MediaWiki:Calculators.js

function bleedResistanceCalculator() {
  var st = Number(document.getElementById("st").value);
  var en = Number(document.getElementById("en").value);
  var ag = Number(document.getElementById("ag").value);
  var lk = Number(document.getElementById("lk").value);
  var bonus = Number(document.getElementById("bonus").value);
  var bleedRes = Math.floor((((21 - lk)*lk)/2 - 15 + ag + 2*en + 2*st) / 2);
  bleedRes += bonus;
  var bleedDmg = Math.floor((1.0 - Math.pow(2.0,-1.0/Math.max(1.0,bleedRes/5.0)))*100);
  document.getElementById("bleedRes").innerHTML = bleedRes;
  document.getElementById("bleedDmg").innerHTML = bleedDmg;
}

$(function () {
  if ($('#bleedResistanceCalculator').length) {
    document.getElementById('bleedResistanceCalculator').innerHTML =
      '<input id="st" type="number" value="5" min ="1" max="15" style="width: 40px"> Strength<br>' +
      '<input id="en" type="number" value="5" min ="1" max="15" style="width: 40px"> Endurance<br>' +
      '<input id="ag" type="number" value="5" min ="1" max="15" style="width: 40px"> Agility<br>' +
      '<input id="lk" type="number" value="5" min ="1" max="15" style="width: 40px"> Luck<br>' +
      '<input id="bonus" type="number" value="0" min ="-100" max="100" step="10" style="width: 40px"> Bonus (Perks, Drugs, etc.)<br>' +
      '<button type="button" onclick="bleedResistanceCalculator()">Calculate</button>' +
      '<p><b><a id="bleedRes"></a> Bleed Resistance</b></p>' +
      '<p><b><a id="bleedDmg"></a> % of bleed into damage per second</b></p>';
  }
});