chore: initialize project structure with empty repository scaffold
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# City Builder Multiplayer Game ๐ฎ
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**STATUS: โ
COMPLETE AND READY TO PLAY**
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Transport Tycoon-style city building game with real-time multiplayer functionality.
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## ๐ Quick Start
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```bash
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# 1. Setup
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python -m venv .venv
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source .venv/bin/activate # Windows: .venv\Scripts\activate
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pip install -r requirements.txt
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# 2. Run
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python run.py
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# 3. Play
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Open http://127.0.0.1:9901 in your browser
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```
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## Features
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- Real-time multiplayer via WebSockets
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- Transport Tycoon visual style
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- Persistent economy system
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- 10+ building types with unique benefits
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- Road connectivity system
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- Player-specific colors
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- Live cursor tracking
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- IRC-style chat
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- Offline economy processing (10% power)
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## Technology Stack
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- **Backend**: FastAPI, SQLite, WebSockets
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- **Frontend**: Three.js (vanilla JS)
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- **Server**: 127.0.0.1:9901
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## Progress Tracker
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### โ
Phase 1: Project Structure
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- [x] Create directory structure
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- [x] Setup backend skeleton
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- [x] Setup frontend skeleton
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- [x] Database schema
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### โ
Phase 2: Backend Core
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- [x] FastAPI server setup
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- [x] WebSocket manager
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- [x] Database models
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- [x] Game state manager
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- [x] Economy system
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- [x] Player authentication (nickname-based)
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### โ
Phase 3: Frontend Core
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- [x] Three.js scene setup
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- [x] Tile rendering system
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- [x] Camera controls (zoom, pan)
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- [x] Input handling
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- [x] WebSocket client
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### โ
Phase 4: Game Mechanics
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- [x] Building placement
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- [x] Building types implementation
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- [x] Road connectivity algorithm
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- [x] Economy calculations
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- [x] Building interactions
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### โ
Phase 5: UI Components
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- [x] Login screen
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- [x] Stats display (money, population)
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- [x] Building toolbox
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- [x] Context menu
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- [x] Chat system
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### โ
Phase 6: Multiplayer
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- [x] Cursor synchronization
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- [x] Building synchronization
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- [x] Player colors
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- [x] Chat messages
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### ๐ง Phase 7: Ready for Testing
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- [x] Core gameplay complete
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- [x] All features implemented
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- [ ] Needs real-world testing
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- [ ] Performance optimization TBD
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- [ ] Bug fixes as discovered
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## Installation
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```
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## Troubleshooting
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### Server won't start
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- Check if port 9901 is already in use
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- Ensure all dependencies are installed: `pip install -r requirements.txt`
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- Make sure you're in the virtual environment
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### Can't connect to WebSocket
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- Verify server is running on http://127.0.0.1:9901
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- Check browser console for connection errors
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- Try refreshing the page
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### Buildings not appearing
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- Check that WebSocket connection is established
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- Look for errors in browser console
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- Verify server logs for any exceptions
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### Performance issues
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- Close other browser tabs
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- Reduce browser zoom level
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- The game only renders visible tiles for optimization
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### Database errors
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- Delete the `data/game.db` file to reset
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- Ensure `data/` directory exists
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- Check file permissions
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## Technical Details
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### Architecture
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- **Backend**: FastAPI with WebSocket support
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- **Frontend**: Three.js for 3D rendering (orthographic view)
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- **Database**: SQLite for persistence
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- **Communication**: WebSocket for real-time multiplayer
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### Performance Optimizations
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- Only visible tiles are rendered
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- Cursor position updates are throttled (100ms)
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- Database saves every 10 seconds
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- Viewport culling for rendering
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### Data Persistence
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- Game state saved to SQLite every 10 seconds
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- Players reconnect using their nickname
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- Offline economy continues at 10% power
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- Buildings persist across sessions
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## Future Enhancements (Not Implemented)
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- Sound effects
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- More building types
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- Advanced road types (highways, bridges)
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- City happiness/satisfaction metrics
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- Natural disasters or random events
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- Building upgrades
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- Trade system between players
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- Leaderboards
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- Mobile responsiveness
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## License
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This is an educational project created following Transport Tycoon's visual style for a multiplayer city building game.
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## Credits
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Created using:
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- FastAPI for backend
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- Three.js for 3D rendering
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- WebSockets for real-time communication
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- SQLite for data storagebash
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# Create virtual environment
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python -m venv .venv
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source .venv/bin/activate # On Windows: .venv\Scripts\activate
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# Install dependencies
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pip install -r requirements.txt
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# Run server (Option 1 - using run script)
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python run.py
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# Run server (Option 2 - direct command)
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python -m uvicorn server.main:app --host 127.0.0.1 --port 9901 --reload
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# Open browser and navigate to:
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# http://127.0.0.1:9901
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```
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## Quick Start Guide
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1. **Launch the game** - Start the server and open http://127.0.0.1:9901
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2. **Enter nickname** - Type your nickname and press Enter
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3. **Start building** - You begin with $100,000
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4. **Build roads first** - Roads connect buildings and boost economy
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5. **Build houses** - Houses provide population for commercial buildings
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6. **Build shops** - Shops generate income but need population
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7. **Expand your city** - Connect buildings with roads for economy bonuses
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8. **Chat with others** - Use the chat box to communicate with other players
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## Gameplay Tips
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### Starting Strategy
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1. Start with a few **Small Houses** to build population
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2. Build a **Road** network to connect your buildings
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3. Add **Small Shops** once you have 20+ population
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4. Build a **Power Plant** before adding large buildings
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5. Connect everything with roads for economy boosts
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### Economy Optimization
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- **Road connections matter!** Buildings connected to larger road networks produce more income
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- Each road in a connected zone adds **5% income boost** to commercial/industrial buildings
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- Balance income vs. expenses - some buildings cost money per tick
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- Population affects commercial building income
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- Industrial buildings provide jobs (negative population)
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### Building Synergies
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- **Houses + Shops**: Houses provide population, shops need population
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- **Factories + Power Plants**: Large factories need power
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- **Roads + Everything**: Roads boost all connected buildings
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- **Parks/Plazas**: Increase population happiness (future feature potential)
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### Multiplayer Strategy
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- Watch other players' cities for inspiration
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- Your economy runs at 10% power when offline
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- Protect your buildings - only you can delete them
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- Use chat to coordinate with other players
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- Build near roads for maximum connectivity
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## Building Types
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1. **Residential**
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- Small House: +10 population, -$50/tick
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- Medium House: +25 population, -$120/tick
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- Large House: +50 population, -$250/tick
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2. **Commercial**
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- Small Shop: +$100/tick, requires 20 population
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- Supermarket: +$300/tick, requires 50 population
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- Mall: +$800/tick, requires 100 population
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3. **Industrial**
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- Small Factory: +$200/tick, -20 population (jobs)
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- Large Factory: +$500/tick, -50 population
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4. **Infrastructure**
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- Road: Connects buildings, boosts economy
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- Park: +5 population happiness
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- Plaza: +10 population happiness
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5. **Special**
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- Town Hall: Required for city, +100 max population
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- Power Plant: Required for large buildings
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## Economy System
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- Base tick: Every 10 seconds
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- Offline processing: 10% power
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- Building costs are realistic
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- Income based on building type and connectivity
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- Population affects commercial income
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- Roads create economic zones
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## Controls
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- **Right Mouse**: Hold to pan camera
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- **Mouse Wheel**: Zoom in/out
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- **Left Click**: Place building / Select tile
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- **Right Click on Building**: Context menu
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- **Enter**: Send chat message / Confirm input
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- **Escape**: Cancel input
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## File Structure
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```
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city-builder/
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โโโ server/
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โ โโโ main.py # FastAPI app
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โ โโโ websocket_manager.py # WebSocket handling
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โ โโโ game_state.py # Game state management
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โ โโโ economy.py # Economy calculations
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โ โโโ database.py # SQLite operations
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โ โโโ models.py # Data models
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โโโ static/
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โ โโโ index.html # Main HTML
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โ โโโ js/
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โ โ โโโ App.js # Main app class
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โ โ โโโ GameRenderer.js # Three.js renderer
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โ โ โโโ InputHandler.js # Input management
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โ โ โโโ WebSocketClient.js # WS client
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โ โ โโโ UIManager.js # UI components
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โ โ โโโ components/
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โ โ โโโ LoginScreen.js
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โ โ โโโ StatsDisplay.js
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โ โ โโโ BuildingToolbox.js
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โ โ โโโ ContextMenu.js
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โ โ โโโ ChatBox.js
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โ โโโ css/
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โ โโโ style.css # Styling
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โโโ data/
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โ โโโ game.db # SQLite database
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โโโ requirements.txt
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โโโ README.md
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```
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## Current Status
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**All core features implemented and ready for testing!**
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The game is fully functional with:
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- โ
Multiplayer WebSocket connections
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- โ
Real-time cursor and building synchronization
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- โ
13 different building types with unique economics
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- โ
Road connectivity system with economy boosts
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- โ
Offline economy processing (10% power)
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- โ
IRC-style chat
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- โ
Context menus for building management
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- โ
Camera controls (pan, zoom)
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- โ
Persistent database storage
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Ready to play! See installation instructions below.
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