Removechild probems.

Question

i've been trying to do something in which when i clicked on a button, it removes one of the child i randomly added. The addChild works fine but not the removeChild. Here's me script :

function randRange(startNum, endNum) {
return Math.floor(startNum +(Math.random()
* (endNum - startNum)));
}

var myBeetle = new beetleBug();

btnADDbeetle.addEventListener(MouseEvent.CLICK,doADDbeetle);
function doADDbeetle(e){
    var myBeetle = new beetleBug();
    myBeetle.x = randRange(0, 800);
    myBeetle.y = randRange(0, 800);
    addChild(myBeetle);

}
btnMINUSbeetle.addEventListener(MouseEvent.CLICK,doMINUSbeetle);
function doMINUSbeetle (e){
    var myBeetle = new beetleBug();
    myBeetle.parent.removeChild(myBeetle);

}

Please help. Thanks.

kglad · Accepted Answer

you're losing your myBeetle reference whenever you add one. and because it looks like you can add more than one before removing, you need some way to maintain references to them all. one way to do that is to use an array to store your references.

var beetleA:Array=[];
function randRange(startNum, endNum) {
   return Math.floor(startNum +(Math.random()
                        * (endNum - startNum)));
}
var myBeetle = new beetleBug();
beetleA.push(myBeele);
btnADDbeetle.addEventListener(MouseEvent.CLICK,doADDbeetle);
function doADDbeetle(e){
    var myBeetle = new beetleBug();
beetleA.push(myBeetle);
    myBeetle.x = randRange(0, 800);
    myBeetle.y = randRange(0, 800);
    addChild(myBeetle);
}
btnMINUSbeetle.addEventListener(MouseEvent.CLICK,doMINUSbeetle);
function doMINUSbeetle (e){
    var myBeetle = beetleA.pop();
    myBeetle.parent.removeChild(myBeetle);

}
Please help. Thanks.

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