69 lines
2.0 KiB
JavaScript
69 lines
2.0 KiB
JavaScript
import { EARTH_RADIUS } from '@/constants';
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export function distance(latLng1, latLng2) {
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const lat1 = (latLng1[0] * Math.PI) / 180;
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const lng1 = (latLng1[1] * Math.PI) / 180;
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const lat2 = (latLng2[0] * Math.PI) / 180;
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const lng2 = (latLng2[1] * Math.PI) / 180;
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const a = (
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(Math.sin((lat2 - lat1) / 2.0) ** 2) +
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(Math.cos(lat1) * Math.cos(lat2) * (Math.sin((lng2 - lng1) / 2.0) ** 2))
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);
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const c = 2.0 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
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return EARTH_RADIUS * c;
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}
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export function mockLocation() {
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// Over Paris
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/*
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const LAT_MIN = 48.854031;
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const LNG_MIN = 2.281279;
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const LAT_MAX = 48.886123;
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const LNG_MAX = 2.392742;
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*/
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// Over small area
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const LAT_MIN = 48.81788;
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const LNG_MIN = 2.31723;
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const LAT_MAX = 48.81952;
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const LNG_MAX = 2.32077;
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const newLocation = {
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coords: {
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accuracy: 10, // In meters
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latitude: (Math.random() * (LAT_MAX - LAT_MIN)) + LAT_MIN,
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longitude: (Math.random() * (LNG_MAX - LNG_MIN)) + LNG_MIN,
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heading: null, // 20 * (Math.PI / 180),
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},
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};
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console.log('New mock location: ', newLocation);
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return newLocation;
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}
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export function storageAvailable(type) {
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let storage;
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try {
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storage = window[type];
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const x = '__storage_test__';
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storage.setItem(x, x);
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storage.removeItem(x);
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return true;
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} catch (e) {
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return e instanceof DOMException && (
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// everything except Firefox
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e.code === 22 ||
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// Firefox
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e.code === 1014 ||
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// test name field too, because code might not be present
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// everything except Firefox
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e.name === 'QuotaExceededError' ||
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// Firefox
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e.name === 'NS_ERROR_DOM_QUOTA_REACHED') &&
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// acknowledge QuotaExceededError only if there's something already stored
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storage.length !== 0;
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}
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}
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