在本篇技术博客中,我们将学习如何创建一个令人赞叹的科技感粒子特效网页。这个特效网页将会展示一个动态的、精美的粒子效果,同时会随着鼠标的移动而产生连线效果,增添一份炫酷的科技氛围。我们将使用HTML、CSS和JavaScript来实现这个效果。
HTML5粒子连接
首先,我们来看一下HTML结构。代码中只有一个<canvas>
元素,这是我们用来绘制粒子特效的画布。我们也可以通过给<canvas>
元素设置背景图片来增加更多的效果。
<!DOCTYPE html>
<html>
<head>
<title>科技感粒子特效网页</title>
<style>
body {
margin: 0;
overflow: hidden;
}
canvas {
display: block;
background-image: url("your_background_image_url.jpg"); /* 替换成你自己的背景图片URL */
background-size: cover;
}
</style>
</head>
<body>
<canvas id="myCanvas"></canvas>
<script>
// JavaScript 代码将在这里添加
</script>
</body>
</html>
现在,让我们来详细解析JavaScript代码部分。这里使用了<script>
标签将JavaScript代码嵌入到HTML中。代码的主要功能包括:
<script>
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
const width = window.innerWidth;
const height = window.innerHeight;
canvas.width = width;
canvas.height = height;
const particles = [];
const connections = [];
const particleCount = 300; // 粒子数量
const particleSpeed = 1; // 粒子移动速度
const particleSize = 2; // 粒子大小
const maxDistance = 100; // 粒子连线的最大距离
const lightningColor = "#fff"; // 粒子连线的颜色
// 创建粒子类
class Particle {
constructor() {
this.x = Math.random() * width;
this.y = Math.random() * height;
this.color = "#fff";
this.angle = Math.random() * 360;
this.speed = Math.random() * particleSpeed;
this.opacity = Math.random() * 0.5 + 0.5;
}
update() {
this.x += Math.cos(this.angle) * this.speed;
this.y += Math.sin(this.angle) * this.speed;
// 如果粒子超出画布范围,则重新随机设置位置
if (this.x < 0 || this.x > width || this.y < 0 || this.y > height) {
this.x = Math.random() * width;
this.y = Math.random() * height;
}
}
draw() {
ctx.beginPath();
ctx.arc(this.x, this.y, particleSize, 0, Math.PI * 2);
ctx.fillStyle = `rgba(255, 255, 255, ${this.opacity})`;
ctx.fill();
}
}
// 创建粒子数组
function createParticles() {
for (let i = 0; i < particleCount; i++) {
particles.push(new Particle());
}
}
// 绘制粒子之间的连线
function drawConnections() {
for (let i = 0; i < particles.length; i++) {
for (let j = i + 1; j < particles.length; j++) {
const dx = particles[i].x - particles[j].x;
const dy = particles[i].y - particles[j].y;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance < maxDistance) {
ctx.beginPath();
ctx.moveTo(particles[i].x, particles[i].y);
ctx.lineTo(particles[j].x, particles[j].y);
ctx.strokeStyle = lightningColor;
ctx.lineWidth = 0.2 * (1 - distance / maxDistance);
ctx.stroke();
ctx.closePath();
}
}
}
}
// 动画循环
function animate() {
ctx.clearRect(0, 0, width, height);
for (const particle of particles) {
particle.update();
particle.draw();
}
drawConnections();
requestAnimationFrame(animate);
}
// 监听鼠标移动事件,根据鼠标位置更新粒子运动状态
document.addEventListener("mousemove", (e) => {
const mouseX = e.clientX;
const mouseY = e.clientY;
for (const particle of particles) {
const dx = mouseX - particle.x;
const dy = mouseY - particle.y;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance < maxDistance) {
particle.angle = Math.atan2(dy, dx);
particle.speed = 5;
} else {
particle.speed = Math.random() * particleSpeed;
}
}
});
// 初始化粒子数组并启动动画
createParticles();
animate();
</script>
<!DOCTYPE html>
<html>
<head>
<title>科技感粒子特效网页</title>
<style>
body {
margin: 0;
overflow: hidden;
}
canvas {
display: block;
background-image: url("your_background_image_url.jpg");
background-size: cover;
}
</style>
</head>
<body>
<canvas id="myCanvas"></canvas>
<script>
const canvas = document.getElementById("myCanvas");
const ctx = canvas.getContext("2d");
const width = window.innerWidth;
const height = window.innerHeight;
canvas.width = width;
canvas.height = height;
const particles = [];
const connections = [];
const particleCount = 300;
const particleSpeed = 1;
const particleSize = 2;
const maxDistance = 100;
const lightningColor = "#fff";
class Particle {
constructor() {
this.x = Math.random() * width;
this.y = Math.random() * height;
this.color = "#fff";
this.angle = Math.random() * 360;
this.speed = Math.random() * particleSpeed;
this.opacity = Math.random() * 0.5 + 0.5;
}
update() {
this.x += Math.cos(this.angle) * this.speed;
this.y += Math.sin(this.angle) * this.speed;
if (this.x < 0 || this.x > width || this.y < 0 || this.y > height) {
this.x = Math.random() * width;
this.y = Math.random() * height;
}
}
draw() {
ctx.beginPath();
ctx.arc(this.x, this.y, particleSize, 0, Math.PI * 2);
ctx.fillStyle = `rgba(255, 255, 255, ${this.opacity})`;
ctx.fill();
}
}
function createParticles() {
for (let i = 0; i < particleCount; i++) {
particles.push(new Particle());
}
}
function drawConnections() {
for (let i = 0; i < particles.length; i++) {
for (let j = i + 1; j < particles.length; j++) {
const dx = particles[i].x - particles[j].x;
const dy = particles[i].y - particles[j].y;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance < maxDistance) {
ctx.beginPath();
ctx.moveTo(particles[i].x, particles[i].y);
ctx.lineTo(particles[j].x, particles[j].y);
ctx.strokeStyle = lightningColor;
ctx.lineWidth = 0.2 * (1 - distance / maxDistance);
ctx.stroke();
ctx.closePath();
}
}
}
}
function animate() {
ctx.clearRect(0, 0, width, height);
for (const particle of particles) {
particle.update();
particle.draw();
}
drawConnections();
requestAnimationFrame(animate);
}
document.addEventListener("mousemove", (e) => {
const mouseX = e.clientX;
const mouseY = e.clientY;
for (const particle of particles) {
const dx = mouseX - particle.x;
const dy = mouseY - particle.y;
const distance = Math.sqrt(dx * dx + dy * dy);
if (distance < maxDistance) {
particle.angle = Math.atan2(dy, dx);
particle.speed = 5;
} else {
particle.speed = Math.random() * particleSpeed;
}
}
});
createParticles();
animate();
</script>
</body>
</html>
本章的内容就到这里了,觉得对你有帮助的话就支持一下博主把~