minetest.git - modified minetest for gpcfs purposes

	Commit message (Expand)	Author	Age
*	Revert part of eb49009d023e6e3b5d59a97b8fb5fed5eee83296 (#5230)	Auke Kok	2017-02-16
*	FreeType: address font license issues (#5230)	Auke Kok	2017-02-14

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<!DOCTYPE html>
<html>
<head>
	
	<title>LinuxWorks Minetest Map (unofficial)</title>

	<meta charset="utf-8" />
	<meta name="viewport" content="width=device-width, initial-scale=1.0">

	<link rel="stylesheet" href="https://unpkg.com/leaflet@1.6.0/dist/leaflet.css" integrity="sha512-xwE/Az9zrjBIphAcBb3F6JVqxf46+CDLwfLMHloNu6KEQCAWi6HcDUbeOfBIptF7tcCzusKFjFw2yuvEpDL9wQ==" crossorigin=""/>
	<script src="https://unpkg.com/leaflet@1.6.0/dist/leaflet.js" integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==" crossorigin=""></script>
</head>
	<body style="position: absolute; padding: 0px; margin: 0px; width:100%; height:100%;">
	<div id="mapid" style="width: 100%; height: 100%;"></div>
	<style>
	.leaflet-tooltip.city-names {
		background-color: transparent;
		border: transparent;
		box-shadow: none;
		
		font-weight: bold;
		font-size: 14pt;
		opacity:1.0;
		color: white;
		text-shadow: 0px 0px 5px black;
	}
	</style>
	<script>
		// Projection fix from: https://gis.stackexchange.com/questions/200865/leaflet-crs-simple-custom-scale
		var factorx = 1/256 * 4;
		var factory = factorx;
		var originx = 7000;
		var originy = 7000;
		var zoom_level_real = 6;
		
		L.CRS.pr = L.extend({}, L.CRS.Simple, {
			projection: L.Projection.LonLat,
			transformation: new L.Transformation(factorx, factorx * originx, -factory, factory * originy),
			
			scale: function(zoom) {
				return Math.pow(2, zoom);
			},

			zoom: function(scale) {
				return Math.log(scale) / Math.LN2;
			},

			distance: function(latlng1, latlng2) {
				var dx = latlng2.lng - latlng1.lng,
				dy = latlng2.lat - latlng1.lat;
		
				return Math.sqrt(dx * dx + dy * dy);
			},
			infinite: true
		});

		// Init map
		var mymap = L.map('mapid', {
		    crs: L.CRS.pr
		}).setView([0, 0], 6);

		var mapheight = 16384;
		var mapwidth = mapheight;
		var sw = mymap.unproject([0, 0], zoom_level_real);
		var ne = mymap.unproject([mapwidth, mapheight], zoom_level_real);
		var layerbounds = new L.LatLngBounds(sw, ne);
		
		var layers = L.control.layers({}, {}).addTo(mymap);
		
		function load_svg(name, url, active=1) {
			var xhttp_ps = new XMLHttpRequest();
			xhttp_ps.onreadystatechange = function() {
				if (this.readyState == 4) {
					if (this.status == 200) {
						var svgElement = document.createElementNS("http://www.w3.org/2000/svg", "svg");
						svgElement.setAttribute('xmlns', "http://www.w3.org/2000/svg");
						svgElement.setAttribute('viewBox', "0 0 16384 16384");
						svgElement.innerHTML = xhttp_ps.responseText;
						var svgElementBounds = [ [ 0, 0 ], [ 1000, 1000 ] ];
						var overlay = L.svgOverlay(svgElement, svgElementBounds);
						layers.addOverlay(overlay, name);
						if (active)
							overlay.addTo(mymap);
						return overlay;
					} else {
						alert("Error: Could not load SVG map layer (" + name + ")");
					}
				}
			};
			xhttp_ps.open("GET", url, true);
			xhttp_ps.send();
		}

		function load_tiles(name, id) {
			var satellite = L.tileLayer('tiles/?id={id}&z={z}&x={x}&y={y}', {
				maxZoom: 8,
				maxNativeZoom: 6,
				minNativeZoom: 0,
				minZoom: 0,
				noWrap: true,
				attribution: 'Map data &copy; <a href="https://wiki.linux-forks.de/mediawiki/index.php/Maps">Linux-Forks</a>, ' +
					'All rights reserved, ',
				id: id,
				tileSize: 256,
				zoomOffset: 0,
				opacity: 1.0,
				bounds: layerbounds
			});
			layers.addBaseLayer(satellite, name);
			return satellite;
		}
		
		function load_geojson(name, url, active=1) {
			var xhttp_ps = new XMLHttpRequest();
			xhttp_ps.onreadystatechange = function() {
				if (this.readyState == 4) {
					if (this.status == 200) {
						var geojson = L.geoJSON(JSON.parse(xhttp_ps.responseText), {
						  onEachFeature: function (feature, layer) {
						    label = String(feature.properties.name)
						    layer.bindPopup(
						    	'<h1><a href="https://wiki.linux-forks.de/mediawiki/index.php/'+feature.properties.name+'">'+feature.properties.name+'</a> ('+feature.geometry.coordinates+')</h1>'+
						    	'<p><img style="width:100%" src="' + feature.properties.image + '"></p>' +
						    	'<p>'+feature.properties.description+'</p>'
						    	);
						    layer.bindTooltip(label, {permanent: true, direction: "center", className: "city-names"}).openTooltip();
						  }/*,
						  pointToLayer: function(feature,latlng){
							    label = String(feature.properties.name)
							    return new L.CircleMarker(latlng, {
							    	radius: 1,
							    }).bindTooltip(label, {permanent: true, direction: "center", opacity: 0.7}).openTooltip();
							    }*/
						});
						layers.addOverlay(geojson, name);
						if (active)
							geojson.addTo(mymap);
						return geojson;
					} else {
						alert("Error: Could not load geojson map layer (" + name + ").");
					}
				}
			};
			xhttp_ps.open("GET", url, true);
			xhttp_ps.send();
		}

		load_tiles("Satellite (2020-04-09)", 'world-2020-04-09').addTo(mymap);		
		load_tiles("Satellite (2019-05-04, wrong coords)", 'world-2019-05-04');

		//load_svg("Test", "./overlay.svg", 0);
		load_geojson("Cities", "./geojson/cities.json");
		
		L.control.scale().addTo(mymap);

		var popup = L.popup();

		function onMapClick(e) {
			popup
				.setLatLng(e.latlng)
				.setContent("You clicked the map at " + e.latlng.toString())
				.openOn(mymap);
		}

		mymap.on('click', onMapClick);
	</script>
	</body>
</html>