Berikut Kode scrip background kembang api unuk blogger
<style>
#fireworksCanvas {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
z-index: -1; /* Tetap di belakang konten utama */
background: #4f95d1 url(https://themes.googleusercontent.com/image?id=1Y0O5JU8CLkKHHi4FmHOtErsnuKFCKsx2W7P3FfmED4QOygfNpRZZWv7_kEl1JitYHZfo)
no-repeat fixed top center;
overflow: hidden; /* Mencegah scroll */
}
.main-content {
position: relative;
z-index: 10;
background-color: #fff;
width: 100%; height: 100%;
margin: 50px auto;
padding: 20px;
box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
border-radius: 8px; overflow: hidden;
}
</style>
<canvas id="fireworksCanvas"></canvas>
<script>
const canvas = document.getElementById('fireworksCanvas');
const ctx = canvas.getContext('2d');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
const fireworks = [];
class Firework {
constructor(x, y, colors) {
this.x = x;
this.y = y;
this.colors = colors;
this.particles = [];
for (let i = 0; i < 50; i++) {
this.particles.push(new Particle(this.x, this.y, this.colors));
}
}
update() {
this.particles.forEach((particle, index) => {
particle.update();
if (particle.life <= 0) {
this.particles.splice(index, 1);
}
});
}
draw() {
this.particles.forEach(particle => particle.draw());
}
}
class Particle {
constructor(x, y, colors) {
this.x = x;
this.y = y;
this.speed = Math.random() * 4 + 1;
this.angle = Math.random() * Math.PI * 2;
this.radius = Math.random() * 3 + 1;
this.color = colors[Math.floor(Math.random() * colors.length)];
this.life = Math.random() * 100 + 50;
}
update() {
this.life -= 1;
this.x += Math.cos(this.angle) * this.speed;
this.y += Math.sin(this.angle) * this.speed;
this.speed *= 0.97;
}
draw() {
ctx.beginPath();
ctx.arc(this.x, this.y, this.radius, 0, Math.PI * 2);
ctx.fillStyle = this.color;
ctx.fill();
}
}
function createFirework() {
const padding = 100; // Jarak aman dari konten utama
const x = Math.random() * canvas.width;
const y = Math.random() * canvas.height;
// Hanya buat kembang api di area luar konten utama
if (
x < padding || x > canvas.width - padding ||
y < padding || y > canvas.height - padding
) {
const colors = ['#FF5733', '#FFC300', '#DAF7A6', '#33FF57', '#3357FF'];
fireworks.push(new Firework(x, y, colors));
}
}
function animate() {
ctx.fillStyle = 'rgba(0, 0, 0, 0.1)';
ctx.fillRect(0, 0, canvas.width, canvas.height);
fireworks.forEach((firework, index) => {
firework.update();
firework.draw();
if (firework.particles.length === 0) {
fireworks.splice(index, 1);
}
});
requestAnimationFrame(animate);
}
setInterval(createFirework, 100);
animate();
window.addEventListener('resize', () => {
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
});
</script>
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