Slither.io bot

Bot for Slither.io

As of 2016-05-20. See the latest version.

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

You will need to install an extension such as Tampermonkey or Userscripts to install this script.

You will need to install an extension such as Tampermonkey to install this script.

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name Slither.io bot
// @include     http://slither.io/
// @author       Creec Winceptor
// @description  Bot for Slither.io
// @run-at document-end
// @grant    GM_info
// @grant         unsafeWindow
// @version 3
// @namespace https://greasyfork.org/users/3167
// ==/UserScript==

//CODE STARTS HERE
if (window.top != window.self)  //don't run on frames or iframes
    return;


REALSCORE = 10;
REALDNA = [1,1,1,1,1,1,1,1,1,1,1,1];

BESTRANK = 1000;
BESTSCORE = 1;

printbot = function() {
	console.log("Dumping bot data:\nREALDNA = " + JSON.stringify(REALDNA) + ";\nREALSCORE = " + REALSCORE + ";\nBESTRANK = " + BESTRANK + ";\nBESTSCORE = " + BESTSCORE + ";");
}

savedna = function() {
	if(typeof(Storage) !== "undefined") {
		localStorage["REALSCORE"] = REALSCORE;
		localStorage["REALDNA"] = JSON.stringify(REALDNA);
		localStorage["BESTRANK"] = BESTRANK;
		localStorage["BESTSCORE"] = BESTSCORE;
	}		
}

cleardna = function() {
	localStorage.removeItem("REALSCORE");
	localStorage.removeItem("REALDNA");
	
	localStorage.removeItem("BESTRANK");
	localStorage.removeItem("BESTSCORE");
	
	REALSCORE = 30;
	BESTRANK = 1000;
	
	var distavoid = 90;
	var preykerroin = 5;
	var viholliskerroin = 544;
	var vaarakerroin = 200;
	var chargedistance = 500;
	var pakoondistance = 70;
	var keskikerroin = 2.0;
	var keskihakukerroin = 0.1;

	REALDNA = [distavoid,preykerroin,viholliskerroin,vaarakerroin,chargedistance,pakoondistance,keskikerroin,keskihakukerroin];
		
	TESTDNA = REALDNA.slice();
	TESTSCORE = REALSCORE;
	
	testingdna = 1;
	DNA = REALDNA.slice();
	
	savedna();
}

if(typeof(Storage) !== "undefined") {
    // Code for localStorage/sessionStorage.
	
	if (!localStorage.REALSCORE || !localStorage.REALDNA || !localStorage.BESTRANK || !localStorage.BESTSCORE) {
		cleardna();
	}
	else
	{
		REALSCORE = localStorage["REALSCORE"]*1;
		REALDNA = JSON.parse(localStorage["REALDNA"]);
		BESTRANK = localStorage["BESTRANK"]*1;
		BESTSCORE = localStorage["BESTSCORE"]*1;
	}
} else {
    // Sorry! No Web Storage support..
}


TESTDNA = REALDNA.slice();
TESTSCORE = REALSCORE;

testingdna = 1;
DNA = REALDNA.slice();

var injected_dead = true;

var lastscore = 0;
var bestscore = 0;

var lastrank = 0;
var bestrank = 1000;
var uhka = false;


var ruokakerroin = 1/40;
var ruokapower = 1;
var vihollispower = 2;
var vaarapower = 2;
var preypower = 1;
var keskipower = 1;


var preychase = true;

var learnrate = 0.3;
var	precision = 100;


	
INJECTED = function() {
	var kerroin = 10000;
	if (animating) {
		if (snake) {
			accelerate = false;
			injected_dead = false;
			
			//xm = grd-snake.xx;
			//ym = grd-snake.yy;
			
			xt = 0;
			yt = 0;
			
			mindist = grd;
			
			
			for (var i = 0; i < preys.length; i++) {
				xtd = (preys[i].xx-snake.xx);
				ytd = (preys[i].yy-snake.yy);
				
				dist = Math.sqrt(xtd*xtd + ytd*ytd);
				
				xt += xtd/Math.pow(dist,preypower+1)*DNA[1];
				yt += ytd/Math.pow(dist,preypower+1)*DNA[1];
				
				if (dist < DNA[4] && preychase)
				{
					accelerate = true;
				}
			}

			uhka = false;
			for (var i = 0; i < snakes.length; i++) {
				//alert(myStringArray[i]);
				
				target = snakes[i];
				
				if (snake.id!=target.id)
				{
					xtd = (target.xx-snake.xx);
					ytd = (target.yy-snake.yy);
					
					dist = Math.sqrt(xtd*xtd + ytd*ytd)-DNA[0];
					dist = Math.max(1, dist);
					
					xt += -xtd/Math.pow(dist,vihollispower+1)*DNA[2];
					yt += -ytd/Math.pow(dist,vihollispower+1)*DNA[2];
					
					
					
					if (dist < DNA[5])
					{
						accelerate = true;
					}
					
					if (dist<mindist)
					{
						uhka = target;
						mindist = dist;
						/*if (mindist<300)
						{
							accelerate = true;
						}*/
					}
					
					parts = target.pts;
					for (var k = 0; k < parts.length; k++)
					{
						part = parts[k];
					
						xtd = (part.xx-snake.xx);
						ytd = (part.yy-snake.yy);
						
						dist = Math.sqrt(xtd*xtd + ytd*ytd)-DNA[0];
						dist = Math.max(1, dist);
						
						xt += -xtd/Math.pow(dist,vaarapower+1)*DNA[3];
						yt += -ytd/Math.pow(dist,vaarapower+1)*DNA[3];
					}
		
				}
			}
			
						
			if (!(preychase && preys.length>0))
			{
				for (var i = 0; i < foods_c; i++) {
					//alert(myStringArray[i]);
					
					xtd = (foods[i].xx-snake.xx);
					ytd = (foods[i].yy-snake.yy);
					
					dist = Math.sqrt(xtd*xtd + ytd*ytd);
					
					//xt += Math.pow(ruokakerroin*foods[i].fw,2)*xtd/Math.pow(dist,ruokapower+1);
					//yt += Math.pow(ruokakerroin*foods[i].fw,2)*ytd/Math.pow(dist,ruokapower+1);
					xt += Math.pow(foods[i].gr,2)*xtd/Math.pow(dist,ruokapower+1);
					yt += Math.pow(foods[i].gr,2)*ytd/Math.pow(dist,ruokapower+1);
				}
						
				xtd = (grd-snake.xx);
				ytd = (grd-snake.yy);
				
				dist = Math.sqrt(xtd*xtd + ytd*ytd);
				
				xt += xtd/Math.pow(grd-dist,keskipower+1)*DNA[6];
				yt += ytd/Math.pow(grd-dist,keskipower+1)*DNA[6];
				
				xt += xtd/grd*DNA[7];
				yt += ytd/grd*DNA[7];
				
				
			}
			
			xm = xt*kerroin;
			ym = yt*kerroin;
			
			lsxm = -xm;
			lsym = -ym;
			
			if (accelerate)
			{
				setAcceleration(1);
			}
			else
			{
				setAcceleration(0);
			}
			
			//console.log("xx:" +  view_xx + "yy:" + view_yy);
			//console.log("snake.xx:" +  snake.xx + "snake.yy:" + snake.yy);
			//console.log("snake.fx:" +  snake.fx + "snake.fy:" + snake.fy);
			//console.log("fvx:" +  fvx + "fvy:" + fvy);
			//console.log("");
			
			//console.log("foods_c:" + foods_c);
			//console.log("snakes.length:" + snakes.length);
			
			//console.log("D:" + Math.sqrt(xm*xm + ym*ym));
			
			lastscore = Math.floor(150 * (fpsls[snake.sct] + snake.fam / fmlts[snake.sct] - 1) - 50) / 10;
			if (!lastscore)
			{
				lastscore = 1;
			}
			lastrank = rank;
			if (!lastrank)
			{
				lastrank = 500;
			}
		}
		else
		{
			if (!injected_dead)
			{
				injected_dead = true;
				
				if (lastscore>bestscore)
				{
					console.log("Last score: " + lastscore + "(new best)");
					bestscore = lastscore;
					
					BESTSCORE = bestscore;
				}
				else
				{
					console.log("Last score: " + lastscore + " Best: " + bestscore);
				}
				
				if (lastrank<bestrank)
				{
					console.log("Last rank: " + lastrank + "(new best)");
					bestrank = lastrank;
					
					BESTRANK = bestrank;
				}
				else
				{
					console.log("Last rank: " + lastrank + " Best: " + bestrank);
				}
				
				if (testingdna>0)
				{
					TESTSCORE = lastscore/(lastrank+1);

				}
				else
				{
					REALSCORE = (REALSCORE+lastscore/lastrank)/2;
				}
				lastscore = 0;

				for (var key in DNA)
				{		
					if (TESTSCORE > REALSCORE)
					{
						var mul = TESTSCORE/REALSCORE
						REALDNA[key] = (REALDNA[key] + TESTDNA[key]*mul)/(1+mul);
						REALDNA[key] = Math.round(REALDNA[key]*precision)/precision;
					}

					if (testingdna<0)
					{
						TESTDNA[key] = REALDNA[key] + REALDNA[key]*(Math.random() - Math.random())*learnrate;
						TESTDNA[key] = Math.round(TESTDNA[key]*precision)/precision;
					}
				}
				
				savedna();

				testingdna = -testingdna;

				if (testingdna>0)
				{
					DNA = TESTDNA.slice();
				}
				else
				{
					DNA = REALDNA.slice();
				}
				//console.log("DNA = [" + DNA + "];");
				
				setTimeout(connect, 3000);
				//console.log("Reconnecting");
			}
		}
	}
}

var injectbot = function() {
	if (typeof(redraw) != "undefined")
	{
		oldredraw = redraw;

		redraw = function() {
			INJECTED();
			oldredraw();
		}
		console.log("injected")
		window.onmousemove = null;
	}
	else
	{
		setTimeout(injectbot, 1000);
		console.log("retrying")
	}
}
injectbot();