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Assets/Scripts/Runtime/YooAsset/PatchLogic/FsmNode/FsmCreateDownloader.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UniFramework.Machine;
+using YooAsset;
+
+public class FsmCreateDownloader : IStateNode
+{
+    private StateMachine _machine;
+    PatchOperationData data;
+    void IStateNode.OnCreate(StateMachine machine)
+    {
+        _machine = machine;
+    }
+    void IStateNode.OnEnter()
+    {
+        data = (PatchOperationData)_machine.GetBlackboardValue("PatchOperationData");
+        Debug.Log($"创建资源下载器{data.packageName}");
+        CreateDownloader();
+    }
+    void IStateNode.OnUpdate()
+    {
+    }
+    void IStateNode.OnExit()
+    {
+    }
+
+    void CreateDownloader()
+    {
+        var packageName = data.packageName;
+        var package = YooAssets.GetPackage(packageName);
+        var downloader = package.CreateResourceDownloader(10, 3);
+        downloader.DownloadErrorCallback = data.downloadError;
+        downloader.DownloadFinishCallback = data.downloadFinish;
+        downloader.DownloadUpdateCallback = data.downloadUpdate;
+        var curVersion = PlayerPrefs.GetString($"{packageName}_Version", string.Empty);
+        var packageVersion = (string)_machine.GetBlackboardValue($"{packageName}_Version");
+        _machine.SetBlackboardValue($"{packageName}_Downloader", downloader);
+
+        if (downloader.TotalDownloadCount == 0)
+        {
+            Debug.Log("Not found any download files !");
+            _machine.ChangeState<FsmStartGame>();
+        }
+        else
+        {
+            if (data.autoDownload)
+            {
+                _machine.ChangeState<FsmDownloadPackageFiles>();
+            }
+            else 
+            {
+                MessageBox.Show()
+                 .SetTitle(packageName)
+                 .SetContent($"发现资源更新\n{curVersion}=>{packageVersion}: {downloader.TotalDownloadBytes / 1024f / 1024f:F1}MB")
+                 .AddButton("下载", (box) => { _machine.ChangeState<FsmDownloadPackageFiles>(); })
+                 .AddButton("取消", (box) => 
+                 { 
+                     downloader.CancelDownload();
+                     data.useLocal = true;
+                     _machine.SetBlackboardValue("PatchOperationData", data);
+                     _machine.ChangeState<FsmRequestPackageVersion>(); 
+                 })
+                 .AddButton("退出", (box) => { Application.Quit(); });
+            }
+        }
+    }
+}