初始化 monorepo: Go后端(7微服务) + Unity客户端(9模块) + 启动器 HTML5原型: Three.js 3D体素世界, Perlin噪声地形, 原版材质, 22种方块 Minecraft创造模式背包: 双栏布局, 拖拽移动物品, 方向性元件引脚 AI助搭策划文档 + 客户端/服务端骨架 + Docker Compose + CI
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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using System.Text.Json.Nodes;
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using PCL;
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using PCL.Core.App.Localization;
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using PCL.Core.Utils;
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using PCL.Network;
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namespace PCL
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{
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public static class ModAssets
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{
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// 获取索引
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/// <summary>
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/// 获取某实例资源文件索引的对应 Json 项，详见实例 Json 中的 assetIndex 项。失败会抛出异常。
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/// </summary>
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public static JsonNode McAssetsGetIndex(McInstance mcInstance, bool returnLegacyOnError = false,
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bool checkURLEmpty = false)
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{
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string assetsName;
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try
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{
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while (true)
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{
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var index = mcInstance.JsonObject["assetIndex"];
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if (index is not null && index["id"] is not null)
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return index;
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if (mcInstance.JsonObject["assets"] is not null)
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assetsName = mcInstance.JsonObject["assets"].ToString();
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if (checkURLEmpty && index["url"] is not null)
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return index;
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// 下一个实例
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if (string.IsNullOrEmpty(mcInstance.InheritInstanceName))
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break;
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mcInstance = new McInstance(Path.Combine(ModFolder.mcFolderSelected, "versions", mcInstance.InheritInstanceName));
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}
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}
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catch
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{
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}
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// 无法获取到下载地址
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if (returnLegacyOnError)
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{
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// 返回 assets 文件名会由于没有下载地址导致全局失败
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// If AssetsName IsNot Nothing AndAlso AssetsName <> "legacy" Then
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// Log("[Minecraft] 无法获取资源文件索引下载地址，使用 assets 项提供的资源文件名：" & AssetsName)
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// Return GetJson("{""id"": """ & AssetsName & """}")
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// Else
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ModBase.Log("[Minecraft] 无法获取资源文件索引下载地址，使用默认的 legacy 下载地址");
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return (JsonNode)ModBase.GetJson(@"{
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""id"": ""legacy"",
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""sha1"": ""c0fd82e8ce9fbc93119e40d96d5a4e62cfa3f729"",
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""size"": 134284,
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""url"": ""https://launchermeta.mojang.com/mc-staging/assets/legacy/c0fd82e8ce9fbc93119e40d96d5a4e62cfa3f729/legacy.json"",
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""totalSize"": 111220701
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}");
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}
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// End If
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throw new Exception(Lang.Text("Minecraft.Error.NoAssetIndexInfo"));
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}
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/// <summary>
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/// 获取某实例资源文件索引名，优先使用 assetIndex，其次使用 assets。失败会返回 legacy。
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/// </summary>
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public static string McAssetsGetIndexName(McInstance mcInstance)
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{
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try
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{
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while (true)
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{
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if (mcInstance.JsonObject["assetIndex"] is not null &&
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mcInstance.JsonObject["assetIndex"]["id"] is not null)
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return mcInstance.JsonObject["assetIndex"]["id"].ToString();
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if (mcInstance.JsonObject["assets"] is not null) return mcInstance.JsonObject["assets"].ToString();
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if (string.IsNullOrEmpty(mcInstance.InheritInstanceName))
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break;
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mcInstance = new McInstance(Path.Combine(ModFolder.mcFolderSelected, "versions", mcInstance.InheritInstanceName));
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}
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}
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catch (Exception ex)
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{
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ModBase.Log(ex, "获取资源文件索引名失败");
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}
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return "legacy";
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}
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// 获取列表
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public struct McAssetsToken
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{
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/// <summary>
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/// 文件的完整本地路径。
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/// </summary>
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public string localPath;
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/// <summary>
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/// Json 中书写的源路径。例如 minecraft/sounds/mob/stray/death2.ogg 。
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/// </summary>
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public string sourcePath;
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/// <summary>
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/// 文件大小。若无有效数据即为 0。
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/// </summary>
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public long size;
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/// <summary>
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/// 文件的 Hash 校验码。
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/// </summary>
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public string hash;
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public override string ToString()
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{
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return ModBase.GetString(size) + " | " + localPath;
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}
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}
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internal static string McAssetsHashPrefix(string hash)
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{
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return hash[..2];
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}
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internal static string McAssetsUrl(string hash)
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{
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return $"https://resources.download.minecraft.net/{McAssetsHashPrefix(hash)}/{hash}";
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}
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/// <summary>
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/// 获取 Minecraft 的资源文件列表。失败会抛出异常。
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/// </summary>
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internal static List<McAssetsToken> McAssetsListGet(McInstance mcInstance)
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{
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var indexName = McAssetsGetIndexName(mcInstance);
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try
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{
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// 初始化
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if (!File.Exists($@"{ModFolder.mcFolderSelected}assets\indexes\{indexName}.json"))
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throw new FileNotFoundException(Lang.Text("Minecraft.Error.AssetIndexNotFound"),
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Path.Combine(ModFolder.mcFolderSelected, "assets", "indexes", indexName + ".json"));
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var result = new List<McAssetsToken>();
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var json = (JsonObject)ModBase.GetJson(
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ModBase.ReadFile($@"{ModFolder.mcFolderSelected}assets\indexes\{indexName}.json"));
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// 读取列表
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foreach (var file in json["objects"].AsObject())
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{
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string localPath;
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var hash = file.Value["hash"].ToString();
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if (json["map_to_resources"] is not null && json["map_to_resources"].ToObject<bool>())
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// Remap
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localPath = Path.Combine(mcInstance.PathIndie, "resources", file.Key.Replace("/", @"\"));
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else if (json["virtual"] is not null && json["virtual"].ToObject<bool>())
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// Virtual
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localPath = Path.Combine(ModFolder.mcFolderSelected, "assets", "virtual", "legacy", file.Key.Replace("/", @"\"));
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else
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{
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// 正常
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localPath = Path.Combine(ModFolder.mcFolderSelected, "assets", "objects", McAssetsHashPrefix(hash), hash);
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}
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result.Add(new McAssetsToken
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{
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localPath = localPath,
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sourcePath = file.Key,
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hash = hash,
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size = long.Parse(file.Value["size"].ToString())
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});
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}
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return result;
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}
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catch (Exception ex)
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{
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ModBase.Log(ex, "获取资源文件列表失败：" + indexName);
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throw;
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}
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}
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// 获取缺失列表
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/// <summary>
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/// 获取实例缺失的资源文件所对应的 NetTaskFile。
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/// </summary>
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public static List<DownloadFile> McAssetsFixList(McInstance mcInstance, bool checkHash,
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[Optional] ref ModLoader.LoaderBase progressFeed)
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{
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// 如果需要检查 Hash，则留到下载时处理，以借助多线程加快检查速度
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if (checkHash)
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return McAssetsListGet(mcInstance).Select(token =>
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{
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var hash = token.hash;
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return new DownloadFile(
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ModDownload.DlSourceAssetsGet(McAssetsUrl(hash)),
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token.localPath,
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new ModBase.FileChecker(actualSize: token.size == 0L ? -1 : token.size, hash: hash));
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}).ToList();
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// 如果不检查 Hash，则立即处理
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var result = new List<DownloadFile>();
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List<McAssetsToken> assetsList;
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try
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{
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assetsList = McAssetsListGet(mcInstance);
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McAssetsToken token;
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if (progressFeed is not null)
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progressFeed.Progress = 0.04d;
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for (int i = 0, loopTo = assetsList.Count - 1; i <= loopTo; i++)
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{
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// 初始化
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token = assetsList[i];
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if (progressFeed is not null)
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progressFeed.Progress = 0.05d + 0.94d * i / assetsList.Count;
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// 检查文件是否存在
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var file = new FileInfo(token.localPath);
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if (file.Exists && (token.size == 0L || token.size == file.Length))
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continue;
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// 文件不存在，添加下载
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var hash = token.hash;
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result.Add(new DownloadFile(
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ModDownload.DlSourceAssetsGet(McAssetsUrl(hash)),
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token.localPath,
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new ModBase.FileChecker(actualSize: token.size == 0L ? -1 : token.size, hash: hash)));
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}
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}
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catch (Exception ex)
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{
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ModBase.Log(ex, "获取实例缺失的资源文件下载列表失败");
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}
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if (progressFeed is not null)
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progressFeed.Progress = 0.99d;
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return result;
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}
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}
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}
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