Improbable Truancy Meter

improbable_truancy_meter.user.js

// ==UserScript==
// @name           Improbable Truancy Meter
// @namespace      http://www.shadedraco.com/improbabletruancy
// @include        http://improbableisland.com/*
// @include        http://www.improbableisland.com/*
// ==/UserScript==

var CharInfo = document.evaluate("//table[@class='charinfo']", document, null, XPathResult.ANY_UNORDERED_NODE_TYPE, null).singleNodeValue;
if (CharInfo) {
  var LevelRow = document.evaluate("//td[@class='charinfo']/b/span[@class='colLtWhite'][text()='Level']/../../..", CharInfo, null, XPathResult.ANY_UNORDERED_NODE_TYPE, null).singleNodeValue;
  if (LevelRow) {
    var Level = new Number(LevelRow.cells[1].childNodes[0].childNodes[0].textContent);
    var ExperienceRow = LevelRow.parentNode.rows[LevelRow.rowIndex+1];
    var ExperienceMatch = ExperienceRow.cells[1].childNodes[0].childNodes[0].textContent.match(/^([\d,]+)\/([\d,]+)$/);
    var Experience = new Number(ExperienceMatch[1].replace(/,/g,''));
    var ExperienceNextLevel = new Number(ExperienceMatch[2].replace(/,/g,''));
    var ExperienceTable = {
      1 : 0,
      2 : 100,
      3 : 400,
      4 : 1002,
      5 : 1912,
      6 : 3140,
      7 : 4707,
      8 : 6641,
      9 : 8985,
      10 : 11795,
      11 : 15143,
      12 : 19121,
      13 : 23840,
      14 : 29437,
      15 : 36071,
      16 : 43930,
      17 : 43930, // Doesn't actually exist, but I needed to put something here
    };
    var DKs = (ExperienceNextLevel - ExperienceTable[Level+1]) / Level / 25;
    var ExperienceThisLevel = ExperienceTable[Level] + ((Level-1) * DKs * 25);
    var ExperienceTruancy = ExperienceTable[Level+2] + ((Level+1) * DKs * 25);
    var TruancyBarWidth = ((Experience - ExperienceNextLevel) / (ExperienceTruancy - ExperienceNextLevel)) * 100;
    if (TruancyBarWidth < 0) TruancyBarWidth = 0;
    if (TruancyBarWidth > 100) TruancyBarWidth = 100;
    var RemainderWidth = 100 - TruancyBarWidth;
    ExperienceRow.cells[1].innerHTML +=
      "<span class='colLtYellow'>" + 
      "<table style='border: solid 1px #000000;' bgcolor='red'  cellpadding='0' cellspacing='0' width='70' height='5'><tr><td width='"+TruancyBarWidth+"%' bgcolor='"+(Experience>=ExperienceTruancy?'blue':'white')+"'></td><td width='"+RemainderWidth+"%'></td></tr></table>" + 
      "</span>";
  }
}