poe2-bot/src/Roboto.Memory/States/WorldDataState.cs
2026-03-02 23:45:12 -05:00

60 lines
1.8 KiB
C#

using System.Numerics;
using Roboto.GameOffsets.States;
namespace Roboto.Memory.States;
/// <summary>
/// Reads WorldData struct (168B, 1 RPM) and resolves the camera matrix.
/// Primary camera source: WorldData.CameraPtr. Fallback: InGameState.CameraPtr (set via FallbackCameraPtr).
/// </summary>
public sealed class WorldDataState : RemoteObject
{
private WorldData _data;
/// <summary>Camera pointer from InGameState, set by InGameStateReader before Update() is called.</summary>
public nint FallbackCameraPtr { get; set; }
public Matrix4x4? CameraMatrix { get; private set; }
/// <summary>Resolved address of the camera matrix for hot-path caching.</summary>
public nint CameraMatrixAddress { get; private set; }
public WorldDataState(MemoryContext ctx) : base(ctx) { }
protected override bool ReadData()
{
var mem = Ctx.Memory;
var offsets = Ctx.Offsets;
// Read the full WorldData struct (0xA8 = 168 bytes, 1 RPM)
_data = mem.Read<WorldData>(Address);
// Resolve camera: primary from WorldData, fallback from InGameState
if (offsets.CameraMatrixOffset <= 0)
return true;
var camPtr = _data.CameraPtr;
if (camPtr == 0)
camPtr = FallbackCameraPtr;
if (camPtr == 0)
return true;
var matrixAddr = camPtr + offsets.CameraMatrixOffset;
CameraMatrixAddress = matrixAddr;
var m = mem.Read<Matrix4x4>(matrixAddr);
if (float.IsNaN(m.M11) || float.IsInfinity(m.M11))
return true;
CameraMatrix = m;
return true;
}
protected override void Clear()
{
_data = default;
FallbackCameraPtr = 0;
CameraMatrix = null;
CameraMatrixAddress = 0;
}
}