// ==UserScript==// @name         Agar.io Arrow Keys// @namespace    https://greasyfork.org/en/users/46159-tom-burris2// @version      0.4// @description  Use arrow keys to move your cell!// @author       Tom Burris// @icon         http://bit.ly/2oT4wRk// @match        *agar.io/*// @grant        none// @compatible   chrome// @noframes// ==/UserScript=="use strict";let down = 0;const change = ({keyCode, type}) => {let i = keyCode - 37;let d = type === "keydown";if (i >= 0 && i < 4) {down = down & ~(1 << i) | d << i;let xy = [innerWidth / 2, innerHeight / 2];const min = Math.min(innerWidth, innerHeight);for (let n = 0; n < 4; ++n) {xy[n & 1] += (n < 2 ? -1 : 1) * min * (down >> n & 1);}canvas.dispatchEvent(new MouseEvent("mousemove", {clientX: xy[0],clientY: xy[1]}));}};addEventListener("keydown", change);addEventListener("keyup", change);