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Draws markers on items
// ==UserScript==
// @name Moomoo.io Item markers
// @author Murka
// @description Draws markers on items
// @icon https://moomoo.io/img/favicon.png?v=1
// @version 0.3
// @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/cPRFdcZkeD
Greasyfork: https://greasyfork.org/en/users/919633
MooMooForge: https://github.com/MooMooForge
*/
(function() {
"use strict";
// render - false/true, used to toggle rendering of marker
// color - hex/rgb color, used to change marker color
const MARKER_COLOR = {
MY_PLAYER: {
render: true,
color: "#a7f060"
},
TEAMMATE: {
render: true,
color: "#fceb65"
},
ENEMY: {
render: true,
color: "#f76363"
}
};
const MARKER_SIZE = 10;
const log = console.log;
const createRecursiveHook = (target, prop, condition, callback) => {
(function recursiveHook() {
Object.defineProperty(target, prop, {
set(value) {
delete target[prop];
this[prop] = value;
if (
condition(this, value) &&
callback(this, value)
) return;
recursiveHook();
},
configurable: true
})
})();
}
function createHook(target, prop, setter, getter) {
const symbol = Symbol(prop);
Object.defineProperty(target, prop, {
get() {
getter(this, this[symbol]);
return this[symbol];
},
set(value) {
setter(this, symbol, value);
},
configurable: true
})
}
let item = null;
createHook(Object.prototype, "isItem", function(that, symbol, value) {
that[symbol] = value;
}, function(that, value) {
if (value === true) {
item = that;
}
});
const myPlayer = { id: null };
const teammates = [];
// myPlayer spawned
function setupPlayer(temp) {
myPlayer.id = temp[1];
}
function createDeleteClan(temp) {
if (!temp[1]) {
teammates.splice(0, teammates.length);
}
}
function updateClanList(temp) {
teammates.splice(0, teammates.length);
for (let i=0;i<temp[1].length;i+=2) {
const [ id, name ] = temp[1].slice(i, i+2);
teammates.push(id);
}
}
function getItemColor(id) {
if (id === myPlayer.id) return MARKER_COLOR.MY_PLAYER;
if (teammates.includes(id)) return MARKER_COLOR.TEAMMATE;
return MARKER_COLOR.ENEMY;
}
function drawMarker(ctx) {
if (!item || !item.owner || myPlayer.id === null) return;
const type = getItemColor(item.owner.sid);
if (!type.render) return;
ctx.fillStyle = type.color;
ctx.beginPath();
ctx.arc(0, 0, MARKER_SIZE, 0, 2 * Math.PI);
ctx.fill();
item = null;
}
// This method is called when item was drawn
CanvasRenderingContext2D.prototype.restore = new Proxy(CanvasRenderingContext2D.prototype.restore, {
apply(target, _this, args) {
drawMarker(_this);
return target.apply(_this, args);
}
});
document.msgpack = {
Encoder: null,
Decoder: null
};
// Intercept msgpack encoder
createRecursiveHook(
Object.prototype, "initialBufferSize",
(_this) => (
typeof _this === "object" &&
typeof _this.encode === "function" &&
_this.encode.length === 1
),
(_this) => {
document.msgpack.Encoder = _this;
return true;
}
);
// Intercept msgpack decoder
createRecursiveHook(
Object.prototype, "maxExtLength",
(_this) => (
typeof _this === "object" &&
typeof _this.decode === "function" &&
_this.decode.length === 1
),
(_this) => {
document.msgpack.Decoder = _this;
return true;
}
);
// previous way to get msgpack encoder and decoder.
// Get msgpack's encode and decode methods
/*Function.prototype.call = new Proxy(Function.prototype.call, {
apply(target, _this, args) {
const data = target.apply(_this, args);
if (args[1] && args[1].i) {
const i = args[1].i;
if (i === 9) msgpack.encode = args[0].encode;
if (i === 15) {
msgpack.decode = args[0].decode;
Function.prototype.call = target;
}
}
return data;
}
})*/
const PACKETS = {
1: setupPlayer,
st: createDeleteClan,
sa: updateClanList,
};
// Handle WebSocket data
function message(event) {
try {
const data = document.msgpack.Decoder.decode(new Uint8Array(event.data));
const temp = [data[0], ...data[1]];
PACKETS[temp[0]](temp);
} catch(err){}
}
// Intercept WebSocket
window.WebSocket = new Proxy(WebSocket, {
construct(target, args) {
const socket = new target(...args);
socket.addEventListener("message", message);
return socket;
}
});
// old intercept ws method
/*const set = Object.getOwnPropertyDescriptor(WebSocket.prototype, "onmessage").set;
Object.defineProperty(WebSocket.prototype, "onmessage", {
set(callback) {
return set.call(this, new Proxy(callback, {
apply(target, _this, args) {
message(args[0]);
return target.apply(_this, args);
}
}))
}
})*/
})();