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Allows to change zoom of the game using mouse wheels
// ==UserScript==
// @name Moomoo.io Zoom hack
// @author Murka
// @description Allows to change zoom of the game using mouse wheels
// @icon https://moomoo.io/img/favicon.png?v=1
// @version 0.7
// @match *://moomoo.io/*
// @match *://*.moomoo.io/*
// @run-at document-start
// @grant none
// @license MIT
// @namespace https://greasyfork.org/users/919633
// ==/UserScript==
/* jshint esversion:6 */
/*
Author: Murka
Github: https://github.com/Murka007
Discord: https://discord.gg/sG9cyfGPj5
Greasyfork: https://greasyfork.org/en/users/919633
MooMooForge: https://github.com/MooMooForge
*/
(function() {
"use strict";
const log = console.log;
function linker(value) {
const hook = {
0: value,
toString: (radix) => hook[0].toString(radix),
valueOf: () => hook[0].valueOf(),
get length() {
return hook[0].length;
}
};
return hook;
}
function createHook(target, prop, callback) {
const symbol = Symbol(prop);
Object.defineProperty(target, prop, {
get() { return this[symbol]; },
set(value) { callback(this, symbol, value); },
configurable: true
})
}
createHook(window, "config", function(that, symbol, value) {
if (typeof value === "object" && value.hasOwnProperty("maxScreenHeight")) {
delete window.config;
Object.defineProperty(window, "config", {
value: value,
configurable: false,
writeable: false
})
}
})
// Bypass checkTrusted, so it will just return a callback
createHook(Object.prototype, "checkTrusted", function(that, symbol, value) {
delete Object.prototype.checkTrusted;
that.checkTrusted = (callback) => callback;
})
// You can change to your own scale factor
const scale = {
width: 192,
height: 108
};
// Intercept when assigning value to maxScreenHeight, then add our hooks to it
createHook(Object.prototype, "maxScreenHeight", function(that, symbol, value) {
delete Object.prototype.maxScreenHeight;
that.maxScreenWidth = linker(1920 + scale.width * 3);
that.maxScreenHeight = linker(1080 + scale.height * 3);
})
let wheels = 0;
window.addEventListener("wheel", function(event) {
const { maxScreenWidth, maxScreenHeight } = window.config || {};
if (event.target.id !== "gameCanvas") return;
// Used to create a small gap, so users could easily find the default scale
if (maxScreenWidth[0] === 1920 && maxScreenHeight[0] === 1080) wheels += 1;
if (wheels % 5 !== 0) return;
const { width, height } = scale;
maxScreenWidth[0] = Math.max(width, maxScreenWidth[0] + (event.deltaY > 0 ? -width : width));
maxScreenHeight[0] = Math.max(height, maxScreenHeight[0] + (event.deltaY > 0 ? -height : height));
window.dispatchEvent(new Event("resize"));
})
})();