From 4e452dfe1938c92a41ba940db49ede6874b79c4c Mon Sep 17 00:00:00 2001 From: tiennm99 Date: Mon, 13 Apr 2026 22:28:15 +0700 Subject: [PATCH] docs: complete Epic 1 review, create story 2.1 best score tracking MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Epic 1 code review passed with 0 patches needed — all 6 stories marked done. 6 deferred items logged for Epics 2-5. Created story 2-1-best-score-tracking as ready-for-dev to begin Epic 2. --- ...-1-project-scaffold-and-dev-environment.md | 2 +- .../1-2-game-logic-module.md | 2 +- .../1-3-game-board-and-tile-rendering.md | 2 +- .../2-1-best-score-tracking.md | 105 ++++++++++++++++++ .../implementation-artifacts/deferred-work.md | 10 ++ .../sprint-status.yaml | 20 ++-- 6 files changed, 128 insertions(+), 13 deletions(-) create mode 100644 bmad/_bmad-output/implementation-artifacts/2-1-best-score-tracking.md create mode 100644 bmad/_bmad-output/implementation-artifacts/deferred-work.md diff --git a/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md b/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md index d998c48..1e15019 100644 --- a/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md +++ b/bmad/_bmad-output/implementation-artifacts/1-1-project-scaffold-and-dev-environment.md @@ -1,6 +1,6 @@ # Story 1.1: Project Scaffold & Dev Environment -Status: review +Status: done ## Story diff --git a/bmad/_bmad-output/implementation-artifacts/1-2-game-logic-module.md b/bmad/_bmad-output/implementation-artifacts/1-2-game-logic-module.md index bcb545f..ad9d1ef 100644 --- a/bmad/_bmad-output/implementation-artifacts/1-2-game-logic-module.md +++ b/bmad/_bmad-output/implementation-artifacts/1-2-game-logic-module.md @@ -1,6 +1,6 @@ # Story 1.2: Game Logic Module -Status: review +Status: done ## Story diff --git a/bmad/_bmad-output/implementation-artifacts/1-3-game-board-and-tile-rendering.md b/bmad/_bmad-output/implementation-artifacts/1-3-game-board-and-tile-rendering.md index 62587d1..c45185e 100644 --- a/bmad/_bmad-output/implementation-artifacts/1-3-game-board-and-tile-rendering.md +++ b/bmad/_bmad-output/implementation-artifacts/1-3-game-board-and-tile-rendering.md @@ -1,6 +1,6 @@ # Story 1.3: Game Board & Tile Rendering -Status: review +Status: done ## Story diff --git a/bmad/_bmad-output/implementation-artifacts/2-1-best-score-tracking.md b/bmad/_bmad-output/implementation-artifacts/2-1-best-score-tracking.md new file mode 100644 index 0000000..de0b1db --- /dev/null +++ b/bmad/_bmad-output/implementation-artifacts/2-1-best-score-tracking.md @@ -0,0 +1,105 @@ +# Story 2.1: Best Score Tracking + +Status: ready-for-dev + +## Story + +As a player, +I want to see my best score alongside my current score, +so that I have a motivational anchor and can track my all-time progress. + +## Acceptance Criteria + +1. When the current score exceeds the best score after a merge, the best score display updates immediately to match the current score +2. When the player starts a new game, the best score remains unchanged (it persists across games within the session) + +## Tasks / Subtasks + +- [ ] Task 1: Add bestScore state to App.svelte (AC: #1, #2) + - [ ] Add `let bestScore = $state(0);` as a new reactive state variable + - [ ] Add `$effect` that watches `gameState.score` — when it exceeds `bestScore`, update `bestScore` + - [ ] Replace hardcoded `bestScore={0}` with `bestScore={bestScore}` in the ScoreBoard prop + +- [ ] Task 2: Preserve bestScore across New Game (AC: #2) + - [ ] Verify that `handleNewGame()` resets `gameState` via `initGame()` but does NOT reset `bestScore` + - [ ] `bestScore` is a separate `$state` variable, not part of `gameState` — it survives `initGame()` by design + +- [ ] Task 3: Verify existing tests still pass + - [ ] Run `npx vitest run` — all 38 existing tests must pass (no game-logic.js changes) + +## Dev Notes + +### Architecture Compliance + +- **State ownership:** `bestScore` lives in `App.svelte` as a `$state` rune — NOT inside the game state object +- **Props-down pattern:** `App.svelte` passes `bestScore` to `ScoreBoard` via prop (already wired, just hardcoded to 0) +- **No game-logic.js changes:** Best score is a UI/session concern, not game logic. The game-logic module stays pure. +- **No storage.js yet:** localStorage persistence is Story 2.2. This story is in-memory only — best score resets on page refresh. + +### Critical Anti-Patterns (DO NOT) + +- DO NOT add `bestScore` to the `gameState` object — it is NOT part of the canonical game state shape `{ grid, score, won, keepPlaying }` +- DO NOT create a `storage.js` module yet — that is Story 2.2 +- DO NOT use `$derived` for bestScore — it needs to be a `$state` that persists across game resets (derived would reset when gameState resets) +- DO NOT use Svelte stores (`writable`, `readable`) — this project uses Svelte 5 runes only + +### Implementation Pattern + +The correct pattern uses `$effect` to watch score changes: + +```javascript +let bestScore = $state(0); + +$effect(() => { + if (gameState.score > bestScore) { + bestScore = gameState.score; + } +}); +``` + +This works because: +- `$effect` runs whenever `gameState.score` changes (reactive dependency) +- `bestScore` is a separate `$state`, so `handleNewGame()` resetting `gameState = initGame()` (score=0) does NOT reset bestScore +- When a new game starts, `gameState.score` becomes 0, which is NOT > bestScore, so bestScore stays + +### ScoreBoard Component + +`ScoreBoard.svelte` already accepts `score` and `bestScore` props — no changes needed to the component: + +```svelte +let { score = 0, bestScore = 0 } = $props(); +``` + +The only change is in `App.svelte` line 58: replace `bestScore={0}` with `bestScore={bestScore}`. + +### Previous Story Intelligence + +From Epic 1 implementation: +- `App.svelte` owns all state via `$state` rune — `gameState` is the single game state object +- `ScoreBoard` component at `src/components/ScoreBoard.svelte` — presentational, receives `score` and `bestScore` props +- `handleNewGame()` calls `gameState = initGame()` which returns `{ grid, score: 0, won: false, keepPlaying: false }` +- `getDirectionFromKey` is the export name from `input-handler.js` (not `mapKeyToDirection`) +- `overlayType` is used instead of separate `gameOver`/`won` checks in the template +- Existing test suite: 38 tests in `src/lib/game-logic.test.js` — all game logic, no UI tests + +### Scope Boundary + +This story is intentionally minimal: +- **In scope:** In-memory best score tracking that survives New Game within a session +- **Out of scope:** localStorage persistence (Story 2.2), game state persistence (Story 2.2), keep-playing mode changes (Story 2.3) + +### References + +- [Source: _bmad-output/planning-artifacts/epics.md#Story 2.1] +- [Source: _bmad-output/planning-artifacts/architecture.md#Frontend Architecture - State Management] +- [Source: _bmad-output/planning-artifacts/architecture.md#Implementation Patterns - Communication Patterns] + +## Dev Agent Record + +### Agent Model Used + +### Debug Log References + +### Completion Notes List + +### File List diff --git a/bmad/_bmad-output/implementation-artifacts/deferred-work.md b/bmad/_bmad-output/implementation-artifacts/deferred-work.md new file mode 100644 index 0000000..36cc2f6 --- /dev/null +++ b/bmad/_bmad-output/implementation-artifacts/deferred-work.md @@ -0,0 +1,10 @@ +# Deferred Work + +## Deferred from: code review of Epic 1 (2026-04-13) + +- **Best score always 0, never tracked** — UI displays "BEST: 0" that never updates. Covered by Story 2-1 (Best Score Tracking). +- **Tile keyed by position, not identity** — `Grid.svelte` keys tiles by `r-c` grid position instead of unique tile ID. Will break slide/merge animations. Address in Epic 3 (animations). +- **No animation lock for rapid key input** — No debounce or move-in-progress guard in `handleKeydown`. Synchronous now but will need a lock when animations are added in Epic 3. +- **Grid 500px overflow on narrow viewports** — `Grid.svelte` hardcodes `containerSize = 500`. Overflows on mobile. Covered by Story 4-3 (Responsive Layout). +- **Tile font overflow for very large values** — 3-tier font sizing (55/45/35px) exists but values beyond 8192 (6+ digits) may overflow the 106px cell at 35px. Epic 5 polish. +- **Overlay has no keyboard focus trap** — `GameMessage.svelte` does not trap focus or auto-focus the action button. Accessibility improvement for post-MVP. diff --git a/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml b/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml index 31f06b1..d6a4136 100644 --- a/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml +++ b/bmad/_bmad-output/implementation-artifacts/sprint-status.yaml @@ -35,7 +35,7 @@ # - Dev moves story to 'review', then runs code-review (fresh context, different LLM recommended) generated: 2026-04-13 -last_updated: 2026-04-13T01:00:00 +last_updated: 2026-04-13T22:21:00 project: try-bmad project_key: NOKEY tracking_system: file-system @@ -43,18 +43,18 @@ story_location: _bmad-output/implementation-artifacts development_status: # Epic 1: Play a Complete Game (Desktop) - epic-1: in-progress - 1-1-project-scaffold-and-dev-environment: review - 1-2-game-logic-module: review - 1-3-game-board-and-tile-rendering: review - 1-4-game-header-score-display-and-new-game-button: review - 1-5-keyboard-input-and-interactive-gameplay: review - 1-6-win-and-game-over-overlays: review + epic-1: done + 1-1-project-scaffold-and-dev-environment: done + 1-2-game-logic-module: done + 1-3-game-board-and-tile-rendering: done + 1-4-game-header-score-display-and-new-game-button: done + 1-5-keyboard-input-and-interactive-gameplay: done + 1-6-win-and-game-over-overlays: done epic-1-retrospective: optional # Epic 2: Save Progress & Keep Playing - epic-2: backlog - 2-1-best-score-tracking: backlog + epic-2: in-progress + 2-1-best-score-tracking: ready-for-dev 2-2-game-state-persistence: backlog 2-3-keep-playing-mode: backlog epic-2-retrospective: optional