Firewalker boot npc

[sdog1234]

I made this for a friend. If you like it, just tell me. If not... well, go away.

firebootmaker.lua

local keywordHandler = KeywordHandler:new()
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 creatureSayCallback(cid, type, msg)
    if(not npcHandler:isFocused(cid)) then
        return false
    end

    local talkUser = NPCHANDLER_CONVBEHAVIOR == CONVERSATION_DEFAULT and 0 or cid

    if(msgcontains(msg, 'firewalker') or msgcontains(msg, 'boots') or msgcontains(msg, 'repair')) then
        selfSay('So do you want to repair your worn firewalker boots for 50000 gold coins?', cid)
        talkState[talkUser] = 1
    elseif(msgcontains(msg, 'yes') and talkState[talkUser] == 1) then
        if(getPlayerItemCount(cid, 10022) >= 1) then
            if(doPlayerRemoveMoney(cid, 50000)) then
                local item = getPlayerItemById(cid, true, 10022)
                doTransformItem(item.uid, 9933)
                selfSay('Have fun with your boots.', cid)
            else
                selfSay('Sorry dude, you don\'t have enough gold.', cid)
            end
        elseif(getPlayerItemCount(cid, 10022) >= 1) then
            if(doPlayerRemoveMoney(cid, 50000)) then
                local item = getPlayerItemById(cid, true, 10022)
                doTransformItem(item.uid, 9933)
                selfSay('Have fun with your boots.', cid)
            else
                selfSay('Sorry dude, you don\'t have enough gold.', cid)
            end
        else
            selfSay('Dude, you need worn firewalker boots for me to repair them.', cid)
        end
        talkState[talkUser] = 0
    elseif(msgcontains(msg, 'no') and isInArray({1}, talkState[talkUser])) then
        talkState[talkUser] = 0
        selfSay('Seriously dude? Stop wasting my time and go away.', cid)
    end

    return true
end

npcHandler:setCallback(CALLBACK_MESSAGE_DEFAULT, creatureSayCallback)
npcHandler:addModule(FocusModule:new())

Pyralis.xml

<?xml version="1.0" encoding="UTF-8"?>
<npc name="Pyralis" script="firebootmaker.lua" walkinterval="2000" floorchange="0">
    <health now="100" max="100"/>
    <look type="128" head="94" body="132" legs="114" feet="94" addons="2"/>
    <parameters>
        <parameter key="message_greet" value="What's up, |PLAYERNAME|? Got any boots I can repair?"/>
    </parameters>
</npc>