AS3＆GT;开始对某些框架类？ [英] AS3 > Starting class on certain frame?
问题描述
我创建了一个AS文件，并用它作为一类，里面我叫按钮和幻灯片播放的图像。
之后，我决定通过移动时间线来创建一个前奏。我的问题是，所有的对象都将显示在第一帧，有没有办法一定的帧之后，使整个班级开始？
code，以供参考：
包{
进口flash.display.Loader;
进口flash.net.URLRequest;
进口对象类型：flash.events.Event;
进口flash.display.Sprite;
进口flash.events.MouseEvent;
进口的flash.display.MovieClip;
公共类游戏扩展了影片剪辑{
私人VAR装载机：装载机=新的Loader（）;
私人VAR图片：数组= [IMG / Layer_1.jpg，IMG / Layer_2.jpg，IMG / Layer_3.jpg，IMG / Layer_4.jpg，IMG / Layer_5.jpg，IMG / Layer_6.jpg，的img / Layer_7.jpg，的img / Layer_9.jpg，的img / Layer_10.jpg，的img / Layer_11.jpg，的img / Layer_12.jpg，的img / Layer_13。 JPG，IMG / Layer_14.jpg];
私人VAR triangleButton：三角=新的三角形;
私人VAR squareButton：万=新的广场;
私人VAR crossButton：十字=新的交叉;
私人VAR circleButton：圈=新的循环;
公共职能发挥（）{
loadNextImage（）;
的addChild（装载机）;
loader.x = 137;
loader.y = 65;
//按钮
的addChild（triangleButton）;
triangleButton.width = 28;
triangleButton.scaleY = triangleButton.scaleX;
triangleButton.x = 804;
triangleButton.y = 107;
triangleButton.addEventListener（MouseEvent.CLICK，slideGames）;
的addChild（circleButton）;
circleButton.width = 28;
circleButton.scaleY = circleButton.scaleX;
circleButton.x = 825;
circleButton.y = 130;
circleButton.addEventListener（MouseEvent.CLICK，slideGames）;
的addChild（crossButton）;
crossButton.width = 28;
crossButton.scaleY = crossButton.scaleX;
crossButton.x = 804;
crossButton.y = 155;
crossButton.addEventListener（MouseEvent.CLICK，slideGames）;
的addChild（squareButton）;
squareButton.width = 28;
squareButton.scaleY = squareButton.scaleX;
squareButton.x = 780;
squareButton.y = 130;
squareButton.addEventListener（MouseEvent.CLICK，slideGames）;
}
公共职能slideGames（事件：MouseEvent）方法：无效{
loadNextImage（）;
}
公共职能loadNextImage（）：无效{
//增加图像
_imageIndex ++;
//如果我们已经达到了数组末尾，重新开始
如果（_imageIndex＆GT; = images.length）{
_imageIndex = 0;
}
//现在得到的阵列图像源，并告诉加载器加载它
VAR的ImageSource：字符串=图像[_imageIndex]为String;
loader.load（新的URLRequest（ImageSource的））;
}
//下一张图片显示
保护VAR _imageIndex：= -1;
}
}
是的，而不是在类的构造函数（播放（））初始化一切，你可以其移动到另一个函数，调用从时间线上。我使用的是播放类作为文档类假设。
因此，而不是
公共职能发挥（）{
您将其重命名为
公共职能play_start（）{
在这一点上创建命名一个空的构造玩（），如果你想。
在闪光灯的IDE中，选择要显示的项目框架，然后创建一个关键帧也是如此。 选择关键帧，然后转到动作面板（F9）并输入以下code：
this.play_start（）;
在播放头是关键帧，你的code应该被执行。
I created an AS file and used it as a class, inside it I called buttons and slideshow images.
After that I decided to create an intro by moving the timeline. My problem is that all the objects are displayed from the very first frame, is there a way to make the entire class start after certain frame?
Code for reference:
package {
import flash.display.Loader;
import flash.net.URLRequest;
import flash.events.Event;
import flash.display.Sprite;
import flash.events.MouseEvent;
import flash.display.MovieClip;
public class play extends MovieClip {
private var loader:Loader = new Loader();
private var images:Array = ["img/Layer_1.jpg", "img/Layer_2.jpg", "img/Layer_3.jpg", "img/Layer_4.jpg", "img/Layer_5.jpg", "img/Layer_6.jpg", "img/Layer_7.jpg", "img/Layer_9.jpg", "img/Layer_10.jpg", "img/Layer_11.jpg", "img/Layer_12.jpg", "img/Layer_13.jpg", "img/Layer_14.jpg"];
private var triangleButton:triangle = new triangle;
private var squareButton:square = new square;
private var crossButton:cross = new cross;
private var circleButton:circle = new circle;
public function play() {
loadNextImage();
addChild(loader);
loader.x = 137;
loader.y = 65;
//Buttons
addChild(triangleButton);
triangleButton.width = 28;
triangleButton.scaleY = triangleButton.scaleX;
triangleButton.x = 804;
triangleButton.y = 107;
triangleButton.addEventListener(MouseEvent.CLICK, slideGames);
addChild(circleButton);
circleButton.width = 28;
circleButton.scaleY = circleButton.scaleX;
circleButton.x = 825;
circleButton.y = 130;
circleButton.addEventListener(MouseEvent.CLICK, slideGames);
addChild(crossButton);
crossButton.width = 28;
crossButton.scaleY = crossButton.scaleX;
crossButton.x = 804;
crossButton.y = 155;
crossButton.addEventListener(MouseEvent.CLICK, slideGames);
addChild(squareButton);
squareButton.width = 28;
squareButton.scaleY = squareButton.scaleX;
squareButton.x = 780;
squareButton.y = 130;
squareButton.addEventListener(MouseEvent.CLICK, slideGames);
}
public function slideGames(event:MouseEvent):void {
loadNextImage();
}
public function loadNextImage() : void {
// Increment the image
_imageIndex++;
// If we've reached the end of the array, start over
if (_imageIndex >= images.length) {
_imageIndex = 0;
}
// Now get the image source from the array and tell the loader to load it
var imageSource : String = images[_imageIndex] as String;
loader.load(new URLRequest(imageSource));
}
// Next image to display
protected var _imageIndex : int = -1;
}
}
Yes, instead of initializing everything in the constructor of your class (play()), you can move it to another function, and call that from the timeline. I am assuming you are using the play class as the document class.
So instead of
public function play() {
you would rename it to
public function play_start() {
Create an empty constructor named play() at this point if you want to.
In the flash IDE, select the frame where you want the items to appear, then create a keyframe there. Select the keyframe and go to the Actions panel (F9) and enter the following code:
this.play_start();
once the playhead is at the keyframe, your code should be executed.
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