5ad0700b41
Restructured project from nested workspace pattern to flat single-repo layout. This eliminates redundant nesting and consolidates all project files under version control. ## Migration Summary **Before:** ``` alex/ (workspace, not versioned) ├── chess-game/ (git repo) │ ├── js/, css/, tests/ │ └── index.html └── docs/ (planning, not versioned) ``` **After:** ``` alex/ (git repo, everything versioned) ├── js/, css/, tests/ ├── index.html ├── docs/ (project documentation) ├── planning/ (historical planning docs) ├── .gitea/ (CI/CD) └── CLAUDE.md (configuration) ``` ## Changes Made ### Structure Consolidation - Moved all chess-game/ contents to root level - Removed redundant chess-game/ subdirectory - Flattened directory structure (eliminated one nesting level) ### Documentation Organization - Moved chess-game/docs/ → docs/ (project documentation) - Moved alex/docs/ → planning/ (historical planning documents) - Added CLAUDE.md (workspace configuration) - Added IMPLEMENTATION_PROMPT.md (original project prompt) ### Version Control Improvements - All project files now under version control - Planning documents preserved in planning/ folder - Merged .gitignore files (workspace + project) - Added .claude/ agent configurations ### File Updates - Updated .gitignore to include both workspace and project excludes - Moved README.md to root level - All import paths remain functional (relative paths unchanged) ## Benefits ✅ **Simpler Structure** - One level of nesting removed ✅ **Complete Versioning** - All documentation now in git ✅ **Standard Layout** - Matches open-source project conventions ✅ **Easier Navigation** - Direct access to all project files ✅ **CI/CD Compatible** - All workflows still functional ## Technical Validation - ✅ Node.js environment verified - ✅ Dependencies installed successfully - ✅ Dev server starts and responds - ✅ All core files present and accessible - ✅ Git repository functional ## Files Preserved **Implementation Files:** - js/ (3,517 lines of code) - css/ (4 stylesheets) - tests/ (87 test cases) - index.html - package.json **CI/CD Pipeline:** - .gitea/workflows/ci.yml - .gitea/workflows/release.yml **Documentation:** - docs/ (12+ documentation files) - planning/ (historical planning materials) - README.md **Configuration:** - jest.config.js, babel.config.cjs, playwright.config.js - .gitignore (merged) - CLAUDE.md 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
151 lines
4.2 KiB
Markdown
151 lines
4.2 KiB
Markdown
# Chess Game - System Design
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## Architecture Overview
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The chess game follows a **modular, layered architecture** with clear separation of concerns. The system is designed for extensibility, testability, and maintainability.
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### Architectural Style
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- **Pattern**: MVC (Model-View-Controller) with Event-Driven Architecture
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- **Modularity**: ES6 Modules for component isolation
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- **State Management**: Centralized game state with immutable updates
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- **Communication**: Event-based pub/sub for component decoupling
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## System Layers
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### 1. Presentation Layer
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- **ChessBoardView**: Visual board rendering
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- **ChessPieceView**: Piece rendering and animations
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- **UIController**: User input handling and feedback
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- **ThemeManager**: Visual styling and customization
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### 2. Business Logic Layer
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- **GameEngine**: Core game rules and state management
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- **MoveValidator**: Legal move validation and check detection
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- **MoveGenerator**: All possible moves calculation
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- **GameController**: Game flow orchestration
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- **TurnManager**: Player turn handling
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### 3. Data Layer
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- **BoardState**: Current board configuration
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- **GameHistory**: Move history and undo/redo
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- **GameConfig**: Configuration and settings
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- **PersistenceManager**: Save/load game state
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### 4. AI Layer (Optional)
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- **AIPlayer**: Computer opponent interface
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- **MoveEvaluator**: Position evaluation
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- **SearchAlgorithm**: Minimax with alpha-beta pruning
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## Core Principles
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### Single Responsibility
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Each component has one clear purpose and reason to change.
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### Open/Closed Principle
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Components are open for extension but closed for modification through interfaces and hooks.
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### Dependency Inversion
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High-level modules depend on abstractions, not concrete implementations.
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### Event-Driven Communication
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Components communicate through events to minimize coupling.
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## System Constraints
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### Performance
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- Board updates: < 16ms (60 FPS)
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- Move validation: < 5ms
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- AI move calculation: < 2000ms (configurable)
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### Browser Compatibility
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- Modern browsers (ES6+ support)
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- Chrome 90+, Firefox 88+, Safari 14+, Edge 90+
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### Accessibility
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- Keyboard navigation support
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- Screen reader compatibility
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- ARIA labels for all interactive elements
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## Security Considerations
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### Client-Side Only (Phase 1)
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- No network communication
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- Local storage only for persistence
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- Input validation for all user actions
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### Future Network Play (Phase 2)
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- WebSocket communication
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- Move verification on server
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- Anti-cheat measures
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- Rate limiting
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## Scalability Strategy
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### Modular Extension Points
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- Plugin system for new features
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- Theme customization hooks
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- AI difficulty levels
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- Alternative rule sets (variants)
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### Performance Optimization
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- Virtual DOM for efficient rendering
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- Move generation caching
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- Position evaluation memoization
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- Web Workers for AI computation
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## Deployment Architecture
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### File Structure
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```
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chess-game/
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├── index.html # Main entry point
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├── styles/
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│ ├── main.css # Core styles
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│ ├── themes/ # Visual themes
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│ └── responsive.css # Mobile support
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├── src/
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│ ├── core/ # Business logic
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│ ├── ui/ # Presentation
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│ ├── ai/ # AI components
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│ └── utils/ # Shared utilities
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├── assets/
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│ ├── pieces/ # Piece images
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│ └── sounds/ # Sound effects
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└── tests/ # Test suite
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```
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## Technology Stack
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### Core Technologies
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- **HTML5**: Semantic structure
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- **CSS3**: Styling and animations
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- **Vanilla JavaScript**: ES6+ for logic
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### Optional Enhancements
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- **TypeScript**: Type safety (future)
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- **Web Workers**: Background AI computation
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- **Service Workers**: Offline play
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- **IndexedDB**: Persistent storage
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## Quality Attributes
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### Maintainability
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- Clear code organization
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- Comprehensive documentation
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- Automated testing (unit + integration)
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### Testability
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- Pure functions for core logic
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- Dependency injection
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- Mock-friendly interfaces
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### Usability
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- Intuitive drag-and-drop
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- Visual feedback for all actions
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- Responsive design for all devices
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### Extensibility
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- Plugin architecture
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- Configuration-driven behavior
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- Event hooks for customization
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