<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> div { width: 50px; height: 50px; background-color: deepskyblue; position: absolute; border: 2px solid #656565; } </style> <script src="https://www.jb51.net/js/Method.js"></script> </head> <body> <div></div> <script> var elem; var state=0;//当前的状态 初始0——拖动录制1——回放2 var arr=[];//存放我们的行走路径的 数组 var list=[];//存放我们的行走路径的 数组 var index=0; init(); function init() { elem=document.querySelector("div"); Method.dragElem(elem); elem.addEventListener("mousedown",mouseHandler); elem.addEventListener("mouseup",mouseHandler); setInterval(animation,16); } function mouseHandler(e) {//当前的状态 初始0——拖动录制1——回放2 if(e.type==="mousedown"){//鼠标按下 state=1; }else if(e.type==="mouseup"){//鼠标抬起 createElemShadow(); state=2; } } function createElemShadow() { var bool=false; if(list.length===0) bool=true; for(var i=0;i<5;i++){ if(bool)list.push(elem.cloneNode(false)); list[i].style.opacity=1-i*0.2; document.body.appendChild(list[i]) } } function animation() { if(!state) return; if(state===1){ record(); }else if(state===2){ play(); } } function record() { var rect=elem.getBoundingClientRect(); arr.push({x:rect.x,y:rect.y}); } function play() { /* if(index>=arr.length-1){ state=0; return; }*/ index++; var point=arr[index]; if(point){ elem.style.left=point.x+"px"; elem.style.top=point.y+"px"; elem.style.backgroundColor=Method.divColor(); } var bool=false; for(var i=0;i<list.length;i++){ if(!arr[index-i*2]) continue; list[i].style.left=arr[index-i*2].x+"px"; list[i].style.top=arr[index-i*2].y+"px"; list[i].style.backgroundColor=Method.divColor(); bool=true; } if(!bool){ state=0; for(var j=0;j<list.length;j++){ list[j].remove(); } } } </script> </body> </html>
js实现div色块拖动录制
内容版权声明：除非注明，否则皆为本站原创文章。
转载注明出处：http://www.heiqu.com/e529ce9028f1b2973510273c00c4a397.html