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scrabble-game/ui/src/game/Rack.svelte
T
Ilia Denisov 90eaf4964b
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Stage 13: alphabet on the wire (UI alphabet-agnostic, TODO-4)
Live play now exchanges per-variant alphabet indices instead of concrete
letters (rack out; submit-play, evaluate, exchange, word-check in). The client
caches each variant's (index, letter, value) table behind
StateRequest.include_alphabet and renders the rack and blank chooser from it,
dropping the hardcoded value/alphabet tables. History, the durable journal and
GCG stay decoded concrete characters (ARCHITECTURE §9.1, unchanged).

- pkg/fbs: new AlphabetEntry + PlayTile; StateView.rack -> [ubyte] + alphabet;
  StateRequest.include_alphabet; SubmitPlay/Eval tiles -> [PlayTile];
  Exchange tiles + CheckWord word -> [ubyte] (committed Go + TS regenerated).
- engine: AlphabetTable + a cached per-variant codec (LetterForIndex/EncodeRack/
  DecodeTiles/DecodeWord) + BlankIndex sentinel; Go parity test.
- backend server edge maps index<->letter (new thin game.Service.GameVariant);
  game.Service domain methods, engine.Game and the robot keep one letter-based
  play path. The gateway forwards indices verbatim (no alphabet table).
- ui: lib/alphabet.ts in-memory cache; codec encodes/decodes indices; premiums.ts
  is geometry-only; the mock seeds a fixture table; the UI normalises display to
  upper case (codec + cache), leaving placement/board/checkword unchanged.

Parity moved to the Go engine.AlphabetTable test; premiums.ts loses its value
tables. Discharges TODO-4.
2026-06-04 16:26:43 +02:00

79 lines
2.0 KiB
Svelte

<script lang="ts">
import type { RackSlot } from '../lib/placement';
import { BLANK } from '../lib/placement';
import { valueForLetter } from '../lib/alphabet';
import type { Variant } from '../lib/model';
let {
slots,
variant,
selected,
ondown,
}: {
slots: RackSlot[];
variant: Variant;
selected: number | null;
ondown: (e: PointerEvent, index: number) => void;
} = $props();
// Used slots are hidden (the rack shifts left, freeing room on the right for the
// MakeMove control); the slot still exists in the model for per-tile recall.
const visible = $derived(slots.filter((s) => !s.used));
</script>
<div class="rack">
{#each visible as slot (slot.index)}
<button
class="tile"
class:selected={selected === slot.index}
data-rack-index={slot.index}
onpointerdown={(e) => ondown(e, slot.index)}
>
<span class="letter">{slot.letter === BLANK ? '' : slot.letter}</span>
{#if slot.letter !== BLANK}<span class="val">{valueForLetter(variant, slot.letter)}</span>{/if}
</button>
{/each}
</div>
<style>
.rack {
display: flex;
gap: 5px;
align-items: center;
/* Reserve one tile's height so an empty rack (e.g. a finished game) keeps the
footer the same size as during play — no layout jump between states. */
min-height: min(12.5vw, 46px);
}
.tile {
position: relative;
flex: 0 0 auto;
width: min(12.5vw, 46px);
aspect-ratio: 1;
background: var(--tile-bg);
color: var(--tile-text);
border: none;
border-radius: 5px;
box-shadow: inset 0 -3px 0 var(--tile-edge);
font-weight: 700;
font-size: 1.4rem;
touch-action: none;
user-select: none;
}
.tile.selected {
outline: 3px solid var(--accent);
outline-offset: -3px;
}
.letter {
position: absolute;
top: 8%;
left: 14%;
}
.val {
position: absolute;
right: 4px;
bottom: 1px;
font-size: 0.7rem;
font-weight: 600;
}
</style>