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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Learn Morse Code the Fun Way - Morse Hero</title>
<meta name="description"
content="Morse Hero is a fun, interactive game to learn Morse code. Practice your skills with audio playback and visual hints to master Morse code quickly.">
<meta name="keywords" content="morse code, morse code game, learn morse code, morse code practice, morse hero">
<meta name="robots" content="index, follow">
<script src="https://cdn.usefathom.com/script.js" data-site="NEBPAKSA" defer></script>
<script src="https://cdn.jsdelivr.net/npm/cw@latest/dist/cw.min.js"></script>
<meta name="canonical" href="https://morsehero.com">
<link rel="apple-touch-icon" sizes="180x180" href="/ico/apple-touch-icon.png">
<link rel="icon" type="image/png" sizes="32x32" href="/ico/icon-192.png">
<link rel="icon" type="image/png" sizes="16x16" href="/ico/icon-192.png">
<link rel="manifest" href="/site.webmanifest">
<meta name="theme-color" content="#2c3e50">
<!-- Google Fonts -->
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link
href="https://fonts.googleapis.com/css2?family=Fredoka:wght@400;600&family=Poppins:wght@400;600;700&display=swap"
rel="stylesheet">
<!-- Main Stylesheet -->
<link rel="stylesheet" href="styles.css">
</head>
<body>
<div class="container">
<h1><a href="/" class="title-link">Morse Hero</a></h1>
<div id="startScreen">
<p>Learn Morse code the fun way!</p>
<button id="startButton" class="start-button">Start</button>
<div class="chart-link">
<a href="/chart/">View Morse Code Chart</a>
</div>
</div>
<div id="gameArea">
<div class="score-container">
<div class="score-widget">
<div class="score-info">
<div class="score-label">Score:</div>
<div class="score-value">
<span id="score">0</span> / <span id="total">0</span>
</div>
</div>
<div class="score-tracker" id="scoreTracker"></div>
</div>
</div>
<div class="game-container">
<div class="options">
<button class="option-button" id="option1"></button>
<button class="option-button" id="option2"></button>
<button class="option-button" id="option3"></button>
<button class="option-button" id="option4"></button>
</div>
<div class="feedback" id="feedback"></div>
</div>
<div class="settings">
<label for="wpmSelect">Speed:</label>
<select id="wpmSelect">
<option value="10">10 WPM</option>
<option value="15">15 WPM</option>
<option value="20" selected>20 WPM</option>
<option value="25">25 WPM</option>
<option value="30">30 WPM</option>
</select>
<div class="hint-setting">
<input type="checkbox" id="hintMode" name="hintMode">
<label for="hintMode">Show Hints</label>
</div>
</div>
</div>
<footer class="footer">
<p>Need help? View the <a href="/chart/">Morse Code Chart</a>. </p>
<p>Created with <a href="https://www.mastercw.com/cw.js/">CW.js</a>. For a complete and professional
Morse Code training solution visit <a href="https://www.mastercw.com">Master CW</a>.</p>
</footer>
</div>
<script>
// Game variables
let actx = null;
// Define available characters
const letters = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ';
const numbers = '0123456789';
const specialChars = '.,?/=';
const allChars = letters + numbers + specialChars;
// Game state
let currentChar = '';
let score = 0;
let totalPlayed = 0;
// DOM elements
const startButton = document.getElementById('startButton');
const startScreen = document.getElementById('startScreen');
const gameArea = document.getElementById('gameArea');
// Start button event listener
startButton.addEventListener('click', function () {
// Initialize audio context only when the start button is clicked
try {
actx = cw.initAudioContext({ tone: 600 });
// Hide start screen and show game area
startScreen.style.display = 'none';
gameArea.style.display = 'block';
document.body.classList.add('game-active');
// Initialize the game
init();
} catch (error) {
console.error('Failed to initialize audio context:', error);
alert('Failed to initialize audio. Please try again.');
}
});
// Initialize the game
function init() {
// DOM elements for the game
const optionButtons = [
document.getElementById('option1'),
document.getElementById('option2'),
document.getElementById('option3'),
document.getElementById('option4')
];
const feedbackElement = document.getElementById('feedback');
const scoreElement = document.getElementById('score');
const totalElement = document.getElementById('total');
const wpmSelect = document.getElementById('wpmSelect');
const hintModeCheckbox = document.getElementById('hintMode');
optionButtons.forEach((button, index) => {
button.addEventListener('click', function () {
checkAnswer(button);
});
// Remove number labels - we'll add character labels dynamically in newRound
const existingLabel = button.querySelector('.key-label');
if (existingLabel) {
button.removeChild(existingLabel);
}
});
// Add keyboard listener for character keys
document.addEventListener('keydown', (event) => {
// Only process if we're in the game area (not on start screen)
if (gameArea.style.display === 'block') {
const key = event.key.toUpperCase();
// Find if any button has this character
for (let i = 0; i < optionButtons.length; i++) {
const charSpan = optionButtons[i].querySelector('.char-display');
if (charSpan && charSpan.textContent === key && !optionButtons[i].disabled) {
// Simulate button press with visual feedback
optionButtons[i].classList.add('key-pressed');
setTimeout(() => {
optionButtons[i].classList.remove('key-pressed');
checkAnswer(optionButtons[i]);
}, 100);
break;
}
}
}
});
hintModeCheckbox.addEventListener('change', updateButtonsWithHints);
// Start the game
newRound();
// Generate a new round
function newRound() {
// Clear feedback
feedbackElement.textContent = '';
// Reset all buttons to default state
optionButtons.forEach(button => {
button.disabled = false;
button.classList.remove('correct', 'incorrect');
// Clear button content
button.innerHTML = '';
});
// Generate a random character
const randomIndex = Math.floor(Math.random() * allChars.length);
currentChar = allChars[randomIndex];
// Generate 3 wrong options
let options = [currentChar];
while (options.length < 4) {
const randomIndex = Math.floor(Math.random() * allChars.length);
const randomChar = allChars[randomIndex];
if (!options.includes(randomChar)) {
options.push(randomChar);
}
}
// Shuffle options
options = shuffleArray(options);
// Set button text
for (let i = 0; i < 4; i++) {
// Create a span for the character
const charSpan = document.createElement('span');
charSpan.className = 'char-display';
charSpan.textContent = options[i];
optionButtons[i].appendChild(charSpan);
}
// Update buttons with hints if hint mode is enabled
updateButtonsWithHints();
// immediately play sound
playMorse();
}
// Update buttons with Morse code hints if hint mode is enabled
function updateButtonsWithHints() {
if (hintModeCheckbox.checked) {
optionButtons.forEach(button => {
// Remove any existing hint spans
const existingHint = button.querySelector('.morse-hint');
if (existingHint) {
button.removeChild(existingHint);
}
// Get the character from the button's char-display span
const charSpan = button.querySelector('.char-display');
if (!charSpan) return;
const char = charSpan.textContent;
// Get the Morse code for the character
const morseCode = cw.codes[char];
if (morseCode) {
// Create a span for the hint
const hintSpan = document.createElement('span');
hintSpan.className = 'morse-hint';
hintSpan.textContent = morseCode.replace(/\./g, '·').replace(/\-/g, '−');
// Add the hint to the button
button.appendChild(hintSpan);
}
});
} else {
// Remove hints if hint mode is disabled
optionButtons.forEach(button => {
const existingHint = button.querySelector('.morse-hint');
if (existingHint) {
button.removeChild(existingHint);
}
});
}
}
// Play the morse code
function playMorse() {
const wpm = parseInt(wpmSelect.value);
// Play the character with the existing audio context
cw.play(currentChar, {
actx: actx,
wpm: wpm
});
}
// Check the user's answer
function checkAnswer(selectedButton) {
// Disable all buttons
optionButtons.forEach(button => {
button.disabled = true;
});
totalPlayed++;
totalElement.textContent = totalPlayed;
// Get the character from the button's char-display span
const charSpan = selectedButton.querySelector('.char-display');
const selectedChar = charSpan ? charSpan.textContent : '';
// Create a new score dot
const scoreDot = document.createElement('div');
scoreDot.className = 'score-dot';
if (selectedChar === currentChar) {
// Correct answer
score++;
scoreElement.textContent = score;
selectedButton.classList.add('correct');
scoreDot.classList.add('correct');
} else {
// Wrong answer - mark selected button as incorrect
selectedButton.classList.add('incorrect');
scoreDot.classList.add('incorrect');
// Find and highlight the correct button
optionButtons.forEach(button => {
const buttonCharSpan = button.querySelector('.char-display');
if (buttonCharSpan && buttonCharSpan.textContent === currentChar) {
button.classList.add('correct');
}
});
}
// Add the score dot to the tracker
const scoreTracker = document.getElementById('scoreTracker');
scoreTracker.appendChild(scoreDot);
// Limit the number of dots shown (keep last 20)
if (scoreTracker.children.length > 20) {
scoreTracker.removeChild(scoreTracker.children[0]);
}
// Start a new round after a delay
setTimeout(newRound, 1000);
}
}
// Utility function to shuffle an array
function shuffleArray(array) {
for (let i = array.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[array[i], array[j]] = [array[j], array[i]];
}
return array;
}
</script>
</body>
</html>
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