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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>Morse Code Game</title>
<script src="https://cwjs.mastercw.com/cw.min.js"></script>
<style>
body {
font-family: Arial, sans-serif;
max-width: 600px;
margin: 0 auto;
padding: 20px;
text-align: center;
}
.game-container {
background-color: #f0f0f0;
border-radius: 10px;
padding: 20px;
margin-bottom: 20px;
}
.options {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 10px;
margin-top: 20px;
}
button {
padding: 10px;
font-size: 16px;
cursor: pointer;
}
.play-button {
background-color: #4CAF50;
color: white;
border: none;
border-radius: 5px;
padding: 10px 20px;
margin-bottom: 20px;
}
.start-button {
background-color: #FF9800;
color: white;
border: none;
border-radius: 5px;
padding: 15px 30px;
font-size: 18px;
margin: 20px 0;
}
.option-button {
background-color: #2196F3;
color: white;
border: none;
border-radius: 5px;
}
.feedback {
height: 20px;
margin-top: 20px;
font-weight: bold;
}
.correct {
color: green;
}
.incorrect {
color: red;
}
#gameArea {
display: none;
}
#startScreen {
margin: 50px 0;
}
</style>
</head>
<body>
<h1>Morse Code Game</h1>
<div id="startScreen">
<p>Click the button below to start the game and initialize audio</p>
<button id="startButton" class="start-button">Start Game</button>
</div>
<div id="gameArea">
<div class="game-container">
<div>Score: <span id="score">0</span> / <span id="total">0</span></div>
<button id="playButton" class="play-button">Play Morse Code</button>
<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>
<label for="wpmSelect">Speed:</label>
<select id="wpmSelect">
<option value="10">10 WPM</option>
<option value="15" selected>15 WPM</option>
<option value="20">20 WPM</option>
</select>
</div>
</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';
// 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 playButton = document.getElementById('playButton');
const feedbackElement = document.getElementById('feedback');
const scoreElement = document.getElementById('score');
const totalElement = document.getElementById('total');
const wpmSelect = document.getElementById('wpmSelect');
// Add event listeners
playButton.addEventListener('click', playMorse);
optionButtons.forEach(button => {
button.addEventListener('click', function () {
checkAnswer(button.textContent);
});
});
// Start the game
newRound();
// Generate a new round
function newRound() {
// Clear feedback
feedbackElement.textContent = '';
feedbackElement.className = 'feedback';
// Enable all option buttons
optionButtons.forEach(button => {
button.disabled = false;
});
// 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++) {
optionButtons[i].textContent = options[i];
}
}
// 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(selectedChar) {
// Disable all buttons
optionButtons.forEach(button => {
button.disabled = true;
});
totalPlayed++;
totalElement.textContent = totalPlayed;
if (selectedChar === currentChar) {
// Correct answer
score++;
scoreElement.textContent = score;
feedbackElement.textContent = 'Correct!';
feedbackElement.className = 'feedback correct';
} else {
// Wrong answer
feedbackElement.textContent = 'Wrong! The correct answer was ' + currentChar;
feedbackElement.className = 'feedback incorrect';
}
// 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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