5.x的AssetBundle

最新推荐文章于 2020-05-22 23:50:13 发布

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最新推荐文章于 2020-05-22 23:50:13 发布

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分类专栏： AssetBundle 文章标签： AssetBundle

本文链接：https://blog.youkuaiyun.com/qq_34845917/article/details/75369366

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本文介绍如何在Unity3D中使用AssetBundle进行资源管理，包括设置资源名称、打包流程、加载AssetBundle及其依赖项的方法。通过代码示例展示了具体的实现步骤。

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参考自： http://blog.youkuaiyun.com/y1196645376/article/details/52602002 表示感谢

1. Building AssetBundle 打包
给资源设置Asset BundleName 。命名规则为文件夹/名称.unity3d

using UnityEngine;
using System.Collections;
using UnityEditor;

public class AssetBundleConfig  {
    /// <summary>
    /// 目标平台
    /// </summary>
    public static readonly BuildTarget BUILD_TARGET = BuildTarget.StandaloneWindows64;

    /// <summary>
    /// Asset Bundle 的存放地址
    /// </summary>
    public static readonly string ASSETBUNDLE_PATH= Application.dataPath+ "/AssetBundle/"+ BUILD_TARGET.ToString();

    /// <summary>
    /// 资源地址
    /// </summary>
    public static readonly string APPLICATION_PATH = Application.dataPath + "/";

    public static readonly string PROJECT_PATH = APPLICATION_PATH.Substring(0, APPLICATION_PATH.Length - 7);

    /// <summary>
    /// 打包的后缀名
    /// </summary>
    public static readonly string SUFFIX = ".unity3d";

    /// <summary>
    /// 需要命名的资源后缀名
    /// </summary>
    public static readonly string[] SET_ASSETBUNDLE_SUFFIX_ARRAY=new string[] { ".fbx", ".png", ".mat", "prefab", ".sharder" };

    /// <summary>
    /// 清理命名资源后缀名
    /// </summary>
    public static readonly string[] CLEAR_ASSETBUNDLE_SUFFIX_ARRAY=new string[] { ".fbx", ".png", ".mat", "prefab", ".sharder" };
}

using UnityEngine;
using System.Collections;
using UnityEditor;
using System.IO;

public class SetAssetBundle : Editor
{

    [MenuItem("Assets/AssetBundle/BuildAssetBundle")]
    private static void BuildAssetBundle()
    {
        Debug.Log(AssetBundleConfig.ASSETBUNDLE_PATH);
        if (!File.Exists(AssetBundleConfig.ASSETBUNDLE_PATH))
        {
            Directory.CreateDirectory(AssetBundleConfig.ASSETBUNDLE_PATH);
        }

        BuildPipeline.BuildAssetBundles(AssetBundleConfig.ASSETBUNDLE_PATH, BuildAssetBundleOptions.None, AssetBundleConfig.BUILD_TARGET);
    }
    /// <summary>
    /// 设置Asset Bundle资源的名字
    /// </summary>
    [MenuItem("Assets/AssetBundle/SetAssetBundleName")]
    private static void SetAssetBundleName()
    {
        UnityEngine.Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.Assets | SelectionMode.ExcludePrefab);
        Debug.Log(SelectedAsset.Length);
        if (SelectedAsset.Length != 1) { return; }
        string fullPath = AssetBundleConfig.PROJECT_PATH + AssetDatabase.GetAssetPath(SelectedAsset[0]);
        if (Directory.Exists(fullPath))
        {
            DirectoryInfo dir = new DirectoryInfo(fullPath);
            FileInfo[] files = dir.GetFiles("*", SearchOption.AllDirectories);
            for (int i = 0; i < files.Length; i++)
            {
                //Debug.Log(files[i].ToString());
                //Debug.Log(i * 1f / files.Length+";"+i+";"+files.Length);
                EditorUtility.DisplayProgressBar("设置AssetBundle名称", "正在设置...", (i + 1) * 1f / files.Length);

                foreach (var item in AssetBundleConfig.SET_ASSETBUNDLE_SUFFIX_ARRAY)
                {
                    if (files[i].Name.EndsWith(item))
                    {
                        Debug.Log(files[i].Name);
                        string path = files[i].FullName.Substring(AssetBundleConfig.PROJECT_PATH.Length).Replace("\\","/");
                        Debug.Log(path);
                        AssetImporter assetImporter = AssetImporter.GetAtPath(path);
                        if (assetImporter)
                        {
                            string temp = fullPath.Substring(AssetBundleConfig.PROJECT_PATH.Length);
                            string name = path.Substring(temp.Length+1);
                            string assetbundleName = name.Substring(0, name.LastIndexOf(".")) + AssetBundleConfig.SUFFIX;
                            Debug.Log(assetbundleName);
                            assetImporter.assetBundleName = assetbundleName;
                        }
                    }
                }

            }
            EditorUtility.ClearProgressBar();
        }
    }
    [MenuItem("Assets/AssetBundle/GetAssetBundleName")]
    private static void GetAssetBundleName()
    {
        string[] names = AssetDatabase.GetAllAssetBundleNames();
        foreach (var item in names)
        {
            Debug.Log(item);
        }
    }
    [MenuItem("Assets/AssetBundle/ClearAssetBundleName")]
    private static void ClearAssetBundleName()
    {
        UnityEngine.Object[] SelectedAsset = Selection.GetFiltered(typeof(Object), SelectionMode.Assets | SelectionMode.ExcludePrefab);
        Debug.Log(SelectedAsset.Length);
        if (SelectedAsset.Length != 1) { return; }
        string fullPath = AssetBundleConfig.PROJECT_PATH + AssetDatabase.GetAssetPath(SelectedAsset[0]);
        if (Directory.Exists(fullPath))
        {
            DirectoryInfo dir = new DirectoryInfo(fullPath);
            FileInfo[] files = dir.GetFiles("*", SearchOption.AllDirectories);
            for (int i = 0; i < files.Length; i++)
            {
                //Debug.Log(files[i].ToString());
                //Debug.Log(i * 1f / files.Length+";"+i+";"+files.Length);
                EditorUtility.DisplayProgressBar("清除AssetBundle名称", "正在清除...", (i + 1) * 1f / files.Length);

                foreach (var item in AssetBundleConfig.CLEAR_ASSETBUNDLE_SUFFIX_ARRAY)
                {
                    if (files[i].Name.EndsWith(item))
                    {
                        Debug.Log(files[i].Name);
                        string path = files[i].FullName.Substring(AssetBundleConfig.PROJECT_PATH.Length).Replace("\\", "/");
                        Debug.Log(path);
                        AssetImporter assetImporter = AssetImporter.GetAtPath(path);
                        if (assetImporter)
                        {
                            assetImporter.assetBundleName = null;
                        }
                    }
                }

            }
            EditorUtility.ClearProgressBar();
        }

    }
}

2 。加载Asset Bundle.先加载AssetBundleManifest 获得总的依赖文件列表；加载依赖资源；加载物体

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class LoadAssetBundle : MonoBehaviour {

    private static AssetBundleManifest manifest = null;

    private static Dictionary<string, AssetBundle> abDic = new Dictionary<string, AssetBundle>();

    public static AssetBundle LoadAB(string abPath)
    {
        if (abDic.ContainsKey(abPath) == true)
            return abDic[abPath];
        if (manifest == null)
        {
            /*
             *两种资源加载的方式
             */
            /*第一种*/
            //Debug.Log("资源地址" + AssetBundleConfig.ASSETBUNDLE_PATH + "/" + AssetBundleConfig.BUILD_TARGET.ToString());
            //string mURL = "file://" + AssetBundleConfig.ASSETBUNDLE_PATH + "/" + AssetBundleConfig.BUILD_TARGET.ToString();
            //WWW www = WWW.LoadFromCacheOrDownload(mURL, 0);
            //if (!string.IsNullOrEmpty(www.error))
            //{
            //    Debug.LogError(www.error);
            //}
            //else
            //{
            //    AssetBundle manifestBundle1 = www.assetBundle;
            //    manifest = (AssetBundleManifest)manifestBundle1.LoadAsset("AssetBundleManifest");
            //}
            /*第二种*/
            AssetBundle manifestBundle = AssetBundle.LoadFromFile(AssetBundleConfig.ASSETBUNDLE_PATH + "/" + AssetBundleConfig.BUILD_TARGET.ToString());
            manifest = (AssetBundleManifest)manifestBundle.LoadAsset("AssetBundleManifest");
        }
        if (manifest != null)
        {
            // 2.获取依赖文件列表  
            string[] cubedepends = manifest.GetAllDependencies(abPath);

            for (int index = 0; index < cubedepends.Length; index++)
            {
                Debug.Log("加载依赖资源" + cubedepends[index]);
                // 3.加载所有的依赖资源
                LoadAB(cubedepends[index]);
            }

            /*第一种*/
             4.加载资源
            //string mURL1 = "file://" +AssetBundleConfig.ASSETBUNDLE_PATH+ "/" + abPath;
            //WWW www1 = WWW.LoadFromCacheOrDownload(mURL1, 0);
            //if (!string.IsNullOrEmpty(www1.error))
            //{
            //    Debug.LogError(www1.error);
            //}
            //else
            //{
            //    AssetBundle manifestBundle1 = www1.assetBundle;
            //    abDic[abPath] = manifestBundle1;
            //}

            /*第二中*/
            // 4.加载资源
            abDic[abPath] = AssetBundle.LoadFromFile(AssetBundleConfig.ASSETBUNDLE_PATH + "/" + abPath);

            return abDic[abPath];
        }
        return null;
    }

    public static Object LoadGameObject(string abName)
    {
        string abPath = abName + AssetBundleConfig.SUFFIX;
        int index = abName.LastIndexOf('/');
        string realName = string.Empty;
        if (index == -1)
        {
            index = abName.Length;
            realName = abName;
        }
        else
        {
            realName = abName.Substring(index + 1, abName.Length - index - 1);
        }
        LoadAB(abPath);

        if (abDic.ContainsKey(abPath) && abDic[abPath] != null)
        {
            return abDic[abPath].LoadAsset(realName);
        }
        return null;
    }


}

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