NETREK-WEB

A browser-based version of the classic Netrek game. Play instantly in your web browser - no installation required!

Quick Start

For Players

1. Visit the server in your browser: http://server-address:8080
2. Enter your name and choose a team
3. Click "Enter Game" to start playing

For Server Owners

# Install the server
go install github.com/lab1702/netrek-web@latest

# Run the server
netrek-web

# Or run on custom port
netrek-web -port 3000

Server is now running at http://localhost:8080

Game Controls

Mouse

• Left Click: Fire torpedo
• Middle Click: Fire phaser
• Right Click: Set course

Keyboard

• 0-9: Set speed
• S: Shields
• O: Orbit planet
• R: Repair
• L: Lock on target
• C: Cloak
• T/Y: Tractor/Pressor beam
• P: Plasma torpedo
• D: Detonate torpedoes
• B: Bomb planet
• Z/X: Beam armies up/down
• A: Message all
• Shift+T: Team message
• ?: Help window
• \: Practice mode (add bots)

Advanced Setup

Build from Source

Prerequisites: Go 1.25+

git clone https://github.com/lab1702/netrek-web.git
cd netrek-web
go build
./netrek-web

Docker

docker build -t netrek-web .
docker run -d -p 8080:8080 netrek-web

Game Features

• 4 teams with 40 planets
• 6 ship types (Scout, Destroyer, Cruiser, Battleship, Assault, Starbase)
• Real-time space combat
• Tournament mode (4v4+)
• Practice mode with bots
• Team messaging system

Development

Code Organization

The project is organized into clear modules for maintainability and scalability:

Server Architecture (server/)

• Handler Modules: Focused, modular message handlers

  • game_state_handlers.go - Login and quit handlers
  • movement_handlers.go - Movement, orbit, and lock handlers
  • combat_handlers.go - Weapons and combat systems
  • ship_management_handlers.go - Repair, beam, and bomb handlers
  • communication_handlers.go - All messaging systems
  • bot_handlers.go - Bot management commands
  • handler_utils.go - Shared utilities and data structures

• Game Engine: Core game mechanics and systems

  • websocket.go - WebSocket handling and game loop
  • physics.go - Physics simulation and collision detection
  • projectiles.go - Torpedo and projectile systems
  • systems.go - Ship systems (shields, weapons, engines)
  • planets.go - Planet mechanics and interactions
  • tournament.go - Tournament mode logic
  • victory.go - Victory conditions and game ending

• Bot AI System: Intelligent computer opponents

  • bots.go - Main bot coordination and initialization
  • bot_combat.go - Combat decision-making and targeting
  • bot_navigation.go - Movement and pathfinding
  • bot_planet.go - Strategic planet capture decisions
  • bot_weapons.go - Weapon firing and aim calculation
  • bot_jitter.go - Position randomization to prevent clustering
  • bot_helpers.go, bot_types.go - Supporting utilities

• Utilities: Supporting systems

  • intercept.go - Advanced torpedo targeting calculations
  • game_helpers.go - Game utility functions

Client Architecture (static/)

• index.html, game.html - Landing page and game interface
• netrek.js - Main game client and WebSocket communication
• ship-renderer.js, planet-renderer.js - Rendering systems
• info-window.js - HUD and information displays
• ship-bitmaps-all-teams.js - Ship sprite data
• convert_bitmaps.js - Utility to convert X11 bitmap data for planet sprites

Game Data (game/)

• types.go - Core game data structures
• planets.go - Planet configurations and initialization
• torp.go - Torpedo physics and range calculations

This modular structure enables:

• Clear separation of concerns
• Easy navigation to specific systems
• Parallel development without conflicts
• Comprehensive test coverage
• Maintainable and extensible codebase

Testing

The project includes comprehensive test coverage for all critical systems:

Test Files

• Game Logic: game/torp_test.go - Torpedo physics and range calculations
• Server Core:
  • server/handlers_test.go - HTTP and WebSocket handlers
  • server/harness_test.go - Test harness utilities
  • server/test_helpers.go - Testing support functions (helper file)
• Bot AI System:
  • server/bots_test.go - Bot behaviors and decision-making
  • server/bot_combat_test.go - Bot combat improvements and targeting
  • server/bot_jitter_test.go - Position jittering system
• Combat Systems:
  • server/starbase_fire_test.go - Starbase weapon systems
  • server/weapon_direction_test.go - Weapon targeting calculations
  • server/orbit_weapons_test.go - Orbital velocity and weapon accuracy
• Game Features:
  • server/tournament_test.go - Tournament mode logic
  • server/victory_test.go - Victory condition testing
  • server/formatting_test.go - Message formatting tests
• Utilities: server/intercept_test.go - Advanced targeting algorithms

Running Tests

# Run all tests
go test ./...

# Run with verbose output
go test -v ./...

# Run with coverage report
go test -cover ./...

# Run specific test package
go test ./server
go test ./game

# Code quality checks
go fmt ./...
go vet ./...
go build ./...

Credits

Based on the original Netrek (1986). Visit https://www.netrek.org/ for the classic game.

License

Educational implementation. Original Netrek is open source.