Question

所以我正在尝试制作一个游戏，其中有一个物体从中间落下，如果它是好的，你必须在左边拖动它，如果它是坏的话。

我现在遇到的问题是我不知道程序如何知道对象是好还是坏。我认为。

我收到一个错误：错误＃1006：removeChild不是函数。

我是flash的新手，如果你有提示或其他什么，请分享！

http://pastebin.com/AnpN6tEy import flash.events.Event;

var tray:Array = new Array(Legal2_1,Legal2_2,Legal2_3,Legal2_4,Legal2_5,Legal2_6,Legal2_7,Legal2_8,Legal2_9,Legal2_10,Legal2_11,Legal2_12,Legal2_13,Legal2_14,Legal2_15,Illegal2_1,Illegal2_2,Illegal2_3,Illegal2_4,Illegal2_5,Illegal2_6,Illegal2_7,Illegal2_8,Illegal2_9,Illegal2_10,Illegal2_11,Illegal2_12,Illegal2_13,Illegal2_14,Illegal2_15);
var traypos:int;
var goodpos:int;
var badpos:int;

traypos = (stage.stageWidth / 2)-100;
goodpos = ((stage.stageWidth / 3) -100);
badpos = (((stage.stageWidth/3) *2) -100);

var timerT:Timer = new Timer(1000,120);
timerT.addEventListener(TimerEvent.TIMER, traytimerhandler);
timerT.start();

var secondsT:Number = 1;

function traytimerhandler(event:TimerEvent)
{
//trace("Seconds elapsed: " + seconds);
    SpawnTray(null);
    secondsT++;
}

function SpawnTray(event:Event):void
{
    var trayspawn:int;
    trayspawn = int(Math.random() * tray.length);

    var trayn:MovieClip = new tray[trayspawn]();

    addChild(trayn);

    trayn.x = traypos;
    trayn.y = -20;

    trayn.addEventListener(Event.ENTER_FRAME, MoveTray(trayspawn));
    trayn.addEventListener(MouseEvent.MOUSE_DOWN, startDragging);
//trayn.addEventListener(MouseEvent.CLICK, CheckTray(trayspawn));
}

function MoveTray(trayc:int):Function
{   
    return function(event:Event):void {
    var trayn:DisplayObject = event.target as DisplayObject;
    trayn.y +=  5;
    if (trayn.y >= stage.stageHeight + 50)
    {
        CheckTray(trayc);
        trayn.removeEventListener(Event.ENTER_FRAME, MoveTray);
        this.removeChild(trayn);
    }
    }
}

function startDragging(e:MouseEvent):void
{
    e.target.removeEventListener(MouseEvent.MOUSE_DOWN, startDragging);
    e.target.removeEventListener(Event.ENTER_FRAME, MoveTray);
// surprise! This object will not be moved via MOUSE_DOWN,;
// because it's already being moved
    // e.target.addEventListener(
    e.target.addEventListener(MouseEvent.MOUSE_UP, stopDragging);
    e.target.startDrag();
}
// drag;


function stopDragging(e:MouseEvent):void
{
    e.target.stopDrag();
    e.target.addEventListener( Event.ENTER_FRAME, MoveTray);
    e.target.addEventListener(MouseEvent.MOUSE_DOWN, startDragging);
    e.target.removeEventListener(MouseEvent.MOUSE_UP,stopDragging);
    return;// emergency exit. We don't need to do more
}

function CheckTray(trayspawn:int):Function
{   
    return function(event:Event):void {
    var trayn:DisplayObject = event.target as DisplayObject;
    if (trayn.x <= goodpos)
    {
    //good side
        if (trayspawn<=14)
        {
            score +=  15;
        }
        else
        {
            score -=  15;
        }
    }
    if (trayn.x >= badpos)
    {
        //bad side
        if (trayspawn<=14)
        {
            score -=  15;
        }
        else
        {
            score +=  15;
        }
    }

    if (trayn.x > goodpos && trayn.x < badpos)
    {
        //middle
        score -=  15;

    }
    }
}

Answer 1

第37行的隐式强制错误是由addEventListener期望函数引起的。将行更改为：

trayn.addEventListener(Event.ENTER_FRAME, MoveTray);

“未定义的属性事件”问题有共同的原因。函数签名中缺少事件参数。它们应该是这样的：

function MoveTray(event:Event):void

function CheckTray(event:Event):void

Answer 2

您可以使用事件的属性目标访问调度Event的对象。

例如：

var m1:MovieClip = new MovieClip();
m1.name = 'm1';
m1.addEventListener( Event.ENTER_FRAME, onEnterFrame );

var m2:MovieClip = new MovieClip();
m2.name = 'm2';
m2.addEventListener( Event.ENTER_FRAME, onEnterFrame );

function onEnterFrame(e:Event):void
{
    trace( 'onEnterFrame', e.target.name ); // you could see m1 and m2
}

希望这可以帮到你

错误＃1006：removeChild不是函数

2 个答案: