flash carrousel autour d'une image centrale

import mx.utils.Delegate;

var numOfItems:Number;
var radiusX:Number = 300;
var radiusY:Number = 60;

var centerX:Number = Stage.width / 2.2;
var centerY:Number = Stage.height / 2;
var speed:Number = 0.1;
var perspective:Number = 100;
var home:MovieClip = this;

var tooltip:MovieClip = this.attachMovie("tooltip","tooltip",10000);
tooltip._alpha = 0;

var xml:XML = new XML();
xml.ignoreWhite = true;

xml.onLoad = function()
{
	var nodes = this.firstChild.childNodes;
	numOfItems = nodes.length;
	for(var i=0;i<numOfItems;i++)
	{
		var t = home.attachMovie("item","item"+i,i+1);
		t.angle = i * ((Math.PI*2)/numOfItems);
		t.onEnterFrame = mover;
		t.toolText = nodes[i].attributes.tooltip;
		t.icon.inner.loadMovie(nodes[i].attributes.image);
		t.r.inner.loadMovie(nodes[i].attributes.image);
		t.icon.onRollOver = over;
		t.icon.onRollOut = out;
		t.icon.onRelease = released;
	}
}

xml.load("icons.xml");

function mover()
{
	this._x = Math.cos(this.angle) * radiusX + centerX;
	this._y = Math.sin(this.angle) * radiusY + centerY;
	var s = (this._y - perspective) /(centerY+radiusY-perspective);
	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)/2500;
}

//créer un clip conteneur
var mc:MovieClip = _root.createEmptyMovieClip("conteneur", 100);
mc._x = 250;
mc._y = 200;
// y attacher le logo, les ptites étincelles et la planete
mc.attachMovie("logo", "logo_inst", 5000);
mc.attachMovie("etincelle", "etincelle", 500,{_x:-500,_y:-500});
mc.attachMovie("planete","planete_inst",200,{_x:40});
i = 1;
mc.onEnterFrame = function() {
 if (i == 50) {
  i = 0;
 }
 //dupliquer les étincelles pour l'effet "trainée"
 var star:MovieClip = _root.conteneur.attachMovie("etincelle", "etincelle"+i, _root.NSD+i);
 //les faires suivre le logo
 star._x = _root.conteneur.logo_inst._x;
 star._y = _root.conteneur.logo_inst._y;
 
 star._xvitesse = Math.random()*15;
 star._yvitesse = Math.random()*4-3;
 star._alpha = 100;
 star.onEnterFrame = function() {
  this._yvitesse += 0.05;
  this._xvitesse = _xvitesse/1.5;
  this._x +=this._xvitesse;
  this._y += this._yvitesse;
  this._alpha -= 1;
  if (this._alpha<=50) {
   removeMovieClip(this);
  }
 };
 i++;
};
// fonction pour créer la trajectoire du logo
var coef = 0;
luneQuiTourne = function () {
 coef += 0.05;
 this._x = 40+Math.cos(coef)*230;
 this._y = 0+Math.sin(coef)*80;
 this._xscale =Math.sin(coef)*100;
 this._yscale =Math.sin(coef)*25+75;
 // là on change les profondeur du logo et des étincelles pour qu'ils aient 
 //l'air de passer derrière la planète
 if (this._y<0) {
 conteneur.planete_inst.swapDepths(6000);
  conteneur.logo_inst.swapDepths(5000);
  _root.NSD=1;
 } else {
  conteneur.planete_inst.swapDepths(400);
  conteneur.logo_inst.swapDepths(5000);
  _root.NSD=7000;
  

 }
};
conteneur.logo_inst.onEnterFrame = luneQuiTourne;

var t = attachMovie("tete", "tete" + depth, 199);
tete.swapDepths(0);