save_asset_bundle_version_data

LoadFromCacheOrDownload()를 이용해서 asset_bundle 다운받을때, 버전 정보는 서버에 있는 애셋과 관련이 없고 기존에 로컬에 캐쉬해둔 애셋들을 살펴보는 데에 사용되는 것 같다.

따라서

애셋번들 패치 순서

는
1) 서버에서 최신 애셋 버전 리스트 얻음
2) 로컬에 저장된 정보 로드
3) 로컬보다 서버가 최신일경우 다운로드
4) 로컬 정보 갱신
의 순서로 해야할 듯하다.

이 페이지에서는 위의 순서중 2)번 사항을 테스트 한다.
-> 잘못생각했음
1) 서버에서 최신 애셋 버전 리스트 얻음
2) 1)의 데이터 그대로 LoadFromCacheOrDownload() 사용하여 애셋 번들 로드.
즉 로컬에 애셋번들 각각의 버전 정보를 굳이(ui용으로 필요할런지..) 따로 유지할 필요가 없음 ;;;

유니티에서 데이터를 로컬에 저장하는 방법

에는
1) PlayerPrefs 이용 하여 걍 저장
2) FileStream 이용 하여 파일로 저장
3) 파서(XmlDocument,  XmlSerializer등)를 이용해 xml 파일로 저장
등이 있는데 2)번 으로 테스트

AssetBundleInfo.cs

using UnityEngine; using System.Collections; [System.Serializable] public class AssetBundleInfo { public enum e_recent_info_from { local, server } public string m_Name; public int m_Version; public string m_Path; public e_recent_info_from m_recent_info_from; }
[System.Serializable] 를 해줘야 BinaryFormatter를 사용하여 Serialize, Deserialize 할 수 있음

AssetBundleManager.cs

using UnityEngine; using System.Collections; using System.Collections.Generic; using System.Runtime.Serialization.Formatters.Binary; using System.IO; public class AssetBundleManager : MonoBehaviour { //public List public Dictionary<string assetbundleinfo=""> m_local_asset_bundle_info_list = new Dictionary<string assetbundleinfo="">(); public Dictionary<string assetbundleinfo=""> m_server_asset_bundle_info_list = new Dictionary<string assetbundleinfo="">(); public Dictionary<string assetbundleinfo=""> m_current_asset_bundle_info_list = new Dictionary<string assetbundleinfo="">(); public bool m_info_loaded = false; private const string mc_file_name = "asset_bundle_info.data"; //singleton static private AssetBundleManager m_singleton; static public AssetBundleManager singleton { get { return m_singleton; } } void Awake() { m_singleton = this; load_data (); } private void load_data() { receive_asset_bundle_info_list_from_server(); load_local_asset_bundle_info_list(); refresh_current_asset_bundle_info_list(); m_info_loaded = true; } public void load_local_asset_bundle_info_list() { m_local_asset_bundle_info_list.Clear(); if(File.Exists(Application.persistentDataPath + "/" + mc_file_name)) { BinaryFormatter bf = new BinaryFormatter(); FileStream file = File.Open(Application.persistentDataPath + "/" + mc_file_name, FileMode.Open); m_local_asset_bundle_info_list = (Dictionary<string assetbundleinfo="">)bf.Deserialize(file); file.Close(); } } public void receive_asset_bundle_info_list_from_server() { m_server_asset_bundle_info_list.Clear(); // test용으로 임의 설정 AssetBundleInfo _z_info_1 = new AssetBundleInfo(); _z_info_1.m_Name = "avatar"; _z_info_1.m_Path = "path1"; _z_info_1.m_Version = 1; m_server_asset_bundle_info_list.Add(_z_info_1.m_Name, _z_info_1); AssetBundleInfo _z_info_2 = new AssetBundleInfo(); _z_info_2.m_Name = "ui"; _z_info_2.m_Path = "path2"; _z_info_2.m_Version = 1; m_server_asset_bundle_info_list.Add(_z_info_2.m_Name, _z_info_2); } private void refresh_current_asset_bundle_info_list() { m_current_asset_bundle_info_list.Clear(); AssetBundleInfo _z_info_1 = new AssetBundleInfo(); _z_info_1.m_Name = "avatar"; _z_info_1.m_Path = "path1"; m_current_asset_bundle_info_list.Add(_z_info_1.m_Name, _z_info_1); AssetBundleInfo _z_info_2 = new AssetBundleInfo(); _z_info_2.m_Name = "ui"; _z_info_2.m_Path = "path2"; m_current_asset_bundle_info_list.Add(_z_info_2.m_Name, _z_info_2 ); foreach(AssetBundleInfo _z_current_info in AssetBundleManager.singleton.m_current_asset_bundle_info_list.Values) { bool _z_exist_local_info = m_local_asset_bundle_info_list.ContainsKey( _z_current_info.m_Name ); bool _z_exist_server_info = m_server_asset_bundle_info_list.ContainsKey( _z_current_info.m_Name ); if( false == _z_exist_server_info ) { Debug.Log ("info doesn't exit in server."); continue; } _z_current_info.m_recent_info_from = AssetBundleInfo.e_recent_info_from.server; AssetBundleInfo _z_server_info = m_server_asset_bundle_info_list[_z_current_info.m_Name]; int _z_current_version = _z_server_info.m_Version; if( _z_exist_local_info ) { AssetBundleInfo _z_local_info = m_local_asset_bundle_info_list[_z_current_info.m_Name]; if( _z_current_version <= _z_local_info.m_Version) { _z_current_info.m_recent_info_from = AssetBundleInfo.e_recent_info_from.local; _z_current_version = _z_local_info.m_Version; } } _z_current_info.m_Version = _z_current_version; } } public void save_current_asset_bundle_info_list() { BinaryFormatter _z_bf = new BinaryFormatter(); FileStream file = File.Create (Application.persistentDataPath + "/" + mc_file_name); _z_bf.Serialize(file, m_current_asset_bundle_info_list); file.Close(); } } ...

save_data_main.cs

using UnityEngine; using System.Collections; public class save_data_main : MonoBehaviour { void OnGUI() { if( false == AssetBundleManager.singleton.m_info_loaded ) { return; } GUILayout.BeginArea(new Rect(0,0,Screen.width, Screen.height)); GUILayout.BeginHorizontal(); GUILayout.FlexibleSpace(); GUILayout.BeginVertical(); GUILayout.FlexibleSpace(); GUILayout.Box("Local Asset Bundle Data List"); foreach(AssetBundleInfo _z_info in AssetBundleManager.singleton.m_local_asset_bundle_info_list.Values) { GUILayout.BeginHorizontal(); GUILayout.Box(_z_info.m_Name); GUILayout.Box(_z_info.m_Path); GUILayout.Box(_z_info.m_Version.ToString()); GUILayout.EndHorizontal(); } GUILayout.Space(10); GUILayout.Box("Server Asset Bundle Data List"); foreach(AssetBundleInfo _z_info in AssetBundleManager.singleton.m_server_asset_bundle_info_list.Values) { GUILayout.BeginHorizontal(); GUILayout.Box(_z_info.m_Name); GUILayout.Box(_z_info.m_Path); GUILayout.Box(_z_info.m_Version.ToString()); GUILayout.EndHorizontal(); } GUILayout.Space(10); GUILayout.Box("current Asset Bundle Data List"); foreach(AssetBundleInfo _z_info in AssetBundleManager.singleton.m_current_asset_bundle_info_list.Values) { GUILayout.BeginHorizontal(); GUILayout.Box(_z_info.m_Name); GUILayout.Box(_z_info.m_Path); GUILayout.Box(_z_info.m_Version.ToString()); GUILayout.Box(_z_info.m_recent_info_from.ToString()); GUILayout.EndHorizontal(); } GUILayout.Space(10); if(GUILayout.Button("SaveData")) { AssetBundleManager.singleton.save_current_asset_bundle_info_list(); } GUILayout.FlexibleSpace(); GUILayout.EndVertical(); GUILayout.FlexibleSpace(); GUILayout.EndHorizontal(); GUILayout.EndArea(); } }