removing object from stage if not exist anymore in array

Question

i want to remove my object out of viewcontainer when i hit my object hit works, removing out of array also, but i doesn't want to remove it from stage. because index in the array is null. ok but how do you remove it then?

thanks

private function enemySpawnen():void
{
var enemyShip:SpaceShip = new SpaceShip();

Enemy[0] = enemyShip;
Enemy[1] = enemyShip;
}

private function renderEnemy(e:Event):void
{
if(Enemy[0] != null){
viewContainer.addChild(Enemy[0]);

Enemy[0].scaleX = 0.5;
Enemy[0].scaleY = 0.5;

Enemy[0].x = 600;
Enemy[0].y = 400;
}
else{
viewContainer.removeChild(Enemy[0]);==> problem
}
}

if(spaceBar){
var kogel:Kogel = new Kogel();
viewContainer.addChild(kogel);

kogel.scaleX = 0.08;
kogel.scaleY = 0.08;

kogel.x = heli.x + (heli.width/2) -225;
kogel.y = heli.y + (heli.height/2) + 30;

kogel.addEventListener(Event.ENTER_FRAME, shoot);
function shoot(e:Event):void
{
kogel.x +=10;

try{
if(kogel.hitTestObject(Enemy[0])){
Enemy.splice(0,1);
}
}
catch(e:Error){

}
}

You else statment with your error will only ever run when the item is null, so it will always throw an error — BadFeelingAboutThis
– BadFeelingAboutThis, Commented Nov 9, 2012 at 17:54
You should removeChild on the line before you splice the array — BadFeelingAboutThis
– BadFeelingAboutThis, Commented Nov 9, 2012 at 17:55
Why are there two copies of this question? stackoverflow.com/questions/13314520/… — CodeMouse92
– CodeMouse92, Commented Nov 9, 2012 at 21:20

BadFeelingAboutThis · Accepted Answer · 2012-11-09 18:46:45Z

0

Your else statment that contains your error will only ever run when the item Enemy[0] is null, so it will always throw an error and is completely unnecessary (you might as well remove the whole else statement)

Enemy[0] is null because you've spliced it out your array. What you need to do is have the line that is throwing the error, before you splice the array.

if(kogel.hitTestObject(Enemy[0])){
    viewContainer.removeChild(Enemy[0])
    Enemy.splice(0,1);
}

Also keep in mind, now that you've spliced the array, the item that used to be Enemy[1] is now referenced by Enemy[0] as your array indicies have shifted.

answered Nov 9, 2012 at 18:46

BadFeelingAboutThis

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