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// MAP DATA //////////////////////////////////////////////////////////
// these functions handle how and which entities are displayed on the
// map. They also keep them up to date, unless interrupted by user
// action.
// debug - display a set of rectangles on the map representing each data tile. the colour will represent it's state
window._debugDataTileStateLayer = undefined;
window.debugDataTileReset = function() {
if (!window._debugDataTileStateLayer) {
window._debugDataTileStateLayer = L.layerGroup();
window.addLayerGroup("DEBUG Data Tiles", window._debugDataTileStateLayer, false);
}
window._debugDataTileIdToRectangle = {};
window._debugDataTileStateLayer.clearLayers();
}
window.debugCreateTile = function(qk,bounds) {
var s = {color: '#888', weight: 3, opacity: 0.7, fillColor: '#888', fillOpacity: 0.4, clickable: false};
bounds = new L.LatLngBounds(bounds);
bounds = bounds.pad(-0.02);
var l = L.rectangle(bounds,s);
window._debugDataTileIdToRectangle[qk] = l;
window._debugDataTileStateLayer.addLayer(l);
}
window.debugSetTileColour = function(qk,bordercol,fillcol) {
var l = window._debugDataTileIdToRectangle[qk];
if (l) {
var s = {color: bordercol, weight: 3, opacity: 0.3, fillColor: fillcol, fillOpacity: 0.1, clickable: false};
l.setStyle(s);
}
}
// cache for data tiles. indexed by the query key (qk)
window._requestCache = {}
// 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
window.REQUEST_CACHE_FRESH_AGE = 60; // if younger than this, use data in the cache rather than fetching from the server
window.REQUEST_CACHE_MAX_AGE = 15*60; // maximum cache age. entries are deleted from the cache after this time
window.storeDataCache = function(qk,data) {
var d = new Date();
window._requestCache[qk] = { time: d.getTime(), data: data };
}
window.getDataCache = function(qk) {
if (qk in window._requestCache) {
return window._requestCache[qk].data;
}
return undefined;
}
window.isDataCacheFresh = function(qk) {
if (qk in window._requestCache) {
var d = new Date();
var t = d.getTime()-REQUEST_CACHE_FRESH_AGE*1000;
if (window._requestCache[qk].time > t) {
return true;
}
}
return false;
}
window.expireDataCache = function() {
// TODO: add a limit on the maximum number of cache entries, and start expiring them sooner than the expiry time
// (might also make sense to approximate the size of cache entries, and have an overall size limit?)
var d = new Date();
var t = d.getTime()-window.REQUEST_CACHE_MAX_AGE*1000;
for(var qk in window._requestCache) {
if (window._requestCache[qk].time < t) {
delete window._requestCache[qk];
}
}
}
// requests map data for current viewport. For details on how this
// works, refer to the description in “MAP DATA REQUEST CALCULATORS”
window.requestData = function() {
console.log('refreshing data');
requests.abort();
cleanUp();
debugDataTileReset();
expireDataCache();
//a limit on the number of map tiles to be pulled in a single request
var MAX_TILES_PER_BUCKET = 20;
var bounds = clampLatLngBounds(map.getBounds());
//we query the server as if the zoom level was this. it may not match the actual map zoom level
var z = getPortalDataZoom();
console.log('requesting data tiles at zoom '+z+' (L'+getMinPortalLevelForZoom(z)+'+ portals), map zoom is '+map.getZoom());
var x1 = lngToTile(bounds.getWest(), z);
var x2 = lngToTile(bounds.getEast(), z);
var y1 = latToTile(bounds.getNorth(), z);
var y2 = latToTile(bounds.getSouth(), z);
// will group requests by second-last quad-key quadrant
tiles = {};
fullBucketCount = 0;
var cachedData = { result: { map: {} } };
var requestTileCount = 0;
// walk in x-direction, starts right goes left
for (var x = x1; x <= x2; x++) {
for (var y = y1; y <= y2; y++) {
var tile_id = pointToTileId(z, x, y);
var latNorth = tileToLat(y,z);
var latSouth = tileToLat(y+1,z);
var lngWest = tileToLng(x,z);
var lngEast = tileToLng(x+1,z);
debugCreateTile(tile_id,[[latSouth,lngWest],[latNorth,lngEast]]);
// TODO?: if the selected portal is in this tile, always fetch the data
if (isDataCacheFresh(tile_id)) {
// TODO: don't add tiles from the cache when 1. they were fully visible before, and 2. the zoom level is unchanged
// TODO?: if a closer zoom level has all four tiles in the cache, use them instead?
cachedData.result.map[tile_id] = getDataCache(tile_id);
debugSetTileColour(tile_id,'#0f0','#ff0');
} else {
// group requests into buckets based on the tile coordinate.
var bucket = (Math.floor(x/2)%2)+":"+(Math.floor(y/2)%2);
//some alternative/experimental bucket groupings, to see what can be done to reduce/eliminate the 'TIMEOUT' errors returned in some requests
// var bucket = Math.floor((x-x1)/8)+":"+Math.floor((y-y1)/8)+"/"+(Math.floor(x/2)%2)+":"+(Math.floor(y/2)%2);
// var bucket = Math.floor(x/4)+":"+Math.floor(y/4);
// var bucket = Math.floor(x/3)+":"+Math.floor(y/3);
if (!tiles[bucket]) {
//create empty bucket
tiles[bucket] = [];
}
else if(tiles[bucket].length >= MAX_TILES_PER_BUCKET) {
//too many items in bucket. rename it, and create a new empty one
tiles[bucket+'_'+fullBucketCount] = tiles[bucket];
fullBucketCount++;
tiles[bucket] = [];
}
requestTileCount++;
var boundsParam = generateBoundsParams(
tile_id,
latSouth,
lngWest,
latNorth,
lngEast
);
// when the server is returning 'timeout' errors for some tiles in the list, it's always the tiles
// at the end of the request. therefore, let's push tiles we don't have cache entries for to the front, and those we do to the back
if (getDataCache(tile_id)) {
// cache entry exists - push to back
tiles[bucket].push(boundsParam);
} else {
// no cache entry - unshift to front
tiles[bucket].unshift(boundsParam);
}
debugSetTileColour(tile_id,'#00f','#000');
}
}
}
// Reset previous result of Portal Render Limit handler
portalRenderLimit.init();
// send ajax requests
console.log('requesting '+requestTileCount+' tiles in '+Object.keys(tiles).length+' requests');
$.each(tiles, function(ind, tls) {
data = { zoom: z };
data.boundsParamsList = tls;
// keep a list of tile_ids with each request. in the case of a server error, we can try and use cached tiles if available
var tile_ids = []
$.each(tls,function(i,req) { tile_ids.push(req.qk); });
window.requests.add(window.postAjax('getThinnedEntitiesV2', data, function(data, textStatus, jqXHR) { window.handleDataResponse(data,false,tile_ids); }, function() { window.handleFailedRequest(tile_ids); }));
});
// process the requests from the cache
console.log('got '+Object.keys(cachedData.result.map).length+' data tiles from cache');
if(Object.keys(cachedData.result.map).length > 0) {
handleDataResponse(cachedData, true);
}
}
// Handle failed map data request
window.handleFailedRequest = function(tile_ids) {
console.log('request failed: tiles '+tile_ids.join(','));
var cachedData = { result: { map: {} } };
$.each(tile_ids, function(ind,tile_id) {
var cached = getDataCache(tile_id);
if (cached) {
// we have stale cached data - use it
cachedData.result.map[tile_id] = cached;
debugSetTileColour(tile_id,'#800','#ff0');
console.log('(using stale cache entry for map tile '+tile_id+')');
} else {
// no cached data
debugSetTileColour(tile_id,'#800','#f00');
}
});
if(Object.keys(cachedData.result.map).length > 0) {
handleDataResponse(cachedData, true);
}
if(requests.isLastRequest('getThinnedEntitiesV2')) {
var leftOverPortals = portalRenderLimit.mergeLowLevelPortals(null);
handlePortalsRender(leftOverPortals);
}
runHooks('requestFinished', {success: false});
}
// works on map data response and ensures entities are drawn/updated.
window.handleDataResponse = function(data, fromCache, tile_ids) {
// remove from active ajax queries list
if(!data || !data.result) {
window.failedRequestCount++;
console.warn(data);
handleFailedRequest(tile_ids);
return;
}
var m = data.result.map;
// defer rendering of portals because there is no z-index in SVG.
// this means that whats rendered last ends up on top. While the
// portals can be brought to front, this costs extra time. They need
// to be in the foreground, or they cannot be clicked. See
// https://github.com/Leaflet/Leaflet/issues/185
var ppp = {};
var p2f = {};
$.each(m, function(qk, val) {
// if this request wasn't from the cache, check it's status. store in the cache if good
// for debugging, we set the debug tile colours. cached tiles have colours set elsewhere so are not set here
if (!fromCache) {
if('error' in val) {
console.log('map data tile '+qk+' response error: '+val.error);
// try to use data in the cache, even if it's stale
var cacheVal = getDataCache(qk);
if (!cacheVal) {
debugSetTileColour(qk, '#f00','#f00');
// no data in cache for this tile. continue processing - it's possible it also has some valid data
} else {
val = cacheVal;
debugSetTileColour(qk, '#f00','#ff0');
console.log('(using stale cache entry for map tile '+qk+')');
}
} else {
// not an error - store this tile into the cache
storeDataCache(qk,val);
debugSetTileColour(qk, '#0f0','#0f0');
}
}
$.each(val.deletedGameEntityGuids || [], function(ind, guid) {
if(getTypeByGuid(guid) === TYPE_FIELD && window.fields[guid] !== undefined) {
$.each(window.fields[guid].options.vertices, function(ind, vertex) {
if(window.portals[vertex.guid] === undefined) return true;
fieldArray = window.portals[vertex.guid].options.details.portalV2.linkedFields;
fieldArray.splice($.inArray(guid, fieldArray), 1);
});
}
window.removeByGuid(guid);
});
$.each(val.gameEntities || [], function(ind, ent) {
// ent = [GUID, id(?), details]
// format for links: { controllingTeam, creator, edge }
// format for portals: { controllingTeam, turret }
if(ent[2].turret !== undefined) {
var latlng = [ent[2].locationE6.latE6/1E6, ent[2].locationE6.lngE6/1E6];
if(!window.getPaddedBounds().contains(latlng)
&& selectedPortal !== ent[0]
&& urlPortal !== ent[0]
&& !(urlPortalLL && urlPortalLL[0] === latlng[0] && urlPortalLL[1] === latlng[1])
) return;
if('imageByUrl' in ent[2] && 'imageUrl' in ent[2].imageByUrl) {
if(window.location.protocol === 'https:') {
ent[2].imageByUrl.imageUrl = ent[2].imageByUrl.imageUrl.indexOf('www.panoramio.com') !== -1
? ent[2].imageByUrl.imageUrl.replace(/^http:\/\/www/, 'https://ssl').replace('small', 'medium')
: ent[2].imageByUrl.imageUrl.replace(/^http:\/\//, '//');
}
} else {
ent[2].imageByUrl = {'imageUrl': DEFAULT_PORTAL_IMG};
}
ppp[ent[0]] = ent; // delay portal render
} else if(ent[2].edge !== undefined) {
renderLink(ent);
} else if(ent[2].capturedRegion !== undefined) {
$.each(ent[2].capturedRegion, function(ind, vertex) {
if(p2f[vertex.guid] === undefined)
p2f[vertex.guid] = new Array();
p2f[vertex.guid].push(ent[0]);
});
renderField(ent);
} else {
throw('Unknown entity: ' + JSON.stringify(ent));
}
});
});
$.each(ppp, function(ind, portal) {
// when both source and destination portal are in the same response, no explicit 'edge' is returned
// instead, we need to reconstruct them from the data within the portal details
if ('portalV2' in portal[2] && 'linkedEdges' in portal[2].portalV2) {
$.each(portal[2].portalV2.linkedEdges, function (ind, edge) {
if (!ppp[edge.otherPortalGuid])
return;
renderLink([
edge.edgeGuid,
portal[1],
{
"controllingTeam": portal[2].controllingTeam,
"edge": {
"destinationPortalGuid": edge.isOrigin ? ppp[edge.otherPortalGuid][0] : portal[0],
"destinationPortalLocation": edge.isOrigin ? ppp[edge.otherPortalGuid][2].locationE6 : portal[2].locationE6,
"originPortalGuid": !edge.isOrigin ? ppp[edge.otherPortalGuid][0] : portal[0],
"originPortalLocation": !edge.isOrigin ? ppp[edge.otherPortalGuid][2].locationE6 : portal[2].locationE6
},
}
]);
});
}
if(portal[2].portalV2['linkedFields'] === undefined) {
portal[2].portalV2['linkedFields'] = [];
}
if(p2f[portal[0]] !== undefined) {
$.merge(p2f[portal[0]], portal[2].portalV2['linkedFields']);
portal[2].portalV2['linkedFields'] = uniqueArray(p2f[portal[0]]);
}
});
// Process the portals with portal render limit handler first
// Low level portal will hold until last request
var newPpp = portalRenderLimit.splitOrMergeLowLevelPortals(ppp);
// Clean up level of portal which over render limit after portalRenderLimit handler counted the new portals
portalRenderLimit.cleanUpOverLimitPortalLevel();
handlePortalsRender(newPpp);
resolvePlayerNames();
renderUpdateStatus();
runHooks('requestFinished', {success: true});
}
window.handlePortalsRender = function(portals) {
var portalInUrlAvailable = false;
// Preserve selectedPortal because it will get lost on re-rendering
// the portal
var oldSelectedPortal = selectedPortal;
runHooks('portalDataLoaded', {portals : portals});
$.each(portals, function(guid, portal) {
//~ if(selectedPortal === portal[0]) portalUpdateAvailable = true;
if(urlPortalLL && urlPortalLL[0] === portal[2].locationE6.latE6/1E6 && urlPortalLL[1] === portal[2].locationE6.lngE6/1E6) {
urlPortal = guid;
portalInUrlAvailable = true;
urlPortalLL = null;
}
if(window.portals[guid]) {
highlightPortal(window.portals[guid]);
}
renderPortal(portal);
});
// restore selected portal if still available
var selectedPortalGroup = portals[oldSelectedPortal];
if(selectedPortalGroup) {
selectedPortal = oldSelectedPortal;
renderPortalDetails(selectedPortal);
try {
selectedPortalGroup.bringToFront();
} catch(e) { /* portal is now visible, catch Leaflet error */ }
}
if(portalInUrlAvailable) {
renderPortalDetails(urlPortal);
urlPortal = null; // select it only once
}
}
// removes entities that are still handled by Leaflet, although they
// do not intersect the current viewport.
window.cleanUp = function() {
var cnt = [0,0,0];
var b = getPaddedBounds();
var minlvl = getMinPortalLevel();
for(var i = 0; i < portalsLayers.length; i++) {
// i is also the portal level
portalsLayers[i].eachLayer(function(item) {
var itemGuid = item.options.guid;
// check if 'item' is a portal
if(getTypeByGuid(itemGuid) != TYPE_PORTAL) return true;
// portal must be in bounds and have a high enough level. Also dont
// remove if it is selected.
if(itemGuid == window.selectedPortal ||
(b.contains(item.getLatLng()) && i >= minlvl)) return true;
cnt[0]++;
portalsLayers[i].removeLayer(item);
});
}
linksLayer.eachLayer(function(link) {
if(b.intersects(link.getBounds())) return;
cnt[1]++;
linksLayer.removeLayer(link);
});
fieldsLayer.eachLayer(function(fieldgroup) {
fieldgroup.eachLayer(function(item) {
if(!item.options.guid) return true; // Skip MU div container as this doesn't have the bounds we need
if(b.intersects(item.getBounds())) return;
cnt[2]++;
fieldsLayer.removeLayer(fieldgroup);
});
});
console.log('removed out-of-bounds: '+cnt[0]+' portals, '+cnt[1]+' links, '+cnt[2]+' fields');
}
// removes given entity from map
window.removeByGuid = function(guid) {
switch(getTypeByGuid(guid)) {
case TYPE_PORTAL:
if(!window.portals[guid]) return;
var p = window.portals[guid];
for(var i = 0; i < portalsLayers.length; i++)
portalsLayers[i].removeLayer(p);
break;
case TYPE_LINK:
if(!window.links[guid]) return;
linksLayer.removeLayer(window.links[guid]);
break;
case TYPE_FIELD:
if(!window.fields[guid]) return;
fieldsLayer.removeLayer(window.fields[guid]);
break;
case TYPE_RESONATOR:
if(!window.resonators[guid]) return;
var r = window.resonators[guid];
for(var i = 1; i < portalsLayers.length; i++)
portalsLayers[i].removeLayer(r);
break;
default:
console.warn('unknown GUID type: ' + guid);
//window.debug.printStackTrace();
}
}
// renders a portal on the map from the given entity
window.renderPortal = function(ent) {
if(Object.keys(portals).length >= MAX_DRAWN_PORTALS && ent[0] !== selectedPortal)
return removeByGuid(ent[0]);
// hide low level portals on low zooms
var portalLevel = getPortalLevel(ent[2]);
if(portalLevel < getMinPortalLevel() && ent[0] !== selectedPortal)
return removeByGuid(ent[0]);
var team = getTeam(ent[2]);
// do nothing if portal did not change
var layerGroup = portalsLayers[parseInt(portalLevel)];
var old = findEntityInLeaflet(layerGroup, window.portals, ent[0]);
if(!changing_highlighters && old) {
var oo = old.options;
// Default checks to see if a portal needs to be re-rendered
var u = oo.team !== team;
u = u || oo.level !== portalLevel;
// Allow plugins to add additional conditions as to when a portal gets re-rendered
var hookData = {portal: ent[2], oldPortal: oo.details, portalGuid: ent[0], reRender: false};
runHooks('beforePortalReRender', hookData);
u = u || hookData.reRender;
// nothing changed that requires re-rendering the portal.
if(!u) {
// let resos handle themselves if they need to be redrawn
renderResonators(ent[0], ent[2], old);
// update stored details for portal details in sidebar.
old.options.details = ent[2];
return;
}
}
// there were changes, remove old portal. Dont put this in old, in
// case the portal changed level and findEntityInLeaflet doesnt find
// it.
removeByGuid(ent[0]);
var latlng = [ent[2].locationE6.latE6/1E6, ent[2].locationE6.lngE6/1E6];
// pre-loads player names for high zoom levels
loadPlayerNamesForPortal(ent[2]);
var lvWeight = Math.max(2, Math.floor(portalLevel) / 1.5);
var lvRadius = Math.floor(portalLevel) + 4;
if(team === window.TEAM_NONE) {
lvRadius = 7;
}
var p = L.circleMarker(latlng, {
radius: lvRadius + (L.Browser.mobile ? PORTAL_RADIUS_ENLARGE_MOBILE : 0),
color: ent[0] === selectedPortal ? COLOR_SELECTED_PORTAL : COLORS[team],
opacity: 1,
weight: lvWeight,
fillColor: COLORS[team],
fillOpacity: 0.5,
clickable: true,
level: portalLevel,
team: team,
ent: ent,
details: ent[2],
guid: ent[0]});
p.on('remove', function() {
var portalGuid = this.options.guid
// remove attached resonators, skip if
// all resonators have already removed by zooming
if(isResonatorsShow()) {
for(var i = 0; i <= 7; i++)
removeByGuid(portalResonatorGuid(portalGuid, i));
}
delete window.portals[portalGuid];
if(window.selectedPortal === portalGuid) {
window.unselectOldPortal();
}
});
p.on('add', function() {
// enable for debugging
if(window.portals[this.options.guid]) throw('duplicate portal detected');
window.portals[this.options.guid] = this;
window.renderResonators(this.options.guid, this.options.details, this);
// handles the case where a selected portal gets removed from the
// map by hiding all portals with said level
if(window.selectedPortal !== this.options.guid)
window.portalResetColor(this);
});
p.on('click', function() { window.renderPortalDetails(ent[0]); });
p.on('dblclick', function() {
window.renderPortalDetails(ent[0]);
window.map.setView(latlng, 17);
});
highlightPortal(p);
window.runHooks('portalAdded', {portal: p});
p.addTo(layerGroup);
}
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) dont fire add/remove
// events, thus this listener will be attached to the resonator. It
// doesnt 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 // doesnt work for two points anyway, so disable
});
// determine which links are very short and dont 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 dont
// render them, so they dont count towards the maximum fields limit.
// This saves some DOM operations as well, but given the relatively
// low amount of fields there isnt 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) dont fire add/remove
// events, thus this listener will be attached to the field. It
// doesnt 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;
}