检测是否存在时间线掩码

发布于 2024-12-03 17:53:48 字数 601 浏览 2 评论 0原文

我在 Flash 上遇到了一个非常奇怪的行为。如果您在 Flash IDE 上创建一个带有与其关联的蒙版的形状，保存它然后将其导出为 swf，则您无法以编程方式知道存在蒙版（displayObject.mask 为 null），

下面是一个简单的测试脚本来证明这一点：

//executed on enter_frame with the root object
function test(d:DisplayObject) : Void
{
    if (Std.is(d, DisplayObjectContainer))
    {
        var s:DisplayObjectContainer =  cast d;
        for (i in 0...s.numChildren)
            test(s.getChildAt(i));
    }

    if (d.mask != null)
        trace("FOUND " + d.name);
}

语法有点不同，因为它是 haxe，但它会在普通 AS3

跟踪上显示相同的内容，即未找到掩码！我只需要以不同的方式处理附有面具的情况，那么有什么方法/解决这个奇怪的问题吗？

原文

I am bumping into a very strange behaviour on Flash.
If you on the Flash IDE create a shape with a mask associated to it, save it and then export it as a swf, you cannot programatically know there is a mask (displayObject.mask is null)

Here's a simple test script to prove that:

//executed on enter_frame with the root object
function test(d:DisplayObject) : Void
{
    if (Std.is(d, DisplayObjectContainer))
    {
        var s:DisplayObjectContainer =  cast d;
        for (i in 0...s.numChildren)
            test(s.getChildAt(i));
    }

    if (d.mask != null)
        trace("FOUND " + d.name);
}

The syntax is a little different since it's haxe, but it will display the same on vanilla AS3

traces that no mask was found! I just need to handle differently the cases where there is a mask attached to it, so is there any way/workaround this strange issue?

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