【Unity】unity打包下载（参考）

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using UnityEngine;using System.Collections;using UnityEditor;using System.IO;/// <summary>/// 编辑器 打包/// </summary>public class BuildAssetBundle{    [MenuItem("build/1.create All Scene AssetBundleName")]    static void clearAssetBundleName()    {        string[] files = Directory.GetFiles(Application.dataPath, "*.unity", SearchOption.AllDirectories);        for (int i = 0; i < files.Length; i++)        {            string currentFile = files[i].Replace("\\", "/");            int startIndex = currentFile.IndexOf("Assets");            string assetFile = currentFile.Substring(startIndex, currentFile.Length - startIndex);            string sceneName = Path.GetFileNameWithoutExtension(assetFile);            AssetImporter ai = AssetImporter.GetAtPath(assetFile);            ai.assetBundleName = sceneName;            ai.assetBundleVariant = Main.AB_END;        }    }    [MenuItem("build/2.Build All AssetBundle")]    static void buildAssetBundle()    {        string outPath = Application.streamingAssetsPath + "/AssetBundle";        if (!Directory.Exists(outPath))        {            Directory.CreateDirectory(outPath);        }        BuildPipeline.BuildAssetBundles(outPath);    }    [MenuItem("build/3.clear All AssetBundle")]    static void clearAssetBundle()    {        string outPath = Application.streamingAssetsPath + "/AssetBundle";        if (!Directory.Exists(outPath))        {            return;        }        deleteFileOrFolder(outPath);        AssetDatabase.Refresh();    }    static void deleteFileOrFolder(string fileOrFolder)    {        if (Directory.Exists(fileOrFolder))        {            string[] allFiles = Directory.GetFiles(fileOrFolder);            if (allFiles != null)            {                for (int i = 0; i < allFiles.Length; i++)                {                    deleteFileOrFolder(allFiles[i]);                }            }            string[] allFolders = Directory.GetDirectories(fileOrFolder);            if (allFolders != null)            {                for (int i = 0; i < allFolders.Length; i++)                {                    deleteFileOrFolder(allFolders[i]);                }            }            Directory.Delete(fileOrFolder);        }        else        {            if (File.Exists(fileOrFolder))            {                File.Delete(fileOrFolder);            }        }    }}using UnityEngine;using System.Collections;using UnityEngine.SceneManagement;/// <summary>/// 下载/// </summary>public class Main : MonoBehaviour{    public const string AB_END = "assetbundle";    // Use this for initialization    void Start()    {    }    // Update is called once per frame    void Update()    {    }    void OnGUI()    {        if (GUILayout.Button("加载a场景"))        {            StartCoroutine(loadScene("a"));        }    }    IEnumerator loadScene(string sceneName)    {        string fileFullPath = "file://" + Application.streamingAssetsPath + "/AssetBundle/" + sceneName + "." + AB_END;        WWW www = new WWW(fileFullPath);        yield return www;        if (www.error == null)        {            AssetBundle abScene = www.assetBundle;            SceneManager.LoadScene(sceneName);        }        else        {            Debug.LogError("fileFullPath:" + fileFullPath + " error:" + www.error);        }        www.Dispose();        www = null;    }}
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