Kwayk

Kwayk is a modern reimplementation of the classic Quake (1996) game engine using Qt Quick 3D and QML. It runs natively on desktop platforms and in web browsers via WebAssembly.

✨ Features

• 🎮 Single Player campaign — monsters, weapons, items, and level progression
• 🌐 WebAssembly support — play directly in your browser
• 🎨 Modern rendering — Qt Quick 3D with decals, particles, and view-model rendering
• 💡 Color lightmaps — Quake lightmaps with animated light styles and fullbright textures
• 🔊 3D spatial audio — positional sound using Qt SpatialAudio (desktop) and Web Audio API (WASM)
• ⚡ Physics engine — Qt Quick 3D Jolt Physics for accurate collision detection
• 🧩 Classic entity logic — doors, platforms, teleporters, push/hurt triggers, secrets, pickups, and monster AI
• 🖥️ Cross-platform — Linux, Windows, macOS, and WebAssembly
• 📺 Retro aesthetics — faithful recreation of the original look and feel

🗺️ Roadmap

• Single Player (Episode 0 from LibreQuake)
• Multiplayer (Deathmatch, Co-op)
• Custom map support
• Mod support

🖼️ Screenshots

🎮 Live Demo

▶️ Play in browser (WebAssembly)

🚀 Getting Started

Prerequisites

• Qt 6.9+ with the following modules:
  • Qt QML
  • Qt Quick
  • Qt Quick 3D
  • Qt Quick 3D Private
  • Qt Spatial Audio
• Qt Quick 3D Jolt Physics — physics plugin for Qt Quick 3D
• CMake 3.16+

Building

# Clone the repository
git clone git@github.com:glazunov999/Kwayk.git
cd Kwayk

# Configure and build
cmake -B build -DCMAKE_PREFIX_PATH=/path/to/Qt/6.9.3/gcc_64
cmake --build build --parallel

# Run
./build/appKwayk

Building for WebAssembly

# Configure with Emscripten Qt kit
cmake -B build-wasm \
  -DCMAKE_TOOLCHAIN_FILE=/path/to/emsdk/upstream/emscripten/cmake/Modules/Platform/Emscripten.cmake \
  -DCMAKE_PREFIX_PATH=/path/to/Qt/6.9.3/wasm_singlethread

cmake --build build-wasm --parallel

# Serve locally
cd build-wasm
python3 -m http.server 8080
# Open http://localhost:8080/appKwayk.html

🛠️ Project Structure

Kwayk/
├── Assets/           # Game assets (textures, sounds, maps)
│   ├── images/       # UI and texture images
│   ├── maps/         # Qt Quick 3D level data converted from BSP
│   ├── progs/        # Model files (.mdl)
│   └── sounds/       # Sound effects
├── Backend/          # C++ backend modules
│   ├── mdl.*         # Quake MDL model loader
│   ├── cmd.*         # Console command system
│   ├── lightstyletexture.*  # Animated Quake light styles
│   └── webspatialaudio/  # Web Audio API implementation
├── id1/              # Intermediate converted Quake data used by the asset pipeline
├── Kwayk/
│   ├── Core/         # Core game systems (rendering, audio, particles)
│   ├── Game/         # Game logic (entities, triggers, monsters)
│   ├── Ui/           # User interface (menus, HUD, console)
│   └── js/           # JavaScript utilities
└── tools/
    └── q1pak/        # PAK file extractor and BSP converter

📦 Asset Conversion

Converting Quake assets is a two-step process:

Step 1: Extract and convert to Collada

The q1pak tool extracts PAK files and converts BSP maps to Collada (.dae) format:

cd tools/q1pak
qmake && make
./q1pak /path/to/id1/pak0.pak -o ./output

Step 2: Convert to Qt Quick 3D format

Use Qt's balsam tool to convert Collada files to Qt Quick 3D meshes and QML:

# Convert a map
balsam ./output/maps/lq_e0m1/lq_e0m1_map.dae -o ../../Assets/maps/lq_e0m1

# The output includes:
# - meshes/*.mesh    (binary mesh data)
# - *.qml            (Qt Quick 3D scene)
# - maps/*.png       (textures)

Note: Some manual adjustments to the generated QML may be required for proper material setup.