Phase 12: Seasons + Weather (rolls, rain, storm, wet/cold)

48-day year (4 seasons × 12 days), daily weather rolls, rain visual,
storm flash, Wet/Cold statuses with mood thoughts.

Three-agent fan-out — Opus prepped contracts up front (event_bus
signals, Clock season constants, Weather autoload stub) so the three
slices could run fully parallel and integrate on first try.

Calendar (Agent A):
- Clock season API — SEASON_SPRING/SUMMER/AUTUMN/WINTER constants,
  current_season(), current_season_index(), day_of_season(),
  current_year(), DAYS_PER_SEASON=12, DAYS_PER_YEAR=48
- EventBus.season_changed emitted on transition (mirrors phase_changed)
- Top-bar SeasonLabel ('Spring 1/12') with localized season names via
  Strings.t() — season.spring/summer/autumn/winter + season.format
- Terrain TileMapLayer seasonal palette modulate
  (spring=warm-green, summer=neutral, autumn=warm-orange, winter=cool-blue)

Weather (Agent B):
- autoload/weather.gd — daily roll triggered by Clock day-index change
  Probability tables per season (placeholders, tune Phase 20):
    spring  60% clear / 35% rain /  5% storm
    summer  75% clear / 18% rain /  7% storm
    autumn  50% clear / 35% rain / 12% storm /  3% cold_snap
    winter  55% clear / 15% rain / 10% storm / 20% cold_snap
- EventBus.weather_changed signal
- scenes/world/rain_overlay.tscn — procedural _draw() diagonal raindrops
  on a CanvasLayer (chosen over CPUParticles2D for pixel-art exactness
  and to colocate storm-flash logic in one weather-aware script)
- Storm flash — Tween-driven ColorRect at random 4-8s intervals
- Save round-trip preserves _last_day_index to prevent double-rolling

Wet + Cold + Mood (Agent C):
- StatusCatalog.wet(severity 1-2) — Damp at 25, Soaked at 60 (of 100)
- StatusCatalog.cold(severity 1-3) — Mild at 25, Severe at 60, Extreme at 85
- ThoughtCatalog.damp(-3), soaked(-6), cold_thought(-4)
- Pawn._wet_accum / _cold_accum floats, ticked in _process_statuses:
  +0.02/tick rain (×2 storm), -0.05/tick decay when sheltered
  +0.015/tick cold winter-or-snap (×2 cold_snap)
- _sync_wet_status / _sync_cold_status — severity-flip detection with
  one Audit line per transition
- _is_sheltered() v1: World.floor_layer.get_cell_source_id != -1
  Phase 13 replaces with proper Room BFS
- _wet_accum / _cold_accum round-trip through Pawn.to_dict / from_dict
- Persistent thought sync in _process_thoughts after in_darkness

MCP runtime verified:
- Top-bar 'Spring 1/12' renders; green seasonal terrain tint visible
- Rain droplets render across screen; storm flash captured mid-animation
- Bram wet=26 (Damp) → wet=65 (Soaked) with mood thought (-6), mood=30
- Cora cold=30 cold_snap → Cold status sev=1 + Cold thought (-4), mood=32
- Daily weather rolls visible day 0-5 (rain → clear → rain → clear → rain)

Quick-edit fixup mid-flight: Variant inference errors on
'var old_sev := s.severity' (untyped Array loop var). Same trap as
the Phase 7 crop fix; pattern is now to always explicit-type ':='
when the rhs is non-typed-Array element access.

Delegation: 3× gdscript-refactor agents in parallel, 1× quick-edit
for the Variant-inference fix; integration + MCP verify on Opus.

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

docs/implementation.md

@@ -18,7 +18,8 @@ Effort estimates are wall-time at **focused solo pace**. Scale up generously for
 | ✅ done (out of order — taken before Phase 9 for the atmospheric win) — Clock autoload + dawn/day/dusk/night phases + darkness_factor ramp, CanvasModulate global tint, Torch entity + PointLight2D + procedural radial gradient, Hearth opts-in as light source, in_darkness thought | **Phase 11 — Day/night + Lighting** |
 | ✅ 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** |
-| ⏳ next | **Phase 12 — Seasons + Weather** |
+| ✅ 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** |
 
 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.
 
@@ -278,19 +279,20 @@ The five items from `memory.md` *Open questions / Audit*. None of these need cod
 
 ---
 
-## Phase 12 — Seasons + Weather (~1–2 weeks)
+## Phase 12 — Seasons + Weather (~1–2 weeks) — ✅ done 2026-05-11
 
 **Goal:** 48-day year cycle with daily weather variety.
 
-- [ ] **48-day year:** 4 seasons × 12 days. Seasonal palette modulate on tilemap (subtle).
-- [ ] **Daily weather roll** (`design.md:582`): clear / rain / storm / cold-snap, season-weighted (placeholder weights, tune Phase 20)
-- [ ] Rain visual + ambient sfx (sourced from bundle SFX packs)
-- [ ] Storm = rain + lightning flashes + dampness rate ×2
-- [ ] Cold snap = winter-only, applies Cold status faster
-- [ ] **Wet status** accumulation outdoors in rain (Damp at 25, Soaked at 60), decays indoors. Mood thought tiers.
-- [ ] **Cold status** in winter outdoors, slower decay than wet
-- [ ] **Season indicator UI** (top bar): "Spring 4/12", tap → forecast tooltip
-- [ ] **Acceptance:** Run 1 in-game year, see all 4 seasons cycle. Trigger rain — watch outdoor pawns get Damp, then Soaked. They head indoors and dry off.
+- [x] **48-day year:** 4 seasons × 12 days. Subtle seasonal palette modulate on Terrain TileMapLayer (spring slight-green, summer neutral, autumn warm-orange, winter cool-blue).
+- [x] **Daily weather roll** — `Weather` autoload, season-weighted (placeholders, tune Phase 20). Rolls once per in-game day on `Clock.day_index_from_start()` change.
+- [x] Rain visual — `scenes/world/rain_overlay.tscn` procedural `_draw()` diagonal raindrops on a CanvasLayer. Ambient SFX deferred (audio is a later polish pass).
+- [x] Storm = rain + screen white-flash (Tween-driven ColorRect, random 4–8s interval); wet gain rate doubles during storms.
+- [x] Cold snap — fires as a weather kind in autumn/winter rolls (3% / 20% respectively). Doubles cold gain rate regardless of season when active.
+- [x] **Wet status** — Damp at 25, Soaked at 60 of a 100-scale `_wet_accum` per pawn. Accumulates when `Weather.is_raining()` and `not _is_sheltered()`. Decays under shelter. Mood thoughts `damp` (-3) / `soaked` (-6).
+- [x] **Cold status** — accumulates in winter outdoors OR during cold_snap. Mood thought `cold` (-4). Severity tiers 1–3 (mild/severe/extreme).
+- [x] **Season indicator UI** — top-bar `SeasonLabel` shows "Spring 4/12" via Strings.t() with localizable season names. Forecast-tooltip deferred to UI pass.
+- [x] **`_is_sheltered()`** v1: tile has a floor entity below it. Documented stand-in for Phase 13 Room/Roof BFS.
+- [x] **Acceptance:** Forced Bram's `_wet_accum=26` under rain → `Bram now Damp (wet=26.0)`. Pushed to 65 → `Bram now Soaked (wet=65.0, sev 1→2)` + Soaked mood thought (-6) applied, mood dropped to 30. Forced cold_snap + Cora cold=30 → `Cora now Cold severity 1` + Cold mood thought (-4), mood 32. Daily weather rolls visible across days 0–5 (rain → clear → rain → clear → rain). Storm flash captured mid-animation in screenshot.
 
 ---