Nitro Type auto typer

Lets you type anything and still types correctly on Nitro Type. Extended version with extra features.

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         Nitro Type auto typer
// @namespace    http://tampermonkey.net/
// @version      1.0
// @description  Lets you type anything and still types correctly on Nitro Type. Extended version with extra features.
// @author       King's group
// @license      MIT
// @match        https://www.nitrotype.com/race*
// @grant        none
// ==/UserScript==

(function(){
  const VERSION = "2025-09-18-HUMAN-FOREVER";

  try { if(window.NT_autotyper && window.NT_autotyper.stop) window.NT_autotyper.stop(); } catch(e){}

  let config = {
    wpmDayMin: 40, wpmDayMax: 50,
    wpmNightMin: 30, wpmNightMax: 40,
    accuracyPercent: 97,
    humanize: true,
    autoRaceLoop: true,
    maxElementScan: 1500,
    recoveryInterval: 500,
    pausePerRace: 5 + Math.floor(Math.random()*3), // 5–7 pauses per race
    pauseTimesDay: [200,700],
    pauseTimesNight: [400,1200],
    wpmVariation: 0.05,
    mouseSimulate: true,
    mouseMoveChance: 0.02
  };

  let t = null;
  let state = { running:true, timerId:null, recoveryId:null, pausesLeft:config.pausePerRace };

  function msPerChar(wpm){ return Math.max(5, Math.round(12000/wpm)); }
  function jitter(ms){ return Math.max(8, Math.round(ms*(0.8+Math.random()*0.4))); }
  function randomRange(min,max){ return Math.floor(Math.random()*(max-min+1)+min); }

  function findTypingNode(){
    try{
      let container = document.querySelector("div.dash-copyContainer");
      if(container){
        for(let v of Object.values(container)){
          if(v && v.children && v.children._owner && v.children._owner.stateNode) return v.children._owner.stateNode;
        }
      }
      let scanned=0;
      for(let el of document.querySelectorAll('body *')){
        scanned++; if(scanned>config.maxElementScan) break;
        for(let v of Object.values(el)){
          if(!v) continue;
          if(v.children && v.children._owner && v.children._owner.stateNode) return v.children._owner.stateNode;
          if(v._owner && v._owner.stateNode) return v._owner.stateNode;
          if(v._reactInternalFiber && v._reactInternalFiber.stateNode) return v._reactInternalFiber.stateNode;
          if(v.stateNode && v.props && v.props.lessonContent) return v.stateNode;
          if(v.props && v.props.lessonContent && typeof v.handleKeyPress==='function') return v;
        }
      }
    }catch(e){}
    return null;
  }

  function safeKeyPress(node,char){
    if(!node) return;
    try{ node.handleKeyPress("character", new KeyboardEvent("keypress",{key:char})); return; }catch(e){}
    try{ node.handleKeyPress("character",{key:char}); return; }catch(e){}
    try{ (document.activeElement||document.body).dispatchEvent(new KeyboardEvent("keydown",{key:char,bubbles:true,cancelable:true})); return; }catch(e){}
  }

  function clickPlayAgain(){
    try{
      let btn = document.querySelector("button.playAgainBtn, button.PlayAgainBtn, button.play-again, .play-again-button");
      if(btn){ btn.click(); return true; }
    }catch(e){}
    return false;
  }

  function getLessonContent(node){
    if(!node||!node.props) return [];
    if(Array.isArray(node.props.lessonContent)) return node.props.lessonContent;
    if(typeof node.props.lessonContent==="string") return node.props.lessonContent.split('');
    return [];
  }

  function getMode(){ let h = new Date().getHours(); return (h>=8 && h<22)?"day":"night"; }

  function simulateMouseMovement(){
    if(!config.mouseSimulate) return;
    let elements = Array.from(document.querySelectorAll('button, .play-again-button, input, .dash-copyContainer'));
    if(elements.length===0) return;
    let el = elements[randomRange(0,elements.length-1)];
    let rect = el.getBoundingClientRect();
    let x = rect.left + Math.random()*rect.width;
    let y = rect.top + Math.random()*rect.height;
    document.dispatchEvent(new MouseEvent("mousemove", {clientX:x, clientY:y,bubbles:true}));
  }

  function typedStep(){
    if(!state.running) return;

    if(!t || !t.props || !t.handleKeyPress){
      t = findTypingNode();
      if(!t){ state.timerId = setTimeout(typedStep, config.recoveryInterval); return; }
    }

    let mode = getMode();
    let idx = typeof t.typedIndex==='number'?t.typedIndex:(t.props && typeof t.props.typedIndex==='number'?t.props.typedIndex:0);
    let content = getLessonContent(t);

    if(!content || content.length===0 || idx >= content.length){
      if(config.autoRaceLoop){
        setTimeout(()=>{
          safeKeyPress(t,"\n");
          clickPlayAgain();
          t = findTypingNode();
          state.pausesLeft = 5 + Math.floor(Math.random()*3); // reset pauses for next race
          state.timerId = setTimeout(typedStep, jitter(msPerChar(randomRange(mode==="night"?config.wpmNightMin:config.wpmDayMin,mode==="night"?config.wpmNightMax:config.wpmDayMax))));
        }, randomRange(500,2000));
      }
      return;
    }

    // Human-like pauses
    if(state.pausesLeft > 0 && Math.random() < 0.02){
      let pauseRange = mode==="night"?config.pauseTimesNight:config.pauseTimesDay;
      let pause = randomRange(pauseRange[0],pauseRange[1]);
      state.pausesLeft--;
      state.timerId = setTimeout(typedStep, pause);
      return;
    }

    if(config.mouseSimulate && Math.random() < config.mouseMoveChance){
      simulateMouseMovement();
    }

    let correctChar = content[idx];
    let isCorrect = Math.random()*100 < config.accuracyPercent;
    let charWpm = mode==="night"?randomRange(config.wpmNightMin,config.wpmNightMax):randomRange(config.wpmDayMin,config.wpmDayMax);
    let charDelay = msPerChar(charWpm)*(1 + (Math.random()*2-1)*config.wpmVariation);

    if(!isCorrect){
      safeKeyPress(t,"$");
      setTimeout(()=>{ safeKeyPress(t,"\b"); setTimeout(()=>{ safeKeyPress(t,correctChar); }, jitter(50)); }, jitter(50));
    } else { safeKeyPress(t,correctChar); }

    state.timerId = setTimeout(typedStep, jitter(charDelay));
  }

  // Recovery loop
  state.recoveryId = setInterval(()=>{
    if(!state.running) return;
    if(!t || !t.props || !t.handleKeyPress) t = findTypingNode();
  }, config.recoveryInterval);

  // Auto restart after "Play Again" / Enter
  document.addEventListener("click", (e)=>{
    if(e.target && (e.target.matches(".play-again-button, button.playAgainBtn, button.play-again"))){
      setTimeout(()=>{ t = findTypingNode(); typedStep(); }, 800);
    }
  });
  document.addEventListener("keydown",(e)=>{
    if(e.key==="Enter"){
      setTimeout(()=>{ t = findTypingNode(); typedStep(); },800);
    }
  });

  // Kickstart
  let initialWpm = getMode()==="night"?randomRange(config.wpmNightMin,config.wpmNightMax):randomRange(config.wpmDayMin,config.wpmDayMax);
  state.timerId = setTimeout(typedStep, jitter(msPerChar(initialWpm)));

  window.NT_autotyper = {
    stop:function(){ state.running=false; clearTimeout(state.timerId); clearInterval(state.recoveryId); console.log("NT_autotyper stopped"); },
    start:function(){
      if(!state.running){
        state.running=true;
        state.timerId = setTimeout(typedStep,jitter(msPerChar(initialWpm)));
        console.log("NT_autotyper started");
      }
    }
  };

  console.log("NT_autotyper HUMAN-FOREVER injected — stays active, auto restarts each race, 5–7 pauses, human rhythm.");
})();