将动画片段的动态实例添加到数组

Question

我试图在数组内添加一个MovieClip实例。 House类内部是一个名为HouseObjects的属性。在这个数组中，我创建了一个Comp和一个Light类。动画片段通过链接动态放置在舞台上。影片剪辑也可以充当“切换按钮”。如果按钮状态为ON，则值为1.如果按钮状态为OFF，则值为0.

如果值为1，我试图在onList Array中添加MovieClip实例。在该数组内部将有所有按钮状态为ON的实例。

我创建了一个名为objSelect的属性。

var objSelect:Object; 

该变量包含currentTarget选定。我试图将它传递给function trackItems，以便根据按钮状态在onList数组中按下/弹出它。

我收到有关此错误的信息： onList.pop（objSelect）; 参数的数量不正确。预计不超过0.1

 public class House extends MovieClip 

    { 

     var HouseObjects:Array = new Array(); 
    var onList:Array = []; // instances added to this array that have a bstatus ON 
     var power:int; // holds value of individual House Objects 
     var bstate:int; // 0 or 1 (ON or OFF) 
     var bstatus:int; 
     var userInput:int; // stores user data (of selected data); 
     //holds value of e.currentTarget.power 

     var currentPower:int; // stores current power 
      var objSelect:Object; 

     public function House() 
     { 
     // Instances are MovieClip "toggle buttons" 
     HouseObjects[0] = new Comp(); // creates instance of Comp 
     HouseObjects[1] = new Light(); // creates instance of Light 
     } 

     function toggleClick(e:MouseEvent) { 
      // go to appropriate frame 
     if (e.currentTarget.currentFrame == 2) 
     { 
     e.currentTarget.gotoAndStop(3); 
     e.currentTarget.bstate = 1; 
     } 

     if (e.currentTarget.currentFrame == 4) 
     { 
     e.currentTarget.gotoAndStop(1); 
     e.currentTarget.bstate = 0; 
     } 

      bstatus = e.currentTarget.bstate; 
      objName = e.currentTarget.name; 

     trackItems(objSelect, bstatus); 


    } // end of function toggle click 



    function trackItems(objSelect:Object, bstatus:int):void 
    { 
    if (bstatus == 0) { 
     // remove objSelect from Array onList 

    } else if (bstatus == 1) { 
     onList.push(objSelect); 
     //add to Array onList  
    } 

} 

// function called when user clicks on update button 
function updateStage():void 
{ 
    for (var i:int = 0; i<=onList.length;i++) { 
    addChild(onList[i]); 
    } 

} 

}

Answer 1

你并不需要环通阵列，以便找到要删除的元素，简单地使用indexOf方法：

 
var index:int = onList.indexOf(objSelect); 
onList.splice(index , 1); 

我建议只加一个对象的名称到onList阵列，它使错误

 
//if the button status is On 
onList.push(objSelect.name); 

//if the button status is Off 
var index:int = onList.indexOf(objSelect.name); 
onList.splice(index , 1); 

比较更直接和更不容易，那么你可以更新这样的阶段：

function updateStage():void 
{ 
    for (var i:int = 0; i<=HouseObjects.length;i++) 
    { 
    //if the onList Array contains the current name 
    if(onList.indexOf(HouseObjects[i].name) != -1) 
      addChild(HouseObjects[i]); 
    } 

} 

Answer 2

http://www.adobe.com/livedocs/flash/9.0/ActionScriptLangRefV3/Array.html#pop%28%29

流行从阵列中删除最后一个元素，如果你想删除特定的元素，使用方法Array.splice与deleteCount == 0，

Answer 3

pop删除数组的最后一项。如果要删除给定的项目，您需要将阵列向上的尾巴在要删除

Answer 4

我的建议元素的位置，移动至使用更先进的集合，如
http://livedocs.adobe.com/flex/3/langref/mx/collections/ArrayCollection.html#methodSummary

这里是修改后的代码：

public class House extends MovieClip 

{ 

    var HouseObjects:Array = new Array(); 
var onList:ArrayCollection = new ArrayCollection(); // instances added to this array that have a bstatus ON 
    var power:int; // holds value of individual House Objects 
    var bstate:int; // 0 or 1 (ON or OFF) 
    var bstatus:int; 
    var userInput:int; // stores user data (of selected data); 
    //holds value of e.currentTarget.power 

    var currentPower:int; // stores current power 

    public function House() 
    { 
    // Instances are MovieClip "toggle buttons" 
    HouseObjects[0] = new Comp(); // creates instance of Comp 
    HouseObjects[1] = new Light(); // creates instance of Light 
    } 

    function toggleClick(e:MouseEvent) { 
     // go to appropriate frame 
    if (e.currentTarget.currentFrame == 2) 
    { 
    e.currentTarget.gotoAndStop(3); 
    e.currentTarget.bstate = 1; 
    } 

    if (e.currentTarget.currentFrame == 4) 
    { 
    e.currentTarget.gotoAndStop(1); 
    e.currentTarget.bstate = 0; 
    } 

     bstatus = e.currentTarget.bstate; 
     objName = e.currentTarget.name; 

    trackItems(objSelect, bstatus); 


    } // end of function toggle click 



    function trackItems(objName:Object, bstatus:int):void 
    { 
    if (bstatus == 0) { 
     onList.removeItemAt(onList.getItemIndex(objName)); 
     // remove from onList 

    } else if (bstatus == 1) { 
     onList.addItem(objName); 
     //add to onList  
    } 

} 

// function called when user clicks on update button 
function updateStage():void 
{ 
    for (var i:int = 0; i<=onList.length;i++) { 
    addChild(onListgetItemAt(i)); 
    } 

} 

Answer 5

创建的认定，需要被移除，并在objSelect通过了该项目的功能。找到项目后，使用splice（）。

function trackItems(objSelect:Object, bstatus:int):void 
{ 
    if (bstatus == 0) { 
     //remove instance from onList array  
     // call function removeArrayItem 
     removeArrayItem(objSelect); 

    } else if (bstatus == 1) { 
     //remove instance from onList array  
     onList.push(objSelect); 
    } 
} 

function removeArrayItem(objSelect:Object):void 
{ 
     var arrayLength:int = onList.length; 

     // Loop through array to find item that needs to be removed 
     for (var i:int=0; i<arrayLength; i++) 
     { 
      if (onList[i] == objSelect) 
      { 
       onList.splice(i, 1); 
      } 
     } 

}