[C++] Descriptors dumper & Find descriptor offsets

[scimmy]

I'm trying to fix the descriptor dump for classic with this. So far I've got it correctly looping the functions using the pattern:

40 53 48 83 EC ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ? E8 ? ? ? ?

Mapping to MirrorInitializeStaticDescriptors

But I'm having issues getting it to actually retrieve the correct number of descriptors for each function. For example:



enum CGContainerData
{
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerData_ = CGItemDataEnd + 0, // size 0 flags: MIRROR_NONE
CGContainerDataEnd = CGItemDataEnd + 0
};

When IDA shows it as two.

You don't really know the total count of the descriptors for each object type. Just keep iterating until you reach the last known descriptor.

GitHub - notscimmy/wow_descriptor_dumper

[oiramario]

2.5.4.42873, the descriptor disappeared...

[Razzue]

2.5.4.42873, the descriptor disappeared...

Yup, tbc classic object manager and unit/item/object layouts now match retails!

You can start finding most relevant info(stats etc) at UnitBase + 0xD000 and onwards. Though there's also lost of fields a lot lower than that. Have fun

[yezack]

Yup, tbc classic object manager and unit/item/object layouts now match retails!

You can start finding most relevant info(stats etc) at UnitBase + 0xD000 and onwards. Though there's also lost of fields a lot lower than that. Have fun

Razzue sama, some offsets get by your Wow-Dumper‘s seems not correct in TBC 4.5.4.42873。
I got this from the Dumper:

        public class Object_Manager
        {
            
            public const int Zone_ID = 0x300905F;
            
            public const int Names = 0x2A15D10;
            
            public const int Base = 0x2B98900;
            
            public const int Cooldown = 0x2B346B0;
        }

But,it not works. maybe the "Base" Pattern is changed?
Pattern = "48 8B 1D ?? ?? ?? ?? 48 85 DB 74 ?? 80 3D ?? ?? ?? ?? ?? 74 ?? 48 8D 0D ?? ?? ?? ??"
Or maybe the object manager Descriptor stuct changed?

[Razzue]

Razzue sama, some offsets get by your Wow-Dumper‘s seems not correct in TBC 4.5.4.42873。
I got this from the Dumper:

        public class Object_Manager
        {
            
            public const int Zone_ID = 0x300905F;
            
            public const int Names = 0x2A15D10;
            
            public const int Base = 0x2B98900;
            
            public const int Cooldown = 0x2B346B0;
        }

But,it not works. maybe the "Base" Pattern is changed?
Pattern = "48 8B 1D ?? ?? ?? ?? 48 85 DB 74 ?? 80 3D ?? ?? ?? ?? ?? 74 ?? 48 8D 0D ?? ?? ?? ??"
Or maybe the object manager Descriptor stuct changed?

Offsets are fine, the way the object manager is accessed has changed.


[Game + Offset] +0x8] => Active object array
for(var I = 0; I < (int)[Game+Offset]; I++)

var entry => Array + I * 0x8;
Entry GUID => Entry + 0x8
Object pointer => Entry + 0x18

Manager type => Object Pointer + 0x10

Should be enough to get you started.

Keep in mind some pointers in Entry+0x0 will NOT be empty, those are also manager entries.

Will post some code when I get home.

There are NO more descriptor fields as they used to be.

[yezack]

Offsets are fine, the way the object manager is accessed has changed.


[Game + Offset] +0x8] => Active object array
for(var I = 0; I < (int)[Game+Offset]; I++)

var entry => Array + I * 0x8;
Entry GUID => Entry + 0x8
Object pointer => Entry + 0x18

Manager type => Object Pointer + 0x10

Should be enough to get you started.

Keep in mind some pointers in Entry+0x0 will NOT be empty, those are also manager entries.

Will post some code when I get home.

There are NO more descriptor fields as they used to be.

thans i got it, [Game+Offset] is object.count, [[Game + Offset] +0x8] is object.list

[Razzue]

Game + offset => Max count**
Game + offset + 0x10 or something close is active object count

[yezack]

Game + offset => Max count**
Game + offset + 0x10 or something close is active object count

i make some code , i guess Object pointer is point of object struct(i named it cur_obj).
then i read these:
[cur_obj+ WOW_OFFSETS.Object.Guid, 16],
[cur_obj+ WOW_OFFSETS.Object.Descriptor, 8]
but they seems incorrect.
it seems offset of object struct also changed(i guess)

[Razzue]

For the paste monkeys

public const int Array = 0x8;
public const int ObjGuid = 0x8;
public const int EntGuid = 0x18;
public const int ObjType = 0x10;

internal static bool TryUpdate()
{
    try
    {
        lock (CacheLock)
        {
            var count = Reader.Read<uint>(Reader.Read<IntPtr>(Client.Base + Offsets.ObjectManager.Base));
            var array = Reader.Read<IntPtr>(Reader.Read<IntPtr>(Client.Base + Offsets.ObjectManager.Base) + Offsets.ObjectManager.Array);
            if (count == 0 || IntPtr.Zero == array)
                throw new MemoryException("Could not get object manager array.");
            

            if (null == Entries) Entries = new Dictionary<GUID, CacheEntry>();
            var entrycount = Entries.Count;

            for (var i = 0; i < count; i++)
            {
                var ptr = Reader.Read<IntPtr>(array + (i * 0x8));
                if (ptr == IntPtr.Zero) continue;

                while (ptr != IntPtr.Zero)
                {
                    var entry = Reader.Read<IntPtr>(ptr + 0x18);
                    var guid = Reader.Read<GUID>(ptr + Offsets.ObjectManager.ObjGuid);

                    if (!guid.IsEmpty())
                    {
                        if (Entries.ContainsKey(guid))
                            Entries[guid].Updated = true;
                        else Entries.Add(guid, new CacheEntry { Base = entry, Updated = true });
                    }

                    ptr = Reader.Read<IntPtr>(ptr + 0x0);
                }
            }

            var keys = Entries.Keys.ToList();
            foreach (var key in keys)
            {
                if (Entries[key].Updated)
                    Entries[key].Updated = false;
                else Entries.Remove(key);
            }

            return null != Entries && Entries.Count > 0;
        }
    }
    catch (MemoryException) { return false; }
}

ObjectName       => [[Entry + 0x148] + 0xE0]
UnitName         => [[Entry + 0x3A0] + 0xF8] // Npc only
UnitPosition     => [[Entry + 0xF0] + 0x20] // Entry + 0x148 works just as well
UnitHealth       => [Entry + 0xD4E8]
UnitHealthMax    => [Entry + 0xD4E8]
UnitPower1to7    => [Entry + 0xD7B8] to [Entry + 0xD7D0]
UnitPower1to7Max => [Entry + 0xD7D4] to [Entry + 0xD7E8]

[yezack]

For the paste monkeys

public const int Array = 0x8;
public const int ObjGuid = 0x8;
public const int EntGuid = 0x18;
public const int ObjType = 0x10;

internal static bool TryUpdate()
{
    try
    {
        lock (CacheLock)
        {
            var count = Reader.Read<uint>(Reader.Read<IntPtr>(Client.Base + Offsets.ObjectManager.Base));
            var array = Reader.Read<IntPtr>(Reader.Read<IntPtr>(Client.Base + Offsets.ObjectManager.Base) + Offsets.ObjectManager.Array);
            if (count == 0 || IntPtr.Zero == array)
                throw new MemoryException("Could not get object manager array.");
            

            if (null == Entries) Entries = new Dictionary<GUID, CacheEntry>();
            var entrycount = Entries.Count;

            for (var i = 0; i < count; i++)
            {
                var ptr = Reader.Read<IntPtr>(array + (i * 0x8));
                if (ptr == IntPtr.Zero) continue;

                while (ptr != IntPtr.Zero)
                {
                    var entry = Reader.Read<IntPtr>(ptr + 0x18);
                    var guid = Reader.Read<GUID>(ptr + Offsets.ObjectManager.ObjGuid);

                    if (!guid.IsEmpty())
                    {
                        if (Entries.ContainsKey(guid))
                            Entries[guid].Updated = true;
                        else Entries.Add(guid, new CacheEntry { Base = entry, Updated = true });
                    }

                    ptr = Reader.Read<IntPtr>(ptr + 0x0);
                }
            }

            var keys = Entries.Keys.ToList();
            foreach (var key in keys)
            {
                if (Entries[key].Updated)
                    Entries[key].Updated = false;
                else Entries.Remove(key);
            }

            return null != Entries && Entries.Count > 0;
        }
    }
    catch (MemoryException) { return false; }
}

ObjectName       => [[Entry + 0x148] + 0xE0]
UnitName         => [[Entry + 0x3A0] + 0xF8] // Npc only
UnitPosition     => [[Entry + 0xF0] + 0x20] // Entry + 0x148 works just as well
UnitHealth       => [Entry + 0xD4E8]
UnitHealthMax    => [Entry + 0xD4E8]
UnitPower1to7    => [Entry + 0xD7B8] to [Entry + 0xD7D0]
UnitPower1to7Max => [Entry + 0xD7D4] to [Entry + 0xD7E8]

if (Entries.ContainsKey(guid))
Entries[guid].Updated = true;
else Entries.Add(guid, new CacheEntry { Base = entry, Updated = true });

Entries[key].updated is always true. i can't understand

it likes ((entries) in chains)in a list, but some entries will overwrite the olds

[Razzue]

if (Entries.ContainsKey(guid))
Entries[guid].Updated = true;
else Entries.Add(guid, new CacheEntry { Base = entry, Updated = true });

Entries[key].updated is always true. i can't understand

it likes ((entries) in chains)in a list, but some entries will overwrite the olds

It quite clearly removes any entries that have NOT been updated, and sets Entry.Updated to false at the end of the function. This does NOT over write any existing entries (aside from setting .Updated to true) as entries are stored by GUID (a "Globally Unique ID".. pay specific attention to the "UNIQUE" part ;P)

[Tirthankara]

ObjPosition => [Entry + 0x108] or + 0x180