动作的孩子中3的addChild并清除第一个孩子

Question

好了，所以这里是设置：

在主时间轴我有一个菜单，这是一个MovieClip。该菜单由大约17个“按钮”组成，每个按钮指向站点的不同部分。点击一个“按钮”（2个示例：menu_bag_button，menu_trashbag_button），菜单将动画，向左移动，并且2个库项目（bag_container和close_btn）应显示在“framecontainer”的右侧。

然后，当菜单在左边时，这个特定的按钮不能重复菜单动画，因此我做了一个if语句来查找它所在的框架，如果它在左边，它只是清除framecontainer和再次加载内容。

问题是，当单击另一个链接时，它需要执行以下两件事之一：如果菜单位于未加载内容的中央，则需要将菜单右侧设置为动画，并将内容/ close_btn放入“framecontainer”;或者，如果菜单位于左侧，则需要清除“framecontainer”并加载相应的内容。我尝试了很多东西，但由于所有这些按钮都在“menu_mc”中，动作必须指向根，然后才能指向“framecontainer”，一切都会变得复杂。

如果有一个快速，更好的方法来做到这一点，而不需要我编码几个小时，那将是非常棒的，否则我现在必须坚持这种复杂的方式。

这是我目前的代码。它的功能很好，除了它不明确内容的事实，所以它继续让一个被关闭加载框架，还有它背后的其它内容：

import flash.display.*; 
import fl.transitions.*; 
import flash.events.MouseEvent; 

//Stopping on this frame (805) so the menu will be in place to interact with 
stop(); 

//framecontainer location/size for the content to be loaded. 
//Not sure if the parameters below it are absolutely necessary. 
var framecontainer:MovieClip = new MovieClip(); 
framecontainer.width = 450; 
framecontainer.height = 450; 
framecontainer.x = 450; 
framecontainer.y = 0; 

//adding the framecontainer so that the content can be loaded into it. 
//again, not sure if this is necessary yet 
MovieClip(root).addChild(framecontainer); 




//FIRST MENU ITEM, "BAG" 
//If we can get the framecontainer to work, I don't think I'll have to create 
//a custom closeBtn for each and every link. I'll be able to just use a generic 
//closeBtn and have it clear the framecontainer and continue the animation. 

var closebagBtn:close_btn = new close_btn(); 
closebagBtn.x = 0; 
closebagBtn.y = 0; 

var bagFrame:MovieClip = new bag_frame_mc(); 
bagFrame.x = 900; 
bagFrame.y = 0; 


menu_bag_button.addEventListener(MouseEvent.MOUSE_UP, bagClick); 
function bagClick(event:MouseEvent):void{ 
    if(MovieClip(root).currentFrame == 850) { 
// the next line does nothing, but it's supposed to clear 
MovieClip(root).framecontainer.clear(); 
} 
//Below, I need to add bagFrame and closebagBtn into framecontainer, 
//but I don't know how. Tried adding ".framecontainer" in front of addchild 
//but got error saying that bagClick (function above) is undefined. 
else { 
MovieClip(root).addChild (bagFrame); 
MovieClip(root).addChild (closebagBtn); 
MovieClip(root).gotoAndPlay(806); 
} 
} 
closebagBtn.addEventListener(MouseEvent.MOUSE_UP, bagClose); 
function bagClose (event:MouseEvent):void{ 
MovieClip(root).removeChild(bagFrame); 
MovieClip(root).removeChild(closebagBtn); 
MovieClip(root).gotoAndPlay(850); 
} 





//SECOND MENU ITEM, "TRASHBAG" 

var closetrashbagBtn:close_btn = new close_btn(); 
closetrashbagBtn.x = 0; 
closetrashbagBtn.y = 0; 

var trashbagFrame:MovieClip = new trashbag_frame_mc(); 
trashbagFrame.x = 900; 
trashbagFrame.y = 0; 

menu_trashbag_button.addEventListener(MouseEvent.MOUSE_UP, trashbagClick); 
function trashbagClick(event:MouseEvent):void{ 
    if(MovieClip(root).currentFrame == 850) { 
// the next line does nothing, but it's supposed to clear 
MovieClip(root).framecontainer.clear(); 
} 
//Below, I need to add trashbagFrame and closebagBtn into framecontainer, 
//but I don't know how. Tried adding ".framecontainer" in front of addchild 
//but got error saying that bagClick (function above) is undefined. 
else { 
} 
else { 
MovieClip(root).addChild (trashbagFrame); 
MovieClip(root).addChild (closetrashbagBtn); 
MovieClip(root).gotoAndPlay(806); 
} 
} 
closetrashbagBtn.addEventListener(MouseEvent.MOUSE_UP, trashbagClose); 
function trashbagClose (event:MouseEvent):void{ 
MovieClip(root).removeChild(trashbagFrame); 
MovieClip(root).removeChild(closetrashbagBtn); 
MovieClip(root).gotoAndPlay(850); 
} 

/////// ////////////////////////////////////////////////// ///// 新的，功能代码（需要帮助精炼）：

import flash.display.*; 
import fl.transitions.*; 
import flash.events.MouseEvent; 

stop(); 

var menuList:Array = [menu_bag, menu_chips, menu_coke, menu_cup, menu_deodorant, menu_fork, menu_knife, menu_lighter, menu_milk, menu_pill, menu_rings, menu_shampoo, menu_spoon, menu_straw, menu_toothbrush, menu_trashbag, menu_water]; 



var closeBtn:close_btn = new close_btn(); 
closeBtn.x = 0; 
closeBtn.y = 0; 

closeBtn.addEventListener(MouseEvent.MOUSE_UP, contentClose); 
function contentClose (event:MouseEvent):void{ 
    while(MovieClip(root).numChildren > 1) 
    { 
     MovieClip(root).removeChild(MovieClip(root).getChildAt(MovieClip(root).numChildren - 1)); 
    } 
MovieClip(root).gotoAndPlay(850); 
} 




var bagFrame:MovieClip = new bag_frame_mc(); 
bagFrame.x = 900; 
bagFrame.y = 0; 

menu_bag.addEventListener(MouseEvent.MOUSE_UP, bagClick); 
function bagClick(event:MouseEvent):void{ 
    if(MovieClip(root).currentFrame == 850) { 
    while(MovieClip(root).numChildren > 1) 
    { 
     MovieClip(root).removeChild(MovieClip(root).getChildAt(MovieClip(root).numChildren - 1)); 
    } 
MovieClip(root).addChild (bagFrame); 
MovieClip(root).addChild (closeBtn); 
} 
else { 
MovieClip(root).addChild (bagFrame); 
MovieClip(root).addChild (closeBtn); 
MovieClip(root).gotoAndPlay(806); 
} 
} 

var trashbagFrame:MovieClip = new trashbag_frame_mc(); 
trashbagFrame.x = 900; 
trashbagFrame.y = 0; 

menu_trashbag.addEventListener(MouseEvent.MOUSE_UP, trashbagClick); 
function trashbagClick(event:MouseEvent):void{ 
    if(MovieClip(root).currentFrame == 850) { 
    while(MovieClip(root).numChildren > 1) 
    { 
     MovieClip(root).removeChild(MovieClip(root).getChildAt(MovieClip(root).numChildren - 1)); 
    } 
MovieClip(root).addChild (trashbagFrame); 
MovieClip(root).addChild (closeBtn); 
} 
else { 
MovieClip(root).addChild (trashbagFrame); 
MovieClip(root).addChild (closeBtn); 
MovieClip(root).gotoAndPlay(806); 
} 
} 

Answer 1

首先，我真的希望这不是“时间线”的代码！我希望这个代码在课堂上。

其次，我真的不喜欢使用“root”的想法。如果你打算不止一次地使用它，你可以为它创建一个新的变量，输入为动画片段，并引用它，而不是总是将它转换为动画片段。例如

var target:MovieClip = root as MovieClip; 
target.addChild(container); 

如果这个代码是在主时间轴上，那么你甚至不需要引用根（但它似乎并不像它）。

要回答你的问题实际...

没有与这些行一个问题：

MovieClip(root).addchild (container); 
MovieClip(root).container.addChild (bagLink); 
MovieClip(root).addChild (closeBtn); 
MovieClip(root).gotoAndPlay(806); 

的问题是，当你说影片剪辑（根）.addchild（容器）;，您正在将容器变量的“内容”添加为根的子项。 var容器的内容并不知道你称之为“容器”，所以你不能说MovieClip（root）.container。

但是你可以说：

container.addChild(bagLink); 

由于VAR容器指向容器影片剪辑。