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<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Piano Playing Game</title>
<style>
body {
font-family: sans-serif;
text-align: center;
background: #f4f4f4;
}
h1 {
margin-top: 20px;
}
.piano {
display: flex;
flex-direction: column;
align-items: center;
margin-top: 20px;
}
.row {
display: flex;
margin-bottom: 10px;
}
.key {
width: 40px;
height: 150px;
margin: 2px;
background: #fff;
border: 1px solid #000;
display: flex;
justify-content: center;
align-items: flex-end;
font-size: 16px;
cursor: pointer;
user-select: none;
transition: background 0.1s ease;
}
.key.active {
background: #e0e0e0;
}
</style>
</head>
<body>
<h1>Piano Playing Game</h1>
<p>Press the corresponding keys on your keyboard to play notes!</p>
<div class="piano">
<div class="row" id="row1">
<!-- Top row keys will be added here -->
</div>
<div class="row" id="row2">
<!-- Middle row keys will be added here -->
</div>
<div class="row" id="row3">
<!-- Bottom row keys will be added here -->
</div>
</div>
<script>
const mappingRow1 = {
'q': 261.63,
'w': 293.66,
'e': 329.63,
'r': 349.23,
't': 392.00,
'y': 440.00,
'u': 493.88,
'i': 523.25,
'o': 587.33,
'p': 659.25
};
const mappingRow2 = {
'a': 698.46,
's': 783.99,
'd': 880.00,
'f': 987.77,
'g': 1046.50,
'h': 1174.66,
'j': 1318.51,
'k': 1396.91,
'l': 1567.98,
';': 1760.00
};
const mappingRow3 = {
'z': 987.77,
'x': 1046.50,
'c': 1174.66,
'v': 1318.51,
'b': 1396.91,
'n': 1567.98,
'm': 1760.00,
',': 1975.53,
'.': 2093.00,
'/': 2349.32
};
const keyMapping = {};
for (const [key, freq] of Object.entries(mappingRow1)) {
keyMapping[key] = { freq: freq, row: 'row1' };
}
for (const [key, freq] of Object.entries(mappingRow2)) {
keyMapping[key] = { freq: freq, row: 'row2' };
}
for (const [key, freq] of Object.entries(mappingRow3)) {
keyMapping[key] = { freq: freq, row: 'row3' };
}
function createKeys(mapping, rowId) {
const row = document.getElementById(rowId);
for (const key of Object.keys(mapping)) {
const keyDiv = document.createElement('div');
keyDiv.className = 'key';
keyDiv.id = 'key-' + key;
keyDiv.innerText = key.toUpperCase();
row.appendChild(keyDiv);
}
}
createKeys(mappingRow1, 'row1');
createKeys(mappingRow2, 'row2');
createKeys(mappingRow3, 'row3');
const AudioContext = window.AudioContext || window.webkitAudioContext;
const audioCtx = new AudioContext();
function playTone(freq) {
const oscillator = audioCtx.createOscillator();
const gainNode = audioCtx.createGain();
oscillator.connect(gainNode);
gainNode.connect(audioCtx.destination);
oscillator.type = 'sine';
oscillator.frequency.value = freq;
gainNode.gain.setValueAtTime(0.001, audioCtx.currentTime);
gainNode.gain.exponentialRampToValueAtTime(0.5, audioCtx.currentTime + 0.01);
oscillator.start();
gainNode.gain.exponentialRampToValueAtTime(0.001, audioCtx.currentTime + 0.9);
oscillator.stop(audioCtx.currentTime + 1);
}
window.addEventListener('keydown', (event) => {
const key = event.key.toLowerCase();
if (keyMapping[key]) {
playTone(keyMapping[key].freq);
const keyDiv = document.getElementById('key-' + key);
if (keyDiv) {
keyDiv.classList.add('active');
}
}
});
window.addEventListener('keyup', (event) => {
const key = event.key.toLowerCase();
const keyDiv = document.getElementById('key-' + key);
if (keyDiv) {
keyDiv.classList.remove('active');
}
});
</script>
</body>
</html>
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