从具有一定概率的阵列选择随机信息并把它添加到阶段 [英] Select random item from an array with certain probabilities and add it to the stage

问题描述

其相当大的任务，但不适试图解释。

Its quite a big task but ill try to explain.

我有200个字符串列表一个数组，我希望能够随机选择一个，并把它添加到使用code阶段。我的影片剪辑ActionScript导出使用相同的类名作为数组中的字符串。另外，如果有可能，我会能够选择与predictability字符串，如第一个拥有0.7的机会第二个是0.1等。这里是我目前

I have an array with a list of 200 strings and I want to be able to randomly select one and add it to the stage using code. I have movieclips exported for actionscript with the same class name as the strings in the array. Also, if it is possible, would I be able to select the strings with predictability such as the first has a 0.7 chance the second a 0.1 etc. Here is what i have currently

var nameList:Array=["Jimmy","Bob","Fred"]

var instance:DisplayObject = createRandom(nameList);
addChild(instance);

function createRandom(typeArray:Array):*
{
// Select random String from typeArray.
var selection:String = typeArray[ int(Math.random() * typeArray.length) ];

// Create instance of relevant class.
var Type:Class = getDefinitionByName(selection) as Class;

// Return created instance.
return new Type();
}

这一切都引发了我这个错误

All this throws me this error

的ReferenceError：错误＃1065：变量[麦类]没有定义

ReferenceError: Error #1065: Variable [class Jimmy] is not defined.

香港专业教育学院寻找类似的其它线程但没有结合随机，predictability和的addChild（）的三项具体任务

Ive searched for other threads similar but none combine the three specific tasks of randomisation, predictability and addChild().

推荐答案

我认为你有两个问题：一个语言的问题和逻辑问题。在连接到您的code以上的.fla文件，在库中找到重新$ P $每个符号psenting的名称和写入了AS联动列该符号相关联的名称 - 例如，鲍勃，弗雷德 - 只是名字，没有标点符号。

I think that you've got two problems: a language problem and a logic problem. In the .fla connected to your code above, in the Library find each symbol representing a name and write into the 'AS linkage' column for that symbol the associated name -- e.g., 'Bob,' 'Fred' -- just the name, no punctuation.

现在 getDefinitionByName（）会发现你的类

如果你把不同的图形到每一个影片剪辑 - 比方说，一个水果或鲍勃，吉姆，弗雷德的照片 - 并运行程序，你会一次比一次随机的东西在舞台上。

If you put a different graphic into each MovieClip -- say, a piece of fruit or a picture of Bob,Jim, Fred -- and run your program you'll get a random something on stage each time.

这应该解决您的语言问题。但逻辑问题是有点困难，不是吗？ 这就是为什么我指出你Kelly先生的解决方案（第一位的，这对我来说更容易掌握）。

That should solve your language problem. But the logic problem is a little harder, no? That's why I pointed you to Mr. Kelly's solution (the first one, which for me is easier to grasp).

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