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feat(ui): T-1138 regional map screen — click-through descent, fixed planetary view, windowed composite (D-226 T-1124 SS5)

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Entry per Jeroen's 2026-07-21 revision: planetary heightmap is now
FIXED — all drag-pan/wheel-zoom input removed (set_view/get_view_*
capture API survives for the golden harness); hover shows a
not-to-scale bracket reticle with the real extent labeled (a true
n=32 rectangle is sub-pixel on the planetary canvas — the honest
representation given the morph transition is deferred), and a click
that misses every city marker descends (city-click wins — one
gesture, two contextual reads, no modifier). Descent pushes a new
'district' nav screen centered on the click point's DistrictPos via
atlas_descend_geometry.district_pos_at (the pixel-to-district inverse
of the server mapping, verified against scale.rs).

Regional mode: atlas_window_viewer draws the composite (morphology x
elev_q lightness base; temp/moisture/veg toggles — temp reuses the
region-ramp colorizer exactly; Marine=6 transparent; glaciation
always-on tint matching apply_ice_tint's REAL gate, None|Light no-op,
over the amendment's looser prose — documented); pan-on-held-composite
with edge-crossing refetch + border-fade during the queue-based
derive wait; zoom never refetches. atlas_window_cache: LRU keyed
(body_id, center, n), touch-on-read, evict-only, no freshness (D-227).
atlas_window_request mirrors the generation-proxy pending-retry shape
for None-until-derived. Codec: window params omitted from the wire
when absent — byte-identical for every existing caller.

Live-verified against the T-1137 server in-worktree: real round-trip
on a GJ380c coastal district (6 fields x 1024 cells), echo staleness
guard, genuine ~1.4s background-derive wait, pan-edge refetch to an
adjacent window, cache-hit on re-descent with zero network. Full
client suite 3194/3194; gdlint clean on all 18 files.

Open follow-ups flagged in-code: header location label always falls
back to coordinates (nearest-settlement needs a join the district
window does not carry); atlas_standalone.gd's 'atlas_app.gd is never
modified' doc line is now imprecise.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
jpmschweitzer
2026-07-21 13:32:06 +02:00
co-authored by Claude Fable 5
parent 172ce124c8
commit 9e1e6db614
19 changed files with 2228 additions and 72 deletions
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client/scripts/autoloads/sim_bridge.gd
+11 -2
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@@ -425,10 +425,19 @@ func send_named_action(action_name: String, action_data: Variant = null) -> void
## Request a body's generation-cascade layers from the server (#960, D-225).
## Live mode only — sends an AtlasLayerRequest frame; the response arrives via the
## atlas_layers_received signal. No-op in test mode (no server connection).
func request_atlas_layers(body_id: String, up_to: String = "Topography") -> void:
##
## window_center/window_n (T-1138, D-226 T-1124 amendment §1): optional
## windowed district-resolution regional-map query, riding alongside any
## up_to value (the window derivation only needs TerrainAnalysis/BodyParams,
## not a specific whole-body layer to be cached first). Omitted by every
## whole-body-layer caller (show_body()'s existing request), so their wire
## traffic is byte-unchanged.
func request_atlas_layers(
body_id: String, up_to: String = "Topography", window_center: Variant = null, window_n: int = 0
) -> void:
if test_mode or _bridge == null or state != ConnectionState.CONNECTED:
return
var bytes := Protocol.encode_atlas_layer_request(body_id, up_to)
var bytes := Protocol.encode_atlas_layer_request(body_id, up_to, window_center, window_n)
if bytes.is_empty():
return
var err: int = _bridge.send_message(bytes)