var num:Number = 8;//小球数量
var radiusX:Number = 118;//小球X间距
var radiusY:Number = 28;//小球Y间距
var centerX:Number = Stage.width / 2;//X的中心位置
var centerY:Number = Stage.height / 2;//Y的中心位置
var speed:Number = 0.05;//速度初始值

for(var i=0;i<num;i++)
{
 var t = this.attachMovie("ball","b"+i,i+1);//复制小球
 t.angle = i * ((Math.PI*2)/num);
 t.onEnterFrame = mover;
}

function mover()//设置小球的移动轨迹、深度等
{
 this._x = Math.cos(this.angle) * radiusX + centerX;
 this._y = Math.sin(this.angle) * radiusY + centerY;
 var s = this._y /(centerY+radiusY);
 this._xscale = this._yscale = s*100;
 this.angle += this._parent.speed;
 this.swapDepths(Math.round(this._xscale) + 100);
}

this.onMouseMove = function()
{
 speed = (this._xmouse-centerX)/1500;
}