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Packet format for selling item to NPC
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cuongbeo88 Offline
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Version: 1.4.2.140
Post: #11
RE: Packet format for selling item to NPC

Bump
07-05-2015 15:14 PM
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cuongbeo88 Offline
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Version: 1.4.2.140
Post: #12
RE: Packet format for selling item to NPC

@kerberos464, @Clockman, @Sakaszli can you help ?
(This post was last modified: 07-06-2015 13:40 PM by cuongbeo88.)
07-06-2015 13:40 PM
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Sakaszli Offline
I'm too pro to be pro.
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Posts: 1,189
Joined: Jan 2011
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Version: 1.4.2.134.5b
Post: #13
RE: Packet format for selling item to NPC

    JAVA Programming
@Override
	protected void readImpl()
	{
 _listId = readD();
 int size = readD();
 if ((size <= 0) || (size > Config.MAX_ITEM_IN_PACKET) || ((size * BATCH_LENGTH) != _buf.remaining()))
 {
 return;
 }
 
 _items = new ArrayList<>(size);
 for (int i = 0; i < size; i++)
 {
 int objectId = readD();
 int itemId = readD();
 long count = readQ();
 if ((objectId < 1) || (itemId < 1) || (count < 1))
 {
 _items = null;
 return;
 }
 _items.add(new UniqueItemHolder(itemId, objectId, count));
 }
	}




so as you can see format is like:
D - items list ID (server sends it when you open that window with items to buy)
D - count of iteems to buy
repeat X times :
D - item id from list
D - object id
Q - count
:end
07-06-2015 13:56 PM
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 Reputed by : cuongbeo88(+2)
kerberos464 Offline
Bug revealer

Posts: 1,539
Joined: Jun 2012
Reputation: 576
Version: 1.4.3.143
Post: #14
RE: Packet format for selling item to NPC

ok, i will help you a bit, but i will not post any code, sorry.

1. this impossible to do by script, and only possible with plugin, because there is a 'list id' parameter in the packet that you send for selling item, and this value comes from server after you talked to npc but BEFORE you are trying to sell items.

2. value that you called D[1] is that 'list id'.

3. actual packet structure is:

37 - id
XX XX XX XX - list id
XX XX XX XX - list size (how many different items we are selling)

block start (
XX XX XX XX - object id of item
XX XX XX XX - display id of item
XX XX XX XX XX XX XX XX - numbers of items
) block end

this block repeats as many times as you specified in "list size".

haha Sakaszli was first.

requesting forum add-on, that notifies about new answers while i'm writing my answer Smile

Everything is possible. The impossible just takes longer.
(This post was last modified: 07-06-2015 14:03 PM by kerberos464.)
07-06-2015 14:00 PM
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 Reputed by : cuongbeo88(+2) , snapit(+2)
mandymua Offline
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Version: 1.4.2.142
Post: #15
RE: Packet format for selling item to NPC

Thanks Sakaszli and Kerberos, that was extremely helpful! Big Grin
07-07-2015 05:29 AM
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goanga1 Offline
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Posts: 436
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Version: 1.4.2.142
Post: #16
RE: Packet format for selling item to NPC

(07-07-2015 05:29 AM)mandymua Wrote:  Thanks Sakaszli and Kerberos, that was extremely helpful! Big Grin

id you make a working plugin code?

Chonos Shop
(closed atm)

accepting paypal
For more info contact me on Skype : michail.gh

Info here: http://forum.l2tower.eu/thread-wts-lvl-9...aia-chonos
07-07-2015 09:11 AM
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mandymua Offline
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Posts: 37
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Version: 1.4.2.142
Post: #17
RE: Packet format for selling item to NPC

Kerberos' post actually already contains almost all of the information you need to make it work. I will give you the last piece that Kerberos didn't mention. That is the packet with the listID is:

packet:GetID() == 0xFE and packet:GetSubID() == 184

packet:SetOffset(12)
listID = packet:ReadInt(4)
07-08-2015 00:51 AM
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Vinter Offline
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Posts: 299
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Version: 1.4.1.128
Post: #18
RE: Packet format for selling item to NPC

Make the plugin, get hte info, build the packet with commands through script, easy peasy.
07-08-2015 23:33 PM
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