AssetBundleManager

//------------------------------------------------------------------------------
// <auto-generated>
//     This code was generated by a tool.
//     Runtime Version:4.0.30319.42000
//
//     Changes to this file may cause incorrect behavior and will be lost if
//     the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
using System;
using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class AssetBundleManager : MonoBehaviour
{

  public class CharacterBundle
  {
    public CharacterBundle(GameObject p_model, Texture2D p_icon, Texture2D p_sprite, bool p_isYoutubeCharacter)
    {
      model = p_model;
      icon = p_icon;
      sprite = p_sprite;
      isYoutubeCharacter = p_isYoutubeCharacter;
    }

    void MakeWarningsGoAway()
    {
      print(model.ToString() + icon.ToString() + sprite.ToString() + isYoutubeCharacter.ToString() + " ");
    }

    public GameObject model;
    public Texture2D icon;
    public Texture2D sprite;
    public bool isYoutubeCharacter;
  }

  private class ABInfo
  {
        public ABInfo(string p_url, int p_version, int p_isYoutubeCharacter)
    {
      url = p_url;
      version = p_version;
      isYoutubeCharacter = p_isYoutubeCharacter;
    }

    public string url;
    public int version;
    public int isYoutubeCharacter;
  }

  enum DownloadState { NotStarted, Downloading, Done };

  /// <summary>
  /// URL for asset list .txt document.
  /// Format:
  /// url version
  /// www.url.url/filename.unity3d 4
  /// </summary>
  string remoteAssetListURL = "https://s3-us-west-1.amazonaws.com/deadrealm/files.txt";

  string localAssetListURL = "CharacterBundles/localCharacterBundles.txt";

  static DownloadState downloadState;

  List<CharacterBundle> characterBundles;

  [SerializeField]
  bool downloadOnStart = true;

  public dfLabel downloadLabel;

  bool newestFilesDownloaded = false;

  static AssetBundleManager s_instance;
  public static AssetBundleManager Instance
  {
    get
    {
      if (s_instance != null)
      {
        return s_instance;
      }
      else {
        Debug.LogError("No AssetBundleManager in scene");
        return null;
      }
    }
  }

  void Awake()
  {
    DontDestroyOnLoad(gameObject);
    s_instance = this;

    downloadLabel.gameObject.SetActive(false);

    Caching.CleanCache();

    if (downloadOnStart)
    {
      StartDownload();
    }

  }

  void Update()
  {
    // Set to true if the current player downloaded all available characters
    //GHGameManager.LobbyManager.SetCurrentLobbyCustCharDledState(downloadState == DownloadState.Done);
  }

  /// <summary>
  /// Gets the uninstatiated character bundles.
  /// </summary>
  /// <returns>The character bundles.</returns>
  public static List<CharacterBundle> GetCharacterBundles()
  {
    return Instance.characterBundles;
  }

  /// <summary>
  /// Converts and returns instantiated character bundles into FBXImportData.
  /// </summary>
  /// <returns>The FBX import data.</returns>
  public static List<GHFBXImportData> GetFBXImportData()
  {
    List<GHFBXImportData> importData = new List<GHFBXImportData>();

    if (Instance.characterBundles == null) { Debug.LogError("Charbundles are null"); }

    List<CharacterBundle> characterBundles = Instance.characterBundles;
    for (int i = 0; i < characterBundles.Count; i++)
    {
      GameObject character = (GameObject)Instantiate(characterBundles[i].model, Vector3.one * 9999f, Quaternion.identity);

//      foreach(Renderer rend in character.GetComponentsInChildren<Renderer>()) {
//          Material[] mats = rend.sharedMaterials;
//          string[] shaders =  new string[mats.Length];
//
//          for( int j = 0; j < mats.Length; j++)
//          {
//              shaders[j] = mats[j].shader.name;
//          }
//
//          for( int j = 0; j < mats.Length; j++)
//          {
//              mats[j].shader = Shader.Find(shaders[j]);
//          }
//      }

        GHFBXImportData data = new GHFBXImportData();

      //Get Avatar
      data.avatar = character.GetComponent<Animator>().avatar;
      if (data.avatar == null)
      {
        Debug.LogError("Can't find Avatar");
        return null;
      }

      //Remove Animator
      DestroyImmediate(character.GetComponent<Animator>());
      if (data.avatar == null)
      {
        Debug.LogError("Avatar deleted");
        return null;
      }

      //Get Transforms
      data.modelTransforms = character.GetComponentsInChildren<Transform>();

      // Get the name, icon, and sprite for character select screen
      data.charName = character.gameObject.name.Replace("(Clone)", "");
      data.gridCellIcon = characterBundles[i].icon;
      data.hoverSprite = characterBundles[i].sprite;

      data.isYoutubeCharacter = characterBundles[i].isYoutubeCharacter;

      importData.Add(data);
    }
    return importData;
  }
    /// <summary>
    /// Checks the current version of downloaded characters against the newest on the servers.
    /// </summary>
    /// <returns><c>true</c>, if download for newest was checked, <c>false</c> otherwise.</returns>
    public static bool CheckDownloadForNewest() {
        Instance.StartCoroutine(Instance.CheckDownloadForNewestInternal());
        return Instance.newestFilesDownloaded;
    }

    IEnumerator CheckDownloadForNewestInternal() {
        newestFilesDownloaded = false;
        using (WWW wwwFileList = new WWW(remoteAssetListURL))
        {
            yield return wwwFileList;
            if(wwwFileList.error != null) {
                Debug.LogError("wwwFileList download had an error:" + wwwFileList.error);
                yield break;
            }

            // Parse asset list into ABInfos - URL, Version
            List<ABInfo> assetBundleInfos = new List<ABInfo>();
            string[] assetBundlesURLs = wwwFileList.text.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);

            foreach (string url in assetBundlesURLs)
            {
                string[] info = url.Split(new string[] { " ", "\t" }, StringSplitOptions.RemoveEmptyEntries);
                assetBundleInfos.Add(new ABInfo(info[0], int.Parse(info[1]), int.Parse(info[2])));
            }

            // Wait for the Caching system to be ready
            while (!Caching.ready)
                yield return null;

            foreach(ABInfo abInfo in assetBundleInfos) {
                if(!Caching.IsVersionCached(abInfo.url, abInfo.version)) {
                    newestFilesDownloaded = false;
                    yield break;
                }
            }
            newestFilesDownloaded = true;
        }
    }

  /// <summary>
  /// Starts the download from assetListURL for character bundles.
  /// </summary>
  public static void StartDownload()
  {
    if (downloadState != DownloadState.Downloading)
    {
        if(Instance.downloadLabel != null) {
            Instance.downloadLabel.gameObject.SetActive(true);
            Instance.UpdateDownloadText(0);
        }
        Instance.StartCoroutine(Instance.RetryDownload());
    }
  }

    /// <summary>
    /// Determines whether the character bundles are done downloading.
    /// </summary>
    /// <returns><c>true</c> if the download is done; otherwise, <c>false</c>.</returns>
    public static bool IsDownloadDone()
    {
        return (downloadState == DownloadState.Done);
    }

    IEnumerator RetryDownload() {
        downloadState = DownloadState.Downloading;
        while(downloadState == DownloadState.Downloading) {
            yield return StartCoroutine(DownloadAndCache());
            if(downloadState == DownloadState.Downloading) {
                Debug.LogError("Download failed. Trying again in 3 seconds.");
                yield return new WaitForSeconds(3f);
            }
        }
        downloadLabel.gameObject.SetActive(false);
    }

  IEnumerator DownloadAndCache()
  {
        {
            //Local characters
            List<ABInfo> assetBundleInfos = new List<ABInfo>();
            TextAsset localAssetList = (TextAsset)Resources.Load (localAssetListURL, typeof(TextAsset));
            if(localAssetList == null) {
                Debug.LogError("Can't find Resources/" + localAssetListURL, this);
                yield break;
            }
            string[] assetBundlesURLs = localAssetList.text.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);

            foreach (string url in assetBundlesURLs)
            {
                string[] info = url.Split(new string[] { " ", "\t" }, StringSplitOptions.RemoveEmptyEntries);
                assetBundleInfos.Add(new ABInfo(info[0], int.Parse(info[1]), int.Parse (info[2])));
            }

            // Wait for the Caching system to be ready
//          while (!Caching.ready)
//              yield return null;

//          int downloaded = -1;
            // Load all character bundles from asset list
            characterBundles = new List<CharacterBundle>();
            foreach (ABInfo info in assetBundleInfos)
            {
////                UpdateDownloadText((int)((float)downloaded/(float)assetBundleInfos.Count * 100f));
////                downloaded++;
//
//
//              using (WWW www = WWW.LoadFromCacheOrDownload(info.url, info.version))
//              {
//                  yield return www;
//                  if(www.error != null) {
//                      Debug.LogError("WWW download had an error:" + www.error);
//                      yield break;
//                  }
//
                    AssetBundle bundle = Resources.Load(info.url) as AssetBundle;
//
                    //Parse asset bundle for character prefab
                    GameObject model = (GameObject)bundle.LoadAll(typeof(GameObject))[0];
                    Debug.Log(bundle.LoadAll(typeof(GameObject)).Length + " models in bundle");

                    //Parse asset bundle for Icon and Sprite
                    UnityEngine.Object[] images = bundle.LoadAll(typeof(Texture2D));
                    Texture2D icon = null, sprite = null;
                    for (int i = 0; i < images.Length; i++)
                    {
                        if (images[i].name.ToLower().Contains("icon"))
                            icon = (Texture2D)images[i];
                    }
                    for (int i = 0; i < images.Length; i++)
                    {
                        if (images[i].name.ToLower().Contains("sprite") || images[i].name.ToLower().Contains("portrait"))
                            sprite = (Texture2D)images[i];
                    }

                    characterBundles.Add(new CharacterBundle(model, icon, sprite, info.isYoutubeCharacter > 0));
                    //          Debug.Log(
                    //            characterBundles[characterBundles.Count - 1].model.name + "loaded with " +
                    //            characterBundles[characterBundles.Count - 1].icon.name + "and " +
                    //            characterBundles[characterBundles.Count - 1].sprite.name
                    //            );
                    // Unload the AssetBundles compressed contents to conserve memory
                    //bundle.Unload(false); //TODO unload later
                }
//          }
//      }
    }

    //Remote characters
    using (WWW wwwFileList = new WWW(remoteAssetListURL))
    {
        //Download file list of character bundles
        yield return wwwFileList;
        if(wwwFileList.error != null) {
            Debug.LogError("wwwFileList download had an error:" + wwwFileList.error);
            yield break;
        }

      // Parse asset list into ABInfos - URL, Version
      List<ABInfo> assetBundleInfos = new List<ABInfo>();
      string[] assetBundlesURLs = wwwFileList.text.Split(new string[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries);

      foreach (string url in assetBundlesURLs)
      {
        string[] info = url.Split(new string[] { " ", "\t" }, StringSplitOptions.RemoveEmptyEntries);
        assetBundleInfos.Add(new ABInfo(info[0], int.Parse(info[1]), int.Parse (info[2])));
      }

      // Wait for the Caching system to be ready
      while (!Caching.ready)
        yield return null;

      int downloaded = -1;
      // Load all character bundles from asset list
      characterBundles = new List<CharacterBundle>();
      foreach (ABInfo info in assetBundleInfos)
      {
        UpdateDownloadText((int)((float)downloaded/(float)assetBundleInfos.Count * 100f));
        downloaded++;
        using (WWW www = WWW.LoadFromCacheOrDownload(info.url, info.version))
        {
          yield return www;
          if(www.error != null) {
            Debug.LogError("WWW download had an error:" + www.error);
            yield break;
          }

          AssetBundle bundle = www.assetBundle;

          //Parse asset bundle for character prefab
          GameObject model = (GameObject)bundle.LoadAll(typeof(GameObject))[0];
          Debug.Log(bundle.LoadAll(typeof(GameObject)).Length + " models in bundle");

          //Parse asset bundle for Icon and Sprite
          UnityEngine.Object[] images = bundle.LoadAll(typeof(Texture2D));
          Texture2D icon = null, sprite = null;
          for (int i = 0; i < images.Length; i++)
          {
            if (images[i].name.ToLower().Contains("icon"))
              icon = (Texture2D)images[i];
          }
          for (int i = 0; i < images.Length; i++)
          {
            if (images[i].name.ToLower().Contains("sprite") || images[i].name.ToLower().Contains("portrait"))
              sprite = (Texture2D)images[i];
          }

          characterBundles.Add(new CharacterBundle(model, icon, sprite, info.isYoutubeCharacter > 0));
//          Debug.Log(
//            characterBundles[characterBundles.Count - 1].model.name + "loaded with " +
//            characterBundles[characterBundles.Count - 1].icon.name + "and " +
//            characterBundles[characterBundles.Count - 1].sprite.name
//            );
          // Unload the AssetBundles compressed contents to conserve memory
          //bundle.Unload(false); //TODO unload later
        }
      }
    }

    string loaded = characterBundles.Count + " characters loaded: ";
    for (int i = 0; i < characterBundles.Count; i++)
    {
      loaded += characterBundles[i].model.name + (i == characterBundles.Count - 1 ? "" : ", ");
    }
    Debug.Log(loaded, this);

    downloadState = DownloadState.Done;

    // Set to true if the current player downloaded all available characters
    GHGameManager.LobbyManager.SetCurrentLobbyCustCharDledState(downloadState == DownloadState.Done);
  }

    void UpdateDownloadText(int percentage) {
        downloadLabel.Text = "Downloading new Characters: " + percentage + "%";
    }
}