forked from MTSR/mapserver
140 lines
3.5 KiB
JavaScript
140 lines
3.5 KiB
JavaScript
/* exported PlayerOverlay */
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/* globals AbstractIconOverlay: true */
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/* jshint unused: false */
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var PlayerIcon = L.icon({
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iconUrl: 'pics/sam.png',
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iconSize: [16, 32],
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iconAnchor: [8, 16],
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popupAnchor: [0, -16]
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});
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var PlayerOverlay = L.LayerGroup.extend({
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initialize: function(wsChannel, layerMgr) {
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L.LayerGroup.prototype.initialize.call(this);
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this.layerMgr = layerMgr;
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this.wsChannel = wsChannel;
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this.currentObjects = {}; // name => marker
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this.players = [];
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this.reDraw = this.reDraw.bind(this);
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this.onMinetestUpdate = this.onMinetestUpdate.bind(this);
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//update players all the time
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this.wsChannel.addListener("minetest-info", function(info){
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this.players = info.players || [];
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}.bind(this));
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},
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createMarker: function(player){
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var marker = L.marker([player.pos.z, player.pos.x], {icon: PlayerIcon});
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var i;
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var html = "<b>" + player.name + "</b>";
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html += "<hr>";
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for (i=0; i<Math.floor(player.hp / 2); i++)
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html += "<img src='pics/heart.png'>";
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if (player.hp % 2 == 1)
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html += "<img src='pics/heart_half.png'>";
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html += "<br>";
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for (i=0; i<Math.floor(player.breath / 2); i++)
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html += "<img src='pics/bubble.png'>";
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if (player.breath % 2 == 1)
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html += "<img src='pics/bubble_half.png'>";
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marker.bindPopup(html);
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return marker;
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},
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isPlayerInCurrentLayer: function(player){
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var mapLayer = this.layerMgr.getCurrentLayer();
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return (player.pos.y >= (mapLayer.from*16) && player.pos.y <= (mapLayer.to*16));
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},
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onMinetestUpdate: function(info){
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var self = this;
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this.players.forEach(function(player){
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var isInLayer = self.isPlayerInCurrentLayer(player);
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if (!isInLayer){
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if (self.currentObjects[player.name]){
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//player is displayed and not on the layer anymore
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//Remove the marker and reference
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self.currentObjects[player.name].remove();
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delete self.currentObjects[player.name];
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}
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return;
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}
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if (self.currentObjects[player.name]){
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//marker exists
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self.currentObjects[player.name].setLatLng([player.pos.z, player.pos.x]);
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//setPopupContent
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} else {
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//marker does not exist
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var marker = self.createMarker(player);
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marker.addTo(self);
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self.currentObjects[player.name] = marker;
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}
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});
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Object.keys(self.currentObjects).forEach(function(existingName){
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var playerIsActive = self.players.find(function(p){
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return p.name == existingName;
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});
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if (!playerIsActive){
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//player
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self.currentObjects[existingName].remove();
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delete self.currentObjects[existingName];
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}
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});
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},
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reDraw: function(){
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var self = this;
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this.currentObjects = {};
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this.clearLayers();
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var mapLayer = this.layerMgr.getCurrentLayer();
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this.players.forEach(function(player){
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if (!self.isPlayerInCurrentLayer(player)){
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//not in current layer
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return;
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}
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var marker = self.createMarker(player);
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marker.addTo(self);
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self.currentObjects[player.name] = marker;
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});
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},
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onAdd: function(map) {
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this.layerMgr.addListener(this.reDraw);
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this.wsChannel.addListener("minetest-info", this.onMinetestUpdate);
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this.reDraw();
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},
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onRemove: function(map) {
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this.clearLayers();
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this.layerMgr.removeListener(this.reDraw);
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this.wsChannel.removeListener("minetest-info", this.onMinetestUpdate);
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}
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});
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