feedback7 R22-FIELDS: the path tie-break never wades into more 深水区 than the official route — on 战场#08(下半) the patrolling 铳 / 卢西恩 take the official upper road from (3,9) to (2,3) again (GitHub #375); golden: boss-boss_2-pair, coop2-ABYSS-10-boosted

GitHub #375 (FrogThai): 「水图boss会从下面这条路往蓝门走，实际应该从上路走」. The walking leaders of 战场#08(下半) 涨潮控制
(act2autochess_m04) are 铳 (level_act1autochess_h07_02 route 6; the Hidden Core 铳 on act1autochess_h08_02's patrol
routes) and 卢西恩 (act2autochess_h07_05 route 8): PATROL_MOVE (3,9) → (2,3) → (5,9). Measured (notes repro-375.mjs):
ours 「3,9 2,9 2,6 4,6 4,4 2,4 2,3」 — the lower road through the 深水区 (3,6) / (4,6) — against the official SPFA
「3,9 5,9 5,4 2,4 2,3」 along row 5 with one 深水区 (5,6); the mirrored (3,11) → (2,17) split the same way.
Cause: grid.js _buildField takes the blockable-ground preference pointer (user playtest #2) when its route crosses
strictly fewer non-blockable tiles; 深水区 is non-blockable itself (no deployment), so the lower road counted 2 against
the upper road's 3 (two floor tiles and one water tile) and won. Official pathfinding is the plain 4-neighbour SPFA
(research 08 §3.1). Now the preference pointer is taken only when its route also crosses no more 深水区 than the official
pointer's (a per-tile `deep` count beside `cost`, start excluded). Rule from the Grok triage (scratch-i1b/375.patch),
re-implemented with a precomputed Grid.deepWater mask (terrain 'deepsea': tile_deepsea and tile_deepwater).

Scope (notes dump-fields.mjs / check-official.mjs, every stage × normal / 联防 / boss rect × every walkable
destination): 48 fields change, only on the two water maps (act2 m04 boss field; the inactive act1 m05), 149 pointers,
every one back to the official pointer. The 21 accepted DEVIATIONS (战场#01 / #02 floor, #07, the inactive #05's 7
water-avoiding routes) are unchanged, as are all 154 audited gate routes and data/stages.json's groundPaths
(tools/build-data.mjs --offline into a scratch dir: every data file identical). Other boss-field preference routes of
m04 that cross fewer 深水区 than the official one stay.

Tests: test/sim/pathing-official.test.js — two new #375 tests (the four patrol legs equal the pure official waypoints;
in a real battle the 铳 climbs to row 5 and steps on the 深水区 (5,6) only), both failing on the parent;
test/sim/pathing-crosscheck.test.js — the independent reference port gets the same 深水区 rule (it flagged both the
patrol leg and a random-crate normal-field route of act2 m04 until then); test/sim/pathing-blockable.test.js — the WALK-leg
audit compares with the equal-length routes that cross no more 深水区 than ours (the 14 accepted arena exceptions
unchanged). Grid-related suites 777/777.

Golden:
- fields boss-boss_2-pair (铳 pair on act2autochess_m04, act1autochess_h07_02): the two 铳 patrol the upper roads;
  leader left 5311560 → 5301010, p1 damage up / p2 down, deaths 0 / 2 → 1 / 3; still 8 / 8 kills.
- matches coop2-ABYSS-10-boosted (act2 m04; Final Assault 卢西恩, Hidden Core 铳): still cleared, team LP 800 → 615. The
  bots' operators stand on the lower rows (the same tiles as before); with the leaders on the upper road the Final
  Assault lasts 335 game s instead of 247 and the Hidden Core 638 instead of 190, both past the 150 real-second mark:
  the overtime drain takes 17 + 168 LP (none before), no leak.

docs/DATA.md

@@ -442,7 +442,7 @@ as official level data, and sim tests use them as a plain two-halves road.
 | `special` | `{"mire":{"intervalSec":1,"aspdPerStack":-0.05,"moveMulPerStack":-0.05,"maxStacks":10,"heavyWeight":3,…}}`, `{"infection":{"bb":{"damage":70,"atk":0.2,"attack_speed":20,"duration":300}}}`, `{"deepsea":{"skillId":"sktok_tidectrl_3","bb":{…}}}`, `{"smog":{"rule":"operatorsNotTargetableByEnemyRanged"}}`, `{"blower":{…}}` | special-terrain parameters |
 | `runes[]`, `globalBuffs[]` | `{"key":"map_tile_blackb_assign","bb":{…},"bbStr":{…}}` | level runes (act2 m03 reed rune has no reed tiles — leftover) |
 | `deployTiles` | `{"normal":{"melee":[[9,3],…],"rangedOnly":[[10,4],…],"changedByDevices":[…]},"bossLeft":{…},"bossRight":{…}}` | deployable tiles at match start: `melee` = LOW (effective) buildable ALL/MELEE (ranged may use them too) — and a 深水区 under an active 特制水上平台 (`waterPlatform`, "在水上建立可以部署任意单位的平台"; act1 m05 only — the prep's deploy map only: the sim does not model the canoes, so its Grid keeps those tiles NONE, automatic placements avoid them and the path tie-break counts them as non-blockable [ASSUMED, weight 0 this season]) —, `rangedOnly` = high ground / active platforms; tiles under active crates/mounds and the 深水区 excluded. `bossLeft` / `bossRight` (field coordinates, boss rows 1–5) are what a player may deploy on in a boss round's prep: board (r, c) = boss (r − 7, c) / the right half mirrored (r − 7, 20 − c) (server/match/board.js `field`, user playtest #5 item 7) |
-| `groundPaths` / `groundPathsWithDevices` | `{"12,10->9,2":[[12,10],[12,9],…,[12,3],[11,3],[10,3],[9,3],[9,2]]}` | the ground route of the sim's own `server/sim/grid.js` flow field (research 08 §3.4: 4-direction SPFA from the goal, crates cost 1000, Bresenham line-of-sight smoothing — official route lengths — kept unless the remake's (0.1.0's) road-over-floor preference route crosses strictly fewer non-blockable floor / gate / 深水区 tiles — the fewest among equal-length chains, smoothing that never cuts across floor its grid route does not walk; a corner touch does not count as a crossing — e.g. 战场#01's lower gate takes the col-8 road, not the col-9 floor lane, while 战场#04's keeps the official diagonal from row 9 into row 10; DESIGN §14 corrections, test/sim/pathing-official.test.js) as the tiles an enemy crosses, over the whole map, without / with the match-start devices (crates cost 1000, platforms / mounds blocking [ASSUMED]); the battle re-reads its flow fields live |
+| `groundPaths` / `groundPathsWithDevices` | `{"12,10->9,2":[[12,10],[12,9],…,[12,3],[11,3],[10,3],[9,3],[9,2]]}` | the ground route of the sim's own `server/sim/grid.js` flow field (research 08 §3.4: 4-direction SPFA from the goal, crates cost 1000, Bresenham line-of-sight smoothing — official route lengths — kept unless the remake's (0.1.0's) road-over-floor preference route crosses strictly fewer non-blockable floor / gate / 深水区 tiles and no more 深水区 (GitHub #375) — the fewest among equal-length chains, smoothing that never cuts across floor its grid route does not walk; a corner touch does not count as a crossing — e.g. 战场#01's lower gate takes the col-8 road, not the col-9 floor lane, while 战场#04's keeps the official diagonal from row 9 into row 10; DESIGN §14 corrections, test/sim/pathing-official.test.js) as the tiles an enemy crosses, over the whole map, without / with the match-start devices (crates cost 1000, platforms / mounds blocking [ASSUMED]); the battle re-reads its flow fields live |
 | `options`, `config` | `{"characterLimit":8,"moveMultiplier":0.5}`, `{…configBlackBoard strings…}` | |
 
 Glyph legend (`rows`):

docs/SIM.md

@@ -215,7 +215,9 @@ WALK legs pathfind on the stage grid inside the rect with the official flow fiel
 destination, crates cost 1000, then Bresenham line-of-sight smoothing — research 08 §3.4). The official route stays
 unless 0.1.0's road-over-floor preference route (the fewest non-blockable tiles among equal-length chains, a line of
 sight that never covers floor — diagonal-step corners included — its grid route does not walk; user playtest #2 item 2)
-crosses strictly fewer non-blockable tiles (floor / gate lanes); "crosses" = passes through the tile's interior, a
+crosses strictly fewer non-blockable tiles (floor / gate lanes) and no more 深水区 (GitHub #375: on 战场#08(下半) the
+patrolling 铳 / 卢西恩 waded through two water tiles to dodge one floor tile; the official upper road crosses one);
+"crosses" = passes through the tile's interior, a
 corner touch does not count (`grid.js` `segmentTiles`; community report D5 after 0.1.0: 战场#04's lower-gate enemies cut
 diagonally from row 9 into row 10 as officially), and on equal counts the official route stays.
 test/sim/pathing-official.test.js lists the 21 of 154 stage routes that still differ from the official ones (战场#01's

docs/design/network.md

@@ -95,7 +95,7 @@ Piece = { uid, kind: 'chess'|'item'|'token', id, golden: bool, tier, items: [ {
 
 **Corrections from research 08/09 (normative):**
 - Waves: official generator (research 08 §2): 3 of 6 types, each owns exactly 3 of the 15 round slots, SPECIAL the rest (shuffled per match); per round one type + one weighted special entry (half by round); each template SPAWN **action** becomes `clamp(roundHalfEven(n·P(t)/P(new)), 1, 5)` units over the same window; placeholder actions of the other movement class are skipped. Stage per match from the mode's list (标准 = 战场#01 only, §6.5). No custom balance multipliers (`data/tuning.json` keeps only titles); co-op boss pool = `bloodPoint[difficulty]` unscaled.
-- Ground pathing: official SPFA-style 4-direction search from the goal with crates as cost-1000 tiles, then straight-line smoothing (research 08 §3.4). act1 m02 crates #001–#004 inactive in 下半. Remake refinement (user playtest #2, narrowed by §21.15): route lengths and routes stay the official ones unless 0.1.0's road-over-floor preference route crosses strictly fewer non-blockable (floor / gate / 深水区) tiles — a corner touch is not a crossing; ties keep the official route. E.g. 战场#01's lower-gate enemies take the col-8 road, while 战场#04's keep the official diagonal from row 9 into row 10 (server/sim/grid.js header; test/sim/pathing-official.test.js, pathing-blockable.test.js).
+- Ground pathing: official SPFA-style 4-direction search from the goal with crates as cost-1000 tiles, then straight-line smoothing (research 08 §3.4). act1 m02 crates #001–#004 inactive in 下半. Remake refinement (user playtest #2, narrowed by §21.15): route lengths and routes stay the official ones unless 0.1.0's road-over-floor preference route crosses strictly fewer non-blockable (floor / gate / 深水区) tiles and no more 深水区 (GitHub #375) — a corner touch is not a crossing; ties keep the official route. E.g. 战场#01's lower-gate enemies take the col-8 road, while 战场#04's keep the official diagonal from row 9 into row 10 (server/sim/grid.js header; test/sim/pathing-official.test.js, pathing-blockable.test.js).
 - Observing: no watching while your own normal battle runs; after it ends (and in prep) tap a teammate → 前往查看 (local replica, fast-forwarded). ‹ › only inside 联防/FA fields; FA: own pair only; eliminated: free.
 - Prep interactions: tap a unit → underframe with 出售 +1 (and 撤退 on board); items/Arts → 销毁; shop and upgrade are two-tap (select → confirm; the remake's 机变 cards too, §18.2); strategy draft forbids a strategy already taken by a teammate (队友已选).
 - Emotes: 6 themes × 6 battle emotes (research 09 §4.2), image-only bubbles beside the sender avatar, 1 s cooldown, 3 s bubble; `g.emote {id}` with the official emoji id.

docs/research/08-waves-official.md

@@ -352,8 +352,9 @@ reported the 战场#01 lower-gate enemies walking up the col-9 floor lane, where
 `server/sim/grid.js` keeps every official route LENGTH and the official route itself unless the 2026-09-29
 road-over-floor preference route (equal-length ties to the chain with the fewest non-blockable floor / gate tiles,
 smoothing that never cuts across floor its grid route does not walk, the corner tiles of a diagonal step included)
-crosses strictly fewer non-blockable tiles; in that comparison a segment that only touches a floor tile's corner does
-not cross it. Used alone (0.1.0) the preference also bent official diagonals into L shapes — the D5 report after
+crosses strictly fewer non-blockable tiles and no more 深水区 (GitHub #375, 0.2.2: the 深水区 is non-blockable too, and
+on 战场#08(下半) the patrolling leaders had waded through two water tiles to dodge one floor tile); in that comparison a
+segment that only touches a floor tile's corner does not cross it. Used alone (0.1.0) the preference also bent official diagonals into L shapes — the D5 report after
 0.1.0: on 战场#04 the lower-gate enemies walked (9,10) → (9,8) → (10,8) instead of the official diagonal (9,10) →
 (10,7), which only brushes the corner of the floor (10,9). Lanes that still differ from the table above (21 of the 154
 stage × gate × field routes, test/sim/pathing-official.test.js):