Home >Web Front-end >JS Tutorial >JS implementation of multiple colored balls following the mouse movement example code

JS implementation of multiple colored balls following the mouse movement example code

小云云Original: 2018-02-02 10:08:561804browse

This article mainly shares with you the JS example code to implement multiple colored balls to follow the movement of the mouse. The implementation method: each ball has its own coordinates. When the ball moves, the coordinates need to be transferred. The first The coordinates are passed to the last coordinate in turn to achieve the effect of the ball moving with it.

Implementation code:

<!DOCTYPE html>
<html>
 <head>
  <meta charset="UTF-8">
  <title>小球运动</title>
  <style type="text/css">
   p {
    border-radius: 50%;
    width: 30px;
    height: 30px;
    position: absolute;
    text-align: center;
    line-height: 30px;
    color: white;
   }
  </style>
 </head>
 <body>
 </body>
 <script type="text/javascript">
  //创建数组存储所有的小球
  var balls = [];
  //创建小球函数
  function createballs(){
   for (var i = 0;i < 60;i++) {
    var ball = document.createElement("p");
     ball.innerHTML = i + 1;
     ball.style.backgroundColor = randomColor();
    //将创建的小球存储到数组中
    document.body.appendChild( ball);
    //将所有的小球存在数组中
     balls.push( ball);
   }
  }
  createballs();
  //随机函数
  function randomNum(m, n) {
   return Math.floor(Math.random() * (n - m + 1) + m);
  }
  //随机颜色
  function randomColor() {
   return "rgb(" + randomNum(0, 255) + "," + randomNum(0, 255) + "," + randomNum(0, 255) + ")";
  }
  document.onmousemove = function(e){
   var eventObj = e || event;
   for(var i = balls.length - 1;i > 0;i--){
    //将小球的下标通过for循环进行传递
     balls[i].style.left = balls[i - 1].style.left;
     balls[i].style.top= balls[i - 1].style.top;
   }
   //将第一个小球赋值为最新的事件对象中的坐标
    balls[0].style.left = eventObj.clientX + "px";
    balls[0].style.top= eventObj.clientY + "px";
  }
 </script>
</html>

Running effect:

##Related recommendations:

jquery Implementing pictures to follow the movement of the mouse

Explanation on the method of using jQuery to implement divs to follow the movement of the mouse

Using JS to implement bubbles following the mouse movement animation special effects example

The above is the detailed content of JS implementation of multiple colored balls following the mouse movement example code. For more information, please follow other related articles on the PHP Chinese website!

jquery JS

Statement：

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Previous article：What is NW.js and how to use itNext article：What is NW.js and how to use it

See more

JS implementation of multiple colored balls following the mouse movement example code

Related articles