770 lines
27 KiB
JavaScript
770 lines
27 KiB
JavaScript
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// MAP DATA //////////////////////////////////////////////////////////
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// these functions handle how and which entities are displayed on the
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// map. They also keep them up to date, unless interrupted by user
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// action.
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// cache for data tiles. indexed by the query key (qk)
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window._requestCache = {}
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// cache entries older than the fresh age, and younger than the max age, are stale. they're used in the case of an error from the server
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window.REQUEST_CACHE_FRESH_AGE = 2*60; // if younger than this, use data in the cache rather than fetching from the server
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window.REQUEST_CACHE_MAX_AGE = 15*60; // maximum cache age. entries are deleted from the cache after this time
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window.storeDataCache = function(qk,data) {
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var d = new Date();
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window._requestCache[qk] = { time: d.getTime(), data: data };
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}
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window.getDataCache = function(qk) {
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if (qk in window._requestCache) {
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return window._requestCache[qk].data;
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}
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return undefined;
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}
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window.isDataCacheFresh = function(qk) {
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if (qk in window._requestCache) {
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var d = new Date();
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var t = d.getTime()-REQUEST_CACHE_FRESH_AGE*1000;
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if (window._requestCache[qk].time > t) {
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return true;
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}
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}
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return false;
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}
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window.expireDataCache = function() {
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// TODO: add a limit on the maximum number of cache entries, and start expiring them sooner than the expiry time
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// (might also make sense to approximate the size of cache entries, and have an overall size limit?)
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var d = new Date();
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var t = d.getTime()-window.REQUEST_CACHE_MAX_AGE*1000;
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for(var qk in window._requestCache) {
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if (window._requestCache[qk].time < t) {
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delete window._requestCache[qk];
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}
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}
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}
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// requests map data for current viewport. For details on how this
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// works, refer to the description in “MAP DATA REQUEST CALCULATORS”
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window.requestData = function() {
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console.log('refreshing data');
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requests.abort();
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cleanUp();
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expireDataCache();
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//a limit on the number of map tiles to be pulled in a single request
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var MAX_TILES_PER_BUCKET = 20;
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var bounds = clampLatLngBounds(map.getBounds());
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//we query the server as if the zoom level was this. it may not match the actual map zoom level
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var z = getPortalDataZoom();
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console.log('requesting tiles at zoom '+z+' (L'+getMinPortalLevelForZoom(z)+'+ portals), map zoom is '+map.getZoom());
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var x1 = lngToTile(bounds.getWest(), z);
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var x2 = lngToTile(bounds.getEast(), z);
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var y1 = latToTile(bounds.getNorth(), z);
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var y2 = latToTile(bounds.getSouth(), z);
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// will group requests by second-last quad-key quadrant
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tiles = {};
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fullBucketCount = 0;
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var cachedData = { result: { map: {} } };
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var requestTileCount = 0;
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// walk in x-direction, starts right goes left
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for (var x = x1; x <= x2; x++) {
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for (var y = y1; y <= y2; y++) {
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var tile_id = pointToTileId(z, x, y);
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if (isDataCacheFresh(tile_id)) {
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cachedData.result.map[tile_id] = getDataCache(tile_id);
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} else {
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var bucket = (Math.floor(x/2) % 2) + ":" + (Math.floor(y/2) % 2);
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if (!tiles[bucket]) {
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//create empty bucket
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tiles[bucket] = [];
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}
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else if(tiles[bucket].length >= MAX_TILES_PER_BUCKET) {
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//too many items in bucket. rename it, and create a new empty one
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tiles[bucket+'_'+fullBucketCount] = tiles[bucket];
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fullBucketCount++;
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tiles[bucket] = [];
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}
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requestTileCount++;
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tiles[bucket].push(generateBoundsParams(
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tile_id,
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tileToLat(y + 1, z),
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tileToLng(x, z),
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tileToLat(y, z),
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tileToLng(x + 1, z)
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));
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}
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}
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}
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// Reset previous result of Portal Render Limit handler
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portalRenderLimit.init();
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// process the requests from the cache
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console.log('got '+Object.keys(cachedData.result.map).length+' data tiles from cache');
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handleDataResponse(cachedData, true);
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// finally send ajax requests
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console.log('requesting '+requestTileCount+' tiles in '+Object.keys(tiles).length+' requests');
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$.each(tiles, function(ind, tls) {
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data = { zoom: z };
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data.boundsParamsList = tls;
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window.requests.add(window.postAjax('getThinnedEntitiesV2', data, function(data, textStatus, jqXHR) { window.handleDataResponse(data,false); }, window.handleFailedRequest));
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});
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}
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// Handle failed map data request
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window.handleFailedRequest = function() {
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if(requests.isLastRequest('getThinnedEntitiesV2')) {
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var leftOverPortals = portalRenderLimit.mergeLowLevelPortals(null);
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handlePortalsRender(leftOverPortals);
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}
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runHooks('requestFinished', {success: false});
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}
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// works on map data response and ensures entities are drawn/updated.
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window.handleDataResponse = function(data, fromCache) {
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// remove from active ajax queries list
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if(!data || !data.result) {
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window.failedRequestCount++;
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console.warn(data);
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handleFailedRequest();
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return;
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}
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var m = data.result.map;
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// defer rendering of portals because there is no z-index in SVG.
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// this means that what’s rendered last ends up on top. While the
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// portals can be brought to front, this costs extra time. They need
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// to be in the foreground, or they cannot be clicked. See
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// https://github.com/Leaflet/Leaflet/issues/185
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var ppp = {};
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var p2f = {};
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$.each(m, function(qk, val) {
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if('error' in val) {
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console.log('map data tile '+qk+' response error: '+val.error);
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// try to use data in the cache, even if it's stale
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val = getDataCache(qk);
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if (!val) {
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// no data in cache for this tile - skip it
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return true; // $.each 'continue'
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} else {
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console.log('(using stale cache entry for map tile)');
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}
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}
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if (!fromCache) storeDataCache(qk,val);
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$.each(val.deletedGameEntityGuids || [], function(ind, guid) {
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if(getTypeByGuid(guid) === TYPE_FIELD && window.fields[guid] !== undefined) {
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$.each(window.fields[guid].options.vertices, function(ind, vertex) {
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if(window.portals[vertex.guid] === undefined) return true;
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fieldArray = window.portals[vertex.guid].options.details.portalV2.linkedFields;
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fieldArray.splice($.inArray(guid, fieldArray), 1);
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});
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}
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window.removeByGuid(guid);
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});
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$.each(val.gameEntities || [], function(ind, ent) {
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// ent = [GUID, id(?), details]
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// format for links: { controllingTeam, creator, edge }
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// format for portals: { controllingTeam, turret }
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if(ent[2].turret !== undefined) {
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var latlng = [ent[2].locationE6.latE6/1E6, ent[2].locationE6.lngE6/1E6];
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if(!window.getPaddedBounds().contains(latlng)
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&& selectedPortal !== ent[0]
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&& urlPortal !== ent[0]
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&& !(urlPortalLL && urlPortalLL[0] === latlng[0] && urlPortalLL[1] === latlng[1])
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) return;
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if('imageByUrl' in ent[2] && 'imageUrl' in ent[2].imageByUrl) {
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if(window.location.protocol === 'https:') {
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ent[2].imageByUrl.imageUrl = ent[2].imageByUrl.imageUrl.indexOf('www.panoramio.com') !== -1
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? ent[2].imageByUrl.imageUrl.replace(/^http:\/\/www/, 'https://ssl').replace('small', 'medium')
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: ent[2].imageByUrl.imageUrl.replace(/^http:\/\//, '//');
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}
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} else {
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ent[2].imageByUrl = {'imageUrl': DEFAULT_PORTAL_IMG};
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}
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ppp[ent[0]] = ent; // delay portal render
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} else if(ent[2].edge !== undefined) {
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renderLink(ent);
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} else if(ent[2].capturedRegion !== undefined) {
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$.each(ent[2].capturedRegion, function(ind, vertex) {
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if(p2f[vertex.guid] === undefined)
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p2f[vertex.guid] = new Array();
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p2f[vertex.guid].push(ent[0]);
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});
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renderField(ent);
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} else {
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throw('Unknown entity: ' + JSON.stringify(ent));
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}
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});
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});
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$.each(ppp, function(ind, portal) {
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// when both source and destination portal are in the same response, no explicit 'edge' is returned
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// instead, we need to reconstruct them from the data within the portal details
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if ('portalV2' in portal[2] && 'linkedEdges' in portal[2].portalV2) {
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$.each(portal[2].portalV2.linkedEdges, function (ind, edge) {
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if (!ppp[edge.otherPortalGuid])
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return;
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renderLink([
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edge.edgeGuid,
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portal[1],
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{
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"controllingTeam": portal[2].controllingTeam,
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"edge": {
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"destinationPortalGuid": edge.isOrigin ? ppp[edge.otherPortalGuid][0] : portal[0],
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"destinationPortalLocation": edge.isOrigin ? ppp[edge.otherPortalGuid][2].locationE6 : portal[2].locationE6,
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"originPortalGuid": !edge.isOrigin ? ppp[edge.otherPortalGuid][0] : portal[0],
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"originPortalLocation": !edge.isOrigin ? ppp[edge.otherPortalGuid][2].locationE6 : portal[2].locationE6
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},
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}
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]);
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});
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}
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if(portal[2].portalV2['linkedFields'] === undefined) {
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portal[2].portalV2['linkedFields'] = [];
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}
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if(p2f[portal[0]] !== undefined) {
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$.merge(p2f[portal[0]], portal[2].portalV2['linkedFields']);
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portal[2].portalV2['linkedFields'] = uniqueArray(p2f[portal[0]]);
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}
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});
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// Process the portals with portal render limit handler first
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// Low level portal will hold until last request
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var newPpp = portalRenderLimit.splitOrMergeLowLevelPortals(ppp);
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// Clean up level of portal which over render limit after portalRenderLimit handler counted the new portals
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portalRenderLimit.cleanUpOverLimitPortalLevel();
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handlePortalsRender(newPpp);
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resolvePlayerNames();
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renderUpdateStatus();
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runHooks('requestFinished', {success: true});
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}
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window.handlePortalsRender = function(portals) {
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var portalInUrlAvailable = false;
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// Preserve selectedPortal because it will get lost on re-rendering
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// the portal
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var oldSelectedPortal = selectedPortal;
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runHooks('portalDataLoaded', {portals : portals});
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$.each(portals, function(guid, portal) {
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//~ if(selectedPortal === portal[0]) portalUpdateAvailable = true;
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if(urlPortalLL && urlPortalLL[0] === portal[2].locationE6.latE6/1E6 && urlPortalLL[1] === portal[2].locationE6.lngE6/1E6) {
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urlPortal = guid;
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portalInUrlAvailable = true;
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urlPortalLL = null;
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}
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if(window.portals[guid]) {
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highlightPortal(window.portals[guid]);
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}
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renderPortal(portal);
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});
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// restore selected portal if still available
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var selectedPortalGroup = portals[oldSelectedPortal];
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if(selectedPortalGroup) {
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selectedPortal = oldSelectedPortal;
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renderPortalDetails(selectedPortal);
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try {
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selectedPortalGroup.bringToFront();
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} catch(e) { /* portal is now visible, catch Leaflet error */ }
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}
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if(portalInUrlAvailable) {
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renderPortalDetails(urlPortal);
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urlPortal = null; // select it only once
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}
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}
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// removes entities that are still handled by Leaflet, although they
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// do not intersect the current viewport.
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window.cleanUp = function() {
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var cnt = [0,0,0];
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var b = getPaddedBounds();
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var minlvl = getMinPortalLevel();
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for(var i = 0; i < portalsLayers.length; i++) {
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// i is also the portal level
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portalsLayers[i].eachLayer(function(item) {
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var itemGuid = item.options.guid;
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// check if 'item' is a portal
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if(getTypeByGuid(itemGuid) != TYPE_PORTAL) return true;
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// portal must be in bounds and have a high enough level. Also don’t
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// remove if it is selected.
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if(itemGuid == window.selectedPortal ||
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(b.contains(item.getLatLng()) && i >= minlvl)) return true;
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cnt[0]++;
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portalsLayers[i].removeLayer(item);
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});
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}
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linksLayer.eachLayer(function(link) {
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if(b.intersects(link.getBounds())) return;
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cnt[1]++;
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linksLayer.removeLayer(link);
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});
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fieldsLayer.eachLayer(function(fieldgroup) {
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fieldgroup.eachLayer(function(item) {
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if(!item.options.guid) return true; // Skip MU div container as this doesn't have the bounds we need
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if(b.intersects(item.getBounds())) return;
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cnt[2]++;
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fieldsLayer.removeLayer(fieldgroup);
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});
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});
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console.log('removed out-of-bounds: '+cnt[0]+' portals, '+cnt[1]+' links, '+cnt[2]+' fields');
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}
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// removes given entity from map
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window.removeByGuid = function(guid) {
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switch(getTypeByGuid(guid)) {
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case TYPE_PORTAL:
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if(!window.portals[guid]) return;
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var p = window.portals[guid];
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for(var i = 0; i < portalsLayers.length; i++)
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portalsLayers[i].removeLayer(p);
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break;
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case TYPE_LINK:
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if(!window.links[guid]) return;
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linksLayer.removeLayer(window.links[guid]);
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break;
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case TYPE_FIELD:
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if(!window.fields[guid]) return;
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fieldsLayer.removeLayer(window.fields[guid]);
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break;
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case TYPE_RESONATOR:
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if(!window.resonators[guid]) return;
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var r = window.resonators[guid];
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for(var i = 1; i < portalsLayers.length; i++)
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portalsLayers[i].removeLayer(r);
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break;
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default:
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console.warn('unknown GUID type: ' + guid);
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//window.debug.printStackTrace();
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}
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}
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// renders a portal on the map from the given entity
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window.renderPortal = function(ent) {
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if(Object.keys(portals).length >= MAX_DRAWN_PORTALS && ent[0] !== selectedPortal)
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return removeByGuid(ent[0]);
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// hide low level portals on low zooms
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var portalLevel = getPortalLevel(ent[2]);
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if(portalLevel < getMinPortalLevel() && ent[0] !== selectedPortal)
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return removeByGuid(ent[0]);
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var team = getTeam(ent[2]);
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// do nothing if portal did not change
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var layerGroup = portalsLayers[parseInt(portalLevel)];
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var old = findEntityInLeaflet(layerGroup, window.portals, ent[0]);
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if(!changing_highlighters && old) {
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var oo = old.options;
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// Default checks to see if a portal needs to be re-rendered
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var u = oo.team !== team;
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u = u || oo.level !== portalLevel;
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// Allow plugins to add additional conditions as to when a portal gets re-rendered
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var hookData = {portal: ent[2], oldPortal: oo.details, portalGuid: ent[0], reRender: false};
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runHooks('beforePortalReRender', hookData);
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u = u || hookData.reRender;
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// nothing changed that requires re-rendering the portal.
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if(!u) {
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// let resos handle themselves if they need to be redrawn
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renderResonators(ent[0], ent[2], old);
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// update stored details for portal details in sidebar.
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old.options.details = ent[2];
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return;
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}
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}
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// there were changes, remove old portal. Don’t put this in old, in
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// case the portal changed level and findEntityInLeaflet doesn’t find
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// it.
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removeByGuid(ent[0]);
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var latlng = [ent[2].locationE6.latE6/1E6, ent[2].locationE6.lngE6/1E6];
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// pre-loads player names for high zoom levels
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loadPlayerNamesForPortal(ent[2]);
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var lvWeight = Math.max(2, Math.floor(portalLevel) / 1.5);
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var lvRadius = Math.floor(portalLevel) + 4;
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if(team === window.TEAM_NONE) {
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lvRadius = 7;
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}
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var p = L.circleMarker(latlng, {
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radius: lvRadius + (L.Browser.mobile ? PORTAL_RADIUS_ENLARGE_MOBILE : 0),
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color: ent[0] === selectedPortal ? COLOR_SELECTED_PORTAL : COLORS[team],
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opacity: 1,
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weight: lvWeight,
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fillColor: COLORS[team],
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fillOpacity: 0.5,
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clickable: true,
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level: portalLevel,
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team: team,
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ent: ent,
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details: ent[2],
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guid: ent[0]});
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p.on('remove', function() {
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var portalGuid = this.options.guid
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// remove attached resonators, skip if
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// all resonators have already removed by zooming
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if(isResonatorsShow()) {
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for(var i = 0; i <= 7; i++)
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removeByGuid(portalResonatorGuid(portalGuid, i));
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}
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delete window.portals[portalGuid];
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if(window.selectedPortal === portalGuid) {
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window.unselectOldPortal();
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}
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});
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p.on('add', function() {
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// enable for debugging
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if(window.portals[this.options.guid]) throw('duplicate portal detected');
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window.portals[this.options.guid] = this;
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window.renderResonators(this.options.guid, this.options.details, this);
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// handles the case where a selected portal gets removed from the
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// map by hiding all portals with said level
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if(window.selectedPortal !== this.options.guid)
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window.portalResetColor(this);
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});
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p.on('click', function() { window.renderPortalDetails(ent[0]); });
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p.on('dblclick', function() {
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window.renderPortalDetails(ent[0]);
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window.map.setView(latlng, 17);
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});
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highlightPortal(p);
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window.runHooks('portalAdded', {portal: p});
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p.addTo(layerGroup);
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||
}
|
||
|
||
window.renderResonators = function(portalGuid, portalDetails, portalLayer) {
|
||
if(!isResonatorsShow()) return;
|
||
|
||
// only draw when the portal is not hidden
|
||
if(portalLayer && !window.map.hasLayer(portalLayer)) return;
|
||
|
||
var portalLevel = getPortalLevel(portalDetails);
|
||
var portalLatLng = [portalDetails.locationE6.latE6/1E6, portalDetails.locationE6.lngE6/1E6];
|
||
|
||
var reRendered = false;
|
||
$.each(portalDetails.resonatorArray.resonators, function(i, rdata) {
|
||
// skip if resonator didn't change
|
||
var oldRes = window.resonators[portalResonatorGuid(portalGuid, i)];
|
||
if(oldRes) {
|
||
if(isSameResonator(oldRes.options.details, rdata)) return true;
|
||
// remove old resonator if exist
|
||
removeByGuid(oldRes.options.guid);
|
||
}
|
||
|
||
// skip and remove old resonator if no new resonator
|
||
if(rdata === null) return true;
|
||
|
||
var resoLatLng = getResonatorLatLng(rdata.distanceToPortal, rdata.slot, portalLatLng);
|
||
var resoGuid = portalResonatorGuid(portalGuid, i);
|
||
|
||
// the resonator
|
||
var resoStyle =
|
||
portalGuid === selectedPortal ? OPTIONS_RESONATOR_SELECTED : OPTIONS_RESONATOR_NON_SELECTED;
|
||
var resoProperty = $.extend({
|
||
fillColor: COLORS_LVL[rdata.level],
|
||
fillOpacity: rdata.energyTotal/RESO_NRG[rdata.level],
|
||
guid: resoGuid
|
||
}, resoStyle);
|
||
|
||
var reso = L.circleMarker(resoLatLng, resoProperty);
|
||
|
||
// line connecting reso to portal
|
||
var connProperty =
|
||
portalGuid === selectedPortal ? OPTIONS_RESONATOR_LINE_SELECTED : OPTIONS_RESONATOR_LINE_NON_SELECTED;
|
||
|
||
var conn = L.polyline([portalLatLng, resoLatLng], connProperty);
|
||
|
||
// put both in one group, so they can be handled by the same logic.
|
||
var r = L.layerGroup([reso, conn]);
|
||
r.options = {
|
||
level: rdata.level,
|
||
details: rdata,
|
||
pDetails: portalDetails,
|
||
guid: resoGuid
|
||
};
|
||
|
||
// However, LayerGroups (and FeatureGroups) don’t fire add/remove
|
||
// events, thus this listener will be attached to the resonator. It
|
||
// doesn’t matter to which element these are bound since Leaflet
|
||
// will add/remove all elements of the LayerGroup at once.
|
||
reso.on('remove', function() { delete window.resonators[this.options.guid]; });
|
||
reso.on('add', function() {
|
||
if(window.resonators[this.options.guid]) throw('duplicate resonator detected');
|
||
window.resonators[this.options.guid] = r;
|
||
});
|
||
|
||
r.addTo(portalsLayers[parseInt(portalLevel)]);
|
||
reRendered = true;
|
||
});
|
||
// if there is any resonator re-rendered, bring portal to front
|
||
if(reRendered && portalLayer) portalLayer.bringToFront();
|
||
}
|
||
|
||
// append portal guid with -resonator-[slot] to get guid for resonators
|
||
window.portalResonatorGuid = function(portalGuid, slot) {
|
||
return portalGuid + '-resonator-' + slot;
|
||
}
|
||
|
||
window.isResonatorsShow = function() {
|
||
return map.getZoom() >= RESONATOR_DISPLAY_ZOOM_LEVEL;
|
||
}
|
||
|
||
window.isSameResonator = function(oldRes, newRes) {
|
||
if(!oldRes && !newRes) return true;
|
||
if(!oldRes || !newRes) return false;
|
||
if(typeof oldRes !== typeof newRes) return false;
|
||
if(oldRes.level !== newRes.level) return false;
|
||
if(oldRes.energyTotal !== newRes.energyTotal) return false;
|
||
if(oldRes.distanceToPortal !== newRes.distanceToPortal) return false;
|
||
return true;
|
||
}
|
||
|
||
window.portalResetColor = function(portal) {
|
||
portal.setStyle({color: COLORS[getTeam(portal.options.details)]});
|
||
resonatorsResetStyle(portal.options.guid);
|
||
}
|
||
|
||
window.resonatorsResetStyle = function(portalGuid) {
|
||
window.resonatorsSetStyle(portalGuid, OPTIONS_RESONATOR_NON_SELECTED, OPTIONS_RESONATOR_LINE_NON_SELECTED);
|
||
}
|
||
|
||
window.resonatorsSetSelectStyle = function(portalGuid) {
|
||
window.resonatorsSetStyle(portalGuid, OPTIONS_RESONATOR_SELECTED, OPTIONS_RESONATOR_LINE_SELECTED);
|
||
}
|
||
|
||
window.resonatorsSetStyle = function(portalGuid, resoStyle, lineStyle) {
|
||
for(var i = 0; i < 8; i++) {
|
||
resonatorLayerGroup = resonators[portalResonatorGuid(portalGuid, i)];
|
||
if(!resonatorLayerGroup) continue;
|
||
// bring resonators and their connection lines to front separately.
|
||
// this way the resonators are drawn on top of the lines.
|
||
resonatorLayerGroup.eachLayer(function(layer) {
|
||
if (!layer.options.guid) // Resonator line
|
||
layer.bringToFront().setStyle(lineStyle);
|
||
});
|
||
resonatorLayerGroup.eachLayer(function(layer) {
|
||
if (layer.options.guid) // Resonator
|
||
layer.bringToFront().setStyle(resoStyle);
|
||
});
|
||
}
|
||
portals[portalGuid].bringToFront();
|
||
}
|
||
|
||
// renders a link on the map from the given entity
|
||
window.renderLink = function(ent) {
|
||
if(Object.keys(links).length >= MAX_DRAWN_LINKS)
|
||
return removeByGuid(ent[0]);
|
||
|
||
// some links are constructed from portal linkedEdges data. These have no valid 'creator' data.
|
||
// replace with the more detailed data
|
||
// (we assume the other values - coordinates, etc - remain unchanged)
|
||
var found=findEntityInLeaflet(linksLayer, links, ent[0]);
|
||
if (found) {
|
||
if (!found.options.data.creator && ent[2].creator) {
|
||
//our existing data has no creator, but the new data does - update
|
||
found.options.data = ent[2];
|
||
}
|
||
return;
|
||
}
|
||
|
||
var team = getTeam(ent[2]);
|
||
var edge = ent[2].edge;
|
||
var latlngs = [
|
||
[edge.originPortalLocation.latE6/1E6, edge.originPortalLocation.lngE6/1E6],
|
||
[edge.destinationPortalLocation.latE6/1E6, edge.destinationPortalLocation.lngE6/1E6]
|
||
];
|
||
var poly = L.polyline(latlngs, {
|
||
color: COLORS[team],
|
||
opacity: 1,
|
||
weight:2,
|
||
clickable: false,
|
||
guid: ent[0],
|
||
data: ent[2],
|
||
smoothFactor: 0 // doesn’t work for two points anyway, so disable
|
||
});
|
||
// determine which links are very short and don’t render them at all.
|
||
// in most cases this will go unnoticed, but improve rendering speed.
|
||
poly._map = window.map;
|
||
poly.projectLatlngs();
|
||
var op = poly._originalPoints;
|
||
var dist = Math.abs(op[0].x - op[1].x) + Math.abs(op[0].y - op[1].y);
|
||
if(dist <= 10) {
|
||
return;
|
||
}
|
||
|
||
if(!getPaddedBounds().intersects(poly.getBounds())) return;
|
||
|
||
poly.on('remove', function() { delete window.links[this.options.guid]; });
|
||
poly.on('add', function() {
|
||
// enable for debugging
|
||
if(window.links[this.options.guid]) throw('duplicate link detected');
|
||
window.links[this.options.guid] = this;
|
||
this.bringToBack();
|
||
});
|
||
poly.addTo(linksLayer);
|
||
}
|
||
|
||
// renders a field on the map from a given entity
|
||
window.renderField = function(ent) {
|
||
if(Object.keys(fields).length >= MAX_DRAWN_FIELDS)
|
||
return window.removeByGuid(ent[0]);
|
||
|
||
var old = findEntityInLeaflet(fieldsLayer, window.fields, ent[0]);
|
||
// If this already exists and the zoom level has not changed, we don't need to do anything
|
||
if(old && map.getZoom() === old.options.creationZoom) return;
|
||
|
||
var team = getTeam(ent[2]);
|
||
var reg = ent[2].capturedRegion;
|
||
var latlngs = [
|
||
L.latLng(reg.vertexA.location.latE6/1E6, reg.vertexA.location.lngE6/1E6),
|
||
L.latLng(reg.vertexB.location.latE6/1E6, reg.vertexB.location.lngE6/1E6),
|
||
L.latLng(reg.vertexC.location.latE6/1E6, reg.vertexC.location.lngE6/1E6)
|
||
];
|
||
|
||
var poly = L.polygon(latlngs, {
|
||
fillColor: COLORS[team],
|
||
fillOpacity: 0.25,
|
||
stroke: false,
|
||
clickable: false,
|
||
smoothFactor: 0, // hiding small fields will be handled below
|
||
guid: ent[0]});
|
||
|
||
// determine which fields are too small to be rendered and don’t
|
||
// render them, so they don’t count towards the maximum fields limit.
|
||
// This saves some DOM operations as well, but given the relatively
|
||
// low amount of fields there isn’t much to gain.
|
||
// The algorithm is the same as used by Leaflet.
|
||
poly._map = window.map;
|
||
poly.projectLatlngs();
|
||
var count = L.LineUtil.simplify(poly._originalPoints, 6).length;
|
||
if(count <= 2) return;
|
||
|
||
if(!getPaddedBounds().intersects(poly.getBounds())) return;
|
||
|
||
// Curve fit equation to normalize zoom window area
|
||
var areaZoomRatio = calcTriArea(latlngs)/Math.exp(14.2714860198866-1.384987247*map.getZoom());
|
||
var countForMUDisplay = L.LineUtil.simplify(poly._originalPoints, FIELD_MU_DISPLAY_POINT_TOLERANCE).length
|
||
|
||
// Do nothing if zoom did not change. We need to recheck the field if the
|
||
// zoom level is different then when the field was rendered as it could
|
||
// now be appropriate or not to show an MU count
|
||
if(old) {
|
||
var layerCount = 0;
|
||
old.eachLayer(function(item) {
|
||
layerCount++;
|
||
});
|
||
// Don't do anything since we already have an MU display and we still want to
|
||
if(areaZoomRatio > FIELD_MU_DISPLAY_AREA_ZOOM_RATIO && countForMUDisplay > 2 && layerCount === 2) return;
|
||
// Don't do anything since we don't have an MU display and don't want to
|
||
if(areaZoomRatio <= FIELD_MU_DISPLAY_AREA_ZOOM_RATIO && countForMUDisplay <= 2 && layerCount === 1) return;
|
||
removeByGuid(ent[0]);
|
||
}
|
||
|
||
// put both in one group, so they can be handled by the same logic.
|
||
if (areaZoomRatio > FIELD_MU_DISPLAY_AREA_ZOOM_RATIO && countForMUDisplay > 2) {
|
||
// centroid of field for placing MU count at
|
||
var centroid = [
|
||
(latlngs[0].lat + latlngs[1].lat + latlngs[2].lat)/3,
|
||
(latlngs[0].lng + latlngs[1].lng + latlngs[2].lng)/3
|
||
];
|
||
|
||
var fieldMu = L.marker(centroid, {
|
||
icon: L.divIcon({
|
||
className: 'fieldmu',
|
||
iconSize: [70,12],
|
||
html: digits(ent[2].entityScore.entityScore)
|
||
}),
|
||
clickable: false
|
||
});
|
||
var f = L.layerGroup([poly, fieldMu]);
|
||
} else {
|
||
var f = L.layerGroup([poly]);
|
||
}
|
||
f.options = {
|
||
vertices: reg,
|
||
lastUpdate: ent[1],
|
||
creationZoom: map.getZoom(),
|
||
guid: ent[0],
|
||
data: ent[2]
|
||
};
|
||
|
||
// However, LayerGroups (and FeatureGroups) don’t fire add/remove
|
||
// events, thus this listener will be attached to the field. It
|
||
// doesn’t matter to which element these are bound since Leaflet
|
||
// will add/remove all elements of the LayerGroup at once.
|
||
poly.on('remove', function() { delete window.fields[this.options.guid]; });
|
||
poly.on('add', function() {
|
||
// enable for debugging
|
||
if(window.fields[this.options.guid]) console.warn('duplicate field detected');
|
||
window.fields[this.options.guid] = f;
|
||
this.bringToBack();
|
||
});
|
||
f.addTo(fieldsLayer);
|
||
}
|
||
|
||
|
||
// looks for the GUID in either the layerGroup or entityHash, depending
|
||
// on which is faster. Will either return the Leaflet entity or null, if
|
||
// it does not exist.
|
||
// For example, to find a field use the function like this:
|
||
// field = findEntityInLeaflet(fieldsLayer, fields, 'asdasdasd');
|
||
window.findEntityInLeaflet = function(layerGroup, entityHash, guid) {
|
||
// fast way
|
||
if(map.hasLayer(layerGroup)) return entityHash[guid] || null;
|
||
|
||
// slow way in case the layer is currently hidden
|
||
var ent = null;
|
||
layerGroup.eachLayer(function(entity) {
|
||
if(entity.options.guid !== guid) return true;
|
||
ent = entity;
|
||
return false;
|
||
});
|
||
return ent;
|
||
}
|