今天分享一个粒子动画效果的库 – particles.js

实现源码:

index.html

index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>particles demo</title>
<link rel="stylesheet" href="main.css" />
</head>
<body>
<div id="particles-js"></div>
</body>
</html>
<script type="text/javascript" src="particles.js"></script>
<script type="text/javascript" src="app.js"></script>

main.css

main.css
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* {
margin: 0;
padding: 0;
}

#particles-js {
position: absolute;
width: 100%;
height: 100%;
background-color: #b61924;
background-repeat: no-repeat;
background-size: cover;
background-position: 50% 50%;
}

app.js

app.js
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/* particlesJS.load(@dom-id, @path-json, @callback (optional)); */
particlesJS.load("particles-js", "particles.json");

particles.json

particles.json
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{
"particles": {
"number": {
"value": 80,
"density": {
"enable": true,
"value_area": 800
}
},
"color": {
"value": "#ffffff"
},
"shape": {
"type": "circle",
"stroke": {
"width": 0,
"color": "#000000"
},
"polygon": {
"nb_sides": 5
},
"image": {
"src": "img/github.svg",
"width": 100,
"height": 100
}
},
"opacity": {
"value": 0.5,
"random": false,
"anim": {
"enable": false,
"speed": 1,
"opacity_min": 0.1,
"sync": false
}
},
"size": {
"value": 10,
"random": true,
"anim": {
"enable": false,
"speed": 80,
"size_min": 0.1,
"sync": false
}
},
"line_linked": {
"enable": true,
"distance": 300,
"color": "#ffffff",
"opacity": 0.4,
"width": 2
},
"move": {
"enable": true,
"speed": 12,
"direction": "none",
"random": false,
"straight": false,
"out_mode": "out",
"bounce": false,
"attract": {
"enable": false,
"rotateX": 600,
"rotateY": 1200
}
}
},
"interactivity": {
"detect_on": "canvas",
"events": {
"onhover": {
"enable": false,
"mode": "repulse"
},
"onclick": {
"enable": true,
"mode": "push"
},
"resize": true
},
"modes": {
"grab": {
"distance": 800,
"line_linked": {
"opacity": 1
}
},
"bubble": {
"distance": 800,
"size": 80,
"duration": 2,
"opacity": 0.8,
"speed": 3
},
"repulse": {
"distance": 400,
"duration": 0.4
},
"push": {
"particles_nb": 4
},
"remove": {
"particles_nb": 2
}
}
},
"retina_detect": true
}

实现效果和codepen 的 demo效果类似