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tiennm99 beb02ac578 docs: lock scope to lô tô hội chợ tân tân variant

- pdr: explicit in-scope (9x9, 5/row + 5/col, ascending cols, single-row
  Kinh, "Chờ N", continue-after-win) vs out-of-scope (3x9 european
  bingo 90, two-line / full-house tiers, custom number ranges)
- update codebase-summary, system-architecture, development-roadmap to
  reflect 11x9 master board, draw-order overlay, exact 5/col picker
- add researcher report comparing tân tân vs european bingo 90

2026-04-26 23:40:07 +07:00

3.7 KiB

Raw Blame History

Codebase Summary

File Organization

Routing & Layout

File	Purpose
`src/routes/+layout.svelte`	Root HTML layout. Sets Vietnamese lang, imports Geist font, applies global flex layout.
`src/routes/+page.svelte`	Player page (`/`). Instructions toggle, PlayerBoard component, indigo gradient branding.
`src/routes/master/+page.svelte`	Host page (`/master`). Controls (new game, draw number), 11×9 last-digit-aligned master board with draw-order overlay, host's player card.

Shared Components

File	Purpose
`src/lib/PlayerBoard.svelte`	Reusable player card (9×9 grid). Handles crossed state, bingo popup, "Chờ X" toast. Accepts `storagePrefix` prop for multi-card isolation.

Game Logic

File	Purpose
`src/lib/game-logic.js`	Stateless utilities: generateGrid (constraint-aware picker — exact 5 per row & per col, ascending-sorted columns), saveGrid, loadGrid, saveCrossedState, loadCrossedState, isRowComplete, getWaitingNumber.

Styling

File	Purpose
`src/app.css`	Root styles: Tailwind @import, CSS variables (light/dark), `.loto-grid` & `.master-grid` (9-col), animations (fade-in, pop-in, bounce-slow, spin-slow, toast), `.cell-crossed` diagonal.

Configuration

File	Purpose
`svelte.config.js`	adapter-static (HTML export), dual basePath via BUILD_PROFILE env.
`vite.config.js`	Tailwind + SvelteKit plugins. codeserver HMR config (port, allowedHosts, hmr).
`package.json`	SvelteKit 2, Svelte 5 (runes), Tailwind 4, Vite. Scripts: dev, dev:codeserver, build, build:gh, lint.
`eslint.config.mjs`	ESLint 9 flat config (@eslint/js + eslint-plugin-svelte).
`jsconfig.json`	Path alias `$lib`, no checkJs.
`.gitignore`	Excludes node_modules, build, .env.local, etc.
`.env.example`	codeserver profile vars (CODESERVER_HOST, CODESERVER_PORT).

Key Data Structures

Grid: 9×9 2D array of numbers (1–90). Empty cells are 0.
Crossed: 9×9 2D array of booleans indicating marked cells.
Master State: { called: number[], remaining: number[] } — drawn and undrawn numbers.

Storage Keys (localStorage)

Key	Use Case
`loto_grid`	Player's card numbers.
`loto_crossed`	Player's marked cells.
`loto_master`	Host's drawn/remaining numbers.
`loto_master_card_grid`	Host's player card numbers.
`loto_master_card_crossed`	Host's marked cells.

Component Hierarchy

RootLayout
├── HomePage (/)
│   ├── Instructions toggle
│   └── PlayerBoard (storagePrefix="loto")
└── MasterPage (/master)
    ├── Controls (new game, draw)
    ├── Master board (11×9, last-digit aligned, draw-order overlay)
    └── PlayerBoard (storagePrefix="loto_master_card")

Key Functions

Function	Location	Effect
`pickFilledCols()`	game-logic.js	Per-row column selection that guarantees exact 5 per col (forces any col whose remaining quota equals rowsLeft, random-fills the rest).
`generateGrid()`	game-logic.js	Builds 9×9; ascending-sorted numbers per column.
`isRowComplete()`	game-logic.js	Boolean: all non-zero cells in row crossed?
`getWaitingNumber()`	game-logic.js	Returns the single uncrossed number in row, or null.
`buildBoard()`	master/+page.svelte	Builds 11×9 master grid; row = ones-digit, col = tens-digit; col 0 holds 1–9, col 8 holds 80–90.
`handleCellClick()`	PlayerBoard.svelte	Toggle crossed[row][col].
`saveGrid()` / `loadGrid()`	game-logic.js	localStorage with prefix-based keys.

Last reviewed: 2026-04-26

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