物体停留在舞台顶部并且不会摔倒
我正在使用math.random从舞台顶部随机删除对象。我让它与一个对象一起工作。但是当我想将数字增加到6个对象时，我添加了以下代码：但是我被“卡住了”，舞台顶部的6个对象也是如此。我在这做错了什么？我很感激帮助。
private function bombInit(): void {
roachBombArray = new Array();
for (var i:uint =0; i < numBombs; i++) {
roachBomb= new RoachBomb();
roachBomb.x = Math.random() * stage.stageWidth;
roachBomb.vy = Math.random() * 2 -1;
roachBomb.y = -10;
addChild(roachBomb);
roachBombArray.push(roachBomb);
}
addEventListener(Event.ENTER_FRAME, onEntry);
}
private function onEntry(event:Event):void {
for (var i:uint = 0; i< numBombs; i++) {
var roachBomb = roachBombArray[i];
vy += ay;
roachBombArray[i] += vy;
if (roachBombArray[i] > 620) {
removeChild(roachBombArray[i]);
removeEventListener(Event.ENTER_FRAME, onEntry);
没有找到相关结果
已邀请:
2 个回复
久坡
public class BombDropper extends Sprite { private static const GRAVITY:int = 1; // Set gravity to what you want in pixels/frame^2 private static const BOTTOM_OF_SCREEN:int = 620; private var numBombs:int = 6; private var roachBombArray:Array; // ... constructor and other class stuff here private function bombInit(): void { roachBombArray = new Array(); for (var i:int =0; i < numBombs; ++i) { var roachBomb:RoachBomb = new RoachBomb(); roachBomb.x = Math.random() * stage.stageWidth; roachBomb.vy = Math.random() * 2 -1; roachBomb.y = -10; this.addChild(roachBomb); roachBombArray.push(roachBomb); } this.addEventListener(Event.ENTER_FRAME, onEntry); } private function onEntry(event:Event):void { for each ( var roachBomb:RoachBomb in roachBombArray) { roachBomb.vy += GRAVITY; roachBomb.y += vy; if (roachBomb.y > BOTTOM_OF_SCREEN) { this.removeChild(roachBomb); roachBombArray.splice(roachBombArray.indexOf(roachBomb),1); if (roachBombArray.length == 0) { this.removeEventListener(Event.ENTER_FRAME, onEntry); } } } } }矾醒忻
应该另外，您创建一个局部变量：但你永远不会操纵它。 也许你打算做这样的事情？var roachBomb:RoachBomb = roachBombArray[i]; // I added the type to the local variable roachBomb.vy += ay; roachBomb.y += vy; // Manipulate the local variable if (roachBomb.y > 620) { removeChild(roachBomb); }