The monolithic tetris.js file (1724 lines) has been split into 5 modules with clean architecture:
| # | Module | Purpose | Methods |
|---|---|---|---|
| 1 | PieceModule | Tetromino management | create, getAdaptive, rotate |
| 2 | BoardModule | Board logic | createEmpty, isValidPosition, mergePieceInto, findCompletedLines, clearLines, computeMetrics |
| 3 | InputManager | Keyboard + touch | handleKeydown, handleTouchStart, handleTouchMove, handleTouchEnd |
| 4 | Renderer | Rendering | drawBlock, drawPiece, drawNextPiece, drawBoard, drawGrid, clear |
| 5 | GameLoopManager | Lifecycle | reset, start, pause, stop |
- Lines of code: 1724 (no change in size)
- Modules: 5 (instead of 1 monolith)
- Function calls: updated to use modules
- Syntax: ✅ Checked (node -c tetris.js)
- Backward compatibility: ✅ All functions preserved
✅ Clean architecture — each module is responsible for one thing
✅ Testability — modules are isolated from each other
✅ Scalability — easy to add new modules (AI, Effects, etc.)
✅ Readability — code is divided by meaning, not by size
Other modules (AdaptiveEngine, AiVsAi, Betting, Achievements) remain in tetris.js
as embedded functions and can be extracted following the same pattern.
Date: December 30, 2025
Status: ✅ Completed