Making NPC sell items for other then gold.

[Dekoalaa]

Is it possible to change an npc to sell an item for another item?

Lets say the npc sells ropes, and i got a torch would this be possible to make the npc sell me the rope in exchange for the torch?

 

[Infernum]

you can do it with talkstates, and buy it just by talking with the npc by saying keywords
but if you want to do it in trade window it requires a source edit to change gold to something else

 

[Znote]

Not sure if you can do that over the trade window, but should be possible with dialogues.
Here is an old script snippet I did on TFS 0.4:

if getPlayerStorageValue(cid,1234) == 1 then
    if(getPlayerItemCount(cid, 3976) >= 30) then
        doPlayerRemoveItem(cid, 3976, 30)
        doPlayerAddItem(cid, 2148,10)
        setPlayerStorageValue(cid,1234,2)
        selfSay('Thanks, you are truly one trustworthy player! I will make sure to tell about your good deeds to other merchants! If you want, keep delivering worms to me, and I have a {special bonus} for you!', cid)  
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, 'You have gained 10 golden coins.')
    else  
        selfSay('Huh? This was not the deal, please come back with 30 worms!')
    end  
else
    if(getPlayerItemCount(cid, 3976) >= 30) then
        doPlayerRemoveItem(cid, 3976, 30)
        doPlayerAddItem(cid, 2148,10)
        setPlayerStorageValue(cid,1234,(getPlayerStorageValue(cid,1234)+1))
        selfSay('Thank you! As always, here are your 10 gold coins!', cid)  
        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, 'You have gained 10 golden coins.')
    else  
        selfSay('You can get worms from NPCs in twinpass trading camp. Feel free to come back anytime and deliver {30 worms} to me, and you will be paid 10 gold coins! Hey! If you deliver 30 worms to me 5 times, I have a {special bonus} for you!', cid)
    end  
end

 

[Dekoalaa]

yeah, i did a talkaction script for it right now, gonna try that script, thanks.