將動畫片段的動態實例添加到數組

Question

我試圖在數組內添加一個MovieClip實例。 House類內部是一個名爲HouseObjects的屬性。在這個數組中，我創建了一個Comp和一個Light類。動畫片段通過鏈接動態放置在舞臺上。影片剪輯也可以充當「切換按鈕」。如果按鈕狀態爲ON，則值爲1.如果按鈕狀態爲OFF，則值爲0.

如果值爲1，我試圖在onList Array中添加MovieClip實例。在該數組內部將有所有按鈕狀態爲ON的實例。

我創建了一個名爲objSelect的屬性。

var objSelect:Object; 

該變量包含currentTarget選定。我試圖將它傳遞給function trackItems，以便根據按鈕狀態在onList數組中按下/彈出它。

我收到有關此錯誤的信息： onList.pop（objSelect）; 參數的數量不正確。預計不超過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

你並不需要環通陣列，以便找到要刪除的元素，簡單地使用indexOf方法：

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

我建議只加一個對象的名稱到onList陣列，它使錯誤

 
//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); 

比較更直接和更不容易，那麼你可以更新這樣的階段：

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

流行從陣列中刪除最後一個元素，如果你想刪除特定的元素，使用方法Array.splice與deleteCount == 0，

Answer 3

pop刪除數組的最後一項。如果要刪除給定的項目，您需要將陣列向上的尾巴在要刪除

Answer 4

我的建議元素的位置，移動至使用更先進的集合，如
http://livedocs.adobe.com/flex/3/langref/mx/collections/ArrayCollection.html#methodSummary

這裏是修改後的代碼：

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

創建的認定，需要被移除，並在objSelect通過了該項目的功能。找到項目後，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); 
      } 
     } 

}