Allow keyboard control in agar.io

keyboard.js

var oldOnKeyDown = window.onkeydown
var canvas = document.getElementById('canvas');
var oldMouseMove = canvas.onmousemove
canvas.onmousemove = null;
var pressedKeys = {}

window.onkeydown = function (f) {
    pressedKeys[f.keyCode] = 1;
    oldOnKeyDown(f);
    updateKey();
};

window.onkeyup = function (f) {
    pressedKeys[f.keyCode] = 0;
    updateKey();
};

function updateKey() {
    var maxX = window.innerWidth;
    var maxY = window.innerHeight;

    var dx = 0;
    var dy = 0;
    if (pressedKeys[37]) {
        dx = -1;
    }
    if (pressedKeys[38]) {
        dy = -1;
    }
    if (pressedKeys[39]) {
        dx = 1;
    }
    if (pressedKeys[40]) {
        dy = 1;
    }

    var x, y;
    if (dx == -1) {
        x = 0; 
    } else if (dx == 1) {
        x = maxX;
    } else if (dx === 0) {
        x = maxX / 2;
    }
    if (dy == -1) {
        y = 0; 
    } else if (dy == 1) {
        y = maxY;
    } else if (dy === 0) {
        y = maxY / 2;
    }

    oldMouseMove({clientX: x, clientY: y});
}

How do I use this?
Edit: nvm I found it

How do I use this? XD

@BogdanGlisici It's mean to pasted on the console. But you really, really should not do that unless you fully understand the code you're pasting. It's the javascript equivalent of letting someone in your house (or website account, in this case).

Ok, thanks for the clarification

…

On Sat, 19 Feb 2022, 00:17 BoppreH, ***@***.***> wrote: ***@***.**** commented on this gist. ------------------------------ @BogdanGlisici <https://github.com/BogdanGlisici> It's mean to pasted on the console. But you really, really should not do that unless you fully understand the code you're pasting. It's the javascript equivalent of letting someone in your house (or website account, in this case). — Reply to this email directly, view it on GitHub <https://gist.github.com/6273606f3fdc5fe07c47#gistcomment-4070754>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AVM5WKVIC3LXCLVGZZQLZ7LU33AOPANCNFSM5OYV57TA> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you were mentioned.Message ID: ***@***.***>