special effects - 鼠标点击，自定义 DOM 跟随移动_怎么让鼠标点击线上的任意一块显示的信息不同dom-优快云博客

本文链接：https://blog.youkuaiyun.com/Jie_1997/article/details/125723497

鼠标点击，自定义 DOM 跟随移动

一. 效果图
二. 实现代码

一. 效果图

在这里插入图片描述

二. 实现代码

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>鼠标点击，自定义 DOM 跟随移动</title>
    <style>
        * {
            margin: 0;
            padding: 0;
        }

        html {
            background-color: #c3ecff;
        }

        #box img {
            width: 100px;
            height: 100px;
            position: absolute;
            top: 0;
            left: 0;
        }
    </style>
</head>

<body>
    <div id="box">
        <!-- 相对位置 -->
        <img src="./img.gif" alt="" />
    </div>
</body>
<script>
    //点击移动的dom
    var dom = document.getElementById('box').children[0];
    document.onclick = function (event) {
        var event = event || window.event;
        // console.log(event.clientX,event.clientY);
        targetX = event.clientX - dom.offsetWidth / 2;
        targetY = event.clientY - dom.offsetHeight / 2;
        //防止物体部分在可视区域外,目前仅针对左上，右下未解决
        if (targetX <= dom.offsetWidth / 2) {
            targetX = 0;
        }
        if (targetY <= dom.offsetHeight / 2) {
            targetY = 0;
        }
    }
    //减速运动
    var leaderX = 0, leaderY = 0, targetX = 0, targetY = 0;
    setInterval(function () {
        leaderX = leaderX + (targetX - leaderX) / 10;
        leaderY = leaderY + (targetY - leaderY) / 10;
        dom.style.top = leaderY + 'px';
        dom.style.left = leaderX + 'px';
    }, 10);
</script>

</html>