BZZZZ: moomoo.io chat shortcuts

// ==UserScript==
// @name         moomoo.io chat shortcuts
// @namespace    http://bzzzzdzzzz.blogspot.com/
// @version      0.1
// @description  read name
// @author       BZZZZ
// @match        *://moomoo.io/*
// @match        *://sandbox.moomoo.io/*
// @grant        none
// ==/UserScript==

var chatShortcuts = { // add or remove stuff here
    "KeyH": "Hello!",
    "KeyB": "Bye!",
    "KeyG": "Goodbye, cruel world."
};

var sockSend = WebSocket.prototype.send, sock;
var blobOptions = {"type": "application/octet-stream"};

function sendChat(msg) {
    msg = new Blob([msg], blobOptions);
    var size = msg.size;
    if ((size > 30) || (size < 1)) throw new Error("invalid message size");
    sockSend.call(sock, new Blob([new Uint8Array([146, 162, 99, 104, 145, 160 + size]), msg], blobOptions));
}

function isHidden(element) {
    return window.getComputedStyle(element, null).getPropertyValue("display") === "none";
}

function socketFoundCallBack() {
    document.addEventListener("keydown", function (evt) {
        var msg = chatShortcuts[evt.code];
        if ((typeof msg !== "undefined") && isHidden(chatHolder) && !isHidden(gameUI) && isHidden(allianceMenu)) sendChat(msg);
    }, false);
}

WebSocket.prototype.send = function () {
    WebSocket.prototype.send = sockSend;
    sock = this;
    socketFoundCallBack();
    return sockSend.apply(this, arguments);
};
BZZZZ

moomoo.io chat shortcuts

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