4chan Fap Gauntlet

Automates fap gauntlet threads for those that can't count.

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 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        4chan Fap Gauntlet
// @version     1
// @namespace   ecchianon
// @description Automates fap gauntlet threads for those that can't count.
// @license     WTFPL
// @match       *://boards.4chan.org/*
// @match       *://boards.4channel.org/*
// @grant       none
// ==/UserScript==

// This userscript depends upon the gallery view included in 4chanX.
// Click on the 4chanX settings and enable the "Gallery" setting, then go to
// a "fap gauntlet" thread that follows the <number>, <speed>, <instructions>
// format and open the image, then press the RED button in the top right.
// More information exists bottom right of the image.

// You can modify these values:

const speedMapping = {
  "very slow": 40,
  "slow": 80,
  "medium": 120,
  "normal": 120,
  "fast": 160,
  "very fast": 200,
};

var clickSound = new Audio ("data:audio/mp3;base64,"+
"SUQzBAAAAAAAIlRTU0UAAAAOAAADTGF2ZjYxLjcuMTAwAAAAAAAAAAAAAAD/+zgAAAAAAAAAAAAA"+
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"mZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZmZn/////////////////////////////////"+
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"o+d/5VyAooi3/+VDUsHRQCtb//6xkGnxdZJiqkxBTUUzLjEwMKqqqqqqqqqqqqqqqqqqqqqqqqqq"+
"qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqo=");

//////////////////////////////////////////////////////////////
//                                                          //
// You are not supposed to change anything below this line. //
//                                                          //
//////////////////////////////////////////////////////////////

var active_count = 0;
var total_count = 0;
var timer = undefined;

var gauntlet_started = false;

var label_counter = null;
var label_instructions = null;
var fap_button = null;

let galImageNode = null;

function get_speed(phrase) {
    return speedMapping[phrase] || speedMapping["normal"];
}

function bpm_to_ms(bpm) {
  return 60_000/bpm;
}

function beat(timer) {
  if(!gauntlet_started) {
    return;
  }
  
  clickSound.play();
  
  updateLabel();
  
  active_count--;
  if (active_count < 0) {
    clearInterval(timer);
    document.querySelector('.gal-next').click();
  }
}

function show() {
  label_counter.style.display = 'block';
  label_instructions.style.display = 'block';
  fap_button.style.display = '';
}

/*
function hide() {
  label_counter.style.display = 'none';
  label_instructions.style.display = 'none';
  fap_button.style.display = 'none';
}
*/

function setup() {
  // "e.<post number>"
  let selected_post = document
    .querySelector(".gal-image")
    .querySelector("img")
    .getAttribute("data-post");

  let post_number = selected_post.slice(2);

  let post_text = document
    .querySelector("#m"+post_number)
    .innerHTML;

  let fap_regex = "([0-9]+)[,|.] ([A-Z|a-z| ]+)[,|.] ([A-Z|a-z| ]+)";

  var match = undefined;

  let lines = post_text.split(/<br\s*\/?>/);
  for (let i = 0;i < lines.length;i++) {
    match = lines[i].match(fap_regex);
    if(match) {
      break;
    }
  }

  if(undefined === match) return;

  let count = match[1]*1; // string to integer conversion I guess
  let speed = match[2];
  let instructions = match[3];
  
  let bpm = get_speed(speed);
  
  show();
  
  label_instructions.innerHTML = speed+" / "+instructions;

  total_count = count;
  active_count = count;

  updateLabel();
  
  clearInterval(timer);
  timer = setInterval(function() {beat(timer)}, bpm_to_ms(bpm));
}

function updateLabel() {
  label_counter.innerHTML = 'Beat count: '+
                           '<span class="count">'+active_count+'</span> / <span class="total">'+total_count+'</span>';
}

function addButton() {
	let l = document.querySelector(".gal-buttons");
	l.insertAdjacentHTML('afterbegin', "<a id=\"fap-start\" class=\"gal-start\" style='display:none;color:red;' title=\"Start gauntlet\"><i></i></a>");
 
  fap_button = document.getElementById('fap-start');
  
  fap_button.addEventListener('click', function(event) {
		event.preventDefault();  
		gauntlet_started = !gauntlet_started;
  });
}

function ifBodyChange() {
  if(!document.body.contains(galImageNode)) {
    gauntlet_started = false;
    clearInterval(timer);
  }
  
  if (null !== galImageNode && document.body.contains(galImageNode)) {
   return; 
  }
  
  galImageNode = document.querySelector('.gal-image');
  if (!galImageNode) {
    return;
  }
  
  let l = document.querySelector(".gal-labels");
  
  l.insertAdjacentHTML('afterbegin', "<span style='display:none;' class='gal-count weird'></span>");
  label_counter = document.querySelector(".weird");
  updateLabel();
  
  l.insertAdjacentHTML('afterbegin', "<span style='display:none;' class='gal-count instructions'></span>");
  label_instructions = document.querySelector(".instructions");
  
  addButton();
    
  setup();
  
  const observer = new MutationObserver((mutations) => {
    mutations.forEach((mutation) => {
      setup();
    });
  });

  observer.observe(galImageNode, {
    childList: true,
    subtree: true,
    attributes: true
  });
}

function init() {
  const targetNode = document.querySelector('body');
  
  const observer = new MutationObserver((mutations) => {
    mutations.forEach((mutation) => {
      ifBodyChange();
    });
  });

  observer.observe(targetNode, {
    childList: true,
    subtree: true,
    attributes: true
  });
}

init();