ExternalAutoWallCS2

This project implements an external AutoWall system for Counter‑Strike 2. It extracts up‑to‑date collision geometry and material data from Source 2 .vpk files, builds a BVH for fast ray‑tracing, and computes bullet penetration damage using real material modifiers.

Warning:

• Not a polished release—some maps exhibit malformed geometry and inverted triangles.
• Development was time‑consuming and is currently paused. Use this as a reference or starting point.

🏗️ Features

• Physics Extraction:
  ‑ Parses .vphys/.phys via vmdll to pull vertex, triangle, and material indices.
• Parser Module:
  ‑ Reads m_collisionAttributes, m_meshes, and m_hulls blocks.
  ‑ Converts hex blobs into std::vector<TriangleCombined>.
• BVH Acceleration:
  ‑ Builds or loads a cached .bvh file.
  ‑ Splits along the longest AABB axis until ≤ 4 triangles per node.
• Ray‑Triangle Intersection:
  ‑ Möller–Trumbore algorithm with BVH speed‑up.
• Bullet Penetration Logic:
  ‑ Computes damage reduction per material segment and distance falloff.
• Python Binding:
  ‑ Exposes handle_bullet_penetration() via pybind11.
• Material Parser:
  ‑ Reads surfaceproperties.txt and surfaceproperties_game.txt for penetration modifiers.

Prerequisites

• Visual Studio 2022 (x64, Release)
• Python 3.10.6 with pybind11

🛠️ Build (Visual Studio)

Configure project properties:

• C/C++ → General → Additional Include Directories

  C:\Users\USERNAME\AppData\Local\Programs\Python\PythonXX\include
  C:\Users\USERNAME\AppData\Local\Programs\Python\PythonXX\Lib\site-packages\pybind11\include
  

• Linker → General → Additional Library Directories

  C:\Users\USERNAME\AppData\Local\Programs\Python\PythonXX\libs
  

• Linker → Input → Additional Dependencies

  pythonXX.lib
  

Build configuration:

Release x64

⚠️ Replace USERNAME and PythonXX with your actual Windows username and Python version.
For example: Python310, USERNAME = John.

📦 Example Usage

see example

🔹 Credits & Links

• Discord Telegram
• UC | [Help] External visibility check

📄 License

This project is licensed under the MIT License.
See the LICENSE file for details.