Lua Another simple error!

[login12]

The problem is that after the NPC speak: "Amazing! You already have the pieces ?!" I type yes, and he does not answer anything more.
I believe the problem is talk_state, i'm not knowing manage with many IF's.
Can anyone exlicar me why this happens?

CODE:

function creatureSayCallback(cid, type, msg)
    if(npcHandler.focus ~= cid) then
        return false
    end
    
    if msgcontains(msg, 'mission') then
    talk_state = 1
        if getPlayerStorageValue(cid, 47999) == 1 then
        npcHandler:say('Thank you in advance! Well I need you to bring me 3 pieces so that I can fix the electric starting... Well, the items are: (parafuse of adamantium), (motorcycle manual), (special toolbox). Back here, when you found this.')
        doSendMagicEffect(getThingPos(cid),10)
        doPlayerSendTextMessage(cid, TALKTYPE_ORANGE, "You started now, Dead'cycle quest. Good luck!")
        doPlayerSendTextMessage(cid, TALKTYPE_ORANGE, "You can use the command: !deadcycle quest, if you forget what items you need found!")
        setPlayerStorageValue(cid, 47999, -1)
        talk_state = 1
        elseif talk_state == 1 and msgcontains(msg, 'mission') and getPlayerStorageValue(cid, 47999) == -1 then
        npcHandler:say('Amazing! You already have the pieces?!', 1)
            if talk_state == 1 and msgcontains(msg, 'yes') then
            npcHandler:say('Its so amazing!', 1)
            talk_state = 0
            end
        
        end
    return false
    end
    return true   
end

 

[login12]

@I fix it.
the erro was because i put the condition in wrong place, and so many noobs ends and returns...