BuildPipeline.BuildStreamedSceneAssetBundle

参数

返回

string 带有错误消息的字符串，成功时为空。

描述

将一个或多个场景以及它们的所有依赖关系构建到压缩资源包中。

场景 AssetBundle 可以针对任何目标平台而构建，它始终会创建一个经过压缩的 unity3d 文件。

该场景可使用 UnityWebRequest 类进行下载和加载。 在下载完成后，您可以使用 UnityWebRequestAssetBundle.GetAssetBundle 来缓存已下载的场景。可选的 crc 输出参数可用于获取生成的 AssetBundle 的 CRC 校验和，该校验和可用于在使用 UnityWebRequestAssetBundle.GetAssetBundle() 下载 AssetBundle 时验证其内容。

using UnityEngine;
using UnityEditor;
using System.Collections;

public class StreamedSceneLoaderExample : MonoBehaviour
{
    // Build a streamed unity3d file. This contain one scene that can be downloaded
    // on demand and loaded once its asset bundle has been loaded.

    [MenuItem("Build/BuildWlayerStreamed")]
    public static void MyBuild()
    {
        string[] levels = new string[] {"Assets/Level1.unity"};
        BuildPipeline.BuildStreamedSceneAssetBundle(levels, "Streamed-Level1.unity3d", BuildTarget.StandaloneWindows);
    }
}

下载构建的压缩文件时，您需要调用 DownloadHandlerAssetBundle.GetContent()，以使该场景可用于 Application.LoadLevel() 和 Application.LoadLevelAdditive() 函数。

using UnityEngine;
using UnityEngine.Networking;
using System.Collections;

public class StreamedSceneLoaderExample : MonoBehaviour
{
    IEnumerator Start()
    {
        // Download compressed scene. If version 5 of the file named "Streamed-Level1.unity3d" was previously downloaded and cached.
        // Then Unity will completely skip the download and load the decompressed scene directly from disk.
        var download = UnityWebRequestAssetBundle.GetAssetBundle("http://myWebSite.com/Streamed-Level1.unity3d", 5);
        yield return download.SendWebRequest();

        // Handle error
        if (download.isNetworkError || download.isHttpError)
        {
            Debug.LogError(download.error);
            yield break;
        }

        // In order to make the scene available from LoadLevel, we have to load the asset bundle.
        // The AssetBundle class also lets you force unload all assets and file storage once it is no longer needed.
        var bundle = DownloadHandlerAssetBundle.GetContent(download);

        // Load the level we have just downloaded
        Application.LoadLevel("Level1");
    }
}