dnd-hub/docs/IMPLEMENTATION_ROADMAP.md

# BMS BattleMap Generator - Implementation Roadmap

## Phase 1: Frontend Renderer MVP (2-3 weeks)

### Week 1: Core Foundation

#### **Days 1-2: Project Setup**
**Tasks:**
1. Initialize Git repository
2. Create Vite + React + TypeScript project
3. Install core dependencies:
   - `konva react-konva` (Canvas rendering)
   - `js-yaml` (YAML parsing)
   - `zod` (Validation)
   - `@monaco-editor/react` (Code editor)
   - `tailwindcss postcss autoprefixer` (Styling)
4. Configure development environment
5. Set up TypeScript, ESLint, Prettier

**Deliverables:**
- ✅ Project repository initialized
- ✅ Development environment working
- ✅ Basic React app running

#### **Days 3-4: BMS Schema Implementation**
**Tasks:**
1. Create TypeScript interfaces for BMS 1.0
2. Implement Zod validation schemas
3. Create YAML parsing utilities
4. Add error handling and validation
5. Create test BMS files for development

**Deliverables:**
- ✅ Complete BMS TypeScript types
- ✅ Runtime validation with Zod
- ✅ YAML parser with error messages
- ✅ Sample BMS files for testing

#### **Days 5-7: Basic Rendering Engine**
**Tasks:**
1. Set up Konva.js canvas
2. Implement grid renderer
3. Define Paperly style system
4. Create room renderer (walls, floors)
5. Add basic UI layout (editor + preview)

**Deliverables:**
- ✅ Canvas displaying grid
- ✅ Rooms rendered as rectangles
- ✅ Paperly style applied
- ✅ Split editor/preview layout

### Week 2: Complete BMS Support

#### **Days 8-10: Element Rendering**
**Tasks:**
1. Implement door renderer
   - Open/closed states
   - Hinge side indicators
   - Connection lines
2. Create object renderer
   - Simple geometric icons
   - Labels and tooltips
   - State indicators
3. Build hazard renderer
   - Visual patterns
   - Color coding
   - DC indicators

**Deliverables:**
- ✅ Doors render with correct states
- ✅ Objects display as icons
- ✅ Hazards show visual patterns
- ✅ Real-time updates on YAML changes

#### **Days 11-12: Advanced Features**
**Tasks:**
1. Implement lighting renderer
   - Light radius visualization
   - Bright/dim zones
   - Glow effects
2. Create annotation renderer
   - Text labels
   - DM notes
   - Connection arrows
3. Build export system
   - PNG export (canvas to image)
   - JSON export (serialized BMS)
   - BMS YAML export

**Deliverables:**
- ✅ Lighting effects rendered
- ✅ Annotations displayed
- ✅ Export functionality working
- ✅ Complete BMS 1.0 support

#### **Day 13: UI Polish**
**Tasks:**
1. Refine UI components
2. Add error reporting
3. Implement zoom/pan controls
4. Add keyboard shortcuts
5. Improve user experience

**Deliverables:**
- ✅ Polished UI
- ✅ Error messages for invalid BMS
- ✅ Zoom/pan functionality
- ✅ Keyboard shortcuts

### Week 3: Testing & Deployment

#### **Days 14-15: Testing & Bug Fixes**
**Tasks:**
1. Test with sample BMS files
2. Fix rendering issues
3. Optimize performance
4. Test on different browsers
5. Create documentation

**Deliverables:**
- ✅ All sample BMS files render correctly
- ✅ Performance optimized for large maps
- ✅ Cross-browser compatibility
- ✅ User documentation

#### **Days 16-17: Alpha Deployment**
**Tasks:**
1. Build production version
2. Deploy to maps.bouncypixel.com
3. Set up basic analytics (optional)
4. Create alpha testing guide
5. Invite initial testers

**Deliverables:**
- ✅ Production build completed
- ✅ Deployed to maps.bouncypixel.com
- ✅ Alpha testing environment ready
- ✅ Testers invited and briefed

## Phase 2: Texture Pack System (3-4 weeks)

### **Week 1: Texture Pack Architecture**
1. Design texture pack file structure
2. Create style configuration format
3. Implement texture loading system
4. Add texture pack manager UI

### **Week 2: Texture Rendering**
1. Modify renderer to use textures
2. Implement texture tiling
3. Add texture blending options
4. Create texture preview system

### **Week 3: Pack Management**
1. Implement pack purchase/download
2. Add pack activation/deactivation
3. Create pack marketplace UI
4. Add user account integration

### **Week 4: Polish & Release**
1. Create default texture packs
2. Test texture rendering
3. Optimize texture loading
4. Release to production

## Phase 3: AI Integration (4-5 weeks)

### **Week 1: AI API Integration**
1. Set up OpenAI API integration
2. Create BMS generation prompts
3. Implement basic AI generation
4. Add API key management

### **Week 2: Chat Interface**
1. Design chat-based UI
2. Implement conversation history
3. Add context preservation
4. Create iterative editing workflow

### **Week 3: Advanced AI Features**
1. Implement schema modification
2. Add suggestion system
3. Create validation feedback
4. Implement rate limiting

### **Week 4: Monetization Integration**
1. Add subscription system
2. Implement API usage tracking
3. Create tiered feature access
4. Add payment processing

### **Week 5: Testing & Release**
1. Test AI generation quality
2. Optimize prompt engineering
3. Performance testing
4. Release to production

## Phase 4: VTT Export & Community Features (4-5 weeks)

### **Week 1: VTT Export Formats**
1. Implement FoundryVTT export
2. Add Roll20 compatibility
3. Create universal VTT format
4. Test with popular VTTs

### **Week 2: Community Features**
1. Add template sharing
2. Create user profiles
3. Implement rating system
4. Add search functionality

### **Week 3: Advanced Tools**
1. Add map editing tools
2. Implement undo/redo
3. Create layer management
4. Add measurement tools

### **Week 4: Performance & Scaling**
1. Optimize for large maps
2. Implement caching
3. Add CDN for assets
4. Scale infrastructure

### **Week 5: Polish & Release**
1. User feedback implementation
2. Bug fixes
3. Documentation updates
4. Production release

## Success Metrics

### Phase 1 (MVP)
- ✅ BMS 1.0 YAML parsing
- ✅ Complete rendering with Paperly style
- ✅ Real-time editor + preview
- ✅ PNG/JSON export
- ✅ Alpha testing with 5-10 users
- ✅ Positive feedback on usability

### Phase 2 (Texture Packs)
- ✅ Texture pack system working
- ✅ At least 3 quality texture packs
- ✅ Users can purchase/activate packs
- ✅ Texture rendering performs well

### Phase 3 (AI Integration)
- ✅ AI generates valid BMS schemas
- ✅ Chat interface intuitive
- ✅ Iterative editing works smoothly
- ✅ Subscription system functional

### Phase 4 (Complete Platform)
- ✅ VTT export works with major platforms
- ✅ Community templates shared
- ✅ Performance handles large maps
- ✅ Platform scales with users

## Risk Mitigation

### Technical Risks
1. **Canvas Performance**: Use Konva.js optimizations, implement viewport culling
2. **Large Map Rendering**: Implement level-of-detail, progressive rendering
3. **Browser Compatibility**: Focus on modern browsers, polyfill if needed
4. **YAML Parsing**: Robust error handling, helpful error messages

### Business Risks
1. **User Adoption**: Free tier lowers barrier, focus on useful core features
2. **Monetization**: Multiple revenue streams (packs, subscription, AI)
3. **Competition**: Unique BMS format, AI integration, community focus
4. **Technical Debt**: Clean architecture, modular design, regular refactoring

## Resource Requirements

### Development
- **Frontend Developer**: 3-4 months full-time (or equivalent)
- **Designer**: 1-2 months for UI/UX and texture packs
- **AI/Backend**: 1-2 months for AI integration (optional backend)

### Infrastructure
- **Hosting**: Static site hosting (Vercel, Netlify, self-hosted)
- **Storage**: CDN for texture packs
- **API**: Optional for AI features
- **Database**: Optional for user accounts/templates

### Testing
- **Alpha Testers**: 5-10 trusted users
- **Beta Testers**: 50-100 users
- **Production Testing**: Continuous user feedback

## Future Considerations

### Technical Debt
- Regular code reviews
- Comprehensive testing
- Documentation updates
- Performance monitoring

### Feature Backlog
1. 3D top-down view
2. Mobile app
3. Collaborative editing
4. Plugin system
5. Advanced generation algorithms
6. Integration with other TTRPG tools
7. Print-friendly formats
8. Custom asset import
9. Advanced lighting simulation
10. Sound effects integration

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*Last Updated: March 19, 2026*
*Next Review: After Phase 1 Completion*