Cheap Matrix Replacement

by dillmoody

HTML

<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Text Animation</title>
</head>
<body>
  <article class="digital-geography">
    <h1 class="entry-title">Layer Extend and Share</h1>
  </article>
</body>
</html>

CSS

body {
  display: flex;
  justify-content: left;
  align-items: center;
  height: 100vh;
  margin: 0 0 0 2rem;
  background-color: #222;
  color: #00ff41;
  font-family: Arial, sans-serif;
}

.digital-geography h1 {
  font-size: 2rem;
  letter-spacing: -0.1em;
  text-transform: uppercase;
}
.digital-geography h1.entry-title::after {
  content: "█";
  width: 0.5em;
  height: 1em;
  color: #00ff41;
  opacity: 1;
  display: inline-block;
  animation: cursor-blink 1.5s steps(10) infinite;
}

.random {
  color: #00ff41;
}

@keyframes cursor-blink {
    0%, 100% {
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
}

JavaScript

matrixrain: {
    if (!(document.getElementsByClassName("entry-title")[0] !== null)) {
        break matrixrain;
    }
    const h1Element = document.getElementsByClassName("entry-title")[0];
    const targetText = h1Element.innerText + ' ';
    const characters = "ｦｲｸｺｿﾁﾄﾉﾌﾔﾖﾙﾚﾛﾝﾊﾐﾋｰｳｼﾅﾓﾆｻﾜﾂｵﾘｱﾎﾃﾏｹﾒｴｶｷﾑﾕﾗｾﾈｽﾀﾇﾍABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()ƀƁƂƃƄƅƆƇƈƉƊƋƌƍƎƏƐƑƒƓƔƕƖƗƘƙƚƛƜƝƞƟƠơƢƣƤƥƦƧƨƩƪƫƬƭƮƯưƱƲƳƴƵƶƷƸƹƺƻƼƽƾƿǀǁǂǃDŽDždžLJLjljNJNjnjǎǐǒǔǖǘǚǜǝǟǡǢǣǤǧǨǩǪǫǬǭǮǯǰDZDzdzǵǶǷǹｦｲｸｺｿﾁﾄﾉﾌﾔﾖﾙﾚﾛﾝﾊﾐﾋｰｳｼﾅﾓﾆｻﾜﾂｵﾘｱﾎﾃﾏｹﾒｴｶｷﾑﾕﾗｾﾈｽﾀﾇ";
    let displayedText = Array.from({
            length: targetText.length
        }, () =>
        characters[Math.floor(Math.random() * characters.length)]
    ); // Generate initial random string
    let currentIndex = 0;

    const updateDisplay = () => {
        // Build the HTML string with spans for each character
        const content = displayedText
            .map((char, index) =>
                index < currentIndex ?
                `${char}` // Correct characters in white
                :
                `<span class="random">${char}</span>` // Random characters in green
            )
            .join("");
        h1Element.innerHTML = content;
    };

    // Display the initial random string
    updateDisplay();

    const animateText = () => {
        // Reveal the correct character at the current index
        if (displayedText[currentIndex] !== targetText[currentIndex]) {
            displayedText[currentIndex] = targetText[currentIndex];
        }

        // Randomize the remaining characters
        for (let i = currentIndex + 1; i < targetText.length; i++) {
            if (displayedText[i] !== targetText[i]) {
                displayedText[i] = characters[Math.floor(Math.random() * characters.length)];
            }
        }

        // Update the displayed text
        updateDisplay();

        // Move to the next character if the current one is correct
        if (displayedText[currentIndex] ===...