[C#] Get quests cached information

[JuJuBoSc]

Hi there,

I needed some quests information (mainly quest name localized from it's ID) which is retrieved from the server and cached (like item info) and I think this can help someone else :

            uint oQuestCacheBase = 0x89ADE0;
            uint oFirst = 0x10;
            uint oQuestId = 0xC;
            uint oQuestName = 0xC4;
            uint oQuestDesc = 0x2C4;
            uint oLevel = 0x14;
            uint oRequiresLevel = 0x18;

            uint questPtr = MyWoW.Memory.ReadUInt(oQuestCacheBase + oFirst, "Wow.exe");
            uint firstQuestPtr = questPtr;

            while (questPtr != 0)
            {

                UInt32 QuestId = MyWoW.Memory.ReadUInt(questPtr + oQuestId);
                UInt32 Level = MyWoW.Memory.ReadUInt(questPtr + oLevel);
                UInt32 RequiresLevel = MyWoW.Memory.ReadUInt(questPtr + oRequiresLevel);
                String QuestName = MyWoW.Memory.ReadUTF8String(questPtr + oQuestName, 255);

                Console.WriteLine(QuestId + " " + QuestName + " " + Level + " " + RequiresLevel);

                questPtr = MyWoW.Memory.ReadUInt(questPtr);

                if (questPtr == firstQuestPtr)
                    break;

            }

Here is the output :

...
13222 Defend the Siege 80 78
13195 A Rare Herb 80 78
13181 Victory in Wintergrasp 80 78
13179 No Mercy for the Merciless 80 78
13149 Dispelling Illusions 80 78
...

All offsets is for patch 4.0.6a 13623.

[teufel123]

thanks for the share, might be usefull sometime for me !

[TOM_RUS]

Another example how to read wow cache data as full struct (not just quests, it can be used for gameobjects, npc, etc as well, all you need is proper struct and cache offset) Filebeam - Beam up that File Scottie!.

If you are in process, you can just call engine function to get a pointer to specific cache row (yes, it's that simple).

[JuJuBoSc]

Thanks for the struct TOM_RUS, specially the WowCache struct which I haven't reversed right now

[caowenyu]

Great, exactly what I am looking for. Many thanks

---------- Post added at 08:14 AM ---------- Previous post was at 07:02 AM ----------

I just tested the code. It does not always work for me. For example, when the gossip window is open and I have not clicked the quest title. Sometimes, the DB caches does not have the quest information. How do you deal with it?

[TOM_RUS]

Great, exactly what I am looking for. Many thanks

---------- Post added at 08:14 AM ---------- Previous post was at 07:02 AM ----------

I just tested the code. It does not always work for me. For example, when the gossip window is open and I have not clicked the quest title. Sometimes, the DB caches does not have the quest information. How do you deal with it?

Quests is only cached when being put into your quest log, you click quest link in chat etc. In gossip window quest data displayed using different source...

[caowenyu]

ok, after a bit reverse the GetGossipAvailableQuests, i got the information i need. I originally thought the questID information could not be retrieved, for from the return of GetGossipAvailableQuests, there is no questID. But it's there. Here is the code:

                int add1 = 0xE36960 + ProcessManager.getProcessRebaseAdd();
                for (int i = 0; i < 32; i++)
                {
                    int qID = ProcessManager.WowProcess.ReadInt((uint)add1);
                    if (qID == 0)
                        continue;
                    int level = ProcessManager.WowProcess.ReadInt((uint)add1 + 4);
                    if (tempResult != "")
                    {
                        tempResult += "::";
                    }
                    tempResult += qID.ToString() + ":" + level.ToString() + ":" + ProcessManager.improvedReadUTF8String((uint)add1 + 0x14, 255);
                    add1 += 532;
                }

0xE36960 is rebased to 0x400000

[JuJuBoSc]

ok, after a bit reverse the GetGossipAvailableQuests, i got the information i need. I originally thought the questID information could not be retrieved, for from the return of GetGossipAvailableQuests, there is no questID. But it's there. Here is the code:

                int add1 = 0xE36960 + ProcessManager.getProcessRebaseAdd();
                for (int i = 0; i < 32; i++)
                {
                    int qID = ProcessManager.WowProcess.ReadInt((uint)add1);
                    if (qID == 0)
                        continue;
                    int level = ProcessManager.WowProcess.ReadInt((uint)add1 + 4);
                    if (tempResult != "")
                    {
                        tempResult += "::";
                    }
                    tempResult += qID.ToString() + ":" + level.ToString() + ":" + ProcessManager.improvedReadUTF8String((uint)add1 + 0x14, 255);
                    add1 += 532;
                }

0xE36960 is rebased to 0x400000

Alos if u have reversed the UIFrame (I posted some example a while ago), you can get some information in the child of Quest/GossipTiltleButtonX