0.2.6-dev: port PR #416 by Cromemadnd — at every round start the own board's pieces replay their Start clip and landing sound one after another in deployment order (the maintainer's confirmation from official play, 2026-10-13), and a purchase or a move onto / across the board plays them too ([ASSUMED], the PR author's account); one sound per landing, idle prep pieces only, the round marked once the view took the sequence, own board only, timers cleared when prep mode ends and on destroy; DESIGN §31.8; golden: unchanged

public/js/screens/game.js

@@ -52,6 +52,10 @@
 // reward card armed for a purchase that completes a merge lights, in gold, the board tile its elite will take (the
 // deployed copy that deploys first, gameLogic.mergeTarget — none when no copy is deployed: the elite goes to the hand);
 // the elite then appears there with the promotion cue (render/app.js setPrep → fx.promote).
+// Round start (PR #416 by @Cromemadnd; the maintainer's confirmation from official play, 2026-10-13): in 回合开始 the own
+// board's pieces replay their Start clip and landing sound one after another in deployment order, once per round and on
+// the own board only (gameLogic roundStartReplay → render/app.js replayDeploys); a purchase and a move onto or across the
+// board play it too ([ASSUMED], the PR author's account: render/app.js setPrep).
 // The bond strip, its popup and a unit card's bond chips follow the player on screen (DESIGN §20.15, ui/watchBonds.js):
 // a scouted / watched / auto-observed teammate's field → that teammate's bonds (m.public players[].bonds, tagged
 // "👁 name"); 联防 / 最终攻势 → the player on the ‹ › half (全景: yours when you fight there, else the teammate picked
@@ -99,7 +103,7 @@ import {
   terrainInfo, deviceInfo, deviceTipAt, noteDeviceUnits, deviceUnitsForEntry,
   countdownState, shopBlockReason, stageOverrides, effectiveStage, watchTarget, dropFailureReason,
   previewEnemyKey, prepCamera, prepCameraFor, foldCamera, deployFieldOf, fieldTile, panelSide, panelSlots, bondPopupPlace, unitLoadout, deployedRecord,
-  mergeTarget, modeOffBonds, readyFundsPrompt, readyShopFold, ownerBandId, ownDiyRecord, ownStandIn,
+  mergeTarget, modeOffBonds, readyFundsPrompt, readyShopFold, ownerBandId, ownDiyRecord, ownStandIn, roundStartReplay,
 } from '../ui/gameLogic.js';
 import { toast } from '../ui/toasts.js';
 import { BriefingScreen } from './briefing.js';
@@ -516,6 +520,17 @@ function MatchScreen() {
     }
   }, [view, showPrep, priv, editable, field, combat, mode, watchingOther, watching, holdSeq]);
 
+  // the round start (PR #416 by @Cromemadnd; the maintainer's confirmation from official play, 2026-10-13): the own board's
+  // pieces replay their Start clip and landing sound one after another in deployment order — once per round, in 回合开始, on
+  // the own board only (gameLogic roundStartReplay). After the wiring effect above, so the view already holds this state's
+  // pieces; the round counts as replayed only once the view took the sequence (a view still loading or a board not built
+  // yet is asked again on the next render of the phase), and a reconnect or a re-render of the round plays nothing more.
+  const replayedRef = useRef(null);
+  useEffect(() => {
+    const plan = roundStartReplay({ phase, round: pub?.round, replayed: replayedRef.current, ownBoard: showPrep && alive && !spectator, board: priv?.board });
+    if (plan && view && view.replayDeploys?.(plan.uids) > 0) replayedRef.current = plan.round;
+  }, [view, phase, pub?.round, priv, showPrep, alive, spectator]);
+
   // battle frames straight from the socket (server-run combat, 20 Hz) or from the local simulation (client-side combat,
   // battle/runner.js, every animation frame) — never through the store. Frames go to the view as received: the game
   // time travels as `gt` and the render engine reads it (render/interp.js frameTime).