Eclipse Stable: fixing the "selling negative items" glitch?

[Firestar]

Not sure if this is known or not, but if you sell a negative amount of an item, like… let's say -58, you'll apparently get that many of said item. Yes, you can clone items like this...

Is there a way to fix this? If not, my game will have to be without a selling system forever...

[emblem]

Are you proficient in source editing, if so I can show you how to fix it.

**Edit:** Wait, is this a problem with the Engine itself?

[Krumelz]

Hello ^^, i remember i had the same problem a few weeks ago.
To fix it, open the source [client side] and find:

```
AMT = InputBox("How many " & Item(GetPlayerInvItemNum(MyIndex, (lstSellItem.ListIndex + 1))).name & " would you like to sell?", "Sell " & Trim$(Item(GetPlayerInvItemNum(MyIndex, (lstSellItem.ListIndex + 1))).name), 0)
                        If IsNumeric(AMT) Then
                            packet = "sellitem" & SEP_CHAR & snumber & SEP_CHAR & ItemNum & SEP_CHAR & ItemSlot & SEP_CHAR & AMT & END_CHAR
                            Call SendData(packet)
                            lblSold.Caption = "You sold " & AMT & " " & Trim$(Item(ItemNum).name) & "s ."
                        End If

```
its in the frmSellItem.

Now Replace the line

```
If IsNumeric(AMT) Then

```
with

```
If IsNumeric(AMT) and AMT > 0 Then

```
Thats the way i fixed it ^^

yours sincerely,
krumelz

[emblem]

I guess it is a source problem.

Thanks for the post, Krumelz. Now I don't have to download stable to fix the problem myself. :D

[Krumelz]

Not a thing ^^

[Firestar]

Wait, a source problem?

I'm doomed.

[emblem]

Give me a second, I'll fix it in a vanilla stable and post the compiled EXE.

Krumelz. I'd recommend adding this fix too, as your way still leaves it open for anyone who knows how to edit packets to duplicate items on your game. :P

**Server:**
In _modHandleData_'s _Sub BlahBlah_.

Find:
```
Public Sub Packet_SellItem(ByVal index As Long, ByVal ShopNum As Long, ByVal ItemNum As Long, ByVal ItemSlot As Long, ByVal ItemAmt As Long)

```
Add After
```
    If ItemAmt <= 0 Then
        Call PlayerMsg(index, "You can not sell an amount lower than 1!", RED)
        Call HackingAttempt(index, "Selling a negative amount of an item.")
        Exit Sub
    End If

```