California gets roads, traffic, and a car to follow

2026-08-11 18:24:53 -07:00
parent 9c9e78f6f9
commit fe58290728
43 changed files with 5593 additions and 68 deletions
@@ -0,0 +1,149 @@
+/**
+ * California at corridor scale: Los Angeles to San Francisco.
+ *
+ * This is deliberately sparse. San Francisco and Southern California remain
+ * the detailed boards; this one is the connective tissue between them. A
+ * roughly two-kilometre height cell and a handful of range-scale hills keep the
+ * state readable without pretending a 600 km drive is one city mesh.
+ */
+
+import CALIFORNIA_TRANSPORT from "../transport/california.ts";
+import type { City, LatLng } from "../engine/types.ts";
+
+function routePath(routeId: string): LatLng[] {
+  const route = CALIFORNIA_TRANSPORT.routes.find((candidate) => candidate.id === routeId);
+  if (!route) throw new Error(`california: missing transport route "${routeId}"`);
+  const segments = new Map(CALIFORNIA_TRANSPORT.segments.map((segment) => [segment.id, segment]));
+  const nodes = new Map(CALIFORNIA_TRANSPORT.nodes.map((node) => [node.id, node]));
+  const points: LatLng[] = [];
+  for (const id of route.segmentIds) {
+    const segment = segments.get(id);
+    if (!segment) continue;
+    const from = nodes.get(segment.fromNodeId)?.position;
+    const to = nodes.get(segment.toNodeId)?.position;
+    if (!from || !to) continue;
+    if (points.length === 0) points.push([from.lat, from.lng]);
+    points.push([to.lat, to.lng]);
+  }
+  return points;
+}
+
+export const CALIFORNIA_US_101 = routePath("la-sf-us-101");
+export const CALIFORNIA_I_5 = routePath("la-sf-i-5");
+
+/**
+ * Original, hand-authored coast silhouette for this coarse board. It is a
+ * visual boundary, not survey data; the eastern and northern edges close well
+ * outside the route so the heightfield's coastal falloff stays off the road.
+ */
+export const CORRIDOR_LAND: LatLng[] = [
+  [38.2, -123.35],
+  [37.92, -122.74],
+  [37.79, -122.5],
+  [37.45, -122.43],
+  [37.08, -122.28],
+  [36.62, -121.94],
+  [36.15, -121.7],
+  [35.65, -121.23],
+  [35.18, -120.85],
+  [34.72, -120.64],
+  [34.42, -120.48],
+  [34.18, -119.95],
+  [34.03, -118.74],
+  [33.72, -118.15],
+  [33.35, -117.72],
+  [33.1, -117.38],
+  [33.05, -117.1],
+  [38.25, -117.1],
+];
+
+export const CALIFORNIA_CITY: City = {
+  id: "california",
+  name: "California",
+  center: { lat: 35.66, lng: -120.15 },
+  bounds: { minLat: 33.15, maxLat: 38.05, minLng: -123.05, maxLng: -117.55 },
+  latScale: 58,
+  verticalExaggeration: 2.25,
+  // About 2.2 km. This board is a route atlas; city detail lives one level in.
+  cellLat: 0.02,
+  cellLng: 0.024,
+  coastFalloff: 0.025,
+  landmasses: [CORRIDOR_LAND],
+  parks: [],
+  inlandWater: [],
+  hills: [
+    { name: "Santa Monica Mountains", lat: 34.12, lng: -118.65, elevation: 900, radius: 0.34 },
+    { name: "San Emigdio Mountains", lat: 34.88, lng: -119.05, elevation: 2_000, radius: 0.48 },
+    { name: "Temblor Range", lat: 35.36, lng: -119.83, elevation: 1_300, radius: 0.56 },
+    { name: "Santa Lucia Range", lat: 35.75, lng: -121.25, elevation: 1_580, radius: 0.7 },
+    { name: "Diablo Range", lat: 36.63, lng: -121.18, elevation: 1_300, radius: 0.8 },
+    { name: "Mount Hamilton", lat: 37.34, lng: -121.64, elevation: 1_280, radius: 0.34 },
+    { name: "Santa Cruz Mountains", lat: 37.18, lng: -122.18, elevation: 1_150, radius: 0.52 },
+  ],
+  districts: [],
+  landmarks: [
+    { name: "Los Angeles", lat: 34.0522, lng: -118.2437, height: 1_100, footprint: 0.055, shape: "tower", color: 0x9b856b, label: true },
+    { name: "San Francisco", lat: 37.7749, lng: -122.4194, height: 1_000, footprint: 0.05, shape: "tower", color: 0x8799a8, label: true },
+  ],
+  bridges: [],
+  roads: [
+    { path: CALIFORNIA_US_101, width: 1, kind: "freeway" },
+    { path: CALIFORNIA_I_5, width: 1.06, kind: "freeway" },
+  ],
+  chapters: [
+    {
+      id: "california-overview",
+      label: "California",
+      shortLabel: "State",
+      number: "01",
+      description: "Los Angeles and San Francisco joined as one living route board.",
+      focus: { lat: 35.66, lng: -120.15, distance: 370, height: 320, rotation: 0.68 },
+    },
+    {
+      id: "la-sf-us-101",
+      label: "US-101",
+      shortLabel: "101",
+      number: "02",
+      description: "Follow the black Model X up the coast and Salinas Valley through Santa Barbara and San Jose.",
+      focus: { lat: 35.8, lng: -121.04, distance: 112, height: 72, rotation: 0.8 },
+    },
+    {
+      id: "la-sf-i-5",
+      label: "I-5 · I-580 · I-80",
+      shortLabel: "I-5",
+      number: "03",
+      description: "Follow the black Model X through the Central Valley, then the honest Bay approach over I-580 and I-80.",
+      focus: { lat: 36.15, lng: -120.15, distance: 105, height: 70, rotation: 0.78 },
+    },
+    {
+      id: "los-angeles",
+      label: "Los Angeles",
+      shortLabel: "LA",
+      number: "04",
+      description: "The southern door into Tera's detailed Southern California board.",
+      focus: { lat: 34.0522, lng: -118.2437, distance: 38, height: 26, rotation: 0.8 },
+    },
+    {
+      id: "san-francisco",
+      label: "San Francisco",
+      shortLabel: "SF",
+      number: "05",
+      description: "The northern door into the detailed Bay Area board and Lumbridge HQ.",
+      focus: { lat: 37.7749, lng: -122.4194, distance: 38, height: 26, rotation: 0.8 },
+    },
+  ],
+  palette: {
+    skyTop: 0x7da6c9,
+    skyHorizon: 0xe9d8bb,
+    sea: 0x477891,
+    lake: 0x527f91,
+    shore: 0xc9b789,
+    sand: 0xd9c693,
+    flats: 0xb7a16c,
+    upland: 0x9a8155,
+    park: 0x66764c,
+    parkHigh: 0x485d43,
+  },
+};
+
+export default CALIFORNIA_CITY;