Difference between revisions of "MediaWiki:Common.js"

Revision as of 17:37, 3 September 2018

/* Any JavaScript here will be loaded for all users on every page load. */
$(function () {

  var myElement = document.getElementById('jsexample');


        function daysInYear(year) {
    if(year % 4 === 0 && (year % 100 !== 0 || year % 400 === 0)) {
        // Leap year
        return 366;
    } else {
        // Not a leap year
        return 365;
    }
}

function dayOfYear(dn, mn, yn) {   // d is a Date object
var d1 = new Date(yn,0,1,12,0,0); // noon on Jan. 1
var d2 = new Date(yn,mn-1,dn,12,0,0); // noon on input date
var ddiff = Math.round((d2-d1)/864e5);
return ddiff+1; }

       
        function calculate ()
        {
          var day = document.getElementById('day').value;
          var month = document.getElementById('month').value;
          var year = document.getElementById('year').value;
          var hour = document.getElementById('hour').value;
          var minute = document.getElementById('minute').value;

          var ydays = daysInYear(year);
          var aday = dayOfYear(day, month, year);
                    
          var tmp = ((1/ydays * ( aday - 1 + hour/24 + minute/1440)) - 2323 + year/1);
          var stardate = 1000 * ( year/1 + (1/ydays * ( aday - 1 + hour/24 + minute/1440)) -2323 );
         
          document.getElementById('stardate_out').innerHTML = stardate;
        }

        function calculate_out ()
        {
          var stardate =sdin.value;

          
          var tmp = stardate/1000 + 2323;
          var year = Math.floor(tmp);
          
          var ydays = daysInYear(year);

          var tmpd = (tmp - year) * ydays + 1;
          var aday = Math.floor(tmpd);
          
	  var d1 = new Date(year,0,1,12,0,0); // noon on Jan. 1
	  var d2 = (aday - 1)*864e5 + d1.getTime();
	  var mydate = new Date(d2);

          var day = mydate.getDate();
          var month = mydate.getMonth() + 1;
          
          
          var tmph = (tmpd - aday) * 24;
          var hour = Math.floor(tmph);
          
          var tmpz = (tmph - hour) * 60;
          var minute = Math.floor(tmpz);

          day_out.innerHTML= day;
          month_out.innerHTML= month;
          year_out.innerHTML= year;
          hour_out.innerHTML= hour;
          minute_out.innerHTML= minute;

        }


var input= document.createElement("input");
input.type = "text";
myElement.appendChild(input);

var sdin= document.createElement("input");
sdin.type = "text";
sdin.setAttribute('onkeyup', 'calculate_out()');
sdin.onkeyup = function() { calculate_out(); };
var t = document.createTextNode("Sternzeit: ");
sdin.appendChild(t);
myElement.appendChild(sdin);

var day_out=document.createElement("p");
myElement.appendChild(day_out);

var month_out=document.createElement("p");
myElement.appendChild(month_out);

var year_out=document.createElement("p");
myElement.appendChild(year_out);

var hour_out=document.createElement("p");
myElement.appendChild(hour_out);

var minute_out=document.createElement("p");
myElement.appendChild(minute_out);
}());