Tracks Keno random numbers and displays a heat map with light gray to dark red gradient
// ==UserScript==
// @name Keno Heatmap
// @namespace http://tampermonkey.net/
// @version 1.0.1
// @description Tracks Keno random numbers and displays a heat map with light gray to dark red gradient
// @author Allenone[2033011]
// @match https://www.torn.com/page.php?sid=keno
// @icon https://www.google.com/s2/favicons?sz=64&domain=torn.com
// @grant GM_setValue
// @grant GM_getValue
// ==/UserScript==
(function() {
'use strict';
const win = (unsafeWindow || window);
const TARGET_URL_BASE = "torn.com/page.php";
// Initialize frequency cache for numbers 1-80
function initializeFrequencyCache() {
let frequency = GM_getValue('kenoNumberFrequency', null);
if (!frequency) {
frequency = {};
for (let i = 1; i <= 80; i++) {
frequency[i] = 0;
}
GM_setValue('kenoNumberFrequency', frequency);
}
return frequency;
}
// Update frequency cache with new random numbers
function updateFrequencyCache(randomNumbers) {
let frequency = initializeFrequencyCache();
randomNumbers.forEach(num => {
if (num >= 1 && num <= 80) {
frequency[num] = (frequency[num] || 0) + 1;
}
});
GM_setValue('kenoNumberFrequency', frequency);
updateHotspotMap(frequency);
}
// Interpolate between two RGB colors
function interpolateColor(startColor, endColor, factor) {
const result = startColor.slice();
for (let i = 0; i < 3; i++) {
result[i] = Math.round(startColor[i] + (endColor[i] - startColor[i]) * factor);
}
return `rgb(${result[0]}, ${result[1]}, ${result[2]})`;
}
// Update the hotspot map with color gradient from light gray to dark red
function updateHotspotMap(frequency) {
const startColor = [211, 211, 211]; // Light gray (#D3D3D3)
const endColor = [139, 0, 0]; // Dark red (#8B0000)
const maxFrequency = Math.max(...Object.values(frequency), 1); // Avoid division by 0
const style = document.createElement('style');
style.textContent = `
#boardContainer span {
border: 1px solid #ccc;
border-radius: 4px;
box-sizing: border-box;
transition: background-color 0.3s;
}
`;
document.head.appendChild(style);
for (let i = 1; i <= 80; i++) {
const element = document.getElementById(`keno_item_${i}`);
if (element) {
const freq = frequency[i] || 0;
const factor = freq / maxFrequency; // Normalize frequency
const color = interpolateColor(startColor, endColor, factor);
element.style.backgroundColor = color;
element.style.color = 'black';
}
}
}
// Observe DOM for boardContainer and initialize hotspot map
function initializeHotspotOnBoardLoad() {
const targetNode = document.body;
const observer = new MutationObserver((mutations, obs) => {
const boardContainer = document.getElementById('boardContainer');
if (boardContainer) {
updateHotspotMap(initializeFrequencyCache());
obs.disconnect(); // Stop observing once board is found
}
});
observer.observe(targetNode, {
childList: true,
subtree: true
});
}
// Start observing for boardContainer
initializeHotspotOnBoardLoad();
const originalOpen = XMLHttpRequest.prototype.open;
const originalSend = XMLHttpRequest.prototype.send;
XMLHttpRequest.prototype.open = function(method, url, async, user, pass) {
this._url = url;
return originalOpen.apply(this, arguments);
};
XMLHttpRequest.prototype.send = function(body) {
const isTargetUrl = this._url && this._url.includes(TARGET_URL_BASE);
if (isTargetUrl) {
const xhr = this;
const handleResponse = function(event) {
if (xhr.readyState === 4 && xhr.status === 200 && xhr.responseText) {
try {
const json = JSON.parse(xhr.responseText);
if (json.matches !== undefined && json.winnings !== undefined) {
//console.log(JSON.stringify(json, null, 2));
if (json.randomNumbers && Array.isArray(json.randomNumbers)) {
updateFrequencyCache(json.randomNumbers);
}
}
} catch (err) {
}
}
};
xhr.addEventListener('load', handleResponse);
}
return originalSend.apply(this, arguments);
};
})();