Ole-Morten Duesund
e8428de775
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>
59 lines
1.8 KiB
JavaScript
59 lines
1.8 KiB
JavaScript
'use strict';
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var $TypeError = require('es-errors/type');
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var hasOwnProperty = require('./HasOwnProperty');
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var ToInt16 = require('./ToInt16');
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var ToInt32 = require('./ToInt32');
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var ToInt8 = require('./ToInt8');
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var ToUint16 = require('./ToUint16');
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var ToUint32 = require('./ToUint32');
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var ToUint8 = require('./ToUint8');
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var ToUint8Clamp = require('./ToUint8Clamp');
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var valueToFloat32Bytes = require('../helpers/valueToFloat32Bytes');
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var valueToFloat64Bytes = require('../helpers/valueToFloat64Bytes');
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var integerToNBytes = require('../helpers/integerToNBytes');
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var tableTAO = require('./tables/typed-array-objects');
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// https://262.ecma-international.org/8.0/#table-50
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var TypeToAO = {
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__proto__: null,
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$Int8: ToInt8,
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$Uint8: ToUint8,
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$Uint8C: ToUint8Clamp,
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$Int16: ToInt16,
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$Uint16: ToUint16,
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$Int32: ToInt32,
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$Uint32: ToUint32
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};
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// https://262.ecma-international.org/8.0/#sec-numbertorawbytes
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module.exports = function NumberToRawBytes(type, value, isLittleEndian) {
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if (typeof type !== 'string' || !hasOwnProperty(tableTAO.size, '$' + type)) {
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throw new $TypeError('Assertion failed: `type` must be a TypedArray element type');
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}
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if (typeof value !== 'number') {
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throw new $TypeError('Assertion failed: `value` must be a Number');
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}
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if (typeof isLittleEndian !== 'boolean') {
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throw new $TypeError('Assertion failed: `isLittleEndian` must be a Boolean');
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}
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if (type === 'Float32') { // step 1
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return valueToFloat32Bytes(value, isLittleEndian);
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} else if (type === 'Float64') { // step 2
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return valueToFloat64Bytes(value, isLittleEndian);
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} // step 3
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var n = tableTAO.size['$' + type]; // step 3.a
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var convOp = TypeToAO['$' + type]; // step 3.b
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var intValue = convOp(value); // step 3.c
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return integerToNBytes(intValue, n, isLittleEndian); // step 3.d, 3.e, 4
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};
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