[C#][Copy/Pasta] Out of process DBC reading

[counted]

Thanks for the help. Hexrays is sweet, wish i could afford it. Even though I should have figured that one out on my own.

For those who are working with this here is an example of the usage to get a spell name.

14177 is the spellID for Cold Blood.

GWoWDb dbcReader = new GWoWDb();
GWoWDb.Row dbcRow = dbcReader[ClientDb.Spell].GetLocalizedRow(14177);
if ( dbcRow.IsValid)
{
   SpellEntry theSpell = new SpellEntry();
   theSpell = dbcRow.GetStruct<SpellEntry>();
   string theSpellName = GObjectList.WowReader.ReadASCIIString(theSpell.SpellName, 256);
}
else
{
   theSpellName = "invalid";
}

[counted]

I was checking out my code on a practice dummy and it had Aura 7056 on it which returned a IntPtr.Zero value into lpRow.

I added a check before doing the ClientDB unpack for valid lpRow

  public static void GetLocalizedRow(IntPtr clientDb, int recordId, out IntPtr buffer)
        {
            clientDb = (IntPtr) (clientDb.ToInt32() - 0x18);
            var header = Memory.ReadStruct<WoWDb.WoWClientDb>(clientDb);
            buffer = IntPtr.Zero;
            if (recordId >= header.MinIndex && recordId <= header.MaxIndex)
            {
                var lpRow = Memory.Read<IntPtr>((IntPtr) (header.Rows.ToInt32() + (4 * (recordId - header.MinIndex))));
                if(lpRow != IntPtr.Zero)
                {
                     if (Memory.Read<byte>((IntPtr) WOW_USE_SPELL_UNPACK) == 1)
                     {
                         ClientDbUnpack(lpRow, 0x2C0u, out buffer);
                     }
                     else
                     {
                         byte[] data = Memory.ReadBytes(lpRow, 0x2C0);
                         buffer = Marshal.AllocHGlobal(0x2C0);
                         Marshal.Copy(data, 0, buffer, 0x2C0);
                     }
                 }
            }
        }

[miceiken]

Do I need to use ClientDb_Unpack when using GetLocalizedRow injected? I think I remember Apoc mentioning that GetLocalizedRow took care of that?

[Apoc]

After some more deliberation; I've come to realize that it's not 'GetLocalizedRow'. It's actually SpellDB__Unpack. Since only Spell.dbc uses that func. :P

So yea, there are likely other unpack funcs for 'large' DBCs, but I couldn't tell you which ones, because I don't rightly care!

And no; if you're injected and calling SpellDB_Unpack, then you don't need to worry about it.

[miceiken]

I see, but does GetLocalizedRow call Unpack internally or do I have to do it externally?

I am refering to: PyMode/Client/ClientDb.cs at master from Kryso's PyMode - GitHub - doesn't work with
GetLocalizedRow: 0x004CFD20
Spell.dbc Ptr: 0x00A751FC

[Flushie]

You're a moron.

Haha I lol'd classes aren't public.... TROLLLLLOLOLOL

[Cypher]

After some more deliberation; I've come to realize that it's not 'GetLocalizedRow'. It's actually SpellDB__Unpack. Since only Spell.dbc uses that func. :P

So yea, there are likely other unpack funcs for 'large' DBCs, but I couldn't tell you which ones, because I don't rightly care!

And no; if you're injected and calling SpellDB_Unpack, then you don't need to worry about it.

I told you that ages ago and you never listened you jew.