Vite + TypeScript PWA that mirrors the Android app's core features: - Pre-processed shelter data (build-time UTM33N→WGS84 conversion) - Leaflet map with shelter markers, user location, and offline tiles - Canvas compass arrow (ported from DirectionArrowView.kt) - IndexedDB shelter cache with 7-day staleness check - Service worker with CacheFirst tiles and precached app shell - i18n for en, nb, nn (ported from Android strings.xml) - iOS/Android compass handling with low-pass filter - Respects user map interaction (no auto-snap on pan/zoom) - Build revision cache-breaker for reliable SW updates Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
19 lines
607 B
JavaScript
19 lines
607 B
JavaScript
'use strict';
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var modulo = require('./modulo');
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var ToNumber = require('./ToNumber');
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var abs = require('math-intrinsics/abs');
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var floor = require('math-intrinsics/floor');
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var $isNaN = require('math-intrinsics/isNaN');
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var $isFinite = require('math-intrinsics/isFinite');
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var $sign = require('math-intrinsics/sign');
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// http://262.ecma-international.org/5.1/#sec-9.7
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module.exports = function ToUint16(value) {
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var number = ToNumber(value);
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if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
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var posInt = $sign(number) * floor(abs(number));
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return modulo(posInt, 0x10000);
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};
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