what does this script do

(function () {
  // Check if Three.js is already loaded, or load it from the CDN
  if (!window.THREE) {
    const script = document.createElement('script');
    script.src = 'https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js';
    script.onload = initialize;
    document.head.appendChild(script);
  } else {
    initialize();
  }

  function initialize() {
    const SCREEN_WIDTH = window.screen.availWidth;
    const SCREEN_HEIGHT = window.screen.availHeight;
    const WIN_WIDTH = 250;
    const WIN_HEIGHT = 150;
    const POPUP_INTERVAL = 10000;

    const style = document.createElement('style');
    style.innerHTML = `
      body { margin: 0; overflow: hidden; }
      .glitchText { animation: glitch 0.3s infinite alternate; display: inline-block; color: red; }
      .emoji { position: absolute; font-size: 24px; pointer-events: none; }
      #timerPopup { position: fixed; top: 20px; right: 20px; background: white; border: 2px solid black; padding: 10px; z-index: 1000; }
      .shaky { animation: shake 0.5s infinite; }
      @keyframes glitch { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(3px, 0); } }
      @keyframes shake { 0% { transform: translate(1px, 1px) rotate(0deg); } 50% { transform: translate(-1px, -1px) rotate(-1deg); } 100% { transform: translate(1px, 1px) rotate(0deg); } }
      .shape { position: absolute; animation: rotate 4s linear infinite; }
      @keyframes rotate { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
      .heartbeat { animation: pulse 1s infinite; }
      @keyframes pulse { 0% { transform: scale(1); } 50% { transform: scale(1.1); } 100% { transform: scale(1); } }
      .fadeInAndOut { animation: fade 3s infinite; }
      @keyframes fade { 0%, 100% { opacity: 0; } 50% { opacity: 1; } }
      .floatUpDown { animation: float 3s infinite; }
      @keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
      .threeDBox { position: absolute; width: 100px; height: 100px; background: linear-gradient(to right, #ff8c00, #e08); transform-style: preserve-3d; animation: threeDSpin 4s infinite linear; }
      @keyframes threeDSpin { from { transform: rotateY(0deg) rotateX(0deg); } to { transform: rotateY(360deg) rotateX(360deg); } }
      .typingEffect { font-family: monospace; border-right: 3px solid; animation: blink 1s infinite step-end, typing 4s steps(20, end) forwards; }
      @keyframes blink { from, to { border-color: transparent; } 50% { border-color: black; } }
      @keyframes typing { 0% { width: 0; } 100% { width: 100%; } }
    `;
    document.head.appendChild(style);

    function create3DGlitchingCubes() {
      const scene = new THREE.Scene();
      const camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
      const renderer = new THREE.WebGLRenderer({ alpha: true });

      renderer.setSize(window.innerWidth, window.innerHeight);
      document.body.appendChild(renderer.domElement);
      renderer.autoClear = false;

      const cubes = [];
      const numCubes = 100;
      const geometry = new THREE.BoxGeometry();

      for (let i = 0; i < numCubes; i++) {
        const material = new THREE.MeshBasicMaterial({
          color: Math.random() * 0xffffff,
          transparent: true,
          opacity: 0.5,
          wireframe: Math.random() < 0.5,
        });
        const cube = new THREE.Mesh(geometry, material);
        cube.position.set((Math.random() - 0.5) * 20, (Math.random() - 0.5) * 20, (Math.random() - 0.5) * 20);
        cubes.push(cube);
        scene.add(cube);
      }

      camera.position.z = 30;

      function animate() {
        requestAnimationFrame(animate);
        renderer.clear();
        renderer.setClearColor(0x000000, 0.05);

        cubes.forEach((cube) => {
          cube.rotation.x += (Math.random() - 0.5) * 0.1;
          cube.rotation.y += (Math.random() - 0.5) * 0.1;
          cube.position.x += (Math.random() - 0.5) * 0.05;
          cube.position.y += (Math.random() - 0.5) * 0.05;
          cube.position.z += (Math.random() - 0.5) * 0.05;

          if (Math.abs(cube.position.x) > 20) cube.position.x = (Math.random() - 0.5) * 20;
          if (Math.abs(cube.position.y) > 20) cube.position.y = (Math.random() - 0.5) * 20;
          if (Math.abs(cube.position.z) > 20) cube.position.z = (Math.random() - 0.5) * 20;
        });

        renderer.render(scene, camera);
      }

      window.addEventListener('resize', () => {
        camera.aspect = window.innerWidth / window.innerHeight;
        camera.updateProjectionMatrix();
        renderer.setSize(window.innerWidth, window.innerHeight);
      });

      animate();
    }

    // Assuming other functions like transformTextToBinaryAndCode, createBouncingPopups, etc. are defined here...

    // Other functions like startTimerPopup, animateUrlWithEmojis, etc.

    create3DGlitchingCubes(); // Start creating the 3D glitching cubes
    
    // Calling various functions and intervals to create the chaos
    transformTextToBinaryAndCode(document.body);
    setInterval(addRandomEmojis, 4000);
    setInterval(createBouncingPopups, POPUP_INTERVAL);
    startTimerPopup();
    spamURLWithEmojis();
    setInterval(screenShakeEffect, 7000);
    flashBackgroundColors();
    animateUrlWithEmojis();
    invertPageColors();
    spinElements();
    typewriterEffect();
    changeTextColorRandomly();
    addAnimatedShapes();
    animateBackgroundGradient();
    setInterval(sprinkleStars, 8000);
    setInterval(rainEffect, 10000);
    addFloatingClock();
    setInterval(generateRandomCodeSnippet, 15000);
    animateTextBounce();
    setInterval(showRandomMessages, 6000);
    setInterval(typewriterEffect, 11000);
    setInterval(floatingHearts, 9000);
    setInterval(flickerEffect, 8000);
    setInterval(mirrorElements, 20000);
    setInterval(ghostTexts, 11000);
    setInterval(heartbeatEffect, 15000);
    setInterval(slideInAlerts, 13000);
    setInterval(drippingBloodEffect, 18000);
    setInterval(hauntedScroll, 14000);
    setInterval(shadowFigures, 10000);
    setInterval(animateFadingText, 16000);
    setInterval(floatingMists, 9000);
    setInterval(spookyWhispers, 20000);
    setTimeout(jumpScare, 40000);
    setInterval(flashWarning, 15000);
    setTimeout(creepyBackgroundSound, 1000);
    setInterval(wanderingEyes, 12000);
    setInterval(suddenSilence, 35000);
    setInterval(tearfulGhost, 18000);
    setInterval(eerieTyping, 10500);
    setInterval(rotateScreen, 17000);
    setInterval(unsettlingImageUpsideDown, 15000);
    setInterval(drawShadowCircles, 13000);
    setInterval(shadowyTransparency, 19000);
    setTimeout(induceParanoia, 24000);
    setInterval(hypnoticSwirl, 25000);
    setTimeout(flickerBodyBackground, 30000);
    setInterval(shimmerEffect, 21000);
    setInterval(showFloating3DBox, 17000);
    setInterval(expandContractAnimation, 14000);
    setInterval(randomSizeChange, 11000);
    setInterval(rainOfFire, 8000);
    setInterval(randomElementSpin, 10000);
    setInterval(continuousScreenShake, 14000);
    setTimeout(hoverRippleEffect, 9000);
    setInterval(createCreepyEyes, 10000);
    setInterval(textZoomEffect, 6000);
    setInterval(createMysteriousFog, 9000);
    setInterval(generateGhostlyFigures, 17000);
    setInterval(create3DSpiral, 9000);
    setInterval(createRotatingSquares, 8000);
    setInterval(activateGlitchEffect, 15000);
    setInterval(floatingTextShadow, 20000);
    setInterval(fallingLeaves, 11000);
    setInterval(atmosphericMist, 10000);
    setInterval(randomGlowEffect, 12000);
    setInterval(createTreeOfCreepyFaces, 14000);
    setInterval(suddenScreenFlash, 18000);
    setTimeout(mimicMouseMove, 19000);
    setInterval(scatteringStars, 9000);
    setTimeout(creepyWhisperSound, 22000);
    setInterval(randomFontChange, 13000);
    setInterval(etherealBubbles, 11000);
    setInterval(interactiveSpacing, 15000);
  }
})();