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Munzee Map Permalinks

Adds a Map Permalink button to events on the Munzee Calendar, and a better Map Link button to a Munzee's page.

当前为 2021-03-18 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name         Munzee Map Permalinks
  3. // @version      1.1
  4. // @description  Adds a Map Permalink button to events on the Munzee Calendar, and a better Map Link button to a Munzee's page.
  5. // @author       sohcah
  6. // @match        https://calendar.munzee.com/*
  7. // @match        https://munzee.com/*
  8. // @match        https://www.munzee.com/*
  9. // @grant        none
  10. // @namespace https://greasyfork.org/users/398283
  11. // ==/UserScript==
  12.  
  13.   const BITS = [16, 8, 4, 2, 1];
  14.  
  15.   const BASE32 = "0123456789bcdefghjkmnpqrstuvwxyz";
  16.   const NEIGHBORS = {
  17.     right: { even: "bc01fg45238967deuvhjyznpkmstqrwx" },
  18.     left: { even: "238967debc01fg45kmstqrwxuvhjyznp" },
  19.     top: { even: "p0r21436x8zb9dcf5h7kjnmqesgutwvy" },
  20.     bottom: { even: "14365h7k9dcfesgujnmqp0r2twvyx8zb" }
  21.   };
  22.   const BORDERS = {
  23.     right: { even: "bcfguvyz" },
  24.     left: { even: "0145hjnp" },
  25.     top: { even: "prxz" },
  26.     bottom: { even: "028b" }
  27.   };
  28.  
  29.   NEIGHBORS.bottom.odd = NEIGHBORS.left.even;
  30.   NEIGHBORS.top.odd = NEIGHBORS.right.even;
  31.   NEIGHBORS.left.odd = NEIGHBORS.bottom.even;
  32.   NEIGHBORS.right.odd = NEIGHBORS.top.even;
  33.  
  34.   BORDERS.bottom.odd = BORDERS.left.even;
  35.   BORDERS.top.odd = BORDERS.right.even;
  36.   BORDERS.left.odd = BORDERS.bottom.even;
  37.   BORDERS.right.odd = BORDERS.top.even;
  38.  
  39. (function () {
  40.   'use strict';
  41.  
  42.   function encodeGeoHash(latitude, longitude) {
  43.     var is_even = 1;
  44.     var i = 0;
  45.     var lat = []; var lon = [];
  46.     var bit = 0;
  47.     var ch = 0;
  48.     var precision = 9;
  49.     var geohash = "";
  50.     var mid;
  51.  
  52.     lat[0] = -90.0; lat[1] = 90.0;
  53.     lon[0] = -180.0; lon[1] = 180.0;
  54.  
  55.     while (geohash.length < precision) {
  56.       if (is_even) {
  57.         mid = (lon[0] + lon[1]) / 2;
  58.         if (longitude > mid) {
  59.           ch |= BITS[bit];
  60.           lon[0] = mid;
  61.         } else
  62.           lon[1] = mid;
  63.       } else {
  64.         mid = (lat[0] + lat[1]) / 2;
  65.         if (latitude > mid) {
  66.           ch |= BITS[bit];
  67.           lat[0] = mid;
  68.         } else
  69.           lat[1] = mid;
  70.       }
  71.  
  72.       is_even = !is_even;
  73.       if (bit < 4)
  74.         bit++;
  75.       else {
  76.         geohash += BASE32[ch];
  77.         bit = 0;
  78.         ch = 0;
  79.       }
  80.     }
  81.     return geohash;
  82.   }
  83.   $(() => {
  84.     setTimeout(()=>{
  85.         if($('.event-indicator')[0]) {
  86.             const link = `https://www.munzee.com/map/${encodeGeoHash(window.map.getCenter().lat, window.map.getCenter().lng)}/16.0`;
  87.             $('.event-indicator')[0].outerHTML = `<a style="color: black;" href="${link}">&nbsp;📌 Map Link</a>&nbsp;|&nbsp;` + $('.event-indicator')[0].outerHTML;
  88.         }
  89.         if($("form#gotomap input")[0]) {
  90.             const values = Array.from($("form#gotomap input")).map(i=>[i.name, i.value]);
  91.             const link = `https://www.munzee.com/map/${encodeGeoHash(Number(values.find(i=>i[0] === "latitude")[1]), Number(values.find(i=>i[0] === "longitude")[1]))}/16.0`;
  92.             $("#locationimage")[0].innerHTML = `<a href="${link}">&nbsp;📌 Map Link</a>` + $("#locationimage")[0].innerHTML;
  93.  
  94.         }
  95.     }, 2000);
  96.   })
  97. })();