Split up overviewer.js into several files
This commit is contained in:
Andrew Chin
416
overviewer_core/data/js_src/util.js
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416
overviewer_core/data/js_src/util.js
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overviewer.util = {
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/**
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* General initialization function, called when the page is loaded.
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* Probably shouldn't need changing unless some very different kind of new
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* feature gets added.
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*/
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'initialize': function() {
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overviewer.util.initializeClassPrototypes();
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overviewer.collections.worlds = new overviewer.models.WorldCollection();
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$.each(overviewerConfig.worlds, function(index, el) {
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var n = new overviewer.models.WorldModel({name: el, id:el});
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overviewer.collections.worlds.add(n);
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});
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$.each(overviewerConfig.tilesets, function(index, el) {
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var newTset = new overviewer.models.TileSetModel(el);
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overviewer.collections.worlds.get(el.world).get("tileSets").add(newTset);
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});
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overviewer.collections.worlds.each(function(world, index, list) {
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var nv = new overviewer.views.WorldView({model: world});
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overviewer.collections.worldViews.push(nv);
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});
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overviewer.mapModel = new overviewer.models.GoogleMapModel({});
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overviewer.mapView = new overviewer.views.GoogleMapView({el: document.getElementById(overviewerConfig.CONST.mapDivId), model:overviewer.mapModel});
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// any controls must be created after the GoogleMapView is created
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// controls should be added in the order they should appear on screen,
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// with controls on the outside of the page being added first
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var compass = new overviewer.views.CompassView({tagName: 'DIV'});
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compass.render();
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var coordsdiv = new overviewer.views.CoordboxView({tagName: 'DIV'});
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coordsdiv.render();
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// Update coords on mousemove
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google.maps.event.addListener(overviewer.map, 'mousemove', function (event) {
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coordsdiv.updateCoords(event.latLng);
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});
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var worldSelector = new overviewer.views.WorldSelectorView({tagName:'DIV'});
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overviewer.collections.worlds.bind("add", worldSelector.render, worldSelector);
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// hook up some events
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overviewer.mapModel.bind("change:currentWorldView", overviewer.mapView.render, overviewer.mapView);
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overviewer.mapView.render();
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/*
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overviewer.util.initializeMapTypes();
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overviewer.util.initializeMap();
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overviewer.util.initializeMarkers();
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overviewer.util.initializeRegions();
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overviewer.util.createMapControls();
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*/
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},
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/**
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* This adds some methods to these classes because Javascript is stupid
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* and this seems like the best way to avoid re-creating the same methods
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* on each object at object creation time.
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*/
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'initializeClassPrototypes': function() {
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overviewer.classes.MapProjection.prototype.fromLatLngToPoint = function(latLng) {
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var x = latLng.lng() * overviewerConfig.CONST.tileSize;
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var y = latLng.lat() * overviewerConfig.CONST.tileSize;
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return new google.maps.Point(x, y);
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};
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overviewer.classes.MapProjection.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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overviewer.classes.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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')' + '<br />';
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//TODO: figure out how to get the current mapType, I think this
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//will add the maptile url to the grid thing once it works
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//div.innerHTML += overviewer.collections.mapTypes[0].getTileUrl(coord, zoom);
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//this should probably just have a css class
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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 = '10px';
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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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},
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/**
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* Quote an arbitrary string for use in a regex matcher.
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* WTB parametized regexes, JavaScript...
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*
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* From http://kevin.vanzonneveld.net
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* original by: booeyOH
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* improved by: Ates Goral (http://magnetiq.com)
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* improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
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* bugfixed by: Onno Marsman
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* example 1: preg_quote("$40");
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* returns 1: '\$40'
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* example 2: preg_quote("*RRRING* Hello?");
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* returns 2: '\*RRRING\* Hello\?'
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* example 3: preg_quote("\\.+*?[^]$(){}=!<>|:");
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* returns 3: '\\\.\+\*\?\[\^\]\$\(\)\{\}\=\!\<\>\|\:'
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*/
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"pregQuote": function(str) {
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return (str+'').replace(/([\\\.\+\*\?\[\^\]\$\(\)\{\}\=\!\<\>\|\:])/g, "\\$1");
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},
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/**
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* Change the map's div's background color according to the mapType's bg_color setting
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*
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* @param string mapTypeId
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* @return string
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*/
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'getMapTypeBackgroundColor': function(id) {
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return overviewerConfig.tilesets[id].bgcolor;
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},
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/**
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* Gee, I wonder what this does.
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*
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* @param string msg
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*/
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'debug': function(msg) {
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if (overviewerConfig.map.debug) {
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console.log(msg);
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}
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},
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/**
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* Simple helper function to split the query string into key/value
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* pairs. Doesn't do any type conversion but both are lowercase'd.
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*
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* @return Object
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*/
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'parseQueryString': function() {
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var results = {};
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var queryString = location.search.substring(1);
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var pairs = queryString.split('&');
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for (i in pairs) {
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var pos = pairs[i].indexOf('=');
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var key = pairs[i].substring(0,pos).toLowerCase();
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var value = pairs[i].substring(pos+1).toLowerCase();
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overviewer.util.debug( 'Found GET paramter: ' + key + ' = ' + value);
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results[key] = value;
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}
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return results;
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},
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'getDefaultMapTypeId': function() {
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return overviewer.collections.mapTypeIds[0];
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},
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/**
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* helper to get map LatLng from world coordinates takes arguments in
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* X, Y, Z order (arguments are *out of order*, because within the
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* function we use the axes like the rest of Minecraft Overviewer --
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* with the Z and Y flipped from normal minecraft usage.)
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*
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* @param int x
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* @param int z
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* @param int y
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*
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* @return google.maps.LatLng
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*/
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'fromWorldToLatLng': function(x, z, y, zoomLevels) {
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// the width and height of all the highest-zoom tiles combined,
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// inverted
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var perPixel = 1.0 / (overviewerConfig.CONST.tileSize *
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Math.pow(2, zoomLevels));
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if(overviewerConfig.map.north_direction == 'upper-left'){
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temp = x;
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x = -y-1;
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y = temp;
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} else if(overviewerConfig.map.north_direction == 'upper-right'){
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x = -x-1;
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y = -y-1;
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} else if(overviewerConfig.map.north_direction == 'lower-right'){
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temp = x;
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x = y;
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y = -temp-1;
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}
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// This information about where the center column is may change with
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// a different drawing implementation -- check it again after any
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// 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 -
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// ((tileSize / 2) / (tileSize * 2^zoomLevels))
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// or equivalently, 0.5 - (1 / 2^(zoomLevels + 1))
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var lng = 0.5 - (1.0 / Math.pow(2, zoomLevels + 1));
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var lat = 0.5;
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// the following metrics mimic those in
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// 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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/**
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* The opposite of fromWorldToLatLng
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* NOTE: X, Y and Z in this function are Minecraft world definitions
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* (that is, X is horizontal, Y is altitude and Z is vertical).
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*
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* @param float lat
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* @param float lng
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*
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* @return Array
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*/
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'fromLatLngToWorld': function(lat, lng, zoomLevels) {
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// Initialize world x/y/z object to be returned
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var point = Array();
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point.x = 0;
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point.y = 64;
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point.z = 0;
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// the width and height of all the highest-zoom tiles combined,
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// inverted
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var perPixel = 1.0 / (overviewerConfig.CONST.tileSize *
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Math.pow(2, zoomLevels));
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// Revert base positioning
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// See equivalent code in fromWorldToLatLng()
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lng -= 0.5 - (1.0 / Math.pow(2, zoomLevels + 1));
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lat -= 0.5;
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// I'll admit, I plugged this into Wolfram Alpha:
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// a = (x * 12 * r) + (z * 12 * r), b = (z * 6 * r) - (x * 6 * r)
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// And I don't know the math behind solving for for X and Z given
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// A (lng) and B (lat). But Wolfram Alpha did. :) I'd welcome
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// suggestions for splitting this up into long form and documenting
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// it. -RF
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point.x = (lng - 2 * lat) / (24 * perPixel)
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point.z = (lng + 2 * lat) / (24 * perPixel)
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// Adjust for the fact that we we can't figure out what Y is given
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// only latitude and longitude, so assume Y=64.
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point.x += 64;
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point.z -= 64;
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if(overviewerConfig.map.north_direction == 'upper-left'){
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temp = point.z;
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point.z = -point.x;
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point.x = temp;
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} else if(overviewerConfig.map.north_direction == 'upper-right'){
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point.x = -point.x;
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point.z = -point.z;
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} else if(overviewerConfig.map.north_direction == 'lower-right'){
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temp = point.z;
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point.z = point.x;
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point.x = -temp;
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}
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return point;
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},
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/**
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* Create the pop-up infobox for when you click on a region, this can't
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* be done in-line because of stupid Javascript scoping problems with
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* closures or something.
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*
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* @param google.maps.Polygon|google.maps.Polyline shape
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*/
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'createRegionInfoWindow': function(shape) {
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var infowindow = new google.maps.InfoWindow();
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google.maps.event.addListener(shape, 'click', function(event, i) {
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if (overviewer.collections.infoWindow) {
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overviewer.collections.infoWindow.close();
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}
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// Replace our Info Window's content and position
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var point = overviewer.util.fromLatLngToWorld(event.latLng.lat(),event.latLng.lng());
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var contentString = '<b>Region: ' + shape.name + '</b><br />' +
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'Clicked Location: <br />' + Math.round(point.x,1) + ', ' + point.y
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+ ', ' + Math.round(point.z,1)
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+ '<br />';
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infowindow.setContent(contentString);
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infowindow.setPosition(event.latLng);
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infowindow.open(overviewer.map);
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overviewer.collections.infoWindow = infowindow;
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});
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},
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/**
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* Same as createRegionInfoWindow()
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*
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* @param google.maps.Marker marker
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*/
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'createMarkerInfoWindow': function(marker) {
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var windowContent = '<div class="infoWindow"><img src="' + marker.icon +
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'"/><p>' + marker.title.replace(/\n/g,'<br/>') + '</p></div>';
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var infowindow = new google.maps.InfoWindow({
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'content': windowContent
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});
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google.maps.event.addListener(marker, 'click', function() {
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if (overviewer.collections.infoWindow) {
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overviewer.collections.infoWindow.close();
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}
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infowindow.open(overviewer.map, marker);
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overviewer.collections.infoWindow = infowindow;
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});
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},
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'initHash': function() {
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if(window.location.hash.split("/").length > 1) {
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overviewer.util.goToHash();
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// Clean up the hash.
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overviewer.util.updateHash();
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// Add a marker indicating the user-supplied position
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var coordinates = overviewer.util.fromLatLngToWorld(overviewer.map.getCenter().lat(),
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overviewer.map.getCenter().lng(),
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overviewerConfig.tilesets[overviewer.currentTilesetId].zoomLevels);
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overviewer.collections.markerDatas.push([{
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'msg': 'Coordinates ' + Math.floor(coordinates.x) + ', ' + Math.floor(coordinates.y) + ', ' + Math.floor(coordinates.z),
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'x': coordinates.x,
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'y': coordinates.y,
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'z': coordinates.z,
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'type': 'querypos'}]);
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}
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},
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'setHash': function(x, y, z, zoom, maptype) {
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// remove the div prefix from the maptype (looks better)
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if (maptype)
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{
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maptype = maptype.replace(overviewerConfig.CONST.mapDivId, "");
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}
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window.location.replace("#/" + Math.floor(x) + "/" + Math.floor(y) + "/" + Math.floor(z) + "/" + zoom + "/" + maptype);
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},
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'updateHash': function() {
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var coordinates = overviewer.util.fromLatLngToWorld(overviewer.map.getCenter().lat(),
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overviewer.map.getCenter().lng(),
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overviewerConfig.tilesets[overviewer.currentTilesetId].zoomLevels);
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var zoom = overviewer.map.getZoom();
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var maptype = overviewer.map.getMapTypeId();
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if (zoom == overviewerConfig.tilesets[overviewer.currentTilesetId].maxZoom) {
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zoom = 'max';
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} else if (zoom == overviewerConfig.tilesets[overviewer.currentTilesetId].minZoom) {
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zoom = 'min';
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} else {
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// default to (map-update friendly) negative zooms
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zoom -= overviewerConfig.tilesets[overviewer.currentTilesetId].maxZoom;
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}
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overviewer.util.setHash(coordinates.x, coordinates.y, coordinates.z, zoom, maptype);
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},
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'goToHash': function() {
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// Note: the actual data begins at coords[1], coords[0] is empty.
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var coords = window.location.hash.split("/");
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var latlngcoords = overviewer.util.fromWorldToLatLng(parseInt(coords[1]),
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parseInt(coords[2]),
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parseInt(coords[3]),
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overviewerConfig.tilesets[overviewer.currentTilesetId].zoomLevels);
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var zoom;
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var maptype = '';
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// The if-statements try to prevent unexpected behaviour when using incomplete hashes, e.g. older links
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if (coords.length > 4) {
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zoom = coords[4];
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}
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if (coords.length > 5) {
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maptype = coords[5];
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}
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if (zoom == 'max') {
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zoom = overviewerConfig.tilesets[overviewer.currentTilesetId].maxZoom;
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} else if (zoom == 'min') {
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zoom = overviewerConfig.tilesets[overviewer.currentTilesetId].minZoom;
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} else {
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zoom = parseInt(zoom);
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if (zoom < 0 && zoom + overviewerConfig.tilesets[overviewer.currentTilesetId].maxZoom >= 0) {
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// if zoom is negative, treat it as a "zoom out from max"
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zoom += overviewerConfig.tilesets[overviewer.currentTilesetId].maxZoom;
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} else {
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// fall back to default zoom
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zoom = overviewerConfig.tilesets[overviewer.currentTilesetId].defaultZoom;
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}
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}
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// If the maptype isn't set, set the default one.
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if (maptype == '') {
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// We can now set the map to use the 'coordinate' map type
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overviewer.map.setMapTypeId(overviewer.util.getDefaultMapTypeId());
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} else {
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// normalize the map type (this supports old-style,
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// 'mcmapLabel' style map types, converts them to 'shortname'
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if (maptype.lastIndexOf(overviewerConfig.CONST.mapDivId, 0) === 0) {
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maptype = maptype.replace(overviewerConfig.CONST.mapDivId, "");
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for (i in overviewer.collections.mapTypes) {
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var type = overviewer.collections.mapTypes[i];
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if (type.name == maptype) {
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maptype = type.shortname;
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break;
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}
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}
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}
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overviewer.map.setMapTypeId(overviewerConfig.CONST.mapDivId + maptype);
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}
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overviewer.map.setCenter(latlngcoords);
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overviewer.map.setZoom(zoom);
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}
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};
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Reference in New Issue
Block a user