Question

I’m wondering if it is possible to reset / reload / reconstruct an array order?

I’m making this “Space Invaders” game and the enemy’s need to restart to it’s position when the game is being restarted. When I shoot down the enemy’s and reset my game, the enemy’s I’ve killed keep being gone.

So here’s some of the code responsible:

var spiderArray:Array = new Array(enemyField.enemy1,enemyField.enemy2,
                             enemyField.enemy3,enemyField.enemy4,
                             enemyField.enemy5,enemyField.enemy6,
                             enemyField.enemy7,enemyField.enemy8,
                             enemyField.enemy9,enemyField.enemy10,
                             enemyField.enemy11,enemyField.enemy12,
                             enemyField.enemy13,enemyField.enemy14,
                             enemyField.enemy15,enemyField.enemy16,
                             enemyField.enemy17,enemyField.enemy18,
                             enemyField.enemy19,enemyField.enemy20,
                             enemyField.enemy21,enemyField.enemy22,
                             enemyField.enemy23,enemyField.enemy24,
                             enemyField.enemy25,enemyField.enemy26,
                             enemyField.enemy27,enemyField.enemy28,
                             enemyField.enemy29,enemyField.enemy30,
                             enemyField.enemy31,enemyField.enemy32,
                             enemyField.enemy33,enemyField.enemy34,
                             enemyField.enemy35,enemyField.enemy36,
                             enemyField.enemy37,enemyField.enemy38,
                             enemyField.enemy39,enemyField.enemy40,
                             enemyField.enemy41,enemyField.enemy42,
                             enemyField.enemy43,enemyField.enemy44,
                             enemyField.enemy45,enemyField.enemy46,
                             enemyField.enemy47,enemyField.enemy48,
                             enemyField.enemy49,enemyField.enemy50,
                             enemyField.enemy51,enemyField.enemy52,
                             enemyField.enemy53,enemyField.enemy54,
                             enemyField.enemy55,enemyField.enemy56,
                             enemyField.enemy57,enemyField.enemy58,
                             enemyField.enemy59,enemyField.enemy60,
                             enemyField.enemy61,enemyField.enemy62,
                             enemyField.enemy63,enemyField.enemy64,
                             enemyField.enemy65,enemyField.enemy66);

Now the place where the enemy’s are being killed:

function enemyHitTest():void {
//for each of the three spiders
for(var i:int = 0; i < spiderArray.length; i++) {
    //the each of the six bullets
    for(var j:int = 0; j < 6; j++) {
        //don't consider bullets that aren't in play:
        if(bulletArray[j].y > SpelerMC.y) continue;
        if(spiderArray[i].hitTestObject(bulletArray[j])) {
            score += 10;
            scoreTxt.text = score.toString();
            trace("Invader " + i + " neergeschoten!");
            spiderArray[i].parent.removeChild(spiderArray[i]);
            bulletArray[j].x = j * 70 + 100;
            bulletArray[j].y = 595;
        }
    }
}

Now I think I need to put some sort of theArray.pop(); or something, but don’t know how to use it, but I need to place it in this function:

function startGame() {
trace("Start het spel opnieuw...");
gameTimer.addEventListener(TimerEvent.TIMER, onTick);
gameTimer.start();
enemyField.x = 400;
enemyField.y = 160;
SpelerMC.x = 83;
SpelerMC.y = 531;
}

Please help me! Have been searching for 5 hours already.
Thanks in advance!

Answer 1

to remove element number i use array.splice(i, 1); ( http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/Array.html#splice().com/en_US/FlashPlatform/reference/actionscript/3/Array.html#splice%28%29) but keep in mind that array.length will decrease
to reset the array just invoke spidersArray = new Array(enemyField.enemy1, etc) again

UPDATE
in in the enemyHitTest function i changed the removing condition to if(enemyArray[i].visible && enemyArray[i].hitTestObject(laserArray[j])) and enemyArray[i].parent.removeChild(enemyArray[i]); to enemyArray[i].visible = false;
and added

function respawnEnemies():void{
    for(var i:int = 0; i < enemyArray.length; i++) {
        enemyArray[i].visible = true;
    }
}

to call it from startGame

full code here

upd 2
so the problem was not in resetting the array but in the fact that your enemyField and its’ enemies were added to stage manually and removed programmatically so there was no code to call to bring them back