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我是新來的閃光燈，一直在寫一個帶有兩個擴展MovieClip（Stems and Star）的類的程序。從一個班級內添加孩子到場景
當用戶停止拖動Star對象，但不知道如何從Star類的代碼中引用場景時，我需要創建一個新的Stems對象作爲場景的子節點。
我已經試過路過現場成明星的構造和做sometihng像：
this.scene.addChild (new Stems());
但很顯然，這不是該怎麼辦呢？下面是莖和星光的代碼，任何建議將不勝感激。
package {
import flash.display.MovieClip;
import flash.events.*;
import flash.utils.Timer;
public class Stems extends MovieClip {
public const centreX=1026/2;
public const centreY=600/2;
public var isFlowing:Boolean;
public var flowerType:Number;
public const outerLimit=210;
public const innerLimit=100;
public function Stems(fType:Number) {
this.isFlowing=false;
this.scaleX=this.scaleY= .0007* distanceFromCentre(this.x, this.y);
this.setXY();
trace(distanceFromCentre(this.x, this.y));
if (fType==2) {
gotoAndStop("Aplant");
}
}
public function distanceFromCentre(X:Number, Y:Number):int {
return (Math.sqrt((X-centreX)*(X-centreX)+(Y-centreY)*(Y-centreY)));
}
public function rotateAwayFromCentre():void {
var theX:int=centreX-this.x;
var theY:int = (centreY - this.y) * -1;
var angle = Math.atan(theY/theX)/(Math.PI/180);
if (theX<0) {
angle+=180;
}
if (theX>=0&&theY<0) {
angle+=360;
}
this.rotation = ((angle*-1) + 90)+180;
}
public function setXY() {
do {
var tempX=Math.random()*centreX*2;
var tempY=Math.random()*centreY*2;
} while (distanceFromCentre (tempX, tempY)>this.outerLimit ||
distanceFromCentre (tempX, tempY)<this.innerLimit);
this.x=tempX;
this.y=tempY;
rotateAwayFromCentre();
}
public function getFlowerType():Number {
return this.flowerType;
}
}
}
包{ 進口的flash.display.MovieClip; import flash.events。*; import flash.utils.Timer;
public class Star extends MovieClip {
public const sWide=1026;
public const sTall=600;
public var startingX:Number;
public var startingY:Number;
public var starColor:Number;
public var flicker:Timer;
public var canUpdatePos:Boolean=true;
public const innerLimit=280;
public function Star(color:Number, basefl:Number, factorial:Number) {
this.setXY();
this.starColor=color;
this.flicker = new Timer (basefl + factorial * (Math.ceil(100* Math.random())));
this.flicker.addEventListener(TimerEvent.TIMER, this.tick);
this.addEventListener(MouseEvent.MOUSE_OVER, this.hover);
this.addEventListener(MouseEvent.MOUSE_UP, this.drop);
this.addEventListener(MouseEvent.MOUSE_DOWN, this.drag);
this.addChild (new Stems (2));
this.flicker.start();
this.updateAnimation(0, false);
}
public function distanceOK(X:Number, Y:Number):Boolean {
if (Math.sqrt((X-(sWide/2))*(X-(sWide/2))+(Y-(sTall/2))*(Y-(sTall/2)))>innerLimit) {
return true;
} else {
return false;
}
}
public function setXY() {
do {
var tempX=this.x=Math.random()*sWide;
var tempY=this.y=Math.random()*sTall;
} while (distanceOK (tempX, tempY)==false);
this.startingX=tempX;
this.startingY=tempY;
}
public function tick(event:TimerEvent) {
if (this.canUpdatePos) {
this.setXY();
}
this.updateAnimation(0, false);
this.updateAnimation(this.starColor, false);
}
public function updateAnimation(color:Number, bright:Boolean) {
var brightStr:String;
if (bright) {
brightStr="bright";
} else {
brightStr="low";
}
switch (color) {
case 0 :
this.gotoAndStop("none");
break;
case 1 :
this.gotoAndStop("N" + brightStr);
break;
case 2 :
this.gotoAndStop("A" + brightStr);
break;
case 3 :
this.gotoAndStop("F" + brightStr);
break;
case 4 :
this.gotoAndStop("E" + brightStr);
break;
case 5 :
this.gotoAndStop("S" + brightStr);
break;
}
}
public function hover(event:MouseEvent):void {
this.updateAnimation(this.starColor, true);
this.canUpdatePos=false;
}
public function drop(event:MouseEvent):void {
this.stopDrag();
this.x=this.startingX;
this.y=this.startingY;
this.updateAnimation(0, false);
this.canUpdatePos=true;
}
public function drag(event:MouseEvent):void {
this.startDrag(false);
this.canUpdatePos=false;
}
}
}