🩸 Lifeblood Engine 2

Lifeblood Engine is a high-performance, multiplayer FPS engine built from scratch in C++. It focuses on classic Quake-style movement mechanics (Bunnyhopping, Air Strafing), raw input precision, and a competitive networking architecture.

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🔥 Key Features

🏃‍♂️ Advanced Physics & Movement

• Quake-Like Movement: Fully implemented air acceleration, friction, and bunnyhopping mechanics.
• 2000Hz Simulation: Physics runs at a fixed high-frequency tickrate for maximum consistency on any framerate.
• Configurable Physics: tweak movement values (Gravity, Speed, Friction) in assets/physics.cfg without recompiling.

⚔️ Multiplayer & Networking

• UDP Networking: Custom reliable/unreliable packet system.
• Client-Server Architecture: Authoritative server logic.
• Anti-Cheat System:
  • Integrity Hashing: Server validates client files (physics.cfg, models) upon connection.
  • Mismatch Rejection: Clients with modified stats or assets are rejected to prevent cheating.

� Rendering & Modding

• OpenGL 3.3 Core: Efficient rendering pipeline.
• OBJ Model Loader: Supports loading custom 3D models for Weapons, Map, and Props.
• Custom Maps: Drop your Blender map export as assets/level.obj to play on custom levels instantly.
• Builder Mode: In-game tool to place props dynamically.

🤖 AI & Gameplay

• Smart Bots: AI that tracks the player and navigates the map.
• Combat System: Hitscan weaponry (AK-47), Health system, Respawning.
• 3D Spatial Audio: Implemented using Miniaudio.

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🛠️ Build Instructions

Prerequisites

• CMake (3.10+)
• C++ Compiler (MSVC, GCC, or Clang)
• OpenGL Drivers

Compiling

# Clone the repository
git clone https://github.com/adiru3/Lifeblood-Engine.git
cd Lifeblood-Engine

# Create build directory
mkdir build
cd build

# Configure and Build
cmake ..
cmake --build . --config Release

Running

• Single Player: Launch and select "Single Player".
• Host Server: Run Lifeblood.exe -> Single Player (Acts as Listen Server).
• Join Server: Run Lifeblood.exe -> Multiplayer -> Enter IP (Default 127.0.0.1).

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🎮 Modding Guide

Changing Physics

Open assets/physics.cfg in any text editor:

gravity=800.0
max_speed=320.0
air_accelerate=10.0
jump_power=270.0

Note: Clients must have the same config as the server to connect!

Custom Maps

1. Create a model in Blender.
2. Export as Wavefront (.obj).
3. Rename to level.obj.
4. Replace the file in assets/ folder.

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🌍 Support & Credits

Engine developed by Adiru3 and the Open Source Community.

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Lifeblood Engine v2.1 - 2026