                selfSay(msg, cid)

                talkState[cid] = nil

                if not __achv.check(cid, 8) then
                    __achv.set(cid, 8, 1)
                end
            elseif kills == task.kills + TASKSTATE_BOSS then
                selfSay('You have already reported in about that task and received access to magic forcefield, go and kill boss.', cid)
            elseif kills == task.kills + TASKSTATE_FINALIZED then
                selfSay('This task has been already finalized and you can\'t pick it anymore.', cid)
            end
        else
            selfSay('There\'s no task named {'.. msg:lower() ..'}, please remind yourself what task you have started before or type {task} to see list of available tasks.', cid)
        end

        talkState[cid] = nil
    end

    return true
end

npcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, creatureSayCallback)
npcHandler:setMessage(MESSAGE_GREET, 'Hello, |PLAYERNAME|! I need someone to fufill a special {task} for me. If you have completed a task, please say {complete}, then the name of the task.')
npcHandler:addModule(FocusModule:new())

[9:54:12.369] [Error - NpcScript Interface]
[9:54:12.372] data/npc/scripts/task.lua:onCreatureSay
[9:54:12.374] Description:
[9:54:12.375] data/npc/scripts/task.lua:176: attempt to index global '__achv' (a nil value)
[9:54:12.378] stack traceback:
[9:54:12.380]   data/npc/scripts/task.lua:176: in function 'callback'
[9:54:12.382]   data/npc/lib/npcsystem/npchandler.lua:390: in function 'onCreatureSay'
[9:54:12.385]   data/npc/scripts/task.lua:59: in function <data/npc/scripts/task.lua:58>

 

[HalfAway]

data/npc/scripts/task.lua:176: attempt to index global '__achv' (a nil value)

You are missing the __achv functions, either remove them from the script or add them.

 

[bybbzan]

data/npc/scripts/task.lua:176: attempt to index global '__achv' (a nil value)

You are missing the __achv functions, either remove them from the script or add them.

Hmm alright, now i removed the function.
Shouldnt this work along with that "task" script?
If i get the correct storage.
It just tells me "You don't have any required quests completed to access this portal." even tho i finished dragon lords/giant spiders

local config = {
   [1] = {x_storage = 11111, x_storage_value = 1, teleport_pos = {x = 995, y = 1000, z = 6}, boss_name = "the old widow", boss_position = {x = 908, y = 902, z = 7}, boss_chamber_top_left_pos = {x = 898, y = 898, z = 7}, boss_chamber_bottom_right_pos = {x = 910, y = 906, z = 7}},
   [2] = {x_storage = 11111, x_storage_value = 1, teleport_pos = {x = 995, y = 1000, z = 6}, boss_name = "demodras", boss_position = {x = 908, y = 902, z = 7}, boss_chamber_top_left_pos = {x = 898, y = 898, z = 7}, boss_chamber_bottom_right_pos = {x = 910, y = 906, z = 7}},
   [3] = {x_storage = 11111, x_storage_value = 1, teleport_pos = {x = 995, y = 1000, z = 6}, boss_name = "dracola", boss_position = {x = 908, y = 902, z = 7}, boss_chamber_top_left_pos = {x = 898, y = 898, z = 7}, boss_chamber_bottom_right_pos = {x = 910, y = 906, z = 7}}
}

local condition = createConditionObject(CONDITION_INFIGHT)
setConditionParam(condition, CONDITION_PARAM_TICKS, 5000)

function onStepIn(cid, item, position, fromPosition)

   if not isPlayer(cid) then
     return true
   end

   for i = 1, #config do
     if getPlayerStorageValue(cid, config[i].x_storage) == config[i].x_storage_value then
       local count = 0
       local monster = 0
       for t = config[i].boss_chamber_top_left_pos.x, config[i].boss_chamber_bottom_right_pos.x do
         for f = config[i].boss_chamber_top_left_pos.y, config[i].boss_chamber_bottom_right_pos.y do
           for n = config[i].boss_chamber_top_left_pos.z, config[i].boss_chamber_bottom_right_pos.z do
             pos = {x = t, y = f, z = n}
             pid = getTopCreature(pos).uid
             if isPlayer(pid) then
               count = count + 1
             end
             if isMonster(pid) then
               monster = pid
             end
           end
         end
       end
       if count ~= 0 then
         doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "Someone is currently in " .. config[i].boss_name .. "'s chamber. Please wait awhile.")
         doTeleportThing(cid, fromPosition)
         doSendMagicEffect(fromPosition, 10)
         return true
       end
       if monster ~= 0 then
         doRemoveCreature(monster)
       end
       doSendMagicEffect(position, 10)
       doTeleportThing(cid, config[i].teleport_pos)
       doAddCondition(cid, condition)
       local delay = 1000
       for n = 1, 3 do    
         addEvent(doSendMagicEffect, delay, config[i].boss_position, 10)
         delay = delay + 1000
       end
       addEvent(doCreateMonster, 4000, config[i].boss_name:lower(), config[i].boss_position)
       return true
     end
   end
   doPlayerSendTextMessage(cid, MESSAGE_STATUS_CONSOLE_BLUE, "You don't have any required quests completed to access this portal.")
   doTeleportThing(cid, fromPosition)
   doSendMagicEffect(fromPosition, 10)
   return true
end