ai-coding-workflow-labs/bmad/_bmad-output/implementation-artifacts/2-3-keep-playing-mode.md

Story 2.3: Keep Playing Mode

Status: done

Story

As a player, I want to continue playing after reaching 2048, so that I can push for higher tiles and a bigger score.

Acceptance Criteria

1. After clicking "Keep going", the keepPlaying flag is set to true and subsequent 2048+ merges do not trigger the win overlay again
2. After closing and reopening the app in keep-playing mode, the game restores with keepPlaying: true and no win overlay
3. In keep-playing mode with no valid moves, the game over overlay appears normally

Tasks / Subtasks

• Task 1: Verify keepPlaying flag behavior (AC: #1)

  • handleKeepGoing() sets keepPlaying: true in gameState (implemented in Story 1.6)
  • overlayType checks !gameState.keepPlaying — win overlay only shows when keepPlaying is false (Story 1.6)
  • game-logic.js move() win check: !won && !state.keepPlaying prevents re-trigger (Story 1.2)

• Task 2: Verify persistence of keepPlaying (AC: #2)

  • saveGameState includes keepPlaying in serialized state (Story 2.2)
  • loadGameState restores keepPlaying from localStorage (Story 2.2)
  • On restore with keepPlaying: true and won: true, overlayType evaluates to null — no win overlay

• Task 3: Verify game over in keep-playing mode (AC: #3)

  • overlayType checks isGameOver(gameState) regardless of keepPlaying — gameover overlay shows normally

• Task 4: Run full test suite

  • All 49 tests pass — no code changes needed for this story

Dev Notes

Architecture Compliance

All Story 2.3 acceptance criteria were already satisfied by prior stories:

• Story 1.2: Game logic win detection respects keepPlaying flag
• Story 1.6: handleKeepGoing, overlayType derived, GameMessage overlay
• Story 2.2: localStorage persistence of full game state including keepPlaying

No code changes required — this story is verification-only.

References

• [Source: _bmad-output/planning-artifacts/epics.md#Story 2.3]

Dev Agent Record

Agent Model Used

Claude Opus 4.6 (1M context)

Debug Log References

Completion Notes List

• All 3 ACs verified against existing implementation — no code changes needed
• keepPlaying flag flow: handleKeepGoing → saveGameState → loadGameState → overlayType check
• Win re-trigger prevented by game-logic.js condition: !won && !state.keepPlaying
• 49 tests passing, no regressions

File List

• (no files changed — verification-only story)