MentalCalculation/hex.html at master · abatyr/MentalCalculation · GitHub

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head>
<title>HEX your Brain</title>
<style type="text/css">
html, body {
 height:100%;
 margin: 0;
 padding: 0;
 border: 1;
 outline: 0;
 font-family: 'Lucida Grande', 'Helvetica Neue', Helvetica, Arial, sans-serif;
 font-size: 100%;
 vertical-align: baseline;
 background: transparent;
}
div {
  background: #fff;
  margin: 0 auto;
  width: 300px;
  padding: 100px;
  text-align: center;
  /* border-radius */
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  border-radius: 5px;
  /* box-shadow */
  -webkit-box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  -moz-box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
  box-shadow: rgba(0,0,0,0.2) 0px 1px 3px;
}
table.stat {
    position: absolute;
    top: 15px;
    right: 15px;
    text-align: left;
    width: 250px;
  }
table.best {
    position: absolute;
    top: 15px;
    left: 15px;
    text-align: left;
    width: 300px;
  }

</style>

<script type="text/javascript">
var lvl = 0;
var a = 0;
var b = 0;
var last = 0;
var best = 0;
var best10 = 0;
var sum = 0;
var att = 0;
var rank = 0;
var lStorage = ('localStorage' in window && window['localStorage'] !== null);
var storedStr = '';
var storedResults = [];
var titles = ["Kid", "Novice", "Student", "Associate", "Bachelor", "Master", "Doctor", "Honoraris Causa Doctor"];
var ranking = [
[15000, 10000, 7000, 4000, 3000, 2300, 1900, 1700],
[40000, 25000, 15000, 8000, 6000, 5000, 4000, 3000],
[120000, 30000, 20000, 12000, 8000, 6000, 5000, 4000],
[150000, 40000, 25000, 15000, 10000, 8000, 6500, 5500],
[180000, 50000, 30000, 20000, 12000, 9000, 7500, 6500],
[200000, 60000, 35000, 25000, 15000, 11000, 9000, 7500],
[220000, 70000, 40000, 30000, 20000, 15000, 10500, 8500],
[250000, 80000, 45000, 35000, 25000, 18000, 14000, 10000],
[400000, 100000, 60000, 50000, 40000, 30000, 25000, 20000]];

function refresh_best10(){
	document.getElementById('best').rows[3].cells[1].innerHTML =
          (best10+'').slice(0,-4)+'.'+(best10+'').slice(-4);
        while((best10 < 10*ranking[lvl-1][rank])&&(rank < 8))rank++;
        if(rank > 0) document.getElementById('best').rows[5].cells[1].innerHTML = titles[rank-1];
        if(rank < 8) {
          var target = ranking[lvl-1][rank];
          document.getElementById('best').rows[6].cells[1].innerHTML =
            (target+'').slice(0,-3)+'.'+(target+'').slice(-3);
        }
        else document.getElementById('best').rows[6].cells[1].innerHTML = "Nirvana";
	storedResults[lvl-1] = best10;
	localStorage["hex"] = JSON.stringify(storedResults);
}
function new_quest(flag){
  var now = new Date();
  if(flag){
    document.getElementById('best').rows[8].cells[1].innerHTML =
now.getFullYear()+'.'+
('0'+(now.getMonth()+1)).slice(-2)+'.'+
('0'+now.getDate()).slice(-2) + ' ' +
('0'+now.getHours()).slice(-2)+':'+
('0'+now.getMinutes()).slice(-2)+':'+
('0'+now.getSeconds()).slice(-2);

    var row = document.getElementById('stat').insertRow(1);
    var cell = row.insertCell(0);
    sum += parseInt(now - last);
    att++;
    document.getElementById('best').rows[1].cells[1].innerHTML = att;
    if(best10 > 0){
      if(now - last < best10/10)
        cell.style.color = "Green";
      if(now - last > 3*best10/10)
        cell.style.color = "Red";
    }
    if((now - last < best)||(best == 0)) {
      best =  parseInt(now - last);
      document.getElementById('best').rows[2].cells[1].innerHTML = best;
      cell.style.fontSize = "150%";
    }
    cell.innerHTML = parseInt(now - last);
    cell = row.insertCell(0);
    cell.innerHTML = Number(a).toString(16) + '+' +
                     Number(b).toString(16) + '=' +
                     Number(a+b).toString(16);
    if(document.getElementById('stat').getElementsByTagName("tr").length > 11)
      sum -= parseInt(document.getElementById('stat').rows[11].cells[1].innerHTML);
    if(document.getElementById('stat').getElementsByTagName("tr").length >= 11){
      cell = row.insertCell(-1);
      cell.innerHTML = (sum+'').slice(0,-4)+'.'+(sum+'').slice(-4);
      document.getElementById('best').rows[4].cells[1].innerHTML = cell.innerHTML;
      if((sum < best10)||(best10 == 0)) {
        best10 = sum;
        refresh_best10();
      }
    }else{
      cell = row.insertCell(-1);
      cell.innerHTML = "-";
    }
    if(document.getElementById('stat').getElementsByTagName("tr").length > 25)
      document.getElementById('stat').deleteRow(-1);
  }
  a = Math.floor((Math.random()*15 + 1) * Math.pow(16,lvl-1));
  b = Math.floor((Math.random()*15 + 1) * Math.pow(16,lvl-1));
  str_a = Number(a).toString(16)
  str_a = (str_a.length % 2 == 1) ? '0'+str_a : str_a;
  str_a = str_a.replace(/\B(?=([0-9a-f]{2})+(?![0-9a-f]))/g, "&nbsp;");
  str_b = Number(b).toString(16)
  str_b = (str_b.length % 2 == 1) ? '0'+str_b : str_b;
  str_b = str_b.replace(/\B(?=([0-9a-f]{2})+(?![0-9a-f]))/g, "&nbsp;");
  last = now;
  document.getElementById('q').innerHTML = str_a + '<br />' + str_b;
  document.getElementById('inp').value = '';
}
function check(inp){
  if(a == 0){
      var last_lvl = lvl;
      lvl = parseInt(inp.value);
      if((lvl >= 1) && (lvl <= 9)){
          var now = new Date();
          last = 0;  sum = 0;
          if(last_lvl != lvl){
            for(var i = 1; i < 9; i++)
              document.getElementById('best').rows[i].cells[1].innerHTML = '';
            document.getElementById('best').rows[0].cells[1].innerHTML = lvl;
            document.getElementById('best').rows[7].cells[1].innerHTML = now.getFullYear()+'.'+('0'+(now.getMonth()+1)).slice(-2)+'.'+
('0'+now.getDate()).slice(-2) + ' ' + ('0'+now.getHours()).slice(-2)+':'+
('0'+now.getMinutes()).slice(-2)+':'+ ('0'+now.getSeconds()).slice(-2);
            best = 0; rank = 0; att = 0;
	    if (lStorage) {
	      storedStr = localStorage["hex"];
	    } else
	      storedStr = '';
	    if (typeof storedStr !== 'undefined' && storedStr !== null){
	      storedResults = JSON.parse(storedStr);
	      best10 = storedResults[lvl-1];
	      if(best10 > 0) refresh_best10();
	      else best10 = 0;
	    } else best10 = 0;
          }
          var rows = document.getElementById('stat').rows;
          for(; rows.length > 1; )
            document.getElementById('stat').deleteRow(-1);

          new_quest(0);
      }
      else
        lvl = last_lvl;
  }
  else {
      if(inp.value == Number(a+b).toString(16))
        new_quest(1);
      if(inp.value == 'q'){
          a = 0; b = 0; last = 0;
          document.getElementById('q').innerHTML = "Get ready"
          document.getElementById('inp').value = '';
        }
    }
}
</script>
</head>
<body>
<div>
Welcome to HEX your Brain!<br />
Addition in base 16 speed test.<br />
Task and answers in base 16.<br />
Letters abcdef should be in lower case.<br />
Choose level by typing <br />
Number from 1 to 9<br />
Type 'q' to stop.
<p id="q" style="font-family: monospace; font-size: 16pt">Get ready</p>
<input id="inp" type="text" onkeyup='check(this)' autofocus />
<br /><br />
<small><small>
Tips&hints:<br />
- <a href="https://en.wikipedia.org/wiki/Hexadecimal">Theoretical basics wiki</a><br />
- Time measurement is in milliseconds;<br />
- Level you choose corresponds to digit count of the numbers to sum up;
</small></small>
<br /><br />
We also have <br /><a href="./Sum.html">decimal addition test</a><br />
and <a href="./bignum.html">bignum addition test</a>
</div>
<table id="stat" class="stat" ><tr><td>Equation</td><td>Time (ms)</td><td>Average of 10(s)</td></tr></table>
<table id="best" class="best" >
<tr><td>Level</td><td></td></tr>
<tr><td>Attempts</td><td></td></tr>
<tr><td>Best one</td><td></td></tr>
<tr><td>Best avg of 10</td><td></td></tr>
<tr><td>Last avg of 10</td><td></td></tr>
<tr><td>Title</td><td></td></tr>
<tr><td>Next mark</td><td></td></tr>
<tr><td>First Attempt</td><td></td></tr>
<tr><td>Last Attempt</td><td></td></tr>
</table>
</body>
</html>