244 lines
7.6 KiB
HTML
244 lines
7.6 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
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<style type="text/css">
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html { height: 100% }
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body { height: 100%; margin: 0px; padding: 0px ; background-color: #000; }
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#mcmap { height: 100% }
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</style>
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<script type="text/javascript" src="markers.js"></script>
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<script type="text/javascript" src="regions.js"></script>
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<script type="text/javascript"
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src="http://maps.google.com/maps/api/js?sensor=false">
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</script>
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<script type="text/javascript">
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var config = {
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path: 'tiles',
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fileExt: '{imgformat}',
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tileSize: 384,
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defaultZoom: 1,
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maxZoom: {maxzoom},
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cacheMinutes: 0, // Change this to have browsers automatically request new images every x minutes
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debug: false
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};
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// our custom projection maps Latitude to Y, and Longitude to X as normal,
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// but it maps the range [0.0, 1.0] to [0, tileSize] in both directions
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// so it is easier to position markers, etc. based on their position
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// (find their position in the lowest-zoom image, and divide by tileSize)
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function MCMapProjection() {
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this.inverseTileSize = 1.0 / config.tileSize;
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}
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MCMapProjection.prototype.fromLatLngToPoint = function(latLng) {
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var x = latLng.lng() * config.tileSize;
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var y = latLng.lat() * config.tileSize;
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return new google.maps.Point(x, y);
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};
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MCMapProjection.prototype.fromPointToLatLng = function(point) {
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var lng = point.x * this.inverseTileSize;
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var lat = point.y * this.inverseTileSize;
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return new google.maps.LatLng(lat, lng);
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};
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// helper to get map LatLng from world coordinates
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// takes arguments in X, Y, Z order
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// (arguments are *out of order*, because within the function we use
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// the axes like the rest of Minecraft Overviewer -- with the Z and Y
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// flipped from normal minecraft usage.)
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function fromWorldToLatLng(x, z, y)
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{
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// the width and height of all the highest-zoom tiles combined, inverted
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var perPixel = 1.0 / (config.tileSize * Math.pow(2, config.maxZoom));
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// This information about where the center column is may change with a different
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// drawing implementation -- check it again after any drawing overhauls!
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// point (0, 0, 127) is at (0.5, 0.0) of tile (tiles/2 - 1, tiles/2)
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// so the Y coordinate is at 0.5, and the X is at 0.5 - ((tileSize / 2) / (tileSize * 2^maxZoom))
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// or equivalently, 0.5 - (1 / 2^(maxZoom + 1))
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var lng = 0.5 - (1.0 / Math.pow(2, config.maxZoom + 1));
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var lat = 0.5;
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// the following metrics mimic those in ChunkRenderer.chunk_render in "chunk.py"
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// each block on X axis adds 12px to x and subtracts 6px from y
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lng += 12 * x * perPixel;
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lat -= 6 * x * perPixel;
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// each block on Y axis adds 12px to x and adds 6px to y
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lng += 12 * y * perPixel;
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lat += 6 * y * perPixel;
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// each block down along Z adds 12px to y
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lat += 12 * (128 - z) * perPixel;
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// add on 12 px to the X coordinate and 18px to the Y to center our point
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lng += 12 * perPixel;
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lat += 18 * perPixel;
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return new google.maps.LatLng(lat, lng);
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}
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var MCMapOptions = {
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getTileUrl: function(tile, zoom) {
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var url = config.path;
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if(tile.x < 0 || tile.x >= Math.pow(2, zoom) || tile.y < 0 || tile.y >= Math.pow(2, zoom)) {
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url += '/blank';
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} else if(zoom == 0) {
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url += '/base';
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} else {
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for(var z = zoom - 1; z >= 0; --z) {
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var x = Math.floor(tile.x / Math.pow(2, z)) % 2;
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var y = Math.floor(tile.y / Math.pow(2, z)) % 2;
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url += '/' + (x + 2 * y);
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}
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}
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url = url + '.' + config.fileExt;
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if(config.cacheMinutes > 0) {
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var d = new Date();
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url += '?c=' + Math.floor(d.getTime() / (1000 * 60 * config.cacheMinutes));
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}
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return(url);
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},
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tileSize: new google.maps.Size(config.tileSize, config.tileSize),
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maxZoom: config.maxZoom,
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minZoom: 0,
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isPng: !(config.fileExt.match(/^png$/i) == null)
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};
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var MCMapType = new google.maps.ImageMapType(MCMapOptions);
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MCMapType.name = "MC Map";
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MCMapType.alt = "Minecraft Map";
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MCMapType.projection = new MCMapProjection();
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function CoordMapType() {
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}
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function CoordMapType(tileSize) {
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this.tileSize = tileSize;
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}
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CoordMapType.prototype.getTile = function(coord, zoom, ownerDocument) {
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var div = ownerDocument.createElement('DIV');
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div.innerHTML = "(" + coord.x + ", " + coord.y + ", " + zoom + ")";
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div.innerHTML += "<br />";
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div.innerHTML += MCMapOptions.getTileUrl(coord, zoom);
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div.style.width = this.tileSize.width + 'px';
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div.style.height = this.tileSize.height + 'px';
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div.style.fontSize = '10';
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div.style.borderStyle = 'solid';
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div.style.borderWidth = '1px';
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div.style.borderColor = '#AAAAAA';
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return div;
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};
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var map;
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var markersInit = false;
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function initMarkers() {
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if (markersInit) { return; }
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markersInit = true;
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for (i in markerData) {
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var item = markerData[i];
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var converted = fromWorldToLatLng(item.x, item.y, item.z);
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var marker = new google.maps.Marker({
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position: converted,
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map: map,
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title: item.msg
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});
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}
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}
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var regionsInit = false;
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function initRegions() {
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if (regionsInit) { return; }
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regionsInit = true;
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for (i in regionData) {
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var region = regionData[i];
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var converted = new google.maps.MVCArray();
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for (j in region.path) {
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var point = region.path[j];
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converted.push(fromWorldToLatLng(point.x, point.y, point.z));
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}
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if (region.closed) {
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new google.maps.Polygon({
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clickable: false,
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geodesic: false,
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map: map,
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strokeColor: region.color,
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strokeOpacity: region.opacity,
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strokeWeight: 2,
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fillColor: region.color,
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fillOpacity: region.opacity * 0.25,
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zIndex: i,
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paths: converted
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});
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} else {
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new google.maps.Polyline({
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clickable: false,
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geodesic: false,
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map: map,
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strokeColor: region.color,
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strokeOpacity: region.opacity,
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strokeWeight: 2,
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zIndex: i,
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path: converted
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});
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}
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}
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}
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function initialize() {
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var mapOptions = {
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zoom: config.defaultZoom,
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center: new google.maps.LatLng(0.5, 0.5),
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navigationControl: true,
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scaleControl: false,
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mapTypeControl: false,
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streetViewControl: false,
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mapTypeId: 'mcmap'
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};
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map = new google.maps.Map(document.getElementById("mcmap"), mapOptions);
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if(config.debug) {
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map.overlayMapTypes.insertAt(0, new CoordMapType(new google.maps.Size(config.tileSize, config.tileSize)));
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google.maps.event.addListener(map, 'click', function(event) {
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console.log("latLng; " + event.latLng.lat() + ", " + event.latLng.lng());
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var pnt = map.getProjection().fromLatLngToPoint(event.latLng);
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console.log("point: " + pnt);
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var pxx = pnt.x * config.tileSize * Math.pow(2, config.maxZoom);
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var pxy = pnt.y * config.tileSize * Math.pow(2, config.maxZoom);
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console.log("pixel: " + pxx + ", " + pxy);
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});
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}
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// Now attach the coordinate map type to the map's registry
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map.mapTypes.set('mcmap', MCMapType);
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// We can now set the map to use the 'coordinate' map type
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map.setMapTypeId('mcmap');
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// initialize the markers and regions
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initMarkers();
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initRegions();
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}
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</script>
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</head>
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<body onload="initialize()">
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<div id="mcmap" style="width:100%; height:100%"></div>
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</body>
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</html>
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