13 files changed, 599 insertions, 0 deletions
diff --git a/Assets/Scripts/Editor.meta b/Assets/Scripts/Editor.meta
new file mode 100644
index 0000000..b1cf477
--- /dev/null
+++ b/Assets/Scripts/Editor.meta
@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: 22e71af268e34ac4f86477c2ec704ddf
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/Editor/BuildCustomPipeline.cs b/Assets/Scripts/Editor/BuildCustomPipeline.cs
new file mode 100644
index 0000000..3c91409
--- /dev/null
+++ b/Assets/Scripts/Editor/BuildCustomPipeline.cs
@@ -0,0 +1,16 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEditor;
+using UnityEditor.Build;
+using UnityEditor.Build.Reporting;
+
+public class BuildCustomPipeline : IPreprocessBuildWithReport
+{
+  public int callbackOrder { get { return 0; } }
+  public void OnPreprocessBuild(BuildReport report)
+  {
+  //  BundleHelper.BuildBundles();
+  }
+
+}
diff --git a/Assets/Scripts/Editor/BuildCustomPipeline.cs.meta b/Assets/Scripts/Editor/BuildCustomPipeline.cs.meta
new file mode 100644
index 0000000..5230b90
--- /dev/null
+++ b/Assets/Scripts/Editor/BuildCustomPipeline.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 900a82c1f64da4b488ea055108308070
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/Editor/BundleHelper.cs b/Assets/Scripts/Editor/BundleHelper.cs
new file mode 100644
index 0000000..631d542
--- /dev/null
+++ b/Assets/Scripts/Editor/BundleHelper.cs
@@ -0,0 +1,82 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.Linq;
+using System.IO;
+using UnityEngine;
+using UnityEditor;
+
+public class BundleHelper
+{
+
+  static string TempPath = Application.temporaryCachePath + "/PackData";
+  static string TargetPath = Application.dataPath + "/StreamingAssets/PackData"; // or Application.streamingAssetsPath
+  static string MainBundleName = "PackData";
+  static string MainBundle = TargetPath + "/PackData";
+  static string ManifestFile = Application.dataPath + "/Resources/bundles.manifest";
+
+  [MenuItem("Build/Build bundles")]
+  public static void BuildBundles()
+  {
+    if(!Directory.Exists(TempPath))
+      Directory.CreateDirectory(TempPath);
+    BuildAssetBundleOptions options = BuildAssetBundleOptions.None;
+    options |= BuildAssetBundleOptions.ChunkBasedCompression;
+    options |= BuildAssetBundleOptions.DeterministicAssetBundle;
+    options |= BuildAssetBundleOptions.ForceRebuildAssetBundle;
+    options |= BuildAssetBundleOptions.StrictMode;
+#if UNITY_IOS
+    BuildPipeline.BuildAssetBundles(TempPath, options, BuildTarget.iOS);
+#elif UNITY_ANDROID
+    BuildPipeline.BuildAssetBundles(TempPath, options, BuildTarget.Android);
+#else
+    BuildPipeline.BuildAssetBundles(TempPath, options, BuildTarget.StandaloneWindows);
+#endif
+    Debug.Log("Bundle生成结束");
+    // Move to StreamingAssets
+    if (!Directory.Exists(TargetPath))
+      Directory.CreateDirectory(TargetPath);
+    string[] files = Directory.GetFiles(TempPath, "*.*");
+    string dirPath = null;
+    foreach(string file in files)
+    {
+      if (!file.EndsWith(".manifest") && !file.EndsWith(".meta"))
+      {
+        dirPath = file.Replace('\\', '/');
+        dirPath = dirPath.Replace(TempPath, TargetPath);
+        if (File.Exists(dirPath))
+          File.Delete(dirPath);
+        File.Move(file, dirPath);
+      }
+    }
+    // 将bundle的md5写入bundles.manifest文件
+    AssetBundle mainBundle = AssetBundle.LoadFromFile(MainBundle);
+    if (mainBundle != null)
+    {
+      AssetBundleManifest manifest = mainBundle.LoadAsset<AssetBundleManifest>("AssetBundleManifest");
+      if (manifest != null)
+      {
+        if (File.Exists(ManifestFile))
+          File.Delete(ManifestFile);
+        using (StreamWriter file = new System.IO.StreamWriter(ManifestFile, true))
+        {
+          string[] bundles = manifest.GetAllAssetBundles();
+          List<string> _bundles = bundles.ToList<string>();
+          _bundles.Add(MainBundleName);
+          foreach (string bundle in _bundles)
+          {
+            string path = TargetPath + "/" + bundle ;
+            if (!File.Exists(path))
+              continue;
+            long size = new FileInfo(path).Length;
+            byte[] data = File.ReadAllBytes(path);
+            string hash = FileUtil.GetMD5Hash(data);
+            file.WriteLine(bundle + "," + size + "," + hash);
+          }
+        };
+      }
+      mainBundle.Unload(true);
+    }
+  }
+
+}
diff --git a/Assets/Scripts/Editor/BundleHelper.cs.meta b/Assets/Scripts/Editor/BundleHelper.cs.meta
new file mode 100644
index 0000000..673f75d
--- /dev/null
+++ b/Assets/Scripts/Editor/BundleHelper.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 9eb05f681b7bd80448b2f488711dad41
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/FileUtil.cs b/Assets/Scripts/FileUtil.cs
new file mode 100644
index 0000000..b0e9b8c
--- /dev/null
+++ b/Assets/Scripts/FileUtil.cs
@@ -0,0 +1,57 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.IO;
+using System;
+using UnityEngine;
+
+public class FileUtil {
+
+  public static string GetMD5Hash(byte[] data)
+  {
+    string strHash = "";
+    using (MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider())
+    {
+      byte[] bytesHash = md5.ComputeHash(data);
+      strHash = BitConverter.ToString(bytesHash);
+      strHash = strHash.Replace("-", "");
+    }
+    return strHash.ToLower();
+  }
+
+  public static string GetMD5Hash(string pathName)
+  {
+    if (!File.Exists(pathName))
+    {
+      Debug.LogError("GetMD5Hash Error, file not exist: " + pathName);
+      return "";
+    }
+    string strResult = "";
+    string strHash = "";
+
+    byte[] bytesHash;
+
+    FileStream fs = null;
+    using (MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider())
+    {
+      try
+      {
+        fs = new FileStream(pathName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+
+        bytesHash = md5.ComputeHash(fs);
+        fs.Close();
+        strHash = BitConverter.ToString(bytesHash);
+        strHash = strHash.Replace("-", "");
+
+        strResult = strHash;
+      }
+      catch (System.Exception ex)
+      {
+        Debug.LogError("read md5 file error :" + pathName + " e: " + ex.ToString());
+      }
+    }
+
+    return strResult.ToLower();
+  }
+
+}
diff --git a/Assets/Scripts/FileUtil.cs.meta b/Assets/Scripts/FileUtil.cs.meta
new file mode 100644
index 0000000..aeb1552
--- /dev/null
+++ b/Assets/Scripts/FileUtil.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 0481cdb792bfaac469dd9cd32f24af3a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/PathHelper.cs b/Assets/Scripts/PathHelper.cs
new file mode 100644
index 0000000..7c23dd6
--- /dev/null
+++ b/Assets/Scripts/PathHelper.cs
@@ -0,0 +1,41 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class PathHelper{
+  // 用于bundle读取的streaming路径
+  // 不需要加file://协议
+  public static string GetStreamingFullFilePath(string filePath)
+  {
+#if UNITY_ANDROID
+    return Application.dataPath + "!assets/" + filePath;
+#else
+		return Application.streamingAssetsPath + "/" + filePath;
+#endif
+  }
+
+  // 用于www读取的streaming路径
+  // 需要加file协议
+  public static string GetStreamingWWWFullFilePath(string filePath)
+  {
+#if UNITY_ANDROID
+    return Application.streamingAssetsPath + "/" + filePath;
+#else
+		return "file://" + Application.streamingAssetsPath + "/" + filePath;
+#endif
+  }
+
+  public static string GetPersistentFullFilePath(string filePath)
+  {
+    return Application.persistentDataPath + "/" + filePath;
+  }
+
+#if UNITY_IOS
+// 将文件从自动上传iCloud中排除
+public static void ExcludeFileFromiCloud(string filePath)
+{
+	string full = GetPersistentFullFilePath(filePath); 
+	UnityEngine.iOS.Device.SetNoBackupFlag(full);
+}
+#endif
+}
diff --git a/Assets/Scripts/PathHelper.cs.meta b/Assets/Scripts/PathHelper.cs.meta
new file mode 100644
index 0000000..f13fefb
--- /dev/null
+++ b/Assets/Scripts/PathHelper.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 9f866276720b96643a5cec178754bb40
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/ResManager.cs b/Assets/Scripts/ResManager.cs
new file mode 100644
index 0000000..ba47f8e
--- /dev/null
+++ b/Assets/Scripts/ResManager.cs
@@ -0,0 +1,273 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.IO;
+using UnityEngine;
+using UnityEngine.UI;
+using MEC;
+
+public class ResManager {
+
+  private struct BundleInfo{
+    public long size;
+    public string hash;
+  }
+
+  public static ResManager Instance
+  {
+    get
+    {
+      if (_instance == null)
+        _instance = new ResManager();
+      return _instance;
+    }
+  }
+  static ResManager _instance;
+
+  Test test;
+  string Content;
+
+  static string BundleRoot = "PackData";
+  static string ManifestBundleName = "PackData";
+  static string ManifestFileResName = "bundles"; // under Resources/bundles.manifest
+  static string ManifesteRemotePath = "bundles.manifest";
+#if UNITY_STANDALONE_WIN
+	static string cdnAddress = "http://localhost/bundles/"; // PC
+#elif UNITY_ANDROID
+	static string cdnAddress = "http://10.0.2.2/bundles/"; // AndroidEmu
+#endif
+
+  Dictionary<string, AssetBundle> CachedBundles = new Dictionary<string, AssetBundle>();
+  Dictionary<string, string> FileMapping = new Dictionary<string, string>();
+  AssetBundleManifest Manifest;
+
+#region 更新相关
+  // 本地streamingAssetsPath下的bundles数据，从固化的bundles.manifest中读取
+  Dictionary<string, BundleInfo> localBundles = new Dictionary<string, BundleInfo>();
+  // CDN上的bundles数据
+  Dictionary<string, BundleInfo> remoteBundles = new Dictionary<string, BundleInfo>();
+#endregion
+
+  public void Init(Test test)
+  {
+    this.test = test;
+    LoadLocalBundlesInfo();
+    Timing.Instance.RunCoroutineOnInstance(DownloadManifest());
+  }
+
+  void Print(string content , bool alert = false)
+  {
+    test.Print(content, alert);
+  }
+
+  public string ResContent(string path)
+  {
+    TextAsset text = Resources.Load(path) as TextAsset;
+    if (text == null)
+      return null;
+    return text.text;
+  }
+
+  public void ReadFileMapping()
+  {
+    AssetBundle bundle = LoadBundle("bundle00.ab"); // 不可以省略后缀
+    if (bundle == null)
+    {
+      string path = PathHelper.GetStreamingFullFilePath(BundleRoot + "/bundle00.ab");
+      Print("Bundle 为空, path = " + path, true);
+      return;
+    }
+    TextAsset text = bundle.LoadAsset<TextAsset>("fileMapping");
+    if (text == null)
+      return;
+    string content = text.text;
+    content = content.Replace("\r", string.Empty);
+    string[] lines = content.Split('\n');
+    Print("Load FileMapping:");
+    foreach (string line in lines)
+    {
+      string[] part = line.Split(',');
+      FileMapping.Add(part[0], part[1]);
+      Print(part[0] + "      " + part[1]);
+    }
+  }
+
+  /// <summary>
+  /// 刚开始进入游戏的时候要写入.manifest，用来后续对比更新
+  /// </summary>
+  public void LoadManifest()
+  {
+    AssetBundle bundle = LoadBundle(ManifestBundleName);
+    if (bundle == null)
+    {
+      Print("没有Manifest", true);
+      return;
+    }
+    Manifest = bundle.LoadAsset<AssetBundleManifest>("AssetBundleManifest");
+    if (Manifest == null)
+    {
+      Print("AssetBundleManifest", true);
+      return;
+    }
+    Print("All bundles:");
+    string[] bundleNames = Manifest.GetAllAssetBundles();
+    foreach (var bundleName in bundleNames)
+    {
+      Print(bundleName);
+    }
+  }
+
+  public AssetBundle LoadBundle(string name)
+  {
+    AssetBundle bundle;
+    if (CachedBundles.TryGetValue(name, out bundle))
+    {
+      return bundle;
+    }
+    string path = PathHelper.GetPersistentFullFilePath(BundleRoot + "/" + name);
+    Print(path);
+    if (!File.Exists(path))
+    {
+      Print("不在persistent里");
+      path = PathHelper.GetStreamingFullFilePath(BundleRoot + "/" + name);
+    }
+    bundle = AssetBundle.LoadFromFile(path);
+    if(bundle == null)
+      Print("是空的");
+    CachedBundles.Add(name, bundle);
+    return bundle;
+  }
+
+  public string GetBundleName(string assetName)
+  {
+    string bundleName;
+    FileMapping.TryGetValue(assetName, out bundleName);
+    return bundleName;
+  }
+
+  public string BundleContent(string resName)
+  {
+    string bundleName = GetBundleName(resName);
+    if (bundleName == null)
+      return null;
+    AssetBundle bundle = LoadBundle(bundleName);
+    if (bundle == null)
+      return null;
+    TextAsset text = bundle.LoadAsset<TextAsset>(resName);
+    if (text == null)
+      return null;
+    return text.text;
+  }
+
+  /// <summary>
+  /// 根据Resources/bundles.manifest读取本地bundle数据
+  /// </summary>
+  private void LoadLocalBundlesInfo()
+  {
+    TextAsset manifest = Resources.Load<TextAsset>(ManifestFileResName);
+    if(manifest == null)
+    {
+      Debug.LogError("本地Resources目录下没有bundles.manifest");
+      return;
+    }
+    string[] bundles = manifest.text.Replace("\r", string.Empty).Split('\n');
+    string[] info;
+    foreach(string bundle in bundles)
+    {
+      info = bundle.Split(',');
+      if (info.Length != 3)
+        continue;
+      BundleInfo bi = new BundleInfo();
+      bi.size = long.Parse(info[1]);
+      bi.hash = info[2];
+      localBundles.Add(info[0], bi);
+    }
+  }
+
+  IEnumerator<float> DownloadManifest()
+  {
+    WWW www = new WWW(cdnAddress + ManifesteRemotePath);
+    while(!www.isDone)
+    {
+      yield return Timing.WaitForSeconds(0.01f);
+    }
+    string content = www.text;
+    string[] bundles = content.Replace("\r", string.Empty).Split('\n');
+    string[] info;
+    foreach (string bundle in bundles)
+    {
+      info = bundle.Split(',');
+      if (info.Length != 3)
+        continue;
+      BundleInfo bi = new BundleInfo();
+      bi.size = long.Parse(info[1]);
+      bi.hash = info[2];
+      remoteBundles.Add(info[0], bi);
+    }
+    // Download bundles
+    Timing.Instance.RunCoroutineOnInstance(DownloadBundles());
+  }
+
+  IEnumerator<float> DownloadBundles()
+  {
+    List<string> downloadBundles = new List<string>();
+    foreach(var b in remoteBundles)
+    {
+      string bundleName = b.Key;
+      long size = b.Value.size;
+      string hash = b.Value.hash;
+      BundleInfo localInfo;
+      //1. 剔除首包中就有的
+      if (localBundles.TryGetValue(bundleName, out localInfo) && localInfo.hash == hash)
+        continue;
+      //2. 剔除上次小版本更新下载下来的
+      string persistentPath = PathHelper.GetPersistentFullFilePath(BundleRoot + "/" + bundleName);
+      if(File.Exists(persistentPath))
+      {
+        long lastsize = new FileInfo(persistentPath).Length;
+        if(lastsize == size)
+        {
+          string lasthash = FileUtil.GetMD5Hash(persistentPath);
+          if (lasthash == "")
+          {
+            Debug.LogError("计算md5出错");
+          }
+          else if (lasthash == hash)
+            continue;
+        }
+      }
+      downloadBundles.Add(bundleName);
+    }
+    //3. 下载
+    foreach (string bundle in downloadBundles)
+    {
+      WWW www = new WWW(cdnAddress + bundle);
+      while(!www.isDone)
+      {
+        yield return Timing.WaitForSeconds(0.01f);
+      }
+      // save to persistentDataPath
+      Print("->下载" + bundle + "完毕");
+      byte[] data = www.bytes;
+			string folder = PathHelper.GetPersistentFullFilePath(BundleRoot);
+			if (!Directory.Exists(folder))
+				Directory.CreateDirectory(folder);
+      File.WriteAllBytes(folder + "/" + bundle, data);
+    }
+
+    Print("Bundle 下载完毕，共下载" + downloadBundles.Count + "个");
+    Print("------------------------------------------------------------------------");
+    // test test
+    ResManager.Instance.ReadFileMapping();
+    ResManager.Instance.LoadManifest();
+    // Done 
+    OnDownloaded();
+  }
+
+  void OnDownloaded()
+  {
+    if (test != null)
+      test.Testing();
+  }
+
+}
diff --git a/Assets/Scripts/ResManager.cs.meta b/Assets/Scripts/ResManager.cs.meta
new file mode 100644
index 0000000..0e58ce6
--- /dev/null
+++ b/Assets/Scripts/ResManager.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 4014a0d4dcc96c744acda2162e08e6cd
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Assets/Scripts/Test.cs b/Assets/Scripts/Test.cs
new file mode 100644
index 0000000..da32140
--- /dev/null
+++ b/Assets/Scripts/Test.cs
@@ -0,0 +1,56 @@
+using System.Collections;
+using System.Collections.Generic;
+using System.Security.Cryptography;
+using System.IO;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class Test : MonoBehaviour {
+
+  public Text text;
+  string Content;
+
+  public void Print(string content, bool alert = false)
+  {
+    if (content == null)
+      content = "空";
+    if(alert)
+      Content += "<Color=#ff0000ff>";
+    Content += content + "\n";
+    if(alert)
+      Content += "</Color>";
+    text.text = Content;
+  }
+
+  private void Awake()
+  {
+    ResManager.Instance.Init(this);
+  }
+
+  public void Testing()
+  {
+    Print("----------------------------------------------------------------------------------------");
+    Print("Application.dataPath=" + Application.dataPath);
+    Print("Application.streamingAssetsPath=" + Application.streamingAssetsPath);
+    Print("Application.persistentDataPath=" + Application.persistentDataPath);
+    Print("Application.temporaryCachePath=" + Application.temporaryCachePath);
+    Print("----------------------------------------------------------------------------------------");
+    Print("读取Assets/Resources/res1.txt ， 内容是");
+    Print(ResManager.Instance.ResContent("res1"));
+    Print("读取Assets/Resources/SubFolder/res1.txt ， 内容是");
+    Print(ResManager.Instance.ResContent("SubFolder/res1"));
+    Print("读取Assets/Art/Resources/res5.txt ， 内容是");
+    Print(ResManager.Instance.ResContent("res5"));
+    Print("----------------------------------------------------------------------------------------");
+    // AssetBundle.LoadAsset()可以省略后缀
+    Print("读取Assets/Files/file1.txt ， 内容是");
+    Print(ResManager.Instance.BundleContent("file1.txt"));
+    Print(ResManager.Instance.BundleContent("file1"));
+    Print("读取Assets/Files/file1.abc， 内容是");
+    Print(ResManager.Instance.BundleContent("file1.abc"));
+    Print("读取Assets/Files/file1.bcd， 内容是");
+    Print(ResManager.Instance.BundleContent("file1.bcd"));
+    Print("说明进Bundle的资源不含后缀的资源名字不能冲突", true);
+  }
+
+}
diff --git a/Assets/Scripts/Test.cs.meta b/Assets/Scripts/Test.cs.meta
new file mode 100644
index 0000000..9c5d14a
--- /dev/null
+++ b/Assets/Scripts/Test.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 97aee000e53f1464bbd45e96b6ea0f9a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: