效果很玄flash action script，代码却很简单。

大致代码如下：

onClipEvent (load) {

x=0 //where the dot is

y=0 //where the dot is

xmove=0 //it’s movement

ymove=0 //it’s movement

}

onClipEvent (enterFrame) {

xmove+= (_root._xmouse-_x-x)/10 //math

ymove+= (_root._ymouse-_y-y)/10 //math

x+=xmove+(_root._xmouse-_x-x)/10 //math

y+=ymove+(_root._ymouse-_y-y)/10 //math

clear()

lineStyle(1,000000,100)

moveTo(oldx,oldy)

lineTo(x,y)

oldx=x //this is so that in the next frame it knows where the dot was last frame

oldy=y //this is so that in the next frame it knows where the dot was last frame

_rotation– //This is negative on two of the movieclips (that initially have an opposite rotation to eachother), and positive on the other two.

}