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xianyi
685
Assets/TcgEngine/Scripts/Network/ResourceDownloader.cs
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685
Assets/TcgEngine/Scripts/Network/ResourceDownloader.cs
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@@ -0,0 +1,685 @@
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Compression;
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using System.Threading.Tasks;
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using UnityEngine;
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using UnityEngine.Networking;
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namespace TcgEngine
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{
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/// <summary>
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/// 资源下载管理器
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/// </summary>
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public class ResourceDownloader : MonoBehaviour
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{
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[Header("Download Settings")]
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public string serverUrl = "https://cardcdn.ambigrat.com";
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public string resourcesEndpoint = "/test/{version}.zip";
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public string versionEndpoint = "/api/version";
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[Header("URL Pattern Options")]
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[Tooltip("支持的占位符: {version} - 版本号")]
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public bool useVersionInFilename = true;
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[Tooltip("如果启用，会先检查版本化文件是否存在")]
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public bool validateVersionedUrl = false;
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[Tooltip("调试模式：当版本接口失败时，使用固定版本号")]
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public bool debugMode = true;
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[Tooltip("调试模式下使用的固定版本号")]
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public string debugVersion = "0.0.1";
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[Tooltip("调试模式下使用的固定MD5值")]
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public string debugMd5 = "ceb24758054d6dcf1e23ddb41811a525";
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private string currentVersion = "0.0.0";
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private string currentMd5 = "";
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private string targetVersion = "0.0.1";
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private string targetMd5 = "";
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private string persistentDataPath;
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private string spritesPath;
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public static ResourceDownloader instance;
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// 事件
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public event Action<float> OnDownloadProgress;
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public event Action<string> OnDownloadComplete;
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public event Action<string> OnDownloadError;
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public event Action<float> OnExtractProgress;
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public event Action OnExtractComplete;
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private void Awake()
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{
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if (instance == null)
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{
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instance = this;
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DontDestroyOnLoad(gameObject);
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InitializePaths();
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}
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else
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{
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// 如果已经存在实例，销毁这个重复的组件
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Debug.LogWarning("ResourceDownloader instance already exists, destroying duplicate");
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Destroy(gameObject);
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}
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}
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private void InitializePaths()
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{
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persistentDataPath = Application.persistentDataPath;
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spritesPath = Path.Combine(persistentDataPath, "Sprites");
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// 确保目录存在
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if (!Directory.Exists(spritesPath))
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{
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Directory.CreateDirectory(spritesPath);
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}
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LoadCurrentVersion();
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}
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/// <summary>
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/// 检查是否需要更新资源
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/// </summary>
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public async Task<bool> CheckForUpdates()
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{
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try
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{
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Debug.Log($"Starting update check. Current version: {currentVersion}, Current MD5: {currentMd5}");
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var serverVersionData = await GetServerVersionData();
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if (serverVersionData == null || string.IsNullOrEmpty(serverVersionData.version))
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{
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Debug.LogWarning("Failed to get server version");
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// 调试模式：版本接口失败时使用固定版本号
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if (debugMode)
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{
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Debug.Log($"Debug mode enabled: using fixed version {debugVersion} and MD5 {debugMd5}");
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targetVersion = debugVersion;
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targetMd5 = debugMd5;
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return await CheckVersionAndMd5();
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}
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return false;
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}
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targetVersion = serverVersionData.version;
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targetMd5 = serverVersionData.md5 ?? "";
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Debug.Log($"Server version: {targetVersion}, MD5: {targetMd5}, Local version: {currentVersion}, Local MD5: {currentMd5}");
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return await CheckVersionAndMd5();
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}
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catch (Exception e)
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{
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Debug.LogError($"Error checking for updates: {e.Message}");
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// 调试模式：出现异常时也尝试使用固定版本
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if (debugMode)
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{
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Debug.Log($"Debug mode: attempting to use version {debugVersion} despite error");
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targetVersion = debugVersion;
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targetMd5 = debugMd5;
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return await CheckVersionAndMd5();
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}
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return false;
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}
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}
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/// <summary>
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/// 检查版本和MD5，决定是否需要下载
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/// </summary>
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private async Task<bool> CheckVersionAndMd5()
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{
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// 检查版本是否不同
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if (currentVersion != targetVersion)
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{
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Debug.Log($"Version mismatch. Current: {currentVersion}, Target: {targetVersion}");
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return true;
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}
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// 检查本地文件是否存在
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if (!Directory.Exists(spritesPath) || Directory.GetFiles(spritesPath, "*", SearchOption.AllDirectories).Length == 0)
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{
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Debug.Log("Local sprites not found, need to download");
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return true;
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}
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// 版本相同，检查MD5
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if (string.IsNullOrEmpty(targetMd5))
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{
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Debug.Log("No target MD5 provided, assuming files are correct");
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return false;
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}
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Debug.Log($"版本匹配，开始检查MD5校验...");
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Debug.Log($"当前版本: {currentVersion}");
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Debug.Log($"目标版本: {targetVersion}");
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Debug.Log($"保存的MD5: {currentMd5}");
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Debug.Log($"目标MD5: {targetMd5}");
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string localMd5 = await CalculateDirectoryMd5(spritesPath);
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if (localMd5 != targetMd5)
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{
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Debug.LogWarning($"🚨 MD5校验失败！");
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Debug.LogWarning($"本地计算MD5: {localMd5}");
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Debug.LogWarning($"期望的MD5: {targetMd5}");
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Debug.Log("正在删除损坏的文件并重新下载...");
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// 删除损坏的文件
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if (Directory.Exists(spritesPath))
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{
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Directory.Delete(spritesPath, true);
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}
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return true; // 需要重新下载
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}
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Debug.Log($"✅ MD5校验通过: {localMd5}");
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Debug.Log("文件完整性验证成功，无需下载");
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return false; // 无需下载
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}
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/// <summary>
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/// 计算目录下所有文件的MD5和
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/// </summary>
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private async Task<string> CalculateDirectoryMd5(string directoryPath)
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{
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try
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{
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if (!Directory.Exists(directoryPath))
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return "";
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var files = Directory.GetFiles(directoryPath, "*", SearchOption.AllDirectories);
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if (files.Length == 0)
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return "";
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Debug.Log($"=== 开始计算目录MD5 ===");
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Debug.Log($"目录路径: {directoryPath}");
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Debug.Log($"文件数量: {files.Length}");
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// 按路径排序确保一致性
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Array.Sort(files);
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// 打印前几个文件作为示例
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Debug.Log("文件列表示例:");
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for (int i = 0; i < Math.Min(5, files.Length); i++)
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{
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string relativePath = files[i].Substring(directoryPath.Length + 1).Replace('\\', '/');
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Debug.Log($" [{i+1}] {relativePath}");
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}
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if (files.Length > 5)
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{
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Debug.Log($" ... 还有 {files.Length - 5} 个文件");
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}
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using (var md5 = System.Security.Cryptography.MD5.Create())
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{
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foreach (string file in files)
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{
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// 只处理相对路径部分
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string relativePath = file.Substring(directoryPath.Length + 1).Replace('\\', '/');
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byte[] pathBytes = System.Text.Encoding.UTF8.GetBytes(relativePath);
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md5.TransformBlock(pathBytes, 0, pathBytes.Length, null, 0);
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// 读取文件内容
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byte[] fileBytes = File.ReadAllBytes(file);
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md5.TransformBlock(fileBytes, 0, fileBytes.Length, null, 0);
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// 每10个文件yield一次，避免阻塞
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if (Array.IndexOf(files, file) % 10 == 0)
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{
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await Task.Yield();
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}
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}
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// 完成哈希计算
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md5.TransformFinalBlock(new byte[0], 0, 0);
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string result = BitConverter.ToString(md5.Hash).Replace("-", "").ToLowerInvariant();
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Debug.Log($"=== MD5计算完成 ===");
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Debug.Log($"本地计算的MD5: {result}");
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Debug.Log($"目标MD5: {targetMd5}");
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Debug.Log($"MD5匹配: {(result == targetMd5 ? "✅ 是" : "❌ 否")}");
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Debug.Log($"===================");
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return result;
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}
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}
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catch (Exception e)
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{
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Debug.LogError($"Error calculating directory MD5: {e.Message}");
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return "";
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}
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}
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/// <summary>
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/// 构建版本化的下载URL
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/// </summary>
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private string BuildVersionedDownloadUrl(string version)
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{
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string targetFileName;
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if (!useVersionInFilename)
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{
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// 不使用版本化文件名时，统一使用"sprites"
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targetFileName = "sprites";
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}
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else if (string.IsNullOrEmpty(version))
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{
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// 如果版本为空，使用调试版本
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targetFileName = debugVersion;
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}
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else
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{
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// 使用实际版本号
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targetFileName = version;
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}
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string endpoint = resourcesEndpoint.Replace("{version}", targetFileName);
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string url = serverUrl + endpoint;
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Debug.Log($"Built download URL: {url} (version: {version}, filename: {targetFileName})");
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return url;
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}
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/// <summary>
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/// 验证版本化URL是否存在（可选）
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/// </summary>
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private async Task<bool> ValidateVersionedUrl(string url)
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{
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if (!validateVersionedUrl)
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return true;
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try
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{
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using (UnityWebRequest request = UnityWebRequest.Head(url))
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{
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var operation = request.SendWebRequest();
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while (!operation.isDone)
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{
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await Task.Yield();
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}
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if (request.result == UnityWebRequest.Result.Success)
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{
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Debug.Log($"Validated versioned URL: {url}");
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return true;
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}
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else
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{
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Debug.LogWarning($"Versioned URL not found: {url} - {request.error}");
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return false;
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}
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}
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}
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catch (Exception e)
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{
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Debug.LogError($"Error validating URL {url}: {e.Message}");
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return false;
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}
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}
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/// <summary>
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/// 获取服务器版本数据
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/// </summary>
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private async Task<ResourceVersionResponse> GetServerVersionData()
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{
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// 从NetworkData获取游戏服务器地址
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string gameServerUrl = NetworkData.Get().api_url;
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if (string.IsNullOrEmpty(gameServerUrl))
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{
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Debug.LogError("Failed to get game server URL from NetworkData");
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return null;
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}
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// 构建完整的版本检查URL
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string protocol = NetworkData.Get().api_https ? "https://" : "http://";
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string url = protocol + gameServerUrl + versionEndpoint;
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Debug.Log($"Version check URL: {url}");
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using (UnityWebRequest request = UnityWebRequest.Get(url))
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{
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var operation = request.SendWebRequest();
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while (!operation.isDone)
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{
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await Task.Yield();
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}
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if (request.result == UnityWebRequest.Result.Success)
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{
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try
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{
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var versionData = JsonUtility.FromJson<ResourceVersionResponse>(request.downloadHandler.text);
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return versionData;
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}
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catch (Exception e)
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{
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Debug.LogError($"Failed to parse version response: {e.Message}");
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return null;
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}
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}
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else
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{
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Debug.LogError($"Failed to get version: {request.error}");
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return null;
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}
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}
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}
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/// <summary>
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/// 下载并更新资源
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/// </summary>
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public async Task<bool> DownloadAndUpdateResources()
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{
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try
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{
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string zipFilePath = Path.Combine(persistentDataPath, $"{targetVersion}.zip");
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// 构建版本化的下载URL
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string downloadUrl = BuildVersionedDownloadUrl(targetVersion);
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// 验证URL是否存在（可选）
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if (validateVersionedUrl)
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{
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bool urlExists = await ValidateVersionedUrl(downloadUrl);
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if (!urlExists)
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{
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OnDownloadError?.Invoke($"Versioned resource not found for version {targetVersion}");
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return false;
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}
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}
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// 下载压缩包
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bool downloadSuccess = await DownloadFile(downloadUrl, zipFilePath);
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if (!downloadSuccess)
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{
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OnDownloadError?.Invoke("Failed to download resources");
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return false;
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}
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OnDownloadComplete?.Invoke(zipFilePath);
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// 解压文件
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bool extractSuccess = await ExtractZipFile(zipFilePath, spritesPath);
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if (!extractSuccess)
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{
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OnDownloadError?.Invoke("Failed to extract resources");
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return false;
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}
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OnExtractComplete?.Invoke();
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// 清理下载的压缩包
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if (File.Exists(zipFilePath))
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{
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File.Delete(zipFilePath);
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}
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// 更新版本信息
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SaveCurrentVersion(targetVersion, targetMd5);
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currentVersion = targetVersion;
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currentMd5 = targetMd5;
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Debug.Log($"Resources updated successfully to version {currentVersion}");
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return true;
|
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}
|
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catch (Exception e)
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{
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Debug.LogError($"Error downloading/updating resources: {e.Message}");
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OnDownloadError?.Invoke(e.Message);
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return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 下载文件
|
||||
/// </summary>
|
||||
private async Task<bool> DownloadFile(string url, string filePath)
|
||||
{
|
||||
using (UnityWebRequest request = UnityWebRequest.Get(url))
|
||||
{
|
||||
var operation = request.SendWebRequest();
|
||||
|
||||
while (!operation.isDone)
|
||||
{
|
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OnDownloadProgress?.Invoke(request.downloadProgress);
|
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await Task.Yield();
|
||||
}
|
||||
|
||||
if (request.result == UnityWebRequest.Result.Success)
|
||||
{
|
||||
File.WriteAllBytes(filePath, request.downloadHandler.data);
|
||||
return true;
|
||||
}
|
||||
else
|
||||
{
|
||||
Debug.LogError($"Download failed: {request.error}");
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||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 解压ZIP文件
|
||||
/// </summary>
|
||||
private async Task<bool> ExtractZipFile(string zipFilePath, string extractPath)
|
||||
{
|
||||
try
|
||||
{
|
||||
// 清空目标目录
|
||||
if (Directory.Exists(extractPath))
|
||||
{
|
||||
Directory.Delete(extractPath, true);
|
||||
}
|
||||
Directory.CreateDirectory(extractPath);
|
||||
|
||||
using (var archive = ZipFile.OpenRead(zipFilePath))
|
||||
{
|
||||
int totalEntries = archive.Entries.Count;
|
||||
int processedEntries = 0;
|
||||
|
||||
foreach (var entry in archive.Entries)
|
||||
{
|
||||
// 跳过目录条目
|
||||
if (string.IsNullOrEmpty(entry.Name))
|
||||
continue;
|
||||
|
||||
string entryPath = Path.Combine(extractPath, entry.FullName);
|
||||
string directoryName = Path.GetDirectoryName(entryPath);
|
||||
|
||||
if (!string.IsNullOrEmpty(directoryName) && !Directory.Exists(directoryName))
|
||||
{
|
||||
Directory.CreateDirectory(directoryName);
|
||||
}
|
||||
|
||||
using (var entryStream = entry.Open())
|
||||
using (var outputStream = File.Create(entryPath))
|
||||
{
|
||||
await entryStream.CopyToAsync(outputStream);
|
||||
}
|
||||
|
||||
processedEntries++;
|
||||
OnExtractProgress?.Invoke((float)processedEntries / totalEntries);
|
||||
|
||||
if (processedEntries % 10 == 0) // 每10个文件yield一次
|
||||
{
|
||||
await Task.Yield();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return true;
|
||||
}
|
||||
catch (Exception e)
|
||||
{
|
||||
Debug.LogError($"Extract failed: {e.Message}");
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 加载当前版本信息
|
||||
/// </summary>
|
||||
private void LoadCurrentVersion()
|
||||
{
|
||||
string versionFile = Path.Combine(persistentDataPath, "version.txt");
|
||||
if (File.Exists(versionFile))
|
||||
{
|
||||
string[] lines = File.ReadAllLines(versionFile);
|
||||
if (lines.Length > 0)
|
||||
{
|
||||
currentVersion = lines[0].Trim();
|
||||
}
|
||||
if (lines.Length > 1)
|
||||
{
|
||||
currentMd5 = lines[1].Trim();
|
||||
}
|
||||
Debug.Log($"Loaded current version: {currentVersion}, MD5: {currentMd5}");
|
||||
}
|
||||
else
|
||||
{
|
||||
currentVersion = "0.0.0";
|
||||
currentMd5 = "";
|
||||
Debug.Log($"No version file found, using defaults: {currentVersion}");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 保存当前版本信息
|
||||
/// </summary>
|
||||
private void SaveCurrentVersion(string version, string md5 = "")
|
||||
{
|
||||
string versionFile = Path.Combine(persistentDataPath, "version.txt");
|
||||
string content = version;
|
||||
if (!string.IsNullOrEmpty(md5))
|
||||
{
|
||||
content += "\n" + md5;
|
||||
}
|
||||
File.WriteAllText(versionFile, content);
|
||||
Debug.Log($"Saved version: {version}, MD5: {md5}");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取本地Sprite资源路径
|
||||
/// </summary>
|
||||
public string GetLocalSpritePath(string relativePath)
|
||||
{
|
||||
return Path.Combine(spritesPath, relativePath);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 检查本地资源是否存在
|
||||
/// </summary>
|
||||
public bool HasLocalResources()
|
||||
{
|
||||
return Directory.Exists(spritesPath) &&
|
||||
Directory.GetFiles(spritesPath, "*", SearchOption.AllDirectories).Length > 0;
|
||||
}
|
||||
|
||||
public string GetCurrentVersion()
|
||||
{
|
||||
return currentVersion;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取指定版本的下载URL（用于调试）
|
||||
/// </summary>
|
||||
public string GetDownloadUrlForVersion(string version)
|
||||
{
|
||||
return BuildVersionedDownloadUrl(version);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取当前目标版本的下载URL
|
||||
/// </summary>
|
||||
public string GetCurrentDownloadUrl()
|
||||
{
|
||||
return BuildVersionedDownloadUrl(targetVersion);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 获取本地Sprites目录的完整路径（用于调试）
|
||||
/// </summary>
|
||||
public string GetSpritesDirectoryPath()
|
||||
{
|
||||
return spritesPath;
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 手动计算并打印当前Sprites目录的MD5
|
||||
/// </summary>
|
||||
public async void CalculateAndLogCurrentMd5()
|
||||
{
|
||||
Debug.Log("=== 手动计算当前Sprites目录MD5 ===");
|
||||
if (!Directory.Exists(spritesPath))
|
||||
{
|
||||
Debug.LogWarning("Sprites目录不存在！");
|
||||
return;
|
||||
}
|
||||
|
||||
string calculatedMd5 = await CalculateDirectoryMd5(spritesPath);
|
||||
Debug.Log($"手动计算结果: {calculatedMd5}");
|
||||
Debug.Log($"当前保存的MD5: {currentMd5}");
|
||||
Debug.Log($"调试MD5: {debugMd5}");
|
||||
Debug.Log("================================");
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 打印本地资源路径信息
|
||||
/// </summary>
|
||||
public void LogResourcePaths()
|
||||
{
|
||||
Debug.Log($"=== Resource Paths ===");
|
||||
Debug.Log($"persistentDataPath: {persistentDataPath}");
|
||||
Debug.Log($"Sprites Directory: {spritesPath}");
|
||||
Debug.Log($"Directory Exists: {Directory.Exists(spritesPath)}");
|
||||
|
||||
if (Directory.Exists(spritesPath))
|
||||
{
|
||||
var files = Directory.GetFiles(spritesPath, "*", SearchOption.AllDirectories);
|
||||
Debug.Log($"Total files in Sprites: {files.Length}");
|
||||
|
||||
// 显示前10个文件作为示例
|
||||
for (int i = 0; i < Math.Min(10, files.Length); i++)
|
||||
{
|
||||
string relativePath = files[i].Substring(spritesPath.Length + 1);
|
||||
Debug.Log($" {relativePath}");
|
||||
}
|
||||
|
||||
if (files.Length > 10)
|
||||
{
|
||||
Debug.Log($" ... and {files.Length - 10} more files");
|
||||
}
|
||||
}
|
||||
Debug.Log($"======================");
|
||||
}
|
||||
|
||||
public static ResourceDownloader Get()
|
||||
{
|
||||
if (instance == null)
|
||||
{
|
||||
// 如果没有实例，创建一个新的
|
||||
GameObject go = new GameObject("ResourceDownloader");
|
||||
instance = go.AddComponent<ResourceDownloader>();
|
||||
DontDestroyOnLoad(go);
|
||||
Debug.Log("Created new ResourceDownloader instance");
|
||||
}
|
||||
return instance;
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// 资源版本响应数据结构
|
||||
/// </summary>
|
||||
[Serializable]
|
||||
public class ResourceVersionResponse
|
||||
{
|
||||
public string version;
|
||||
public string md5;
|
||||
public string description;
|
||||
public long timestamp;
|
||||
}
|
||||
}
|
||||
11
Assets/TcgEngine/Scripts/Network/ResourceDownloader.cs.meta
Normal file
11
Assets/TcgEngine/Scripts/Network/ResourceDownloader.cs.meta
Normal file
@@ -0,0 +1,11 @@
|
||||
fileFormatVersion: 2
|
||||
guid: da41884ccee8c42b594e97ccc928ddf2
|
||||
MonoImporter:
|
||||
externalObjects: {}
|
||||
serializedVersion: 2
|
||||
defaultReferences: []
|
||||
executionOrder: 0
|
||||
icon: {instanceID: 0}
|
||||
userData:
|
||||
assetBundleName:
|
||||
assetBundleVariant:
|
||||
Reference in New Issue
Block a user