很快就是2024年了,让我们好好告别2023,迎接2024。
凡是过往皆是序章,所有未来皆为可盼。在2023年里也许你踏足山藏,拥有花的铺簧书的风光,也许你进入低谷,经历了一个人的兵荒马乱。但没关系,都翻篇了。
笔者很喜欢的一句话:“既然上了生活的贼船,那就做一个快乐的海盗。”
留下一句,2024,愿新年胜旧年。辞著尔尔,烟火年年,朝朝暮暮,岁岁平安!
1、HTML
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title> happy new year fireworks</title>
</head>
<body>
<!-- partial:index.partial.html -->
<!-- partial -->
<script src="assets/js/script.js"></script>
</body>
</html>
2、部分JavaScript
let chars, particles, canvas, ctx, w, h, current;
let duration = 5000;
let str = ['Happy', 'New', 'Year' , '2024'];
init();
resize();
requestAnimationFrame(render);
addEventListener('resize', resize);
function firework(t, i, pts) {
t -= i*200;
let id = i + chars.length*parseInt(t - t%duration);
t = t % duration / duration;
let dx = (i+1)*w/(1+chars.length);
dx += Math.min(0.33, t)*100*Math.sin(id);
let dy = h*0.5;
dy += Math.sin(id*4547.411)*h*0.1;
if (t < 0.33) {
rocket(dx, dy, id, t*3);
} else {
explosion(pts, dx, dy, id, Math.min(1, Math.max(0, t-0.33)*2));
}
}
function rocket(x, y, id, t) {
ctx.fillStyle = 'white';
let r = 2-2*t + Math.pow(t, 15*t)*16;
y = h - y*t;
circle(x, y, r)
}
function explosion(pts, x, y, id, t) {
let dy = (t*t*t)*20;
let r = Math.sin(id)*1 + 3
r = t<0.5 ? (t+0.5)*t*r:r-t*r
ctx.fillStyle = `hsl(${id*55}, 55%, 55%)`;
pts.forEach((xy,i) => {
if (i%20 === 0)
ctx.fillStyle = `hsl(${id*55}, 55%, ${55+t*Math.sin(t*55+i)*45}%)`;
circle(t*xy[0] + x, h - y + t*xy[1] + dy, r)
});
}
function circle(x,y,r) {
ctx.beginPath();
ctx.ellipse(x, y, r, r, 0, 0, 6.283);
ctx.fill();
}