499 lines
16 KiB
JavaScript
499 lines
16 KiB
JavaScript
var markerCollection = {}; // holds groups of markers
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var map;
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var markersInit = false;
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var regionsInit = false;
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var prevInfoWindow = null;
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function prepareSignMarker(marker, item) {
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var c = "<div class=\"infoWindow\"><img src=\"signpost.png\" /><p>" + item.msg.replace(/\n/g,"<br/>") + "</p></div>";
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var infowindow = new google.maps.InfoWindow({content: c
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});
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google.maps.event.addListener(marker, 'click', function() {
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if (prevInfoWindow)
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prevInfoWindow.close()
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infowindow.open(map,marker);
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prevInfoWindow = infowindow
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});
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}
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function createDropDown(title, items) {
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var control = document.createElement("DIV");
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control.id = "customControl"; // let's let a style sheet do most of the styling here
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var controlBorder = document.createElement("DIV");
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controlBorder.id="top";
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control.appendChild(controlBorder);
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var controlText = document.createElement("DIV");
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controlBorder.appendChild(controlText);
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controlText.innerHTML = title;
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var dropdownDiv = document.createElement("DIV");
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$(controlText).click(function() {
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$(dropdownDiv).toggle();
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});
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dropdownDiv.id="dropDown";
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control.appendChild(dropdownDiv);
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dropdownDiv.innerHTML="";
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map.controls[google.maps.ControlPosition.TOP_RIGHT].push(control);
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for (idx in items) {
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var item = items[idx];
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//console.log(item);
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var d = document.createElement("div");
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var n = document.createElement("input");
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n.type="checkbox";
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$(n).data("label",item.label);
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jQuery(n).click(function(e) {
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item.action(idx, item.label, e.target.checked);
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});
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if (item.checked) {
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n.checked = true;
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item.action(idx, item.label, item.checked);
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}
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dropdownDiv.appendChild(d);
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d.appendChild(n)
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var textNode = document.createElement("text");
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textNode.innerHTML = item.label + "<br/>";
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d.appendChild(textNode);
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}
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}
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function drawMapControls() {
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// viewstate link
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var viewStateDiv = document.createElement('DIV');
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//<div id="link" style="border:1px solid black;background-color:white;color:black;position:absolute;top:5px;right:5px"></div>
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viewStateDiv.id="link";
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map.controls[google.maps.ControlPosition.BOTTOM_RIGHT].push(viewStateDiv);
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// compass rose, in the top right corner
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var compassDiv = document.createElement('DIV');
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compassDiv.style.padding = '5px';
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var compassImg = document.createElement('IMG');
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compassImg.src="compass.png";
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compassDiv.appendChild(compassImg);
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compassDiv.index = 0;
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map.controls[google.maps.ControlPosition.TOP_RIGHT].push(compassDiv);
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if (signGroups.length > 0) {
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// signpost display control
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var items = [];
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for (idx in signGroups) {
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var item = signGroups[idx];
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items.push({"label": item.label, "checked": item.checked,
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"action": function(n, l, checked) {
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jQuery.each(markerCollection[l], function(i,elem) {elem.setVisible(checked);});
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}});
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}
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createDropDown("Signposts", items);
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}
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if (overlayMapTypes.length > 0) {
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// overlay maps control
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var items = [];
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for (idx in overlayMapTypes) {
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var overlay = overlayMapTypes[idx];
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items.push({"label": overlay.name, "checked": false,
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"action": function(i, l, checked) {
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if (checked) {
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map.overlayMapTypes.push(overlay);
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} else {
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var idx_to_delete = -1;
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map.overlayMapTypes.forEach(function(e, j) {
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if (e == overlay) {
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idx_to_delete = j;
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}
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});
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if (idx_to_delete >= 0) {
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map.overlayMapTypes.removeAt(idx_to_delete);
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}
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}
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}});
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}
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createDropDown("Overlays", items);
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}
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}
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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({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({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 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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// a default:
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var iconURL = '';
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if (item.type == 'spawn') {
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// don't filter spawn, always display
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iconURL = 'http://google-maps-icons.googlecode.com/files/home.png';
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var converted = fromWorldToLatLng(item.x, item.y, item.z);
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var marker = new google.maps.Marker({position: converted,
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map: map,
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title: jQuery.trim(item.msg),
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icon: iconURL
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});
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continue;
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}
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var matched = false;
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for (idx in signGroups) {
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var signGroup = signGroups[idx];
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var testfunc = signGroup.match;
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var label = signGroup.label;
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if (testfunc(item)) {
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matched = true;
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if (item.type == 'sign') { iconURL = 'signpost_icon.png';}
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//console.log(signGroup.icon);
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if (signGroup.icon) { iconURL = signGroup.icon;
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}
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var converted = fromWorldToLatLng(item.x, item.y, item.z);
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var marker = new google.maps.Marker({position: converted,
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map: map,
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title: jQuery.trim(item.msg),
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icon: iconURL,
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visible: false
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});
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if (markerCollection[label]) {
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markerCollection[label].push(marker);
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} else {
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markerCollection[label] = [marker];
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}
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if (item.type == 'sign') {
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prepareSignMarker(marker, item);
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}
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}
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}
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if (!matched) {
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// is this signpost doesn't match any of the groups in config.js, add it automatically to the "__others__" group
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if (item.type == 'sign') { iconURL = 'signpost_icon.png';}
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var converted = fromWorldToLatLng(item.x, item.y, item.z);
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var marker = new google.maps.Marker({position: converted,
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map: map,
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title: jQuery.trim(item.msg),
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icon: iconURL,
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visible: false
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});
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if (markerCollection["__others__"]) {
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markerCollection["__others__"].push(marker);
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} else {
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markerCollection["__others__"] = [marker];
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}
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if (item.type == 'sign') {
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prepareSignMarker(marker, item);
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}
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}
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}
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}
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function makeLink() {
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var a=location.href.substring(0,location.href.lastIndexOf(location.search))
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+ "?lat=" + map.getCenter().lat().toFixed(6)
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+ "&lng=" + map.getCenter().lng().toFixed(6)
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+ "&zoom=" + map.getZoom();
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document.getElementById("link").innerHTML = a;
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}
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function initialize() {
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var query = location.search.substring(1);
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var defaultCenter = fromWorldToLatLng(config.center[0],
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config.center[1],
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config.center[2]);
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var lat = defaultCenter.lat();
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var lng = defaultCenter.lng();
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var zoom = config.defaultZoom;
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var pairs = query.split("&");
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for (var i=0; i<pairs.length; i++) {
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// break each pair at the first "=" to obtain the argname and value
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var pos = pairs[i].indexOf("=");
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var argname = pairs[i].substring(0,pos).toLowerCase();
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var value = pairs[i].substring(pos+1).toLowerCase();
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// process each possible argname
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if (argname == "lat") {lat = parseFloat(value);}
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if (argname == "lng") {lng = parseFloat(value);}
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if (argname == "zoom") {zoom = parseInt(value);}
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}
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var mapTyepControlToggle = false
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if (mapTypeIds.length > 1) {
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mapTyepControlToggle = true
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}
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var mapOptions = {
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zoom: zoom,
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center: new google.maps.LatLng(lat, lng),
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navigationControl: true,
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scaleControl: false,
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mapTypeControl: mapTyepControlToggle,
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mapTypeControlOptions: {
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mapTypeIds: mapTypeIds
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},
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mapTypeId: mapTypeIdDefault,
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streetViewControl: false,
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backgroundColor: config.bg_color,
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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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for (idx in MCMapType) {
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map.mapTypes.set('mcmap' + MCMapType[idx].name, MCMapType[idx]);
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}
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// We can now set the map to use the 'coordinate' map type
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map.setMapTypeId(mapTypeIdDefault);
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// initialize the markers and regions
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initMarkers();
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initRegions();
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drawMapControls();
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//makeLink();
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// Make the link again whenever the map changes
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google.maps.event.addListener(map, 'zoom_changed', function() {
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makeLink();
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});
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google.maps.event.addListener(map, 'center_changed', function() {
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makeLink();
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});
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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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// or, equivalently, chunk_render in src/iterate.c
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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 to center our point
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lng += 12 * perPixel;
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return new google.maps.LatLng(lat, lng);
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}
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function getTileUrlGenerator(path, path_base) {
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return function(tile, zoom) {
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var url = path;
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var url_base = ( path_base ? path_base : '' );
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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_base + url);
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}
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}
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var MCMapOptions = new Array;
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var MCMapType = new Array;
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var mapTypeIdDefault = null;
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var mapTypeIds = [];
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var overlayMapTypes = [];
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for (idx in mapTypeData) {
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var view = mapTypeData[idx];
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MCMapOptions[view.label] = {
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getTileUrl: getTileUrlGenerator(view.path, view.base),
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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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MCMapType[view.label] = new google.maps.ImageMapType(MCMapOptions[view.label]);
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MCMapType[view.label].name = view.label;
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MCMapType[view.label].alt = "Minecraft " + view.label + " Map";
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MCMapType[view.label].projection = new MCMapProjection();
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if (view.overlay) {
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overlayMapTypes.push(MCMapType[view.label]);
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} else {
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if (mapTypeIdDefault == null) {
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mapTypeIdDefault = 'mcmap' + view.label;
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}
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mapTypeIds.push('mcmap' + view.label);
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}
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}
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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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