Client-side (multiplayer.js):
- Add socket listeners for rematch events
- Update startMultiplayerGame to show surrender button and track opponent ID
- Update handleGameEnded to show game-over modal with stats
- Add handleRematchRequest method
- Add global helper functions for rematch acceptance/decline
Server-side (gameManager.js):
- Add rematches Map to track rematch requests
- Add handleSurrender method
- Add sendRematch, acceptRematch, declineRematch methods
- Handle surrender stats updates and game cleanup
Server (server.js):
- Add socket listeners for: surrender, send_rematch, accept_rematch, decline_rematch
Features now fully functional:
- Players can surrender during active games
- Players can request rematches after games end
- Opponents receive rematch notifications
- Game-over modal shows stats and rematch option
- Add surrender button to game controls
- Add game-over modal with stats and rematch option
- Add surrender confirmation modal
- Add all CSS styling for new modals and buttons
- Add surrender-rematch.js with global helper functions
- Update multiplayer.js constructor to track opponent for rematch
- Added ID to turn label for easier updates
- Updated multiplayer.js to use turnLabel ID
- Reset turn label when switching modes or resetting game
- Improved UX by keeping player/turn info together
- Created storage.js wrapper with IndexedDB support
- Automatic fallback to localStorage if IndexedDB unavailable
- Updated all username storage calls to use async API
- Better performance and more storage capacity
- Improved PWA compatibility
Benefits:
- 50MB+ storage vs 5-10MB localStorage
- Async API doesn't block main thread
- Better for future features (game history, stats, etc.)
- Set up all socket listeners BEFORE connection completes
- Remove nested 'connect' listener that caused race condition
- Add comprehensive logging for registration flow
- Update all listeners to use socket parameter
- Fix window.multiplayerClient reference in retry link
This fixes the 'Registering...' stuck state issue.
