原生JS寫鼠標點擊瀏覽器空白處元素移動到點擊位置

時間 2019-11-08

原文原文鏈接

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>鼠標點擊瀏覽器空白處元素移動到點擊位置</title>
    <style>
        div{
            width: 100px;
            height: 100px;
            background: red;
            border-radius: 50px;
            position: absolute;
            top: 0;
            left: 0;
        }
    </style>
</head>
<body>
   <div id="superMan"></div>
    <script>
        let superMan = document.getElementById("superMan");
        let clickX = 0,clickY = 0;
        let leaderX = 0,leaderY = 0;
        document.onclick = function(){
            clickX = event.clientX - superMan.offsetWidth / 2;
            clickY = event.clientY - superMan.offsetHeight / 2;
            console.log(clickX,clickY)
        }

        setInterval(function(){
            leaderX = leaderX + (clickX - leaderX) / 10;
            leaderY = leaderY + (clickY - leaderY) / 10;
            superMan.style.top = leaderY + "px";
            superMan.style.left = leaderX + "px";
            if(clickX < superMan.offsetWidth / 2 ){
                clickX = 0;
                
            }if(clickY < superMan.offsetHeight / 2){
                clickY = 0;
            }
        },10)
    </script>
</body>
</html>

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