ai-coding-workflow-labs/gsd-framework/.planning/STATE.md

gsd_state_version, milestone, milestone_name, status, stopped_at, last_updated, last_activity, progress

gsd_state_version	milestone	milestone_name	status	stopped_at	last_updated	last_activity	progress
1.0	v1.0	milestone	in_progress	Completed 06-03-PLAN.md (Mobile Touch Optimization)	2026-03-11T13:42:04.000Z	2026-03-11 — Completed 06-03-PLAN.md (Mobile Touch Optimization)	total_phases completed_phases total_plans completed_plans 6 5 21 19

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gsd_state_version: 1.0 milestone: v1.0 milestone_name: milestone status: in_progress stopped_at: Completed 04-04-PLAN.md (Restart Functionality) - Phase 4 COMPLETE last_updated: "2026-03-11T08:49:15.000Z" last_activity: 2026-03-11 — Completed 04-04-PLAN.md (Restart Functionality) progress: total_phases: 6 completed_phases: 4 total_plans: 15 completed_plans: 15

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gsd_state_version: 1.0 milestone: v1.0 milestone_name: milestone status: in_progress stopped_at: Completed 04-02-PLAN.md (Win/Lose Detection) last_updated: "2026-03-11T08:23:20.344Z" last_activity: 2026-03-11 — Completed 04-01-PLAN.md (Game State Machine) progress: total_phases: 6 completed_phases: 3 total_plans: 15 completed_plans: 13 percent: 87

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gsd_state_version: 1.0 milestone: v1.0 milestone_name: milestone status: in_progress stopped_at: Completed 04-01-PLAN.md (Game State Machine) last_updated: "2026-03-11T08:17:00.000Z" last_activity: 2026-03-11 — Completed 04-01-PLAN.md (Game State Machine) progress: [█████████░] 87% completed_phases: 3 total_plans: 15 completed_plans: 12

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gsd_state_version: 1.0 milestone: v1.0 milestone_name: milestone status: in_progress stopped_at: Completed 02-03-PLAN.md (Game integration with input handling and resize) last_updated: "2026-03-11T03:00:36.000Z" last_activity: 2026-03-11 — Completed 02-03-PLAN.md (Game Integration with Input Handling) progress: total_phases: 6 completed_phases: 2 total_plans: 7 completed_plans: 7 percent: 100

Project State

Project Reference

See: .planning/PROJECT.md (updated 2026-03-10)

Core value: The satisfying "aha!" moment when you spot a valid connection and clear a pair — the core matching loop must feel smooth and rewarding. Current focus: Phase 6: Polish and UX

Current Position

Phase: 6 of 6 (Polish and UX) - IN PROGRESS Plan: 06-03 (Mobile Touch Optimization) Status: Mobile touch optimization complete - RippleAnimation, touch-action CSS, and input feedback Last activity: 2026-03-11 — Completed 06-03-PLAN.md (Mobile Touch Optimization)

Progress: [█████████] 100% of Phase 4 (5/5 plans)

Performance Metrics

Velocity:

• Total plans completed: 15
• Average duration: 7.5 min
• Total execution time: 1.9 hours

By Phase:

Phase	Plans	Total	Avg/Plan
01-core-foundation	3	3	9.3 min
02-grid-and-input	4	4	6 min
03-core-matching-mechanics	3	3	3.3 min
04-game-state-management	5	5	6.25 min

Recent Trend:

• Last 5 plans: 03-01 (6 min), 03-02 (2 min), 03-03 (2 min), 04-01 (5 min), 04-02 (8 min), 04-03 (6 min), 04-04 (8 min)
• Trend: Consistent execution time, slight increase for state management features

Updated after each plan completion | Phase 04 P01 | 5 | 3 tasks | 3 files | | Phase 04 P02 | 8 | 3 tasks | 3 files | | Phase 04 P03 | 6 | 3 tasks | 3 files | | Phase 04 P04 | 8 | 4 tasks | 4 files | | Phase 04 P04 | 8 | 4 tasks | 4 files |

Accumulated Context

Decisions

Decisions are logged in PROJECT.md Key Decisions table. Recent decisions affecting current work:

• [Init]: Web browser first, no backend, single level for v1
• [01-01]: Manual file creation instead of npm create vite due to interactive prompt issues
• [01-01]: Vitest configured with node environment for unit tests
• [01-01]: Used as const assertion for CONFIG to enable type inference
• [01-02]: Used object constraint for TypedEventEmitter generic to support interface types
• [01-02]: Added helper methods (getTickLength, getRafId, isRunning) to GameLoop for testability
• [Phase 01]: Device pixel ratio handling for sharp canvas rendering on high-DPI displays
• [Phase 01]: Browser-compatible EventEmitter implementation instead of Node's events module
• [Phase 01]: Event-driven architecture with typed GameEvents interface
• [02-00]: Preserved existing full test implementations instead of creating stub files
• [02-00]: Discovered Phase 2 already fully implemented (GridManager, Renderer, tests all exist)
• [Phase 02]: Preserved existing full test implementations instead of creating stub files - better than planned
• [02-01]: Used selectedTilesList getter for encapsulation instead of direct property access
• [02-01]: Toggle deselect behavior: clicking selected tile removes it from selection
• [02-01]: Cleared tiles ignored during selection (no state change)
• [02-01]: Input blocking after 2 tiles selected (prevents confusion during match processing)
• [Phase 02]: GridManager created as blocking dependency (Rule 3) since plan 02-01 not yet executed
• [Phase 02]: Time-based fade animations using performance.now() for smooth 100ms selection transitions
• [Phase 02]: Grid centering with offset calculation (canvasSize - gridSize) / 2 for responsive layout
• [02-03]: Used arrow functions for event handlers to maintain proper this binding
• [02-03]: Implemented 150ms debounce for resize events per RESEARCH.md
• [02-03]: Accounted for device pixel ratio in coordinate calculations
• [02-03]: Made setupInputListeners() public for testing flexibility
• [Phase 03]: BFS over A* for pathfinding
• [Phase 03]: State key includes direction for visited tracking
• [Phase 03]: Turn counting: direction changes only, not first move
• [Phase 03]: Static method pattern for PathFinder.findPath
• [Phase 03]: Fail-fast validation: Type check before pathfinding
• [Phase 03]: Score calculation: Base + complexity bonus (0-turn: 150, 1-turn: 125, 2-turn: 100)
• [Phase 03]: Score display: HTML overlay over canvas text
• [Phase 03]: Event-driven match handling with tilesMatched and matchFailed events
• [Phase 04]: String enum for GameState values (better debugging than numeric)
• [Phase 04]: Transition map instead of switch statement for state validation
• [Phase 04]: Explicit canSelectTile() helper for input blocking logic
• [Phase 04]: Event emission on all state changes (including reset)
• [Phase 04]: Type-optimized no-moves detection: Group tiles by type before checking pairs (94% reduction in PathFinder calls)
• [Phase 04]: Game over overlay uses HTML/CSS instead of Canvas for better accessibility and consistent styling with score overlay
• [Phase 04]: Win condition checked on tile:cleared event
• [Phase 04]: No-moves checked after 300ms delay (when tiles cleared)
• [Phase 04]: Game over overlay uses HTML/CSS following score overlay pattern
• [Phase 04]: Input blocking via GameStateManager.canSelectTile() check
• [Phase 04]: Restart functionality preserves previous score display for player achievement visibility
• [Phase 04]: Restart button in game over overlay triggers full state reset (grid, score, state machine)
• [Phase 04]: game:restart event emitted for extensibility (analytics, sound effects)
• [Phase 04]: Restart functionality preserves previous score display for player achievement visibility
• [Phase 04]: Restart button in game over overlay triggers full state reset (grid, score, state machine)
• [Phase 04]: game:restart event emitted for extensibility (analytics, sound effects)
• [Phase 05]: Fisher-Yates shuffle algorithm for O(n) unbiased randomization
• [Phase 05]: Maximum 100 attempts before accepting board (fallback mechanism)
• [Phase 05]: Emits board:generated event for extensibility (analytics, debugging)
• [Phase 05]: Reuses existing NoMovesDetector for solvability verification
• [Phase 06]: RippleAnimation uses selection color (rgba 233, 69, 96) for visual consistency
• [Phase 06]: Ripple duration: 300ms, max radius: 40px for quick but visible feedback
• [Phase 06]: CSS touch-action: none is simplest and most reliable for preventing mobile gestures

Pending Todos

[From .planning/todos/pending/ — ideas captured during sessions]

None yet.

Blockers/Concerns

[Issues that affect future work]

• Git ownership issue: Cannot commit due to "dubious ownership" detection. Requires git config --global --add safe.directory with write access to ~/.gitconfig
• NPM cache issue: Cannot install dependencies due to read-only file system at ~/.npm/_cacache. Requires npm config set cache /tmp/npm-cache

Session Continuity

Last session: 2026-03-11T13:42:04.000Z Stopped at: Completed 06-03-PLAN.md (Mobile Touch Optimization) Resume file: .planning/phases/06-polish-and-ux/06-CONTEXT.md

Phase 2 Complete

All Phase 2 (Grid and Input) plans have been successfully completed:

Plans Completed:

• ✓ 02-00: Test Infrastructure
• ✓ 02-01: GridManager Implementation
• ✓ 02-02: Renderer Implementation
• ✓ 02-03: Game Integration with Input Handling

Artifacts Delivered:

• GridManager: 118 lines - Complete grid management with tile selection
• Renderer: 203 lines - Complete rendering with tile drawing and selection highlights
• Game.ts: 192 lines - Complete game orchestration with input handling and resize support
• Comprehensive test coverage for all components

Phase 2 Requirements Met:

• CORE-02: Grid-based tile layout with proper positioning
• CORE-03: Interactive tile selection with visual feedback

Ready for Phase 3: Matching Logic

Phase 4 Complete

All Phase 4 (Game State Management) plans have been successfully completed:

Plans Completed:

• ✓ 04-00: Phase 4 research and context
• ✓ 04-01: Game State Machine (IDLE, SELECTING, MATCHING, GAME_OVER)
• ✓ 04-02: Win/Lose Detection (game over overlay, no-moves detector)
• ✓ 04-03: Win/Lose Detection Integration (event wiring, overlay display)
• ✓ 04-04: Restart Functionality (full reset, score preservation)

Artifacts Delivered:

• GameStateManager: 123 lines - State machine with transition validation
• NoMovesDetector: 93 lines - Optimized no-moves detection (94% reduction in PathFinder calls)
• Game over overlay: HTML/CSS overlay with win/lose messages
• Restart functionality: 108 lines - Full reset with score preservation
• Comprehensive test coverage for all state management features

Phase 4 Requirements Met:

• CORE-08: Win condition detection and display
• CORE-09: No-moves detection and game over state
• Game state machine with transition validation
• Restart functionality with infinite replayability

Phase 4 Performance Metrics:

• Total execution time: 25 minutes (5 plans)
• Average duration: 6.25 minutes/plan
• Total files modified: 12 files
• Total lines added: ~450 lines

Ready for Phase 5: Board Generation and Recovery