Merge pull request 'advanced' (#1) from advanced into main

Reviewed-on: #1
This commit is contained in:
MLH
2024-12-17 00:54:55 +01:00
3 changed files with 164 additions and 89 deletions

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@ -1,57 +1,66 @@
/* container for fireworks */
.fireworks {
pointer-events: none;
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
overflow: hidden;
z-index: 10; /* put it on top */
}
/* every firework particle */
.firework {
position: absolute;
width: 6px;
height: 6px;
border-radius: 50%;
background: rgba(255, 255, 255, 0.9); /* standard colors */
animation: explode 2.5s ease-out forwards, colorShift 2.5s linear infinite;
/*animation: explode 1s ease-out forwards;*/
transform-origin: center;
}
/* animation for the explosion */
@keyframes explode {
0% {
transform: scale(0.5);
opacity: 1;
}
100% {
transform: translate(var(--x), var(--y)) scale(0.4);
opacity: 0;
}
}
/* colors for the fireworks */
@keyframes colorShift {
position: absolute;
top: 0;
left: 0;
width: 100%;
height: 100%;
pointer-events: none;
z-index: 10;
/* activate the following for fixed positioning */
/*position: fixed;*/
/*overflow: hidden;*/
}
.rocket-trail {
position: absolute;
left: var(--trailX);
top: var(--trailStartY);
width: 4px;
/* activate the following for rocket trail */
height: 60px;
background: linear-gradient(to bottom, rgba(255, 255, 255, 1), rgba(255, 255, 255, 0));
filter: blur(2px);
/* activate the following for rocket trail as a point */
/*height: 4px;*/
/*background: white;*/
/*border-radius: 50%;
box-shadow: 0 0 8px 2px white;*/
animation: rocket-trail-animation 1s linear forwards;
}
@keyframes rocket-trail-animation {
0% {
background: rgba(255, 0, 0, 1); /* Kräftiges Rot */
}
20% {
background: rgba(0, 255, 0, 1); /* Kräftiges Grün */
}
40% {
background: rgba(0, 0, 255, 1); /* Kräftiges Blau */
}
60% {
background: rgba(255, 255, 0, 1); /* Gelb */
}
80% {
background: rgba(255, 0, 255, 1); /* Magenta */
transform: translateY(0);
opacity: 1;
}
100% {
background: rgba(0, 255, 255, 1); /* Türkis */
transform: translateY(calc(var(--trailEndY) - var(--trailStartY)));
opacity: 0;
}
}
/* Animation for the particles */
@keyframes fireworkParticle {
0% {
opacity: 1;
transform: translate(0, 0);
}
100% {
opacity: 0;
transform: translate(var(--x), var(--y));
}
}
.firework {
position: absolute;
width: 5px;
height: 5px;
background: white;
border-radius: 50%;
animation: fireworkParticle 1.5s ease-out forwards;
filter: blur(1px);
}

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@ -1,7 +1,24 @@
const fireworks = true; // enable/disable fireworks
const scrollFireworks = true; // enable fireworks to scroll with page content
const particlesPerFirework = 50; // count of particles per firework
const minFireworks = 3; // minimum number of simultaneous fireworks
const maxFireworks = 6; // maximum number of simultaneous fireworks
const intervalOfFireworks = 3200; // interval for the fireworks in milliseconds
// array of color palettes for the fireworks
const colorPalettes = [
['#ff0000', '#ff7300', '#ff4500'], // red's
['#0040ff', '#5a9bff', '#b0d9ff'], // blue's
['#47ff00', '#8eff47', '#00ff7f'], // green's
['#ffd700', '#c0c0c0', '#ff6347'], // gold, silver, red
['#ff00ff', '#ff99ff', '#800080'], // magenta's
['#ffef00', '#ffff99', '#ffd700'], // yellow's
['#ff4500', '#ff6347', '#ff7f50'], // orange's
['#e3e3e3', '#c0c0c0', '#7d7c7c'], // silver's
];
let msgPrinted = false; // flag to prevent multiple console messages
let spacing = 0; // spacing between fireworks
// function to check and control fireworks
function toggleFirework() {
@ -41,69 +58,97 @@ observer.observe(document.body, {
attributes: true // observe changes to attributes (e.g. class changes)
});
// function to add random fireworks
function launchFirework() {
// Function to create a rocket trail
function createRocketTrail(x, startY, endY) {
const fireworkContainer = document.querySelector('.fireworks');
if (!fireworkContainer) return;
const rocketTrail = document.createElement('div');
rocketTrail.classList.add('rocket-trail');
fireworkContainer.appendChild(rocketTrail);
// some colors for the fireworks
const colors = ['#ff0000', '#00ff00', '#0000ff', '#ffff00', '#ff00ff', '#00ffff', '#ffffff'];
// Set position and animation
rocketTrail.style.setProperty('--trailX', `${x}px`);
rocketTrail.style.setProperty('--trailStartY', `${startY}px`);
rocketTrail.style.setProperty('--trailEndY', `${endY}px`);
// random position on the screen
const x = Math.random() * window.innerWidth * 0.8 + window.innerWidth * 0.1;
const y = Math.random() * window.innerHeight * 0.7 + window.innerHeight * 0.15;
//const x = Math.random() * window.innerWidth * 0.7 + window.innerWidth * 0.15; // Mittiger
//const y = Math.random() * window.innerHeight * 0.5 + window.innerHeight * 0.25; // Mittiger
// Remove the element after the animation
setTimeout(() => {
fireworkContainer.removeChild(rocketTrail);
}, 2000); // Duration of the animation
}
// Function for particle explosion
function createExplosion(x, y) {
const fireworkContainer = document.querySelector('.fireworks');
// Choose a random color palette
const chosenPalette = colorPalettes[Math.floor(Math.random() * colorPalettes.length)];
// create particles for the firework
for (let i = 0; i < particlesPerFirework; i++) {
const particle = document.createElement('div');
particle.classList.add('firework');
// random angle and distance
const angle = Math.random() * 2 * Math.PI; // 0 to 360 degrees
const distance = Math.random() * 150 + 100; // 50 to 150 pixels
const angle = Math.random() * 2 * Math.PI; // Random direction
const distance = Math.random() * 180 + 100; // Random distance
const xOffset = Math.cos(angle) * distance;
const yOffset = Math.sin(angle) * distance;
// get random color
const color = colors[Math.floor(Math.random() * colors.length)];
const colorDelay = Math.random() * 2; // Zufällige Verzögerung bis 2 Sekunden
// set particle properties
particle.style.left = `${x}px`;
particle.style.top = `${y}px`;
particle.style.setProperty('--x', `${xOffset}px`);
particle.style.setProperty('--y', `${yOffset}px`);
particle.style.background = color;
particle.style.background = chosenPalette[Math.floor(Math.random() * chosenPalette.length)];
particle.style.animationDelay = `${colorDelay}s`;
// add particle to the container
fireworkContainer.appendChild(particle);
// remove particle after animation ends so the DOM doesn't get filled with particles after 3 seconds
setTimeout(() => {
particle.remove();
}, 3000); // Animationduration about 2.5 seconds
// Remove particle after the animation
setTimeout(() => particle.remove(), 3000);
}
}
// automaticly start fireworks
function startFireworks() {
fireworksInterval = setInterval(() => {
const randomCount = Math.random() * 3 + 2; // 2 to 5 fireworks simultaneously
for (let i = 0; i < randomCount; i++) {
launchFirework();
}
}, 1800) // firework every 600 mil second
// Function for the firework with trail
function launchFirework() {
const fireworkContainer = document.querySelector('.fireworks');
if (!fireworkContainer) return;
// Random horizontal position
const x = Math.random() * window.innerWidth; // Any value across the entire width
// Trail starts at the bottom and ends at a random height around the middle
let startY, endY;
if (scrollFireworks) {
// Y-position considers scrolling
startY = window.scrollY + window.innerHeight; // Bottom edge of the window plus the scroll offset
endY = Math.random() * window.innerHeight * 0.5 + window.innerHeight * 0.2 + window.scrollY; // Area around the middle, but also with scrolling
} else {
startY = window.innerHeight; // Bottom edge of the window
endY = Math.random() * window.innerHeight * 0.5 + window.innerHeight * 0.2; // Area around the middle
}
// Create trail
createRocketTrail(x, startY, endY);
// Create explosion
setTimeout(() => {
createExplosion(x, endY); // Explosion at the end height
}, 1000); // or 1200
}
// initialize snowflakes and add random snowflakes after the DOM is loaded
// Start the firework routine
function startFireworks() {
fireworksInterval = setInterval(() => {
const randomCount = Math.floor(Math.random() * maxFireworks) + minFireworks;
for (let i = 0; i < randomCount; i++) {
setTimeout(() => {
launchFirework();
}, i * 200); // 200ms delay between fireworks
}
}, intervalOfFireworks); // Interval between fireworks
}
// Initialize fireworks and add random fireworks after the DOM is loaded
document.addEventListener('DOMContentLoaded', () => {
if (!fireworks) return; // exit if fireworks are disabled
startFireworks();
});
toggleFirework();
});

21
test-site.html Normal file
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@ -0,0 +1,21 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Fireworks Display</title>
<link rel="stylesheet" href="fireworks.css">
<style>
body {
background-color: black;
}
</style>
</head>
<body>
<div class="fireworks" aria-hidden="true"></div>
<script src="fireworks.js"></script>
</body>
</html>