69 lines
2.9 KiB
C#
69 lines
2.9 KiB
C#
using System;
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using System.IO;
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using System.Reflection;
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using UnityEngine;
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using XWorld.Framework;
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namespace XGame.MiniGame
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{
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// 从代码 AB（manifest.CodeAb）取出 Core/Client 热更 DLL 字节并加载，反射出 IGameClient 入口工厂
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public sealed class MiniGameAssemblyLoader
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{
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public Func<IGameClient> CreateClient { get; private set; }
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public string Error { get; private set; }
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// localDir: MiniGameDownloader.LocalDir；manifest: 解析好的 game.json
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public bool Load(string localDir, MiniGameManifest manifest)
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{
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string abPath = localDir + manifest.CodeAb;
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if (!File.Exists(abPath))
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{ Error = $"缺少代码 AB: {abPath}（需要 codeAb 统一 AB 格式，旧 .bytes 包不再支持）"; return false; }
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AssetBundle ab = null;
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try
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{
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ab = MiniGamePlatform.LoadAssetBundle(abPath);
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if (ab == null) { Error = "代码 AB 打开失败: " + abPath; return false; }
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byte[] coreBytes = LoadDllBytes(ab, manifest.CoreDll);
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byte[] clientBytes = LoadDllBytes(ab, manifest.ClientDll);
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if (coreBytes == null || clientBytes == null)
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{
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Error = $"代码 AB 内缺少 {manifest.CoreDll}/{manifest.ClientDll} 的 .bytes（AB 内资产: {string.Join(", ", ab.GetAllAssetNames())}）";
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return false;
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}
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// Core 先于 Client 加载（Client 依赖 Core）
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Assembly.Load(coreBytes);
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Assembly clientAsm = Assembly.Load(clientBytes);
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Type entry = clientAsm.GetType(manifest.ClientEntryType);
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if (entry == null) { Error = "找不到入口类型 " + manifest.ClientEntryType; return false; }
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if (!typeof(IGameClient).IsAssignableFrom(entry))
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{ Error = manifest.ClientEntryType + " 未实现 IGameClient"; return false; }
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CreateClient = () => (IGameClient)Activator.CreateInstance(entry);
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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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Error = "加载小游戏程序集失败: " + e;
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Debug.LogError("[MiniGameAssemblyLoader] " + Error);
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return false;
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}
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finally
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{
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// DLL 字节已复制进托管内存，AB 本体可卸；false=不销毁已取出的对象
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if (ab != null) ab.Unload(false);
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}
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}
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// "X.dll.bytes" 导入后资产名为 "X.dll"（Unity 剥最后一个扩展名）；两种写法都试
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private static byte[] LoadDllBytes(AssetBundle ab, string dllName)
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{
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TextAsset ta = ab.LoadAsset<TextAsset>(dllName) ?? ab.LoadAsset<TextAsset>(dllName + ".bytes");
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return ta != null ? ta.bytes : null;
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}
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}
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}
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