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feat(simulation): wire region climate layer into the cascade + proxy (T-1113, D-243)

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CascadeLayer::Region appended per the enum's append-only Ord rule (depends only on seed/body_params/heightmap dims — documented); BodyWorldState.regions BTreeMap per the districts precedent; RegionGridLayer dense row-major all-integer encoding (season/weather repr(u8) discriminants, mean_temp deci-degC i16 with i16::MIN airless sentinel, moisture_q u8); build_region_grid mirrors build_district_grid; protocol.gd region_grid passthrough (visual overlay deliberately out of scope); wire fixtures regenerated via make fixtures. atlas:: suite 507 green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-07-16 18:51:43 +02:00
co-authored by Claude Fable 5
parent c2f236e26e
commit 4f52abd532
10 changed files with 330 additions and 18 deletions
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client/scripts/protocol/protocol.gd
+7 -5
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@@ -774,11 +774,12 @@ static func decode_atlas_layer_response(bytes: PackedByteArray) -> Variant:
## road_graph/settlements (T-960): passthrough fields for the L2 road/rail
## graph and L3 settlement placements, mirroring the district_grid precedent
## (T-1046) — raw decoded maps/arrays, no further client-side reshaping.
## Key names "road_graph"/"settlements" are the CONFIRMED wire contract —
## identical to server/src/atlas/layer_proxy.rs AtlasLayerResponse's field
## names (pinned 2026-07-14; round-tripped by test_atlas_overlays.gd and the
## server's msgpack round-trip tests). This remains the one client-side spot
## to touch if the contract ever changes.
## region_grid (T-1113): the region climate grid, same passthrough pattern.
## Key names "road_graph"/"settlements"/"region_grid" are the CONFIRMED wire
## contract — identical to server/src/atlas/layer_proxy.rs AtlasLayerResponse's
## field names (pinned 2026-07-14; round-tripped by test_atlas_overlays.gd and
## the server's msgpack round-trip tests). This remains the one client-side
## spot to touch if the contract ever changes.
static func atlas_response_from_raw(raw: Variant) -> Variant:
if not raw is Dictionary or not raw.has("status"):
return null
@@ -798,6 +799,7 @@ static func atlas_response_from_raw(raw: Variant) -> Variant:
"district_grid": raw.get("district_grid"),
"road_graph": raw.get("road_graph"),
"settlements": raw.get("settlements"),
"region_grid": raw.get("region_grid"),
}