Question

我在AS3中使用Tweenlite和Starling。一切正常，但最后一次重写编译器只是忽略了Tweenlite命令，只是崩溃了这个错误：

[Fault] exception，information = undefined

at com.greensock.core :: Animation（）[/ Active / _Flash / _AS3_v12 / src / com / greensock / core / Animation.as:210]

at com.greensock :: TweenLite（）[/ Active / _Flash / _AS3_v12 / src / com / greensock / TweenLite.as:445]

at com.greensock :: TweenLite $ / to（）[/ Active / _Flash / _AS3_v12 / src / com / greensock / TweenLite.as:919]

这是发生错误的代码：

private function down():void {
    TweenLite.to(square, stage.stageHeight / 200, {y: stage.stageHeight - 50, ease: Linear.easeNone});
    if (stopped){
        TweenLite.to(square, square.y / 200, {y: 50, ease: Linear.easeNone});
        stopped = !stopped;
        rRight();
    } else {
        right();
    }
}

如果我删除 if 语句青少年发生，如果我离开它，一切都会崩溃。我不明白为什么编译器会跳过补间。

以下是相关的其余代码：

public class Square extends Sprite implements ISquare {

public const square:Quad = new Quad(100, 100);
private var stopped:Boolean;

public function Square() {
}

public function draw():void{
    addChild(square);
    square.pivotX = square.width / 2;
    square.pivotY = square.height / 2;
    square.x = 50;
    square.y = 50;

    stopped = new Boolean(false);
    down();
}

...

public function reverseDirection():void{
    stopped = !stopped;
    TweenLite.killTweensOf(square);
}

private function down():void {
    TweenLite.to(square, stage.stageHeight / 200, {y: stage.stageHeight - 50, ease: Linear.easeNone});

    if (stopped){
        TweenLite.to(square, square.y / 200, {y: 50, ease: Linear.easeNone});
        stopped = !stopped;
        rRight();
    } else {
        right();
    }
}

private function right():void {
    TweenLite.to(square, stage.stageWidth / 200, {x: stage.stageWidth - 50, ease: Linear.easeNone});
    if (stopped){
        TweenLite.to(square, square.x / 200, {x: 50, ease: Linear.easeNone});
        stopped = !stopped;
        rUp();
    } else {
        up();
    }
}
...

上下文来源：https://www.dropbox.com/sh/9x2q93o2ff1fsna/AADVJgt5nipDE1pdkgozkOc1a（Square.as）

Answer 1

因此，Tweenlite内部出现了问题。具体而言，我不知道。

你说当你删除if语句时，一切顺利。

之前，一切都很好。

考虑到你之前的问题，我认为以前一切都不好。这是您的程序第一次实际工作。它是第一次实际补间并完成所有代码的编写。

在查看代码以及我在网上找到的一些反编译代码时，我认为它与此相关：

您不是在等待补间完成。

目前，您在添加之后执行这样的代码:(我已添加注释来解释会发生什么）

private function down():void {
    TweenLite.to(square, stage.stageHeight / 200, {y: stage.stageHeight - 50, ease: Linear.easeNone});
    //1x tween started
    if (stopped){//I dunno where it goes, it goes A here...
        TweenLite.to(square, square.y / 200, {y: 50, ease: Linear.easeNone});//2nd tween
        stopped = !stopped;
        rRight();//and then here
    } else {//or it goes B here
        right();//and then here
    }
}

private function right():void {
    TweenLite.to(square, stage.stageWidth / 200, {x: stage.stageWidth - 50, ease: Linear.easeNone});
    //B path - 2nd tween started
    if (stopped){//idk, but
        TweenLite.to(square, square.x / 200, {x: 50, ease: Linear.easeNone});//either 3rd
        stopped = !stopped;
        rUp();//and on and on
    } else {//or
        up();//on and on anyway
    }
}

private function rRight():void {
    TweenLite.to(square, stage.stageWidth / 200, {x: stage.stageWidth - 50, ease: Linear.easeNone});
    //A path - 3rd tween started
    if (stopped){//idk which way, but
        TweenLite.to(square, square.x / 200, {x: 50, ease: Linear.easeNone});//4th
        stopped = !stopped;
        down();//and on and on
    } else {//or
        rDown();//still on and on and on
    }

}

发生了什么事情，你有一个无限循环，以及Tweenlite BREAKS中的东西。

可能在Tweenlite等待ENTER_FRAME时，它必须处理您设法添加的所有补间。查看documentation，您似乎可以在onComplete来电的第三个参数中添加参数TweenLite.to。你在那里放了一个函数，当补间完成后它会被调用。有关详情，请参阅documentation for onComplete。

AS3：为什么那些编译器跳过Tweenlite线？

1 个答案: