<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>js鼠标控制飞机方向特效 - 更多源码【www.96flw.com】</title>
<style>
body{
margin: 0;
padding: 0;
width: 100%;
background: url(sky.jpg);
}
#fly{
background: url(mes.png);
position: absolute;
top: 50%;
left: 50%;
}
</style>
</head>
<body>
<script>
var fly=document.createElement('div');
fly.id='fly';
fly.style.width='60px';
fly.style.height='60px';
document.body.appendChild(fly);
var skyx=0;
var skyt=0;
var c;
var j;
document.onmousemove=function(e){
var fly=document.getElementById('fly');
var contentx=fly.offsetLeft+fly.offsetWidth/2;
var contenty=fly.offsetTop+fly.offsetHeight/2;
var dx=e.clientX-contentx;
var dt=e.clientY-contenty;
c=Math.atan2(dx,dt);//取值
c=180*c/Math.PI;//转换角度
c=c*-1;//console.log(c);
function to(){//飞机运动
clearTimeout(j);
fly.style.transform='rotate('+c+'deg)';
switch(true){
case c<15&&c>-15://向下飞
skyt-=5;
document.body.style.backgroundPositionY=skyt+'px';
break;
case c>15&&c<75://向左下角飞
skyx+=3;
skyt-=3;
document.body.style.backgroundPositionX=skyx+'px';
document.body.style.backgroundPositionY=skyt+'px';
break;
case c>75&&c<105://向左飞
skyx+=5;
document.body.style.backgroundPositionX=skyx+'px';
break;
case c>105&&c<165://向左上角飞
skyx+=3;
skyt+=3;
document.body.style.backgroundPositionX=skyx+'px';
document.body.style.backgroundPositionY=skyt+'px';
break;
case c>165||c<-165://向上飞
skyt+=5;
document.body.style.backgroundPositionY=skyt+'px';
break;
case c<-15&&c>-75://向右下角飞
skyx-=3;
skyt-=3;
document.body.style.backgroundPositionX=skyx+'px';
document.body.style.backgroundPositionY=skyt+'px';
break;
case c<-75&&c>-105://向右飞
skyx-=5;
document.body.style.backgroundPositionX=skyx+'px';
break;
case c<-105&&c>-165://向右上角飞
skyx-=3;
skyt+=3;
document.body.style.backgroundPositionX=skyx+'px';
document.body.style.backgroundPositionY=skyt+'px';
break;
}
j=setTimeout(to,10);
}
to();
}
</script>
<div style="text-align:center;margin:50px 0; font:normal 14px/24px 'MicroSoft YaHei';color:#ffffff">
<p>适用浏览器：360、FireFox、Chrome、Opera、傲游、搜狗、世界之窗. 不支持Safari、IE8及以下浏览器。</p>
<p>更多源码<a href="http://www.96flw.com" target="_blank">www.96flw.com</a></p>
</div>
</body>
</html>
