Kolobok Finder

// ==UserScript==
// @name         Kolobok Alternative Decoder
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  View Kolobok parameters on simplemarket
// @author       Nobody
// @match        https://wax.simplemarket.io/*
// @icon         https://www.google.com/s2/favicons?domain=simplemarket.io
// @require  https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @require  https://gist.github.com/raw/2625891/waitForKeyElements.js
// @grant    GM_addStyle
// @grant    GM.getValue
// ==/UserScript==
//- The @grant directives are needed to restore the proper sandbox.

waitForKeyElements ("img[src*='kolobok']", loadHandling);
//waitForKeyElements ("img.mat-card-image.ng-lazyloaded[src*='kolobok']", loadHandling);
//waitForKeyElements ("img.ng-lazyloaded[src*='kolobok']", loadHandling);

function loadHandling (jNode) {
    if (jNode[0].complete) {
        handleImgTag (jNode);
    }
    else {
        jNode.on ('load', handleImgTag);
    }
}
function handleImgTag (jNodeOrEvent) {
    var newImg;//  will be jQuery node
    if (jNodeOrEvent instanceof jQuery) {
        newImg = jNodeOrEvent;
    }
    else {
        newImg = $(jNodeOrEvent.target);
    }
    console.log ("Found new image with width ", newImg.width () );
    let hashString = newImg.attr('src').split("/").slice(-1).join("/").split(".").slice(0,-1).join(".");
    let kolobok = calc(hashString);
    let speed_text = kolobok[0] > 100 ? "<font color=red>"+kolobok[0]+"</font>" : kolobok[0];
    let stealth_text = kolobok[1] > 0.5 ? "<font color=red>"+kolobok[1]+"</font>" : kolobok[1];
    newImg.parent().parent().append("SPEED: ",speed_text," STEALTH: ",stealth_text);

}

function calc(url) {
    var e = url;
    console.log(e)
    const t = e.length;
    const n = e.length / 2;
    const l = [e.slice(0, 2), e.slice(t - 2, t)];
    const r = [e.slice(n - 2, n), e.slice(n, n + 2)];

    var speed = Math.abs(parseInt(l[0], 16) - parseInt(l[1], 16));
    var stealth = ((255 - Math.abs(parseInt(r[0], 16) - parseInt(r[1], 16))) / 255).toFixed(2);

//    console.log('stealth, speed =',stealth,', ',speed);
//    let genome_info = 'Genome '+ e
//    let speed_stealth = 'STEALTH: ' + stealth + ' SPEED: ' + speed
//    let message = genome_info + ' ' + speed_stealth
    return [speed, stealth]
//    return message
}