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German KhokhlovandClaude Opus 5.5
20f4cf3763
- i18n scanner: lastError sink, no false sinks on defaults and ternaries - shared src/i18n/marker.js for modules that only mark strings - wind field messages move to wind/fields.js; CITY_POIS imports from cityPois.js - drop review IDs, change history and stale references from comments and docs Co-Authored-By: Claude Opus 5.5 <[email protected]>
75 lines
2.9 KiB
JavaScript
75 lines
2.9 KiB
JavaScript
/**
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* @module hudLocality
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* @description The locality half of the HUD summary line — either "NEAR <landmark>"
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* or the "SECTOR <lat/lon>" fallback.
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*
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* Split out of `hud.js` purely so it is unit-testable: `hud.js` pulls in the `mgrs`
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* CommonJS package, which Vite resolves but plain Node cannot import by named export.
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*/
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/**
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* Maximum distance to a curated POI that still reads as "NEAR" it.
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*
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* The 2026-08-20 QA hunt found the HUD announcing NEAR SACRE-COEUR (PARIS) 2470KM
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* while parked over Moscow, and NEAR LINCOLN MEMORIAL 962KM over Chicago — the old
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* bound was 2,500 km, roughly a continent. The POI catalogue only covers eight
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* cities, so anywhere else on Earth matched whichever landmark happened to be
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* closest and reported an absurd distance as if it were a locality.
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*
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* 150 km is metro scale: a camera over San Francisco still reads NEAR ALCATRAZ, a
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* camera over DC still reads NEAR its monuments, and Chicago (962 km from the
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* nearest catalogued POI) correctly falls through to the SECTOR readout that
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* already worked for Honolulu and Rio.
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*/
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export const NEAR_POI_MAX_KM = 150;
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/** The English locality line; the HUD passes hudLocalityFormat.js instead. */
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const ENGLISH_LOCALITY = Object.freeze({
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near: ({ poi, city, distKm }) =>
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`NEAR ${poi.toUpperCase()} (${city.toUpperCase()}) ${Math.round(distKm)}KM`,
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sector: ({ latDeg, lonDeg }) =>
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`SECTOR ${coordinateTag(latDeg, 'N', 'S')} ${coordinateTag(lonDeg, 'E', 'W')}`,
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});
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/**
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* Format one hemisphere-tagged coordinate, e.g. `21.33N` / `157.80W`.
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* @param {number} value Signed decimal degrees.
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* @param {string} positive Suffix when the value is >= 0.
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* @param {string} negative Suffix when the value is < 0.
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* @returns {string}
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*/
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function coordinateTag(value, positive, negative) {
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return `${Math.abs(value).toFixed(2)}${value >= 0 ? positive : negative}`;
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}
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/**
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* Build the locality tag for the HUD summary line.
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*
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* @param {{poi: string, city: string, distKm: number}|null|undefined} nearest
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* Closest catalogued POI with its great-circle distance, or null when the
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* catalogue is empty.
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* @param {number} latDeg Camera latitude in decimal degrees.
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* @param {number} lonDeg Camera longitude in decimal degrees.
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* @param {{near: Function, sector: Function}} [format] Builds the line from
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* `{ poi, city, distKm }` or `{ latDeg, lonDeg }`; names arrive as
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* catalogued (`Tokyo`), not upper-cased.
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* @returns {string} `NEAR <POI> (<CITY>) <N>KM` within the bound (inclusive),
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* otherwise `SECTOR <lat> <lon>`.
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*/
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export function composeLocalityTag(
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nearest,
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latDeg,
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lonDeg,
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format = ENGLISH_LOCALITY,
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) {
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const distKm = Number(nearest?.distKm);
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if (nearest && Number.isFinite(distKm) && distKm <= NEAR_POI_MAX_KM) {
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return format.near({
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poi: String(nearest.poi),
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city: String(nearest.city),
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distKm,
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});
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}
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return format.sector({ latDeg, lonDeg });
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}
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