Notes

// ==UserScript==
// @name Free Agar.io Bots (Vanilla Version)
// @version 1.0.0
// @description Free open source agar.io bots
// @author Nel
// @grant none
// @run-at document-start
// @match *://agar.io/*
// ==/UserScript==

/* START OF USER SETTINGS */

window.SERVER_HOST = '35.225.190.21' // Hostname/IP of the server where the bots are running [Default = localhost (your own pc)]

window.SERVER_PORT = 1337 // Port number used on the server where the bots are running [Default = 1337]

window.BOTS_SPLIT_KEY = 't' // Keyboard key to make the bots split, value must be between a-z (lowercase) or 0-9 [Default = t]

window.BOTS_FEED_KEY = 'a' // Keyboard key to make the bots feed, value must be between a-z (lowercase) or 0-9 [Default = a]

window.BOTS_AI_KEY = 'f' // Keyboard key to enable/disable bots AI (Artificial Intelligence), value must be between a-z (lowercase) or 0-9 [Default = f]

window.MACRO_FEED_KEY = 'e' // Keyboard key to make the user macro feed, value must be between a-z (lowercase) or 0-9 [Default = e]

window.DOUBLE_SPLIT_KEY = 'q' // Keyboard key to make the user double split, value must be between a-z (lowercase) or 0-9 [Default = q]

window.SIXTEEN_SPLIT_KEY = 'r' // Keyboard key to make the user sixteen split, value must be between a-z (lowercase) or 0-9 [Default = r]

window.ZOOM_SPEED = 0.85 // Numerical value that indicates the speed of the mouse wheel when zooming, value must be between 0.01-0.99 [Default = 0.85]

window.EXTENDED_ZOOM = true // Boolean value that indicates whether to extend the zoom or not, possible values are true and false [Default = true]

window.DRAW_MAP_GRID = false // Boolean value that indicates whether to draw the map grid or not, possible values are true and false [Default = false]

window.SHOW_ALL_PLAYERS_MASS = true // Boolean value that indicates whether to show all players mass or not, possible values are true and false [Default = true]

/* END OF USER SETTINGS */

class Writer {
constructor(size){
this.dataView = new DataView(new ArrayBuffer(size))
this.byteOffset = 0
}
writeUint8(value){
this.dataView.setUint8(this.byteOffset++, value)
}
writeInt32(value){
this.dataView.setInt32(this.byteOffset, value, true)
this.byteOffset += 4
}
writeUint32(value){
this.dataView.setUint32(this.byteOffset, value, true)
this.byteOffset += 4
}
writeString(string){
for(let i = 0; i < string.length; i++) this.writeUint8(string.charCodeAt(i))
this.writeUint8(0)
}
}

window.buffers = {
startBots(url, protocolVersion, clientVersion, userStatus, botsName, botsAmount){
const writer = new Writer(13 + url.length + botsName.length)
writer.writeUint8(0)
writer.writeString(url)
writer.writeUint32(protocolVersion)
writer.writeUint32(clientVersion)
writer.writeUint8(Number(userStatus))
writer.writeString(botsName)
writer.writeUint8(botsAmount)
return writer.dataView.buffer
},
mousePosition(x, y){
const writer = new Writer(9)
writer.writeUint8(6)
writer.writeInt32(x)
writer.writeInt32(y)
return writer.dataView.buffer
}
}

window.connection = {
ws: null,
connect(){
this.ws = new WebSocket(`ws://${window.SERVER_HOST}:${window.SERVER_PORT}`)
this.ws.binaryType = 'arraybuffer'
this.ws.onopen = this.onopen.bind(this)
this.ws.onmessage = this.onmessage.bind(this)
this.ws.onclose = this.onclose.bind(this)
},
send(buffer){
if(this.ws && this.ws.readyState === WebSocket.OPEN) this.ws.send(buffer)
},
onopen(){
document.getElementById('userStatus').style.color = '#00C02E'
document.getElementById('userStatus').innerText = 'Connected'
document.getElementById('connect').disabled = true
document.getElementById('startBots').disabled = false
document.getElementById('stopBots').disabled = false
},
onmessage(message){
const dataView = new DataView(message.data)
switch(dataView.getUint8(0)){
case 0:
document.getElementById('startBots').disabled = true
document.getElementById('stopBots').disabled = false
document.getElementById('startBots').style.display = 'none'
document.getElementById('stopBots').style.display = 'inline'
document.getElementById('stopBots').innerText = 'Stop Bots'
window.user.startedBots = true
break
case 1:
document.getElementById('stopBots').disabled = true
document.getElementById('stopBots').innerText = 'Stopping Bots...'
break
case 2:
document.getElementById('botsAI').style.color = '#DA0A00'
document.getElementById('botsAI').innerText = 'Disabled'
document.getElementById('startBots').disabled = false
document.getElementById('stopBots').disabled = true
document.getElementById('startBots').style.display = 'inline'
document.getElementById('stopBots').style.display = 'none'
document.getElementById('stopBots').innerText = 'Stop Bots'
window.user.startedBots = false
window.bots.ai = false
break
case 3:
alert('Your IP has captcha and bots are unable to spawn, change your ip with a VPN or something to one that doesn't has captcha in order to use the bots')
break
}
},
onclose(){
document.getElementById('userStatus').style.color = '#DA0A00'
document.getElementById('userStatus').innerText = 'Disconnected'
document.getElementById('botsAI').style.color = '#DA0A00'
document.getElementById('botsAI').innerText = 'Disabled'
document.getElementById('connect').disabled = false
document.getElementById('startBots').disabled = true
document.getElementById('stopBots').disabled = true
document.getElementById('startBots').style.display = 'inline'
document.getElementById('stopBots').style.display = 'none'
window.user.startedBots = false
window.bots.ai = false
}
}

window.game = {
url: '',
protocolVersion: 0,
clientVersion: 0
}

window.user = {
startedBots: false,
isAlive: false,
mouseX: 0,
mouseY: 0,
offsetX: 0,
offsetY: 0,
macroFeedInterval: null
}

window.bots = {
name: '',
amount: 0,
ai: false
}

function modifyCore(core){
return core
.replace(/if(w+.MC&&w+.MC.onPlayerSpawn)/, `
$&
window.user.isAlive = true
if(window.user.startedBots) window.connection.send(new Uint8Array([5, Number(window.user.isAlive)]).buffer)
`)
.replace(/if(w+.MC&&w+.MC.onPlayerDeath)/, `
$&
window.user.isAlive = false
if(window.user.startedBots) window.connection.send(new Uint8Array([5, Number(window.user.isAlive)]).buffer)
`)
.replace(/news+WebSocket((w+(w+)))/, `
$&
if(window.user.startedBots) window.connection.send(new Uint8Array([1]).buffer)
window.game.url = $1
window.user.isAlive = false
window.user.macroFeedInterval = null
`).replace(/(w+)=~~(+w+[w++d+>>3]+s++((w+[w++d+>>2]|0)-((w+[d+]|0)/2|0)|0)/w+);(w+)=~~(+w+[w++d+>>3]+s++((w+[w++d+>>2]|0)-((w+[d+]|0)/2|0)|0)/w+)/, `
$&
window.user.mouseX = $1 - window.user.offsetX
window.user.mouseY = $2 - window.user.offsetY
if(window.user.startedBots && window.user.isAlive) window.connection.send(window.buffers.mousePosition(window.user.mouseX, window.user.mouseY))
`)
.replace(/w+[w++272>>3]=(w+);w+[w++280>>3]=(w+);w+[w++288>>3]=(w+);w+[w++296>>3]=(w+)/, `
$&
if(~~($3 - $1) === 14142 && ~~($4 - $2) === 14142){
window.user.offsetX = ($1 + $3) / 2
window.user.offsetY = ($2 + $4) / 2
}
`)
.replace(/(.9,/, '(window.ZOOM_SPEED,')
.replace(/;if((w+)<1.0)/, ';if($1 < (window.EXTENDED_ZOOM ? 0.05 : 1))')
.replace(/(w+(d+,w+|0,.5,.5)|0);(w+(d+,w+|0,.5,50.5)|0);(w+(d+,w+|0,.5,.5)|0);(w+(d+,w+|0,50.5,.5)|0)/, `
$1
if(window.DRAW_MAP_GRID) $2
$3
if(window.DRAW_MAP_GRID) $4
`)
.replace(/while(0);(w+)=(w+|0)!=(w+|0);/, `
$&
if(window.SHOW_ALL_PLAYERS_MASS) $1 = true
`)
}

function setKeysEvents(){
document.addEventListener('keydown', e => {
if(!document.getElementById('overlays')){
switch(e.key){
case window.BOTS_SPLIT_KEY:
if(window.user.startedBots && window.user.isAlive) window.connection.send(new Uint8Array([2]).buffer)
break
case window.BOTS_FEED_KEY:
if(window.user.startedBots && window.user.isAlive) window.connection.send(new Uint8Array([3]).buffer)
break
case window.BOTS_AI_KEY:
if(window.user.startedBots && window.user.isAlive){
if(!window.bots.ai){
document.getElementById('botsAI').style.color = '#00C02E'
document.getElementById('botsAI').innerText = 'Enabled'
window.bots.ai = true
window.connection.send(new Uint8Array([4, Number(window.bots.ai)]).buffer)
}
else {
document.getElementById('botsAI').style.color = '#DA0A00'
document.getElementById('botsAI').innerText = 'Disabled'
window.bots.ai = false
window.connection.send(new Uint8Array([4, Number(window.bots.ai)]).buffer)
}
}
break
case window.MACRO_FEED_KEY:
if(!window.user.macroFeedInterval){
window.core.eject()
window.user.macroFeedInterval = setInterval(window.core.eject, 80)
}
break
case window.DOUBLE_SPLIT_KEY:
window.core.split()
setTimeout(window.core.split, 40)
break
case window.SIXTEEN_SPLIT_KEY:
window.core.split()
setTimeout(window.core.split, 40)
setTimeout(window.core.split, 80)
setTimeout(window.core.split, 120)
break
}
}
})
document.addEventListener('keyup', e => {
if(!document.getElementById('overlays') && e.key === window.MACRO_FEED_KEY && window.user.macroFeedInterval){
clearInterval(window.user.macroFeedInterval)
window.user.macroFeedInterval = null
}
})
}

function setGUI(){
document.getElementById('advertisement').innerHTML = `
<h2 id="botsInfo">
<a href="https://discord.gg/SDMNEcJ" target="_blank">Free Agar.io Bots</a>
</h2>
<h5 id="botsAuthor">
Developed by <a href="https://www.youtube.com/channel/UCZo9WmnFPWw38q65Llu5Lug" target="_blank">Nel</a>
</h5>
<span id="statusText">Status: <b id="userStatus">Disconnected</b></span>
<br>
<br>
<span id="aiText">Bots AI: <b id="botsAI">Disabled</b></span>
<br>
<input type="text" id="botsName" placeholder="Bots Name" maxlength="15" spellcheck="false">
<input type="number" id="botsAmount" placeholder="Bots Amount" min="10" max="199" spellcheck="false">
<button id="connect">Connect</button>
<br>
<button id="startBots" disabled>Start Bots</button>
<button id="stopBots">Stop Bots</button>
`
if(localStorage.getItem('localStoredBotsName') !== null){
window.bots.name = localStorage.getItem('localStoredBotsName')
document.getElementById('botsName').value = window.bots.name
}
if(localStorage.getItem('localStoredBotsAmount') !== null){
window.bots.amount = JSON.parse(localStorage.getItem('localStoredBotsAmount'))
document.getElementById('botsAmount').value = String(window.bots.amount)
}
}

function setGUIStyle(){
document.getElementsByTagName('head')[0].innerHTML += `
<style type="text/css">
#mainui-ads {
height: 360px !important;
}
#botsInfo > a, #botsAuthor > a {
color: #3894F8;
text-decoration: none;
}
#botsAuthor {
margin-top: -15px;
letter-spacing: 1px;
}
#statusText, #aiText {
font-weight: bold;
}
#userStatus, #botsAI {
color: #DA0A00;
}
#botsName, #botsAmount {
margin-top: 15px;
width: 144px;
border: 1px solid black;
border-radius: 5px;
padding: 8px;
font-size: 14.5px;
outline: none;
}
#botsName:focus, #botsAmount:focus {
border-color: #7D7D7D;
}
#connect, #startBots, #stopBots {
color: white;
border: none;
border-radius: 5px;
padding: 7px;
width: 160px;
font-size: 18px;
outline: none;
margin-top: 15px;
letter-spacing: 1px;
}
#connect {
display: inline;
margin-left: 5px;
background-color: #0074C0;
}
#startBots {
display: inline;
background-color: #00C02E;
}
#stopBots {
display: none;
background-color: #DA0A00;
}
#connect:active {
background-color: #004E82;
}
#startBots:active {
background-color: #009A25;
}
#stopBots:active {
background-color: #9A1B00;
}
</style>
`
}

function setGUIEvents(){
document.getElementById('botsAmount').addEventListener('keypress', e => {
e.preventDefault()
})
document.getElementById('botsName').addEventListener('change', function(){
window.bots.name = this.value
localStorage.setItem('localStoredBotsName', window.bots.name)
})
document.getElementById('botsAmount').addEventListener('change', function(){
window.bots.amount = Number(this.value)
localStorage.setItem('localStoredBotsAmount', window.bots.amount)
})
document.getElementById('connect').addEventListener('click', () => {
if(!window.connection.ws || window.connection.ws.readyState !== WebSocket.OPEN) window.connection.connect()
})
document.getElementById('startBots').addEventListener('click', () => {
if(window.game.url && window.game.protocolVersion && window.game.clientVersion && !window.user.startedBots){
if(window.bots.name && window.bots.amount) window.connection.send(window.buffers.startBots(window.game.url, window.game.protocolVersion, window.game.clientVersion, window.user.isAlive, window.bots.name, window.bots.amount))
else alert('Bots name and amount are required before starting the bots')
}
})
document.getElementById('stopBots').addEventListener('click', () => {
if(window.user.startedBots) window.connection.send(new Uint8Array([1]).buffer)
})
}

WebSocket.prototype.storedSend = WebSocket.prototype.send
WebSocket.prototype.send = function(buffer){
this.storedSend(buffer)
const dataView = new DataView(new Uint8Array(buffer).buffer)
if(!window.game.protocolVersion && dataView.getUint8(0) === 254) window.game.protocolVersion = dataView.getUint32(1, true)
else if(!window.game.clientVersion && dataView.getUint8(0) === 255) window.game.clientVersion = dataView.getUint32(1, true)
}

new MutationObserver(mutations => {
mutations.forEach(({addedNodes}) => {
addedNodes.forEach(node => {
if(node.nodeType === 1 && node.tagName === 'SCRIPT' && node.src && node.src.includes('agario.core.js')){
node.type = 'javascript/blocked'
node.parentElement.removeChild(node)
fetch(node.src)
.then(res => res.text())
.then(core => {
Function(modifyCore(core))()
setKeysEvents()
setTimeout(() => {
setGUI()
setGUIStyle()
setGUIEvents()
}, 3500)
})
}
})
})
}).observe(document.documentElement, {
childList: true,
subtree: true
})