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ChristmasTree.html
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1357 lines (1219 loc) · 51.8 KB
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<!DOCTYPE html>
<!-- MIT License
Copyright (c) 2025-2026 Yuliya Kolesnikova <0009-0000-6151-7415@orcid.org>
-->
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
<link rel="icon" href="data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 100'><text y='.9em' font-size='90'>🎄</text></svg>">
<title>🎄 Merry Christmas 🎄</title>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html {
height: 100%;
}
body {
font-family: 'Arial', sans-serif;
background: linear-gradient(to bottom, #0a1128 0%, #1a2456 50%, #2d3561 100%);
min-height: 100vh;
overflow-x: hidden;
overflow-y: auto;
display: flex;
flex-direction: column;
align-items: center;
position: relative;
padding: 10px 10px 30px;
}
.snow {
position: fixed;
top: -10px;
width: 100%;
height: 100%;
pointer-events: none;
z-index: 1000;
}
.snowflake {
position: absolute;
top: -10px;
color: white;
font-size: 1em;
opacity: 0.8;
animation: fall linear infinite;
text-shadow: 0 0 5px rgba(255, 255, 255, 0.8);
}
@keyframes fall {
to {
transform: translateY(100vh) rotate(360deg);
}
}
.container {
text-align: center;
z-index: 10;
padding: 10px;
width: 100%;
max-width: 700px;
}
h1 {
color: #fff;
font-size: clamp(1.4em, 4vw, 2.2em);
margin-bottom: 10px;
text-shadow: 0 0 20px rgba(255, 215, 0, 0.8);
animation: glow 2s ease-in-out infinite;
}
@keyframes glow {
0%, 100% {
text-shadow: 0 0 20px rgba(255, 215, 0, 0.8);
}
50% {
text-shadow: 0 0 30px rgba(255, 215, 0, 1), 0 0 40px rgba(255, 215, 0, 0.8);
}
}
.tree-container {
position: relative;
display: inline-block;
margin: 5px auto;
}
canvas#treeCanvas {
display: block;
margin: 0 auto;
}
.star {
position: absolute;
top: 2px;
left: 50%;
transform: translateX(-50%);
font-size: 2em;
animation: starGlow 1.5s ease-in-out infinite, starPulse 3s ease-in-out infinite;
filter: drop-shadow(0 0 20px gold);
z-index: 20;
}
@keyframes starGlow {
0%, 100% {
filter: drop-shadow(0 0 20px gold) drop-shadow(0 0 10px #fff);
}
50% {
filter: drop-shadow(0 0 35px gold) drop-shadow(0 0 50px orange) drop-shadow(0 0 15px #fff);
}
}
@keyframes starPulse {
0%, 100% { transform: translateX(-50%) scale(1) rotate(0deg); }
25% { transform: translateX(-50%) scale(1.1) rotate(5deg); }
50% { transform: translateX(-50%) scale(1) rotate(0deg); }
75% { transform: translateX(-50%) scale(1.1) rotate(-5deg); }
}
.controls {
margin-top: 12px;
display: flex;
gap: 8px;
justify-content: center;
flex-wrap: wrap;
}
button {
padding: 8px 16px;
font-size: 13px;
border: none;
border-radius: 25px;
cursor: pointer;
background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
color: white;
font-weight: bold;
transition: all 0.3s ease;
box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}
button:hover {
transform: translateY(-2px);
box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}
button:active {
transform: translateY(0);
}
button.active {
background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
box-shadow: 0 4px 15px rgba(240, 147, 251, 0.4);
}
.message {
color: #fff;
font-size: clamp(0.9em, 2.5vw, 1.2em);
margin-top: 10px;
text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
animation: fadeIn 2s ease-in;
}
@keyframes fadeIn {
from { opacity: 0; }
to { opacity: 1; }
}
.presents {
display: flex;
gap: 12px;
justify-content: center;
margin-top: 8px;
}
.present {
width: 36px;
height: 36px;
background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
border-radius: 4px;
position: relative;
animation: bounce 2s ease-in-out infinite;
box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}
.present::before {
content: '';
position: absolute;
top: 50%;
left: 0;
right: 0;
height: 6px;
background: gold;
transform: translateY(-50%);
}
.present::after {
content: '';
position: absolute;
left: 50%;
top: 0;
bottom: 0;
width: 6px;
background: gold;
transform: translateX(-50%);
}
@keyframes bounce {
0%, 100% { transform: translateY(0); }
50% { transform: translateY(-8px); }
}
.present:nth-child(2) {
background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
animation-delay: 0.3s;
}
.present:nth-child(3) {
background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
animation-delay: 0.6s;
}
.bow {
position: absolute;
top: -9px;
left: 50%;
transform: translateX(-50%);
width: 20px;
height: 10px;
z-index: 2;
}
.bow::before, .bow::after {
content: '';
position: absolute;
width: 12px;
height: 8px;
border-radius: 50%;
top: 2px;
}
.bow::before {
left: -2px;
background: gold;
}
.bow::after {
right: -2px;
background: gold;
}
.music-note {
position: fixed;
font-size: 1.5em;
opacity: 0;
pointer-events: none;
z-index: 999;
animation: floatUp 3s ease-out;
}
@keyframes floatUp {
0% {
opacity: 1;
transform: translateY(0) rotate(0deg);
}
100% {
opacity: 0;
transform: translateY(-150px) rotate(360deg);
}
}
.ground {
position: relative;
width: 250px;
height: 18px;
background: radial-gradient(ellipse at center, rgba(255,255,255,0.35) 0%, rgba(255,255,255,0) 70%);
margin-top: -5px;
border-radius: 50%;
}
.music-visualizer {
display: flex;
gap: 2px;
justify-content: center;
align-items: flex-end;
height: 22px;
margin-top: 6px;
opacity: 0;
transition: opacity 0.5s;
}
.music-visualizer.active {
opacity: 1;
}
.viz-bar {
width: 3px;
background: linear-gradient(to top, #667eea, #f093fb);
border-radius: 2px;
transition: height 0.1s;
animation: vizPulse 0.5s ease-in-out infinite alternate;
}
@keyframes vizPulse {
from { opacity: 0.7; }
to { opacity: 1; }
}
.song-selector {
margin-top: 8px;
display: flex;
gap: 6px;
justify-content: center;
flex-wrap: wrap;
}
.song-btn {
padding: 5px 12px;
font-size: 11px;
border: 2px solid rgba(255,255,255,0.2);
border-radius: 20px;
cursor: pointer;
background: rgba(255,255,255,0.08);
color: #ddd;
font-weight: bold;
transition: all 0.3s ease;
}
.song-btn:hover {
background: rgba(255,255,255,0.15);
border-color: rgba(255,255,255,0.4);
color: #fff;
}
.song-btn.active {
background: linear-gradient(135deg, rgba(240,147,251,0.3), rgba(245,87,108,0.3));
border-color: #f093fb;
color: #fff;
}
.now-playing {
color: #f093fb;
font-size: 0.8em;
margin-top: 5px;
min-height: 1.1em;
text-shadow: 0 0 10px rgba(240,147,251,0.5);
}
@media (max-height: 800px) {
h1 { font-size: 1.3em; margin-bottom: 5px; }
.star { font-size: 1.5em; top: 1px; }
}
@media (max-width: 768px) {
h1 {
font-size: 1.5em;
}
button {
padding: 6px 12px;
font-size: 12px;
}
.song-btn {
padding: 4px 10px;
font-size: 10px;
}
}
</style>
</head>
<body>
<div class="snow" id="snow"></div>
<div class="container">
<h1>🎄 Merry Christmas! 🎄</h1>
<div class="tree-container" id="treeContainer">
<div class="star" id="starEl">⭐</div>
<canvas id="treeCanvas"></canvas>
</div>
<div class="ground"></div>
<div class="presents">
<div class="present"><div class="bow"></div></div>
<div class="present"><div class="bow"></div></div>
<div class="present"><div class="bow"></div></div>
</div>
<div class="controls">
<button onclick="toggleSnow()">❄️ Toggle Snow</button>
<button onclick="toggleLights()">💡 Toggle Lights</button>
<button onclick="toggleMusic()" id="musicBtn">🎵 Play Music</button>
<button onclick="addOrnament()">🎁 Add Ornament</button>
</div>
<div class="song-selector" id="songSelector">
<button class="song-btn active" onclick="selectSong(0, this)">🔔 Jingle Bells</button>
<button class="song-btn" onclick="selectSong(1, this)">🌲 O Christmas Tree</button>
<button class="song-btn" onclick="selectSong(2, this)">🌙 Silent Night</button>
<button class="song-btn" onclick="selectSong(3, this)">⛄ Deck the Halls</button>
<button class="song-btn" onclick="selectSong(4, this)">🎅 We Wish You</button>
</div>
<div class="now-playing" id="nowPlaying"></div>
<div class="music-visualizer" id="visualizer"></div>
<div class="message">
May your days be merry and bright! ✨
</div>
</div>
<script>
// ─── Configuration ───
let snowEnabled = true;
let lightsEnabled = true;
let musicPlaying = false;
let audioContext;
let currentSong = 0;
let scheduledNodes = [];
let musicTimeout = null;
let vizInterval = null;
let snowTimer = null;
let animFrameId = null;
let noteEmitInterval = null;
let autoRotate = true;
const canvas = document.getElementById('treeCanvas');
const ctx = canvas.getContext('2d');
function getCanvasSize() {
const vh = window.innerHeight;
const vw = window.innerWidth;
const reservedH = 340;
const availH = Math.max(200, vh - reservedH);
const availW = Math.min(vw - 40, 500);
const h = Math.min(availH, 420);
const w = Math.min(availW, Math.round(h * 0.77));
return { w, h };
}
let canvasW, canvasH;
let treeCenterX, treeTopY, treeBottomY, trunkTop, trunkBottom, trunkWidth, maxHalfWidth;
function resizeCanvas() {
const size = getCanvasSize();
canvasW = size.w;
canvasH = size.h;
canvas.width = canvasW;
canvas.height = canvasH;
canvas.style.width = canvasW + 'px';
canvas.style.height = canvasH + 'px';
treeCenterX = canvasW / 2;
treeTopY = Math.round(canvasH * 0.087);
treeBottomY = Math.round(canvasH * 0.808);
trunkTop = treeBottomY;
trunkBottom = Math.round(canvasH * 0.942);
trunkWidth = Math.round(canvasW * 0.088);
maxHalfWidth = Math.round(canvasW * 0.39);
initOrnaments();
initLights();
}
function treeHalfWidthAt(y) {
if (y < treeTopY || y > treeBottomY) return 0;
const t = (y - treeTopY) / (treeBottomY - treeTopY);
return 10 + (maxHalfWidth - 10) * t;
}
let ornaments = [];
let lights = [];
let extraOrnaments = [];
function initOrnaments() {
ornaments = [];
const colors = ['#ff0000','#ffd700','#0066ff','#c0c0c0','#ff69b4','#ff4500','#00ced1','#9400d3'];
const rowFractions = [0.25, 0.4, 0.55, 0.7, 0.85];
const rowCounts = [2, 3, 4, 5, 6];
rowFractions.forEach((frac, ri) => {
const y = treeTopY + frac * (treeBottomY - treeTopY);
const hw = treeHalfWidthAt(y) * 0.75;
const count = rowCounts[ri];
for (let i = 0; i < count; i++) {
const x = treeCenterX - hw + (2 * hw) * (i / (count - 1 || 1));
ornaments.push({
x: x,
y: y + (Math.random() - 0.5) * 12,
r: Math.max(4, canvasW * 0.018 + Math.random() * canvasW * 0.01),
color: colors[Math.floor(Math.random() * colors.length)],
phase: Math.random() * Math.PI * 2
});
}
});
}
function initLights() {
lights = [];
const lightColors = ['#ff0000','#00ff00','#ffff00','#ff00ff','#00ffff','#ff8800','#ffffff'];
for (let i = 0; i < 50; i++) {
const t = i / 50;
const y = treeTopY + 20 + t * (treeBottomY - treeTopY - 30);
const hw = treeHalfWidthAt(y) * 0.85;
const angle = t * Math.PI * 6;
const x = treeCenterX + Math.sin(angle) * hw;
lights.push({
x: x,
y: y,
color: lightColors[i % lightColors.length],
phase: Math.random() * Math.PI * 2,
baseR: Math.max(2, canvasW * 0.007 + Math.random() * canvasW * 0.004)
});
}
}
function initVisualizer() {
const viz = document.getElementById('visualizer');
viz.innerHTML = '';
for (let i = 0; i < 20; i++) {
const bar = document.createElement('div');
bar.classList.add('viz-bar');
bar.style.height = '2px';
bar.style.animationDelay = (i * 0.05) + 's';
viz.appendChild(bar);
}
}
initVisualizer();
function updateVisualizer() {
const bars = document.querySelectorAll('.viz-bar');
bars.forEach((bar) => {
const h = musicPlaying ? (3 + Math.random() * 19) : 2;
bar.style.height = h + 'px';
});
}
let time = 0;
function drawTree() {
ctx.clearRect(0, 0, canvasW, canvasH);
time += 0.02;
const trunkGrad = ctx.createLinearGradient(treeCenterX - trunkWidth/2, trunkTop, treeCenterX + trunkWidth/2, trunkTop);
trunkGrad.addColorStop(0, '#3a1a08');
trunkGrad.addColorStop(0.3, '#5c3310');
trunkGrad.addColorStop(0.7, '#5c3310');
trunkGrad.addColorStop(1, '#3a1a08');
ctx.fillStyle = trunkGrad;
ctx.beginPath();
ctx.moveTo(treeCenterX - trunkWidth/2, trunkTop);
ctx.lineTo(treeCenterX + trunkWidth/2, trunkTop);
ctx.lineTo(treeCenterX + trunkWidth/2 + 3, trunkBottom);
ctx.lineTo(treeCenterX - trunkWidth/2 - 3, trunkBottom);
ctx.closePath();
ctx.fill();
ctx.strokeStyle = 'rgba(0,0,0,0.15)';
ctx.lineWidth = 1;
for (let i = 0; i < 6; i++) {
const bx = treeCenterX - trunkWidth/2 + 4 + Math.random() * (trunkWidth - 8);
ctx.beginPath();
ctx.moveTo(bx, trunkTop + 3);
ctx.lineTo(bx + (Math.random()-0.5)*3, trunkBottom - 3);
ctx.stroke();
}
const layers = [
{ topY: treeTopY, bottomY: treeTopY + (treeBottomY - treeTopY) * 0.36 },
{ topY: treeTopY + (treeBottomY - treeTopY) * 0.23, bottomY: treeTopY + (treeBottomY - treeTopY) * 0.6 },
{ topY: treeTopY + (treeBottomY - treeTopY) * 0.44, bottomY: treeTopY + (treeBottomY - treeTopY) * 0.84 },
{ topY: treeTopY + (treeBottomY - treeTopY) * 0.65, bottomY: treeBottomY }
];
layers.forEach((layer, li) => {
drawTreeLayer(layer.topY, layer.bottomY, li);
});
if (lightsEnabled) {
lights.forEach((l) => {
const flicker = 0.5 + 0.5 * Math.sin(time * 3 + l.phase);
const r = l.baseR * (0.8 + 0.4 * flicker);
const glow = ctx.createRadialGradient(l.x, l.y, 0, l.x, l.y, r * 4);
glow.addColorStop(0, l.color + 'aa');
glow.addColorStop(1, l.color + '00');
ctx.fillStyle = glow;
ctx.beginPath();
ctx.arc(l.x, l.y, r * 4, 0, Math.PI * 2);
ctx.fill();
ctx.fillStyle = l.color;
ctx.shadowColor = l.color;
ctx.shadowBlur = 6 * flicker;
ctx.beginPath();
ctx.arc(l.x, l.y, r, 0, Math.PI * 2);
ctx.fill();
ctx.shadowBlur = 0;
});
}
const allOrn = ornaments.concat(extraOrnaments);
allOrn.forEach(o => drawOrnament(o));
drawSnowOnTree();
animFrameId = requestAnimationFrame(drawTree);
}
function drawTreeLayer(topY, bottomY, layerIndex) {
const topHW = treeHalfWidthAt(topY) * 0.3;
const bottomHW = treeHalfWidthAt(bottomY);
const jaggedSegments = 16;
const darkGrad = ctx.createLinearGradient(treeCenterX, topY, treeCenterX, bottomY);
darkGrad.addColorStop(0, '#1a4d0a');
darkGrad.addColorStop(0.5, '#2d6b15');
darkGrad.addColorStop(1, '#1a4d0a');
ctx.beginPath();
ctx.moveTo(treeCenterX, topY);
for (let i = 0; i <= jaggedSegments; i++) {
const t = i / jaggedSegments;
const y = topY + t * (bottomY - topY);
const baseHW = topHW + (bottomHW - topHW) * t;
const jag = (i % 2 === 0) ? Math.random() * 6 : -Math.random() * 5;
ctx.lineTo(treeCenterX + baseHW + jag, y);
}
for (let i = jaggedSegments; i >= 0; i--) {
const t = i / jaggedSegments;
const y = bottomY + (Math.random() - 0.5) * 5;
const baseHW = bottomHW * (2 * t - 1);
ctx.lineTo(treeCenterX + baseHW, y);
}
for (let i = jaggedSegments; i >= 0; i--) {
const t = i / jaggedSegments;
const y = topY + t * (bottomY - topY);
const baseHW = topHW + (bottomHW - topHW) * t;
const jag = (i % 2 === 0) ? Math.random() * 6 : -Math.random() * 5;
ctx.lineTo(treeCenterX - baseHW - jag, y);
}
ctx.closePath();
ctx.fillStyle = darkGrad;
ctx.fill();
const lightGrad = ctx.createLinearGradient(treeCenterX - bottomHW, topY, treeCenterX + bottomHW * 0.3, bottomY);
lightGrad.addColorStop(0, 'rgba(60,140,30,0.0)');
lightGrad.addColorStop(0.4, 'rgba(60,140,30,0.3)');
lightGrad.addColorStop(0.7, 'rgba(40,100,20,0.1)');
lightGrad.addColorStop(1, 'rgba(20,60,10,0.0)');
ctx.fillStyle = lightGrad;
ctx.fill();
drawBranches(topY, bottomY, layerIndex);
}
function drawBranches(topY, bottomY, layerIndex) {
ctx.strokeStyle = 'rgba(30,80,15,0.6)';
ctx.lineWidth = 1.2;
const numBranches = 10 + layerIndex * 3;
const seed = layerIndex * 1000;
for (let i = 0; i < numBranches; i++) {
const pseudoRand = Math.sin(seed + i * 127.1) * 0.5 + 0.5;
const pseudoRand2 = Math.sin(seed + i * 311.7) * 0.5 + 0.5;
const pseudoRand3 = Math.sin(seed + i * 531.3) * 0.5 + 0.5;
const y = topY + 10 + pseudoRand * (bottomY - topY - 15);
const hw = treeHalfWidthAt(y);
const side = pseudoRand2 > 0.5 ? 1 : -1;
const startX = treeCenterX + side * pseudoRand3 * hw * 0.3;
const endX = treeCenterX + side * hw * (0.5 + pseudoRand3 * 0.45);
const endY = y + 6 + pseudoRand * 10;
ctx.beginPath();
ctx.moveTo(startX, y);
ctx.quadraticCurveTo((startX + endX) / 2, y + 2, endX, endY);
ctx.stroke();
const steps = 3;
for (let j = 1; j <= steps; j++) {
const t = j / (steps + 1);
const bx = startX + (endX - startX) * t;
const by = y + (endY - y) * t;
ctx.strokeStyle = `rgba(25,${70 + Math.floor(pseudoRand * 40)},12,0.4)`;
ctx.beginPath();
ctx.moveTo(bx, by);
ctx.lineTo(bx + side * (4 + pseudoRand * 5), by + 3 + pseudoRand * 3);
ctx.stroke();
ctx.beginPath();
ctx.moveTo(bx, by);
ctx.lineTo(bx + side * (3 + pseudoRand * 4), by - 2 - pseudoRand * 2);
ctx.stroke();
}
}
}
function drawOrnament(o) {
const pulse = 1 + 0.08 * Math.sin(time * 2 + o.phase);
const r = o.r * pulse;
ctx.fillStyle = 'rgba(0,0,0,0.3)';
ctx.beginPath();
ctx.ellipse(o.x + 1.5, o.y + 1.5, r, r * 0.9, 0, 0, Math.PI * 2);
ctx.fill();
const ballGrad = ctx.createRadialGradient(o.x - r * 0.3, o.y - r * 0.3, r * 0.1, o.x, o.y, r);
ballGrad.addColorStop(0, lightenColor(o.color, 80));
ballGrad.addColorStop(0.5, o.color);
ballGrad.addColorStop(1, darkenColor(o.color, 40));
ctx.fillStyle = ballGrad;
ctx.beginPath();
ctx.arc(o.x, o.y, r, 0, Math.PI * 2);
ctx.fill();
ctx.fillStyle = 'rgba(255,255,255,0.5)';
ctx.beginPath();
ctx.ellipse(o.x - r * 0.25, o.y - r * 0.3, r * 0.35, r * 0.2, -0.5, 0, Math.PI * 2);
ctx.fill();
ctx.fillStyle = '#c0c0c0';
ctx.fillRect(o.x - 2, o.y - r - 2, 4, 4);
ctx.fillStyle = '#888';
ctx.fillRect(o.x - 2, o.y - r - 2, 4, 1.5);
const glowGrad = ctx.createRadialGradient(o.x, o.y, r, o.x, o.y, r * 2);
glowGrad.addColorStop(0, o.color + '44');
glowGrad.addColorStop(1, o.color + '00');
ctx.fillStyle = glowGrad;
ctx.beginPath();
ctx.arc(o.x, o.y, r * 2, 0, Math.PI * 2);
ctx.fill();
}
function drawSnowOnTree() {
ctx.fillStyle = 'rgba(255,255,255,0.5)';
const fracs = [0.12, 0.3, 0.49, 0.69, 0.87];
const spreads = [0.6, 0.7, 0.65, 0.7, 0.6];
fracs.forEach((frac, i) => {
const y = treeTopY + frac * (treeBottomY - treeTopY);
const hw = treeHalfWidthAt(y);
ctx.beginPath();
ctx.ellipse(treeCenterX + hw * spreads[i], y, 9, 3, 0.3, 0, Math.PI * 2);
ctx.fill();
ctx.beginPath();
ctx.ellipse(treeCenterX - hw * spreads[i], y, 7, 2.5, -0.3, 0, Math.PI * 2);
ctx.fill();
});
ctx.fillStyle = 'rgba(255,255,255,0.6)';
ctx.beginPath();
ctx.ellipse(treeCenterX, treeTopY + 6, 10, 4, 0, 0, Math.PI * 2);
ctx.fill();
}
function lightenColor(hex, amount) {
const rgb = hexToRgb(hex);
if (!rgb) return hex;
return `rgb(${Math.min(255, rgb.r + amount)},${Math.min(255, rgb.g + amount)},${Math.min(255, rgb.b + amount)})`;
}
function darkenColor(hex, amount) {
const rgb = hexToRgb(hex);
if (!rgb) return hex;
return `rgb(${Math.max(0, rgb.r - amount)},${Math.max(0, rgb.g - amount)},${Math.max(0, rgb.b - amount)})`;
}
function hexToRgb(hex) {
hex = hex.replace('#', '');
if (hex.length === 3) hex = hex[0]+hex[0]+hex[1]+hex[1]+hex[2]+hex[2];
const num = parseInt(hex, 16);
if (isNaN(num)) return null;
return { r: (num >> 16) & 255, g: (num >> 8) & 255, b: num & 255 };
}
resizeCanvas();
drawTree();
window.addEventListener('resize', () => {
extraOrnaments = [];
resizeCanvas();
});
// ─── Snowflakes ───
function createSnowflake() {
const snowflake = document.createElement('div');
snowflake.classList.add('snowflake');
snowflake.innerHTML = Math.random() > 0.5 ? '❄' : '❅';
snowflake.style.left = Math.random() * 100 + '%';
snowflake.style.animationDuration = (Math.random() * 3 + 2) + 's';
snowflake.style.fontSize = (Math.random() * 0.8 + 0.4) + 'em';
snowflake.style.animationDelay = Math.random() * 2 + 's';
snowflake.style.opacity = 0.4 + Math.random() * 0.5;
document.getElementById('snow').appendChild(snowflake);
setTimeout(() => snowflake.remove(), 5000);
}
snowTimer = setInterval(() => {
if (snowEnabled) createSnowflake();
}, 200);
function toggleSnow() {
snowEnabled = !snowEnabled;
if (!snowEnabled) document.getElementById('snow').innerHTML = '';
}
function toggleLights() {
lightsEnabled = !lightsEnabled;
}
function addOrnament() {
const colors = ['#ff0000','#ffd700','#0066ff','#c0c0c0','#ff69b4','#ff4500','#00ced1','#9400d3'];
const y = treeTopY + 50 + Math.random() * (treeBottomY - treeTopY - 70);
const hw = treeHalfWidthAt(y) * 0.7;
const x = treeCenterX + (Math.random() - 0.5) * 2 * hw;
extraOrnaments.push({
x, y,
r: Math.max(4, canvasW * 0.018 + Math.random() * canvasW * 0.01),
color: colors[Math.floor(Math.random() * colors.length)],
phase: Math.random() * Math.PI * 2
});
const note = document.createElement('div');
note.classList.add('music-note');
note.innerHTML = ['🎵','🎶','✨'][Math.floor(Math.random()*3)];
note.style.left = (Math.random() * 80 + 10) + '%';
note.style.top = '50%';
document.body.appendChild(note);
setTimeout(() => note.remove(), 3000);
}
// ══════════════════════════════════════════════
// ─── ADVANCED MUSIC SYSTEM ───
// ══════════════════════════════════════════════
const NOTE_FREQS = {
'C3': 130.81, 'D3': 146.83, 'E3': 164.81, 'F3': 174.61, 'G3': 196.00, 'A3': 220.00, 'B3': 246.94,
'C4': 261.63, 'D4': 293.66, 'E4': 329.63, 'F4': 349.23, 'G4': 392.00, 'A4': 440.00, 'B4': 493.88,
'C5': 523.25, 'D5': 587.33, 'E5': 659.25, 'F5': 698.46, 'G5': 783.99,
'Bb3': 233.08, 'Eb4': 311.13, 'Ab3': 207.65, 'Bb4': 466.16, 'F#4': 369.99,
'Db4': 277.18, 'Ab4': 415.30, 'Gb4': 369.99, 'Eb3': 155.56
};
function noteFreq(name) { return NOTE_FREQS[name] || 261.63; }
function beatDur(bpm) { return 60 / bpm; }
const SONGS = [
{
name: '🔔 Jingle Bells',
bpm: 160,
melody: [
{n:'E4',b:1},{n:'E4',b:1},{n:'E4',b:2},
{n:'E4',b:1},{n:'E4',b:1},{n:'E4',b:2},
{n:'E4',b:1},{n:'G4',b:1},{n:'C4',b:1},{n:'D4',b:1},
{n:'E4',b:4},
{n:'F4',b:1},{n:'F4',b:1},{n:'F4',b:1},{n:'F4',b:1},
{n:'F4',b:1},{n:'E4',b:1},{n:'E4',b:1},{n:'E4',b:0.5},{n:'E4',b:0.5},
{n:'E4',b:1},{n:'D4',b:1},{n:'D4',b:1},{n:'E4',b:1},
{n:'D4',b:2},{n:'G4',b:2},
{n:'E4',b:1},{n:'E4',b:1},{n:'E4',b:2},
{n:'E4',b:1},{n:'E4',b:1},{n:'E4',b:2},
{n:'E4',b:1},{n:'G4',b:1},{n:'C4',b:1},{n:'D4',b:1},
{n:'E4',b:4},
{n:'F4',b:1},{n:'F4',b:1},{n:'F4',b:1},{n:'F4',b:1},
{n:'F4',b:1},{n:'E4',b:1},{n:'E4',b:1},{n:'E4',b:0.5},{n:'E4',b:0.5},
{n:'G4',b:1},{n:'G4',b:1},{n:'F4',b:1},{n:'D4',b:1},
{n:'C4',b:4}
],
harmony: [
{n:'C4',b:2},{n:'C4',b:2},{n:'C4',b:4},
{n:'C4',b:2},{n:'C4',b:2},{n:'C4',b:2},{n:'E4',b:2},
{n:'C4',b:4},
{n:'D4',b:2},{n:'D4',b:2},
{n:'D4',b:2},{n:'C4',b:2},
{n:'C4',b:2},{n:'B3',b:2},
{n:'B3',b:2},{n:'D4',b:2},
{n:'C4',b:2},{n:'C4',b:2},{n:'C4',b:4},
{n:'C4',b:2},{n:'C4',b:2},{n:'C4',b:2},{n:'E4',b:2},
{n:'C4',b:4},
{n:'D4',b:2},{n:'D4',b:2},
{n:'D4',b:2},{n:'C4',b:2},
{n:'D4',b:2},{n:'D4',b:2},
{n:'E4',b:4}
],
bass: [
{n:'C3',b:4},{n:'C3',b:4},{n:'C3',b:4},{n:'C3',b:4},
{n:'F3',b:4},{n:'C3',b:4},{n:'G3',b:4},{n:'G3',b:4},
{n:'C3',b:4},{n:'C3',b:4},{n:'C3',b:4},{n:'C3',b:4},
{n:'F3',b:4},{n:'C3',b:4},{n:'G3',b:4},{n:'C3',b:4}
]
},
{
name: '🌲 O Christmas Tree',
bpm: 120,
melody: [
{n:'C4',b:1},{n:'F4',b:2},{n:'F4',b:1},
{n:'F4',b:1.5},{n:'G4',b:0.5},{n:'A4',b:2},
{n:'A4',b:1},{n:'A4',b:1.5},{n:'G4',b:0.5},{n:'A4',b:1},{n:'B4',b:0.5},
{n:'G4',b:2},{n:'E4',b:1},
{n:'C5',b:2},{n:'A4',b:1},
{n:'A4',b:1.5},{n:'G4',b:0.5},{n:'G4',b:1},
{n:'F4',b:3},
{n:'C4',b:1},{n:'F4',b:2},{n:'F4',b:1},
{n:'F4',b:1.5},{n:'G4',b:0.5},{n:'A4',b:2},
{n:'A4',b:1},{n:'A4',b:1.5},{n:'G4',b:0.5},{n:'A4',b:1},{n:'B4',b:0.5},
{n:'G4',b:2},{n:'E4',b:1},
{n:'C5',b:2},{n:'A4',b:1},
{n:'A4',b:1.5},{n:'G4',b:0.5},{n:'G4',b:1},
{n:'F4',b:3}
],
harmony: [
{n:'C3',b:3},{n:'F3',b:3},{n:'F3',b:3},{n:'C4',b:3},
{n:'C4',b:3},{n:'C3',b:3},{n:'E3',b:3},{n:'F3',b:3},
{n:'C3',b:3},{n:'F3',b:3},{n:'F3',b:3},{n:'C4',b:3},
{n:'C4',b:3},{n:'C3',b:3},{n:'E3',b:3},{n:'F3',b:3}
],
bass: [
{n:'C3',b:3},{n:'F3',b:3},{n:'F3',b:3},{n:'E3',b:3},
{n:'F3',b:3},{n:'C3',b:3},{n:'C3',b:3},{n:'F3',b:3},
{n:'C3',b:3},{n:'F3',b:3},{n:'F3',b:3},{n:'E3',b:3},
{n:'F3',b:3},{n:'C3',b:3},{n:'C3',b:3},{n:'F3',b:3}
]
},
{
name: '🌙 Silent Night',
bpm: 90,
melody: [
{n:'G4',b:1.5},{n:'A4',b:0.5},{n:'G4',b:1},
{n:'E4',b:3},
{n:'G4',b:1.5},{n:'A4',b:0.5},{n:'G4',b:1},
{n:'E4',b:3},
{n:'D5',b:2},{n:'D5',b:1},
{n:'B4',b:3},
{n:'C5',b:2},{n:'C5',b:1},
{n:'G4',b:3},
{n:'A4',b:2},{n:'A4',b:1},
{n:'C5',b:1.5},{n:'B4',b:0.5},{n:'A4',b:1},
{n:'G4',b:1.5},{n:'A4',b:0.5},{n:'G4',b:1},
{n:'E4',b:3},
{n:'A4',b:2},{n:'A4',b:1},
{n:'C5',b:1.5},{n:'B4',b:0.5},{n:'A4',b:1},
{n:'G4',b:1.5},{n:'A4',b:0.5},{n:'G4',b:1},
{n:'E4',b:3},
{n:'D5',b:2},{n:'D5',b:1},
{n:'F4',b:1.5},{n:'D5',b:0.5},{n:'B4',b:1},
{n:'C5',b:3},
{n:'E5',b:3},
{n:'C5',b:1},{n:'G4',b:1},{n:'E4',b:1},
{n:'G4',b:1.5},{n:'F4',b:0.5},{n:'D4',b:1},
{n:'C4',b:3}
],
harmony: [
{n:'E4',b:3},{n:'C4',b:3},{n:'E4',b:3},{n:'C4',b:3},
{n:'G4',b:3},{n:'G4',b:3},{n:'E4',b:3},{n:'E4',b:3},
{n:'F4',b:3},{n:'E4',b:3},{n:'E4',b:3},{n:'C4',b:3},
{n:'F4',b:3},{n:'E4',b:3},{n:'E4',b:3},{n:'C4',b:3},
{n:'G4',b:3},{n:'F4',b:3},{n:'E4',b:3},{n:'G4',b:3},
{n:'E4',b:3},{n:'D4',b:3},{n:'C4',b:3}
],
bass: [
{n:'C3',b:3},{n:'C3',b:3},{n:'C3',b:3},{n:'C3',b:3},
{n:'G3',b:3},{n:'G3',b:3},{n:'C3',b:3},{n:'C3',b:3},
{n:'F3',b:3},{n:'C3',b:3},{n:'C3',b:3},{n:'C3',b:3},
{n:'F3',b:3},{n:'C3',b:3},{n:'C3',b:3},{n:'C3',b:3},
{n:'G3',b:3},{n:'G3',b:3},{n:'C3',b:3},{n:'C3',b:3},
{n:'F3',b:3},{n:'G3',b:3},{n:'C3',b:3}
]
},
{
name: '⛄ Deck the Halls',
bpm: 140,
melody: [
{n:'C5',b:1.5},{n:'B4',b:0.5},{n:'A4',b:1},{n:'G4',b:1},
{n:'A4',b:1},{n:'G4',b:1},{n:'F4',b:1},{n:'E4',b:1},
{n:'F4',b:1},{n:'G4',b:1},{n:'A4',b:1},{n:'F4',b:1},
{n:'G4',b:1.5},{n:'F4',b:0.5},{n:'E4',b:1},{n:'D4',b:1},
{n:'E4',b:1},{n:'F4',b:1},{n:'G4',b:1},{n:'A4',b:1},
{n:'B4',b:1},{n:'C5',b:1},{n:'B4',b:1},{n:'A4',b:1},
{n:'G4',b:2},{n:'A4',b:1},{n:'B4',b:1},
{n:'C5',b:4},
{n:'C5',b:1.5},{n:'B4',b:0.5},{n:'A4',b:1},{n:'G4',b:1},
{n:'A4',b:1},{n:'G4',b:1},{n:'F4',b:1},{n:'E4',b:1},
{n:'F4',b:1},{n:'G4',b:1},{n:'A4',b:1},{n:'F4',b:1},
{n:'G4',b:1.5},{n:'F4',b:0.5},{n:'E4',b:1},{n:'D4',b:1},
{n:'E4',b:1},{n:'F4',b:1},{n:'G4',b:1},{n:'A4',b:1},
{n:'B4',b:1},{n:'C5',b:1},{n:'B4',b:1},{n:'A4',b:1},
{n:'G4',b:2},{n:'A4',b:1},{n:'B4',b:1},
{n:'C5',b:4}
],
harmony: [
{n:'E4',b:2},{n:'C4',b:2},{n:'C4',b:2},{n:'C4',b:2},
{n:'D4',b:2},{n:'C4',b:2},{n:'D4',b:2},{n:'B3',b:2},
{n:'C4',b:2},{n:'D4',b:2},{n:'D4',b:2},{n:'C4',b:2},
{n:'E4',b:2},{n:'D4',b:2},{n:'E4',b:4},
{n:'E4',b:2},{n:'C4',b:2},{n:'C4',b:2},{n:'C4',b:2},
{n:'D4',b:2},{n:'C4',b:2},{n:'D4',b:2},{n:'B3',b:2},
{n:'C4',b:2},{n:'D4',b:2},{n:'D4',b:2},{n:'C4',b:2},
{n:'E4',b:2},{n:'D4',b:2},{n:'E4',b:4}
],