AS3 对象数组到类
我是新手,在使用 as3 中的类时遇到问题。 我在我的主时间轴中创建了一系列对象
function badPlayer()
{
var bads:Array = new Array();
for (var i=0; i<5; i++)
{
var mc = new bman();
mc.name=["mc"+i];
bads.push(mc);
_backGround.addChild(mc);
mc.x = 100;
mc.y = 100;
trace (bads);
Baddies(_backGround.mc); //here I am trying to export mc to my class
}
}
,这是我的班级的一个片段。我的跟踪语句甚至不会输出。
public class Baddies extends MovieClip
{
private var pistolSound:pistolShot = new pistolShot();
//private var mc = new mc();
private var _rotateSpeedMax:Number = 2;
private var _gravity:Number = .68;
private var _bulletSpeed:Number = 2;
private var _maxDistance:Number = 200;
private var _reloadSpeed:Number = 500; //milliseconds
private var _barrelLength:Number = 20;
private var _bulletSpread:Number = 5;
private var _isLoaded:Boolean = true;
private var _isFiring:Boolean = true;
private var _endX:Number;
private var _endY:Number;
private var _startX:Number;
private var _startY:Number;
private var _reloadTimer:Timer;
private var _bullets:Array = [];
private var _gun:MovieClip;
private var _enemy:MovieClip;
private var _yx:Number;
private var _yy:Number;
private var _pcos:Number;
private var _psin:Number;
private var _trueRotation:Number;
public function Baddies()
{
trace("working");
stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
}
基本上,我试图创建几个坏人(bman),并将相同的代码应用于每个坏人。我还尝试将 bman 的链接名称更改为 Baddies,但没有成功。
I am new and having an issue with the use of classes in as3.
I have created an array of objects in my main timeline
function badPlayer()
{
var bads:Array = new Array();
for (var i=0; i<5; i++)
{
var mc = new bman();
mc.name=["mc"+i];
bads.push(mc);
_backGround.addChild(mc);
mc.x = 100;
mc.y = 100;
trace (bads);
Baddies(_backGround.mc); //here I am trying to export mc to my class
}
}
Here is a snip-it from my class. My trace statement wont even output.
public class Baddies extends MovieClip
{
private var pistolSound:pistolShot = new pistolShot();
//private var mc = new mc();
private var _rotateSpeedMax:Number = 2;
private var _gravity:Number = .68;
private var _bulletSpeed:Number = 2;
private var _maxDistance:Number = 200;
private var _reloadSpeed:Number = 500; //milliseconds
private var _barrelLength:Number = 20;
private var _bulletSpread:Number = 5;
private var _isLoaded:Boolean = true;
private var _isFiring:Boolean = true;
private var _endX:Number;
private var _endY:Number;
private var _startX:Number;
private var _startY:Number;
private var _reloadTimer:Timer;
private var _bullets:Array = [];
private var _gun:MovieClip;
private var _enemy:MovieClip;
private var _yx:Number;
private var _yy:Number;
private var _pcos:Number;
private var _psin:Number;
private var _trueRotation:Number;
public function Baddies()
{
trace("working");
stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
}
Basically I am trying to create several bad guys (bman) and have the same code apply to each of them. I have also tried to change the linkage name of bman to Baddies with no success.
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这段代码有一些非常错误的地方。
正如评论中已经指出的那样,这是一种类型转换。顺便说一句,Baddies 不是一个好名字,因为它是复数。您可能想创建一个新的坏人,这可以通过以下行完成:
现在您的构造函数使用
stage
变量。这不起作用,因为该对象不在舞台上,因此stage
为null
(如果您将实例拖放到编辑器中的舞台上,则可能会起作用)。因此,在使用stage
之前,您实际上需要将对象添加到 stage:并在
badPlayer
函数中:There are a few thing that are very wrong with this code.
This is a typecast, as already stated in the comments. By the way Baddies isn't a good name, because it plural. You probably want to create a new bad guy, which would be done with this line:
Now your constructor uses the
stage
variable. This won't work because the object isn't on the stage, thereforestage
isnull
(it may works if you drag and drop an instance to the stage in the editor). So before using thestage
you actually need to add the object to the stage:And in the
badPlayer
function: