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var MinedMapLayer = L.GridLayer.extend({
initialize: function (mipmaps, layer) {
this.mipmaps = mipmaps;
this.layer = layer;
this.zoomOffset = L.Browser.retina ? 1 : 0;
this.options.attribution = 'Generated by <a href="http://git.universe-factory.net/MinedMap/">MinedMap</a>';
if (!L.Browser.android) {
this.on('tileunload', this._onTileRemove);
}
},
createTile: function (coords, done) {
var tile = document.createElement('img');
tile.onload = L.bind(this._tileOnLoad, this, done, tile);
tile.onerror = L.bind(this._tileOnError, this, done, tile);
tile.alt = '';
var z = -(coords.z + this.zoomOffset);
if (z < 0)
z = 0;
var mipmap = this.mipmaps[z];
if (coords.x >= mipmap.info.minX && coords.x <= mipmap.info.maxX &&
coords.y >= mipmap.info.minZ && coords.y <= mipmap.info.maxZ &&
mipmap.regions[coords.y-mipmap.info.minZ][coords.x-mipmap.info.minX])
tile.src = 'data/'+this.layer+'/'+z+'/r.'+coords.x+'.'+coords.y+'.png';
if (z == 0)
L.DomUtil.addClass(tile, 'overzoomed');
return tile;
},
_tileOnLoad: function (done, tile) {
done(null, tile);
},
_tileOnError: function (done, tile, e) {
done(e, tile);
},
_getTileSize: function () {
var map = this._map, zoom = map.getZoom() + this.zoomOffset;
var base = (L.Browser.retina ? 256 : 512);
if (zoom > 0)
return Math.round(map.getZoomScale(zoom, 0) * base);
else
return base;
},
_onTileRemove: function (e) {
e.tile.onload = null;
e.tile.src = L.Util.emptyImageUrl;
},
_abortLoading: function () {
var i, tile;
for (i in this._tiles) {
tile = this._tiles[i].el;
tile.onload = L.Util.falseFn;
tile.onerror = L.Util.falseFn;
if (!tile.complete) {
tile.src = L.Util.emptyImageUrl;
L.DomUtil.remove(tile);
}
}
}
});
var CoordControl = L.Control.extend({
initialize: function () {
this.options.position = 'bottomleft';
},
onAdd: function (map) {
this._container = L.DomUtil.create('div', 'leaflet-control-attribution');
return this._container;
},
update: function (x, z) {
if (!this._map) { return; }
this._container.innerHTML = 'X: ' + x + ' Z: ' + z;
}
});
window.createMap = function () {
var xhr = new XMLHttpRequest();
xhr.onload = function () {
var res = JSON.parse(this.responseText),
mipmaps = res.mipmaps,
spawn = res.spawn;
var map = L.map('map', {
center: [-spawn.z, spawn.x],
zoom: 0,
minZoom: -(mipmaps.length-1),
maxZoom: 3,
crs: L.CRS.Simple,
maxBounds: [
[-512*(mipmaps[0].info.maxZ+1), 512*mipmaps[0].info.minX],
[-512*mipmaps[0].info.minZ, 512*(mipmaps[0].info.maxX+1)],
],
});
var mapLayer = new MinedMapLayer(mipmaps, 'map');
var lightLayer = new MinedMapLayer(mipmaps, 'light');
mapLayer.addTo(map);
var overlayMaps = {
"Illumination": lightLayer,
};
L.control.layers({}, overlayMaps).addTo(map);
var coordControl = new CoordControl();
coordControl.addTo(map);
map.on('mousemove', function(e) {
coordControl.update(Math.round(e.latlng.lng), Math.round(-e.latlng.lat));
});
};
xhr.open('GET', 'data/info.json', true);
xhr.send();
}
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