原生js编写网格磁性鼠标跟随效果-html代码-BFW代码库

原生js编写网格磁性鼠标跟随效果

代码语言：html

所属分类：背景

代码描述：原生js编写网格磁性鼠标跟随效果

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">

<style>
* {
  margin: 0;
  padding: 0;
  color: #FFF;
}

canvas#canvas {
  display: block;
  background: #000;
}

ul#navigation {
  position: absolute;
  height: 100%;
  top: 0;
  right: 0;
  text-align: center;
  margin-right: 1.6rem;
  font-size: 0.8rem;
  -webkit-writing-mode: vertical-rl;
      -ms-writing-mode: tb-rl;
          writing-mode: vertical-rl;
}

ul#navigation > li {
  display: inline-block;
}
</style>

</head>
<body translate="no">
<canvas id="canvas">Canvas not supported.</canvas>
<ul id="navigation">
<li>Please keep moving the mouse.</li>
</ul>

<script>
(function () {
  'use strict';
  window.addEventListener('load', function () {
    var canvas = document.getElementById('canvas');

    if (!canvas || !canvas.getContext) {
      return false;
    }

    /********************
        Random Number
      ********************/

    function rand(min, max) {
      return Math.floor(Math.random() * (max - min + 1) + min);
    }

    /********************
        Var
      ********************/

    var ctx = canvas.getContext('2d');
    var X = canvas.width = window.innerWidth;
    var Y = canvas.height = window.innerHeight;
    var mouseX = null;
    var mouseY = null;
    var dist = 80;
    var lessThan = Math.sqrt(dist * dist + dist * dist);
    var mouseDist = 150;
    var shapeNum;
    var shapes = [];
    var ease = 0.3;
    var friction = 0.9;
    var lineWidth = 5;
    X > Y ? shapeNum = X / dist : shapeNum = Y / dist;

    if (X < 768) {
      lineWidth = 2;
      dist = 40;
      lessThan = Math.sqrt(dist * dist + dist * dist);
      mouseDist = 50;
      X > Y ? shapeNum = X / dist : shapeNum = Y / dist;
    }

    /********************
        Animation
      ********************/

    window.requestAnimationFrame =
    window.requestAnimationFrame ||
    window.mozRequestAnimationFrame ||
    window.webkitRequestAnimationFrame ||
    window.msRequestAnimationFrame ||
    function (cb) {
      setTimeout(cb, 17);
    };

    /********************
         Shape
       ********************/

    function Shape(ctx, x, y, i) {
      this.ctx = ctx;
      this.init(x, y, i);
    }

    Shape.prototype.init = function (x, y, i) {
      this.x = x;
      this.y = y;
      this.xi = x;
      this.yi = y;
      this.i = i;
      this.r = 1;
      this.v = {
        x: 0,
        y: 0 };

      this.c = rand(0, 360);
    };

    Shape.prototype.draw = function () {
      var ctx = this.ctx;
      ctx.save();
      ctx.fillStyle = 'hsl(' + this.c + ', ' + '80%, 60%)';
      ctx.beginPath();
      ctx.arc(this.x, this.y, this.r, 0, Math.PI * 2, false);
      ctx.fill();
      ctx.restore();
    };

    Shape.prototype.mouseDist = function () {
      var x = mouseX - this.x;
      var y = mouseY - this.y;
      var d = x * x + y * y;
      var dist = Math.sqrt(d);
      if (dist < mouseDist) {
        this.v.x = +this.v.x;
        this.v.y = +this.v.y;
        var colAngle = M.........完整代码请登录后点击上方下载按钮下载查看