source: binary-improvements/webserver/js/index.js@ 138

SDTD_Projection = {
        project: function (latlng) {
                return new L.Point(latlng.lng / 16, latlng.lat / 16);
        },

        unproject: function (point) {
                return new L.LatLng(point.y * 16, point.x * 16);
        }
};

SDTD_CRS = L.extend({}, L.CRS.Simple, {
        projection: SDTD_Projection,
        transformation: new L.Transformation(1, 0, -1, 0),

        scale: function (zoom) {
                return Math.pow(2, zoom);
        }
});

var map = L.map('map', {
        zoomControl: true,
        attributionControl: false,
        crs: SDTD_CRS
}).setView([0, 0], 0);

L.tileLayer('../../map/{z}/{x}/{y}.png?t={time}', {
        maxZoom: 5,
        minZoom: 0,
        maxNativeZoom: 4,
        tileSize: 128,
        continuousWorld: true,
        tms: true,
        unloadInvisibleTiles: true,
        time: function() { return new Date().getTime(); }
}).addTo(map);

map.on('mousemove', function(e) {
        L.DomUtil.get('pos').textContent = "MouseCoord: " + Math.abs(e.latlng.lng) + (e.latlng.lng>=0 ? " E" : " W") + " / " + Math.abs(e.latlng.lat)+ (e.latlng.lat>=0 ? " N" : " S");
});