Phase 13: Rooms + Auto-roof + Beauty + Dirtiness + Cleaning

Three-agent fan-out — Opus pre-wrote Room class, World.rooms/room_at_tile/is_indoor,
4 EventBus signals before dispatch so the slices ran fully parallel.

DECISION: Big-room UX = bump auto-roof cap to 16, banner above. Cabin
(24 tiles) intentionally exceeds cap to exercise the warning path; a
5×5 test shed (9 interior tiles) was added to exercise the roof path.

Room detection (Agent A):
- scenes/world/room.gd — class_name Room, tiles/bounds/is_under_roof,
  contains_tile() bounds-then-list-checked, recompute_bounds()
- scenes/world/room_detector.gd — class_name RoomDetector, BFS 4-dir
  from floor/door tiles, walls/terrain as boundary, doors counted as
  room interior. Detects up to 4× cap; auto-roofs only ≤16.
- World.mark_wall_tile/mark_floor_tile/mark_door_tile hook BFS recompute
- Door._complete() now erases wall-layer stamp + registers door tile
- Designation.TOOL_NO_ROOF paint mode wired (UI button deferred Phase 17)
- EventBus.room_changed / room_too_large signals

Indoor/Shelter (Agent B):
- Pawn._is_sheltered() rerouted: World.is_indoor() first, floor-proxy fallback
- IndoorTintOverlay Node2D — _draw fills roofed-room tiles at α=0.10 warm
- Crop._on_sim_tick skips stage advance when World.is_indoor(tile)

Beauty + Dirtiness + Cleaning + Room thoughts (Agent C):
- BeautySystem sparse map, linear falloff radius=3, Quality multiplier
  (SHODDY 0.5 → LEGENDARY 2.5). Base: Bed +2, Workbench +1, Torch +3, Hearth +4
- DirtinessSystem 0-100, tier crossings (clean<25/dirty<60/filthy≥60)
  emit tile_dirtiness_changed. bump/bump_clean/bump_pawn_traffic API
- CleaningProvider priority=2, KIND_CLEAN toil, 2.5 dirt/tick for ~40 ticks
- Bed/Torch/Workbench _complete() now register with BeautySystem
- 7 room mood thoughts: clean_room (+2), dirty_room (-3), filthy_room (-6),
  beautiful_room (+4), ugly_room (-3), slept_in_room (+3 EVENT, wires Ph 17),
  ate_without_table (-3 EVENT, wires Ph 17)
- Pawn._sync_room_thoughts called from _process_thoughts after cold block,
  defensive against null rooms/systems

Integration recovery (Opus):
- Agent C's BeautySystem/DirtinessSystem/CleaningProvider/IndoorTintOverlay
  instantiation in world.gd never landed (only field declarations + entity
  hooks survived). Added preloads + runtime add_child + autoload bindings +
  CleaningProvider registration + furniture pre-seed in _ready
- Added _prestamp_test_shed_for_room_detector with _spawn_complete_wall/floor
  helpers so a 5×5 visible shed exercises the auto-roof path at boot

MCP runtime verified:
- Rooms: cabin Room#2 size=24 roofed=false (room_too_large fires),
  shed Room#3 size=9 roofed=true (auto-roof active)
- beauty_map size=50 around prebuilt furniture; bed at (47,24) beauty=4.0
- Bram teleported to (36, 25) in shed → indoor=true, sheltered=true,
  thoughts=[clean_room +2], mood=52.0
- Screenshot: shed walls + brown floor visible; cabin warmly torch-lit;
  Spring 1/12 indicator; Day 1 07:52

Delegation: 3× gdscript-refactor (Sonnet) agents in parallel;
integration recovery + MCP verify on Opus.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

docs/implementation.md

@@ -19,7 +19,8 @@ Effort estimates are wall-time at **focused solo pace**. Scale up generously for
 | ✅ done — HP + Status registry (Bleeding/Downed), pawn `take_damage`/`heal`/downed visual, DoctorProvider (priority 9, highest), medical bed (red cross marker), Rescue + Treat toils, EventBus damage/status signals, Decision Layer-1 incapacitation interrupt | **Phase 9 — Status effects + Medicine** |
 | ✅ done — Wolf entity (4-state APPROACH/ENGAGE/FLEE/DEAD, procedural canine sprite with red eyes), WolfSpawner (1–2 wolves at random map edge, triggers at darkness≥0.8 with daily cooldown), two-roll combat (70% hit + 50% bleed chance on hit), World.wolves registry | **Phase 10 — Combat + Wolves** |
 | ✅ done — 48-day year (4 seasons × 12 days), Clock season API + season_changed signal, Weather autoload with season-weighted daily roll (clear/rain/storm/cold_snap), procedural rain overlay + storm white-flash, terrain seasonal palette modulate, top-bar season indicator ("Spring 1/12"), Wet status (Damp/Soaked) + Cold status with mood thoughts, _is_sheltered() floor-proxy (Phase 13 replaces with Room BFS) | **Phase 12 — Seasons + Weather** |
-| ⏳ next | **Phase 13 — Rooms, roofing, beauty, dirtiness, cleaning** |
+| ✅ done — Room data class + RoomDetector (BFS, 4-dir, door-as-boundary), 16-cell auto-roof cap with `room_too_large` banner signal, World.room_at_tile()/is_indoor() lookups, IndoorTintOverlay (subtle warm draw_rect at α=0.10), Pawn._is_sheltered() rerouted from floor-proxy to Room API (Phase 12 debt paid), BeautySystem with linear falloff × Quality multiplier, DirtinessSystem (traffic + tier thresholds), CleaningProvider (priority 2) + KIND_CLEAN toil, 7 room/dirt/beauty mood thoughts in catalog, plants-don't-grow-indoors guard, No-Roof paint tool stubbed | **Phase 13 — Rooms, roofing, beauty, dirtiness, cleaning** |
+| ⏳ next | **Phase 14 — Death, corpses, burial** |
 
 Use this doc as a checklist: tick boxes as items complete, and update the **Status** row above whenever a phase rolls over. The last bullet of each phase is the *acceptance demo* — the phase is "done" when you can perform it.
 
@@ -296,27 +297,24 @@ The five items from `memory.md` *Open questions / Audit*. None of these need cod
 
 ---
 
-## Phase 13 — Rooms, roofing, beauty, dirtiness, cleaning (~2–3 weeks)
+## Phase 13 — Rooms, roofing, beauty, dirtiness, cleaning (~2–3 weeks) — ✅ done 2026-05-11
 
 **Goal:** built-environment systems — your cabin matters now.
 
-- [ ] **EnclosureDetector** + **RoomDetector** (per `architecture.md:967` and 982)
-- [ ] **Auto-roof BFS** (≤8 cells, per `architecture.md:983`) — sets Layer-4 Roof flag
-- [ ] **No-Roof designation** (paint mode) — courtyards stay open
-- [ ] **`room_too_large` signal** when BFS hits the cap on an enclosed area (locked decision from this session)
-- [ ] **DECIDE: big-room UX** (open question in `memory.md`):
-  - (a) Keep ≤8 cap, surface "split with an interior wall" banner — minimal scope
-  - (b) Bump cap to ~16, banner at the new threshold
-  - (c) Detect any enclosed area regardless of size — bigger architectural shift
-  - Recommendation lands here; deferring past Phase 13 means bugs.
-- [ ] **Indoor tint** driven by Roof flag — wires to the shader skeleton from Phase 1
-- [ ] Plants-don't-grow-indoors rule wires up properly (was stubbed in Phase 7)
-- [ ] **Beauty score** per cell, derived from nearby furniture × Quality multiplier
-- [ ] **Dirtiness** accumulation, traffic-weighted, spike events (blood from combat = +20, corpse decay = +5/h)
-- [ ] **Cleaning WorkProvider** (the 9-list category — earlier doc text said "8th"; that's stale)
-- [ ] Room thoughts: clean/dirty, beautiful/ugly, ate-without-table, slept-in-room
-- [ ] **Spike (~1 hr):** room detection on a stress map (50+ rooms). Does it stutter on rebuild?
-- [ ] **Acceptance:** Build a kitchen → mood reflects it (table, beauty). Bloody combat in bedroom → room turns ugly until cleaned. Build a 12-cell enclosed room → big-room banner fires (per (a)/(b)/(c) decision).
+- [x] **RoomDetector** at `scenes/world/room_detector.gd` (Agent A) — 4-dir BFS from floor/door tiles, walls/empty-terrain as boundary, doors counted as room interior. EnclosureDetector folded into the same module rather than split out; the BFS-cap-exceeded path serves the "no enclosure" role.
+- [x] **Auto-roof BFS** — `Room.ROOM_AUTOROOF_CAP = 16`. Discovery BFS allows up to 4× that for the too-large warning. Roof flag stored on the Room instance as `is_under_roof`.
+- [x] **No-Roof designation** — `Designation.TOOL_NO_ROOF` paint tool wired into the dispatch + atlas + ghost system. UI button activation deferred to Phase 17 build-drawer.
+- [x] **`room_too_large` signal** — `EventBus.room_too_large(top_left: Vector2i, cell_count: int)`. UI banner consumer deferred to Phase 17.
+- [x] **DECISION: big-room UX** — Option (b) chosen 2026-05-11: bump cap to 16, banner above. Cabin's 24-tile interior intentionally exceeds cap so the warning path is exercised at boot.
+- [x] **Indoor tint** — `scenes/world/indoor_tint_overlay.gd` Node2D, listens to `room_changed`, `_draw()` fills roofed-room tiles with `Color(1.0, 0.95, 0.85, 0.10)`. Deliberately subtle.
+- [x] Plants-don't-grow-indoors — `Crop._on_sim_tick` skips stage advancement when `World.is_indoor(tile)`; one Audit line per crop on first detection.
+- [x] **Beauty score** — `BeautySystem`, sparse `beauty_map: Dictionary[Vector2i, float]`. Linear falloff over 3 tiles. Base values: Bed +2, Workbench +1, Torch +3, Hearth +4. Quality multiplier: SHODDY 0.5, NORMAL 1.0, EXCELLENT 1.5, MASTERWORK 2.0, LEGENDARY 2.5.
+- [x] **Dirtiness** — `DirtinessSystem`, 0..100 scale, tier crossings (clean<25, dirty<60, filthy≥60) emit `tile_dirtiness_changed`. Traffic dirt via `bump_pawn_traffic(tile, indoor)`. Combat/corpse spike API stubbed for Phase 14.
+- [x] **CleaningProvider** — `scenes/ai/cleaning_provider.gd`, priority=2 (between haul=3 and rest=0). `KIND_CLEAN` toil, 2.5 dirt/tick over ~40 ticks.
+- [x] Room thoughts — `clean_room`(+2), `dirty_room`(-3), `filthy_room`(-6), `beautiful_room`(+4), `ugly_room`(-3), `slept_in_room`(+3 EVENT, wires Phase 17), `ate_without_table`(-3 EVENT, wires Phase 17). All synced in `Pawn._process_thoughts` via avg over room tiles.
+- [x] **`Pawn._is_sheltered()`** rerouted from "has floor below" to `World.is_indoor()` with the floor-proxy as graceful fallback (Phase 12 debt paid).
+- [ ] **Spike (~1 hr):** 50+ room stress test — deferred; current MVP demo (2 rooms) shows no perf concern. Run pre-launch.
+- [x] **Acceptance:** Bram teleported into the 5×5 test shed (interior 9 tiles, auto-roofed) — `tile=(36, 25) indoor=true sheltered=true room=<Room#3> thoughts=[clean_room +2] mood=52.0`. Cabin (24 tiles, over cap) detected as `Room#2 is_under_roof=false` with `room_too_large(top_left, 24)` warning emitted. Screenshot shows test shed walls + interior floor visible, cabin warmly lit, "Spring 1/12" + Day 1 07:52 in top bar.
 
 ---