如何在jquery中跟踪鼠标动画 [英] how to animate following the mouse in jquery
问题描述
好的,这对于跟随我的鼠标非常合适。
OK, this works perfectly fine for following my mouse.
//
$(document).mousemove(function(e){
$("#follower").css({
'top': e.pageY + 'px';
'left': e.pageX + 'px';
});
});
//
这对于将鼠标设置为点击点非常有用
And this works great for animating the mouse to a clicked point
//
$(document).click(function(e){
$("#follower").animate({
top: e.pageY + 'px';
left: e.pageX + 'px';
}, 800);
});
//
但我个人觉得从逻辑上说这应该有效!来自我的观点作为webscripter。 Amd然后我的问题是,我怎么能做这个工作。我希望#follower能够尝试跟随我的鼠标,带来一种动态的落后感觉。
But I personally feel that logically this SHOULD work! Coming from my point of view as the webscripter. Amd then my question is, how can I make this work. I want the #follower to try and follow my mouse with a dynamic kind of lagging behind feel.
//
$(document).mousemove(function(e){
$("#follower").animate({
top: e.pageY + 'px';
left: e.pageX + 'px';
}, 800);
});
//
推荐答案
如何使用setInterval和一个叫做zeno悖论的公式:
How about using setInterval and an equation called zeno's paradox:
这就是我通常的做法。
根据要求,我已将代码包含在此答案中。鉴于具有绝对定位的div:
As requested, I've included the code in this answer. Given a div with absolute positioning:
CSS:
#follower{
position : absolute;
background-color : red;
color : white;
padding : 10px;
}
HTML:
<div id="follower">Move your mouse</div>
JS w / jQuery:
JS w/jQuery:
var mouseX = 0, mouseY = 0;
$(document).mousemove(function(e){
mouseX = e.pageX;
mouseY = e.pageY;
});
// cache the selector
var follower = $("#follower");
var xp = 0, yp = 0;
var loop = setInterval(function(){
// change 12 to alter damping, higher is slower
xp += (mouseX - xp) / 12;
yp += (mouseY - yp) / 12;
follower.css({left:xp, top:yp});
}, 30);
这篇关于如何在jquery中跟踪鼠标动画的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!