assetbundle分包

寻找被多个包引用的资源单独出来生成一个

  class AssetRefCache    {        public long m_Guid;        int m_RefCount;        public string m_ABNames;        public AssetRefCache()        {            m_RefCount = 0;        }        public void AddRef()        {            m_RefCount++;        }    }    class PackCache    {        public string m_Name;        public List<string> m_RefPacks;        public PackCache(string name)        {            m_Name = name;            m_RefPacks = new List<string>();        }    }    public class CheckReference    {        static Dictionary<string, AssetRefCache> m_CacheDics;        static Dictionary<string, AssetRefCache> m_SplitAssetDics;        static Dictionary<string, PackCache> m_CachePackDics;        static private List<string> GetFolderNames(string path)        {            List<string> dirs = new List<string>();            foreach (string strs in Directory.GetDirectories(path))            {                dirs.Add(strs);            }            return dirs;        }        static List<string> GetFileNames(string path)        {            List<string> dirs = new List<string>();            foreach (string strs in Directory.GetFiles(path))            {                dirs.Add(strs);            }            return dirs;        }        [MenuItem("AssetBundle/AssetBundleUnpack", false, 10)]        static private void AssetBundleUnpack()        {            EditorSettings.serializationMode = SerializationMode.ForceText;            string path = AssetDatabase.GetAssetPath(Selection.activeObject);            if (path.Equals(""))                return;            m_SplitAssetDics = new Dictionary<string, AssetRefCache>();            m_CacheDics = new Dictionary<string, AssetRefCache>();            m_CachePackDics = new Dictionary<string, PackCache>();            SplitPack(GetFolderNames(path).ToArray());            string outputPath = Path.Combine(Utility.AssetBundlesOutputPath, Utility.GetPlatformName());            if (!Directory.Exists(outputPath))                Directory.CreateDirectory(outputPath);            BuildPipeline.BuildAssetBundles(outputPath, BuildAssetBundleOptions.None,                EditorUserBuildSettings.activeBuildTarget);        }        /// <summary>        /// 分割沉余资源        /// </summary>        static private void SplitPack(string[] paths)        {                        for (int i=0;i<paths.Length;i++)            {                paths[i].Replace("\\", "/");                m_CachePackDics.Add(paths[i], new PackCache(paths[i]));                CacheFolder(paths[i], paths[i]);                CacheFile(paths[i], paths[i]);            }            foreach (KeyValuePair<string, AssetRefCache> cache in m_SplitAssetDics)            {                string guid = AssetDatabase.AssetPathToGUID(cache.Key);                SetAssetBundleName(guid, cache.Key);                m_CachePackDics[cache.Value.m_ABNames].m_RefPacks.Add(guid);            }        }        static private void CacheFolder(string path, string abName)        {            path.Replace("\\", "/");            foreach (string str in Directory.GetDirectories(path))            {                CacheFile(str, abName);            }        }        static private void CacheFile(string path, string abName)        {            path.Replace("\\", "/");            foreach (string str in Directory.GetFiles(path))            {                CacheDependencies(str, abName);             }        }        static private void CacheDependencies(string path, string abName)        {            path.Replace("\\", "/");            string[] strs = AssetDatabase.GetDependencies(path);            foreach (string str in strs)            {                AssetRefCache cache;                if (m_CacheDics.TryGetValue(str, out cache))                {                    if (cache.m_ABNames.Equals(abName))                    {                        cache.AddRef();                        if(!m_SplitAssetDics.ContainsKey(str))                            m_SplitAssetDics.Add(str, cache);                    }                }                else                {                    cache = new AssetRefCache();                    cache.m_ABNames = abName;                    m_CacheDics.Add(str, cache);                 }            }            SetAssetBundleName(abName, path);        }        /// <summary>        /// 修改ab name        /// </summary>        /// <param name="path"></param>        static private void SetAssetBundleName(string name, string path)        {            path = path.Replace("\\", "/");            path = path.Replace(".meta", "");            var importer = AssetImporter.GetAtPath(path);            if (importer && importer.assetBundleName != name)            {                name.Replace("\\", "/");                importer.assetBundleName = name;            }         }    }