Reading scene information from memory

[darthsidious]

Trying to read scene information from memory using D3 adventures (pasted code below) and getting bad data, the nav zone data comes back with with bad data, null pointers, no nav cells, etc... has anyone done this successfully with out memory injection?

I'm trying to get the dynamic nav cell information of a dungeon so I can move around the area,

public static uint objectManager = 0x1543B9C;
public static uint itrObjectManagerA { get { return mem.ReadMemoryAsUint(objectManager); } }


    public static class SceneManager
    {
        public static Scene[] getScenes()
        {
            uint offset = Offsets.itrObjectManagerA + 0x8F4;
            uint sceneCountPtr = Globals.mem.ReadMemoryAsUint(offset) + 0x10c;
            uint sceneListPtr = Globals.mem.ReadMemoryAsUint(offset) + 0x148;
            sceneListPtr = Globals.mem.ReadMemoryAsUint(sceneListPtr);

            int numScenes = Globals.mem.ReadMemoryAsInt(sceneCountPtr);

            List<Scene> scenes = new List<Scene>();
            for (int i = 0; i < numScenes; i++)
            {
                Scene s = new Scene(new IntPtr(sceneListPtr));
                scenes.Add(s);

                sceneListPtr += 0x2A8;
            }
            return scenes.ToArray();
        }
    }

[MisguidedRage]

Theres a post about this just below yours, read down a bit.

[darthsidious]

Theres a post about this just below yours, read down a bit.

What's the title of the post? The one about detecting borders mentions this and I'm using the code to do it but the returned scene class has bad data in it (i.e. has the memory structure changed for scenes?)

[infotech1]

the struct is wrong in d3adventure, you need to add an extra int before the position info, not sure where exactly off the top of my head. but most stuff needs to move down one Int of space then it all lines up properly.

[DarthTon]

These structures work correctly in my project:

Scene data from Object manager:

//sizeof = 0x54
class NavZoneRaw 
{
public:
   DWORD id_navzone;       // 0x000
   DWORD id_world;         // 0x004
   DWORD id_unknown_008;   // 0x008
   Vec2 unknown_00C;       // 0x00C
   DWORD unknown_014;      // 0x014
   Vec2 zoneMin;           // 0x018
   Vec2 zoneMax;		   // 0x020
   DWORD unknown_028[8];   // 0x028
   DWORD pNavZoneDefRaw;   // 0x048
   DWORD pSceneRecord;     // 0x04C
   DWORD unknown_050;      // 0x050
};

//sizeof = 0x1C8
class NavMeshRaw 
{
public:
   DWORD id_navmesh;		// 0x000
   DWORD id_world;			// 0x004
   DWORD unknown_008[3];	// 0x008
   DWORD sno_levelarea;		// 0x014
   DWORD unknown_018[3];	// 0x018
   DWORD sno_portalWorld;	// 0x024
   DWORD unknown_028[10];	// 0x028
   float unknown_050;		// 0x050
   DWORD unknown_054[5];	// 0x054
   float unknown_068;		// 0x068
   DWORD unknown_06C[8];	// 0x06C
   DWORD sizeX;				// 0x08C
   DWORD sizeY;				// 0x090
   AABB  unknown_094;		// 0x094 
   AABB  unknown_0AC;		// 0x0AC
   DWORD unknown_0C4[5];	// 0x0C4
   DWORD id_sno;			// 0x0D8
   DWORD unknown_0DC[4];	// 0x0DC
   Vec2 MeshMin;			// 0x0EC
   DWORD unknown_0F4[16];	// 0x0F4
   AABB bounds;				// 0x134
   AABB boundsMarker;		// 0x14C
   Vec2 MeshMax;			// 0x164
   float unknown_16C[3];	// 0x16C
   DWORD unknown_178;		// 0x178
   NavZoneRaw* pZone;		// 0x17C
   DWORD unknown_180[9];	// 0x180
   DWORD unknown_1A4;		// 0x1A4 Read by D3::NavMesh::GetFlags
   DWORD unknown_1A8;		// 0x1A8
   DWORD unknown_1AC[7];	// 0x1AC
};

//sizeof = 0x2A8
class SceneRaw 
{
public:
	int id_scene;			// 0x000
	NavMeshRaw navmesh;     // 0x004
	DWORD unknown_1CC[55];	// 0x1CC
};

SNO related:

//sizeof = 0x10
class DataPtr
{
public:
	DWORD file_offset;		// 0x000
	DWORD size;				// 0x004
	DWORD mem_offset;		// 0x008
	DWORD unused;			// 0x00C
};

//sizeof = 0x8
class DataPtr2
{
public:
	DWORD file_offset;		// 0x000
	DWORD size;				// 0x004
};


//sizeof = 0x8
class NavMeshSquare
{
public:
	float z;					// 0x000
	NavCellFlagsDW flags;		// 0x004
};

//sizeof = 0x6
class NavGridSquare
{
public:
	NavCellFlagsW Flags;		// 0x000
	WORD W1;					// 0x002
	WORD CellLookupIndex;		// 0x004
};

//sizeof = 0x20
class NavCell
{
public:
	Vec3 Min;					// 0x000
	Vec3 Max;					// 0x00C
	NavCellFlagsW Flag;			// 0x018
	WORD NeighbourCount;		// 0x01A
	DWORD NeighborsIndex;		// 0x01C
};

//sizeof = 0x4
class NavCellLookup
{
public:
	NavCellFlagsW Flags;		// 0x000
	WORD WCell;					// 0x002
};

//sizeof = 0x128
class NavMeshDef
{
public:
	DWORD SquaresX;				// 0x000
	DWORD SquaresY;				// 0x004
	DWORD pad_008;				// 0x008
	DWORD SquareCount;			// 0x00C
	float pad_010;				// 0x010
	DataPtr2 Squares;			// 0x014
	DWORD pad_01C;				// 0x01C
	NavMeshSquare* array_ptr;	// 0x020
	DWORD pad_024;				// 0x024
	char name[256];				// 0x028
};

//sizeof = 0x84
class NavZoneDef
{
public:
	DWORD NavCellCount;			// 0x000
	DWORD pad_004[3];			// 0x004
	DataPtr2 NavCells;			// 0x010
	DWORD NeighbourCount;		// 0x018
	DWORD pad_01C[3];			// 0x01C
	DataPtr2 NavCellNeighbours; // 0x024
	float pad_02C[2];			// 0x02C
	DWORD pad_034;				// 0x034
	Vec2 V0;					// 0x038
	DWORD pad_040[3];			// 0x040
	DataPtr2 GridSquares;		// 0x04C
	DWORD pad_054[4];			// 0x054
	DataPtr2 CellLookups;		// 0x064
	DWORD BorderDataCount;		// 0x06C
	DWORD pad_070[3];			// 0x070
	DataPtr2 BorderData;		// 0x07C
};


//sizeof = 0x30C
class SNOScene
{
public:
	MemHeader header;			// 0x000
	AABB AABBBounds;			// 0x010
	AABB AABBMarketSetBounds;	// 0x028
	NavMeshDef navmesh;			// 0x040
	DataPtr2 Exclusions;		// 0x168
	DWORD pad_170[14];			// 0x170
	DataPtr2 Inclusions;		// 0x1A8
	DWORD pad_1B0[14];			// 0x1B0
	DataPtr2 MarkerSets;		// 0x1E8
	DWORD pad_1F0[14];			// 0x1F0
	char lootlink[64];			// 0x228
	DataPtr2 MapTrigEvent;		// 0x268
	DWORD pad_270[4];			// 0x270
	NavZoneDef NavZone;			// 0x280
	DWORD SNOAppearance;		// 0x304
	DWORD SNOPhysMesh;			// 0x308
};

[darthsidious]

These structures work correctly in my project:

Scene data from Object manager:

DarthTon how do you read in those structures in your project? Are you using DLL injection or memory reads?

[DarthTon]

OOP memory reads. You can find out more from my code: http://www.ownedcore.com/forums/diab...framework.html ([C++] My D3 OOP framework)

[darthsidious]

OOP memory reads. You can find out more from my code: http://www.ownedcore.com/forums/diab...framework.html ([C++] My D3 OOP framework)

Sweet, thanks DarthTon!