initial implementation of ornaments

code/ornaments.js

@@ -0,0 +1,56 @@
+// ORNAMENTS ///////////////////////////////////////////////////////
+
+// added as part of the ingress #helios in 2014, ornaments
+// are additional image overlays for portals
+// currently there are 28 known ornaments: ap$x$suffix
+// - cluster portals (without suffix)
+// - volatile portals (_v)
+// - meeting points (_start)
+// - finish points (_end)
+// (there are 7 different colors for each of them)
+
+
+window.ornaments = {}
+window.ornaments.OVERLAY_SIZE = 60;
+window.ornaments.OVERLAY_OPACITY = 0.6;
+
+window.ornaments.setup = function() {
+  window.ornaments._portals = {};
+  window.ornaments._layer = L.layerGroup();
+  window.addLayerGroup('Ornaments', window.ornaments._layer, true);
+}
+
+// quick test for portal having ornaments
+window.ornaments.isInterestingPortal = function(portal) {
+  return portal.options.data.ornaments.length != 0;
+}
+
+window.ornaments.addPortal = function(portal) {
+  var guid = portal.options.guid;
+
+  window.ornaments.removePortal(portal);
+
+  var size = window.ornaments.OVERLAY_SIZE;
+  var latlng = portal.getLatLng();
+
+  window.ornaments._portals[guid] = portal.options.data.ornaments.map(function(ornament) {
+    var icon = L.icon({
+      iconUrl: "//commondatastorage.googleapis.com/ingress.com/img/map_icons/marker_images/"+ornament+".png",
+      iconSize: [size, size],
+      iconAnchor: [size/2,size/2],
+      className: 'no-pointer-events'  // the clickable: false below still blocks events going through to the svg underneath
+    });
+
+    return L.marker(latlng, {icon: icon, clickable: false, keyboard: false, opacity: window.ornaments.OVERLAY_OPACITY }).addTo(window.ornaments._layer);
+  });
+}
+
+window.ornaments.removePortal = function(portal) {
+  var guid = portal.options.guid;
+  if(window.ornaments._portals[guid]) {
+    window.ornaments._portals[guid].forEach(function(marker) {
+      window.ornaments._layer.removeLayer(marker);
+    });
+    delete window.ornaments._portals[guid];
+  }
+}