求一个跟随鼠标游动的鱼的FLASH代码 请高手进

元件1头,连接名为:yt

元件2身,连接名:ys

元件3尾巴,连接名:yz

主场景第1帧代码:

this.attachMovie("yt","xy0",21);

for (i=1;i<21;i++){

if(i == 13){

this.attachMovie("yz","xy"+i,i);

} else {

this.attachMovie("ys","xy"+i,i);

}

cys = eval("xy"+i);

cys._yscale -= i*5;

cys._xscale -= i*5;

}

第2帧代码:

ytx = _xmouse - xy0._x;

yty = _ymouse - xy0._y;

ytz = Math.atan2(yty,ytx)*180/Math.PI;

xy0._rotation = ytz;

xy0._x += ytx/10;

xy0._y += yty/10;

n=21;

while(n>0){

hys = eval("xy"+n);

qys = eval("xy"+(n-1));

ysx = qys._x - hys._x;

ysy = qys._y - hys._y;

ysz = Math.atan2(ysy,ysx)*180/Math.PI;

hys._rotation = ysz;

hys._x = qys._x;

hys._y = qys._y;

n--;

}

第3帧代码:

gotoAndPlay(2);