traque/static/utils.js

var protocol = location.protocol;
var server = location.hostname;
var port = location.port;
var socket = io.connect({rejectUnauthorized: false},
    protocol+"://"+server+":"+port);

var id = -1;
var names = [];
var colors = [];
var markers = [];
var icons = [
    L.icon({
        iconUrl: 'def.png',
        iconSize: [10, 10],
        iconAnchor: [5, 5],
        popupAnchor: [5, 5]
    }),
    L.icon({
        iconUrl: 'track.png',
        iconSize: [10, 10],
        iconAnchor: [5, 5],
        popupAnchor: [5, 5]
    })
];
var self_icons = icons;
var self_invisible = 
    L.icon({
        iconUrl: 'invi.png',
        iconSize: [10, 10],
        iconAnchor: [5, 5],
        popupAnchor: [5, 5]
    });

//////////////////////////////////////////////////////////////////////////////
// INIT MAP

var map_border = [
    [48.838991, 2.389310],
    [48.865471, 2.356133],
    [48.867714, 2.313811],
    [48.841481, 2.307930],
    [48.827912, 2.326842],
    [48.821826, 2.358638],
    [48.838991, 2.389310]
];

var map;

function setup_map(){
	map = L.map('map').setView([48.8448, 2.3550], 13);

	L.tileLayer('https://stamen-tiles.a.ssl.fastly.net/toner/{z}/{x}/{y}.png', {
	    maxZoom: 19,
	    attribution: '© OpenStreetMap'
	}).addTo(map);

    L.polyline(map_border, {color: 'red'}).addTo(map);
}

//////////////////////////////////////////////////////////////////////////////
// UPDATE MAP

function setup_socket_common(){
	socket.on("moving", function(data){
		console.log("moving", data);
		if(!(data.id in markers)){
			if(!(data.id in colors))
				colors[data.id] = 0;
			var icon;
			if(data.id == id)
				icon = self_icons[colors[data.id]];
			else
				icon = icons[colors[data.id]];
			markers[data.id] = L.marker(data.position, {"icon": icon}).addTo(map);
			if(data.id == id)
				markers[data.id].setZIndexOffset(10000);
			if(data.id in names)
				markers[data.id].bindPopup(names[data.id]);
        } else{
            markers[data.id].setLatLng(data.position);
        }
	});

	socket.on("popup", function(data){
		alert(data.content);
	});

	socket.on("setName", function(data){
		console.log("setName", data);
		names[data.id] = data.name;
		if(data.id in markers)
			markers[data.id].bindPopup(data.name);
	});

	socket.on("remove", function(data){
		if(data.id in markers)
			markers[data.id].remove();
	});

	socket.on("newTracker", function(data){
		L.marker(data.position, {"icon": icons[1]}).addTo(map);
	});
}

function setup_socket_not_admin(){
	socket.on("yourId", function(data){
		console.log("yourId", data);
		id = data.id;
		if(!(id in colors))
			colors[id] = 0;
		if(id in markers)
			markers[id].setIcon(self_icons[colors[id]]);
	});

	socket.on("changeColor", function(data){
		console.log("changeColor", data);
		if(data.id in colors && colors[data.id] == -1 && data.id in markers)
			markers[data.id].addTo(map);
		colors[data.id] = data.color;
		if(data.id in markers){
            if(data.id == id)
                if(data.color == -1)
                    markers[data.id].setIcon(self_invisible);
                else
				    markers[data.id].setIcon(self_icons[data.color]);
			else
                if(data.color == -1)
                    markers[data.id].setLatLng([0,0]);
                else
				    markers[data.id].setIcon(icons[data.color]);
		}
	});
}

//////////////////////////////////////////////////////////////////////////////
// GEOLOCALISATION

function setup_geoLoc(){
	function geoLoc_success(pos) {
	    socket.emit("geoLoc", {"position": [pos.coords.latitude, pos.coords.longitude]});
	}

	function geoLoc_error(err) {
		console.error(`ERROR(${err.code}): ${err.message}`);
	}

	var options = {
		enableHighAccuracy: false,
		timeout: 5000,
		maximumAge: 0
	};

	navigator.geolocation.watchPosition(geoLoc_success, geoLoc_error, options);
}