Very beautiful JS image arrangement and rotation effect code_image special effects

After reading the code, I feel that using array simulation is a bit stiff, so I re-wrote it myself, please come and pp!

]<script> var r=200,dv=0.01,w=100,x=400;y=100,pn=8 var pi=3.1415926575,d=pi/2; var pd=Math.asin(w/2/r);ed=pi*2/pn;smove=true function window.onload(){ var o=document.getElementById("imground"); var arrimg=o.getElementsByTagName("img"); for (n=0;n<arrimg.length;n++){ arrimg[n].onmouseout=function(){smove=true;} arrimg[n].onmouseover=function(){smove=false;} arrimg[n].onmousedown=function(){dv=dv*2} } setInterval(roundMove,20); } function roundMove(){ for (n=1;n<=8;n++){ var o=document.getElementById("p"+n) var ta=Math.sin(d+ed*n); var strFilter; if (ta<0) o.style.left=Math.cos(d+ed*n-pd)*r+x; else o.style.left=Math.cos(d+ed*n+pd)*r+x; o.style.top=ta*10+10+y; o.style.width=Math.abs(Math.cos(d+ed*n+pd)-Math.cos(d+ed*n-pd))*r; o.style.zIndex=ta*10; if (o.style.zIndex<0) strFilter="FlipH(enabled:true)" else strFilter="FlipH(enabled:false)"; if (ta<0) ta=(ta+1)*80+20; else ta=100; strFilter=strFilter+" alpha(opacity="+ta+")"; o.style.opacity=ta/100; o.style.filter=strFilter; } if (smove) d=d+dv; } </script>