unity3d 是否从Button启动异步Monobhavior类？

dbf7pr2w 于 2022-11-15 发布在其他

关注(0)|答案(2)|浏览(143)

我在Unity & C#方面完全是个菜鸟，现在我有一个任务，我觉得有点势不可挡，所以任何输入都将非常感谢...
我得到了一个类，看起来像这样：

//using directives

public class PipelineExample : MonoBehaviour
{
    private CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
    private bool res = false;

    // Start is called before the first frame update
    void Start()

    {
        StartPipeline();
        while (!res) ;
    }

    async void StartPipeline()
    {
        // create models, pipeline, pipeline step
        IModel fbxModel = new FbxModel();
        Pipeline<IModel> pipeline = new Pipeline<IModel>();
        IAction<IModel> pipelineStep = new GenericPipelineStep<IModel>();

        // add steps to pipeline
        pipeline.AddPipeLineStep(pipelineStep);


        try
        {
            res = await pipeline.Execute(fbxModel, cancellationTokenSource.Token);
            Console.Write("Result of pipeline: " + res);
        }
        catch (OperationCanceledException)
        {
            Console.WriteLine("Canceled successfully!");
        }
    }

    // Update is called once per frame
    void Update()
    {
        
    }
}

现在，我想在单击“开始”按钮时，以某种方式从另一个类调用此startmethod（？）：

private void OnStartButtonClicked(MouseUpEvent evt)
{
    //What goes in here?
}

我不能只是流水线示例.开始很明显，
公共管道示例;启动也不起作用。
基本上我的问题是，如何从另一个类启动这个PipeLineExample类？

unity3d

来源：https://stackoverflow.com/questions/74381210/starting-async-monobehaviour-class-from-button

2条答案

按热度按时间

ctzwtxfj1#

如果您对PipelineExample类进行了一些修改，您应该能够调用您正在寻找的方法。
下面是一个例子，你可以通过很多方法来实现这一点：

public class PipelineExample : MonoBehaviour
{
    private CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();

    public static PipelineExample instance { get; private set; }
    public static bool initialised { get; private set; }

    public IModel fbxModel { get; private set; }
    public Pipeline<IModel> pipeline { get; private set; }

    // Unity will create an instance of this class. We then use it as a 'singleton'.
    private void Awake ( )
    {
        if ( instance != null )
            return;

        instance = this;
    }

    public async Task<bool> StartPipeline ( )
    {
        if ( initialised )
            return true;

        // create models, pipeline, pipeline step
        fbxModel = new FbxModel();
        pipeline = new Pipeline<IModel>();
        IAction<IModel> pipelineStep = new GenericPipelineStep<IModel>();

        // add steps to pipeline
        pipeline.AddPipeLineStep ( pipelineStep );

        try
        {
            initialised = await pipeline.Execute ( fbxModel, cancellationTokenSource.Token );
            Console.Write ( "Result of pipeline: " + initialised );
        }
        catch ( OperationCanceledException )
        {
            Console.WriteLine ( "Canceled successfully!" );
        }

        return initialised;
    }

    // You might want to include a method to cancel the pipeline setup using cancellationTokenSource?
}

因为它是一个MonoBehaviour，Unity将处理创建该类的示例。如果你不想将该类作为组件附加到场景中的GameObject，你也可以将其实现为ScriptableObject（可能是我的首选）。但是你可能希望场景特定的值在应用程序中驱动这个组件。
然后，您可以如下调用设置：

private async void OnStartButtonClicked ( MouseUpEvent evt )
{
    if ( !PipelineExample.initialised )
    {
        // The pipeline isn't yet initialised. Alert user for a potential setup time.
        if ( !await PipelineExample.instance.StartPipeline ( ) )
        {
            // Something went wrong ... alert user?
            return;
        }
    }

    // PipelineExample is initialised.
    // PipelineExample.instance.fbxModel and PipelineExample.instance.pipeline are now set up.
}

请注意，这将在单击按钮时设置您的管道。如果加载时间很长，您可能会受益于某种用户通知，让用户知道存在潜在的延迟。

赞(0）回复(0）举报 2022-11-15

lf3rwulv2#

所以我找到了一个简单可行的解决方案。
我只是将PipelineExample中的方法设置为静态，并在按钮中调用start：管道示例.Start（）;

赞(0）回复(0）举报 2022-11-15