# Railtrack Pro - Development Plan

## Project Overview
A web-based railway construction game featuring track building, junctions, signals, and 3D driver's eye view.

## Features
- 🚂 Track pieces (straight, curved, junctions, signals)
- 🌍 World grid system for track placement
- 🎮 Interactive construction interface
- 👁️ 3D Driver's eye view
- 🔌 Junction and signal logic
- 💾 Save/load game states

## Architecture
```
/railtrack_pro/
├── index.html          # Main HTML structure
├── css/
│   └── styles.css      # Application styles
├── js/
│   ├── app.js          # Main application logic
│   ├── renderer.js     # Three.js renderer
│   ├── tracks.js       # Track piece definitions
│   ├── world.js        # Grid and world management
│   └── game.js         # Game state and controls
├── assets/
│   ├── textures/       # Track textures
│   └── models/         # 3D models
├── test/
│   └── unit/           # Test files (TDD)
└── README.md           # Project documentation
```

## Technology Stack
- **Frontend**: HTML5, CSS3, JavaScript ES6+
- **3D Rendering**: Three.js
- **Build**: No build system (vanilla JS)
- **Testing**: Jest or Mocha for unit tests

## Development Phases
1. **Phase 1**: Basic project structure and HTML layout
2. **Phase 2**: Three.js renderer setup with camera and scene
3. **Phase 3**: Track piece system with placement
4. **Phase 4**: Grid and world management
5. **Phase 5**: Junctions and signals logic
6. **Phase 6**: Driver's eye view feature
7. **Phase 7**: Game state save/load
8. **Phase 8**: Testing and documentation

## Next Steps
- Create project file structure
- Set up Three.js renderer
- Implement basic track pieces
- Build placement interface

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*Generated: 2026-03-13*