fix #391

Assets/YooAsset/Samples~/Extension Sample/Runtime/LoadGameObjectOperation.cs

@@ -0,0 +1,102 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using YooAsset;
+
+public static class YooAssetsExtension
+{
+    public static LoadGameObjectOperation LoadGameObjectAsync(this ResourcePackage resourcePackage, string location, Vector3 position, Quaternion rotation, Transform parent, bool destroyGoOnRelease = false)
+    {
+        var operation = new LoadGameObjectOperation(location, position, rotation, parent, destroyGoOnRelease);
+        YooAssets.StartOperation(operation);
+        return operation;
+    }
+}
+
+public class LoadGameObjectOperation : GameAsyncOperation
+{
+    private enum ESteps
+    {
+        None,
+        LoadAsset,
+        Done,
+    }
+
+    private readonly string _location;
+    private readonly Vector3 _positon;
+    private readonly Quaternion _rotation;
+    private readonly Transform _parent;
+    private readonly bool _destroyGoOnRelease;
+    private AssetHandle _handle;
+    private ESteps _steps = ESteps.None;
+
+    /// <summary>
+    /// 加载的游戏对象
+    /// </summary>
+    public GameObject Go { private set; get; }
+
+
+    public LoadGameObjectOperation(string location, Vector3 position, Quaternion rotation, Transform parent, bool destroyGoOnRelease = false)
+    {
+        _location = location;
+        _positon = position;
+        _rotation = rotation;
+        _parent = parent;
+        _destroyGoOnRelease = destroyGoOnRelease;
+    }
+    protected override void OnStart()
+    {
+        _steps = ESteps.LoadAsset;
+    }
+    protected override void OnUpdate()
+    {
+        if (_steps == ESteps.None || _steps == ESteps.Done)
+            return;
+
+        if (_steps == ESteps.LoadAsset)
+        {
+            if (_handle == null)
+            {
+                _handle = YooAssets.LoadAssetAsync<GameObject>(_location);
+            }
+
+            Progress = _handle.Progress;
+            if (_handle.IsDone == false)
+                return;
+
+            if (_handle.Status != EOperationStatus.Succeed)
+            {
+                Error = _handle.LastError;
+                Status = EOperationStatus.Failed;
+                _steps = ESteps.Done;
+            }
+            else
+            {
+                Go = _handle.InstantiateSync(_positon, _rotation, _parent);
+                Status = EOperationStatus.Succeed;
+                _steps = ESteps.Done;
+            }
+        }
+    }
+    protected override void OnAbort()
+    {
+    }
+
+    /// <summary>
+    /// 释放资源句柄
+    /// </summary>
+    public void ReleaseHandle()
+    {
+        if (_handle != null)
+        {
+            _handle.Release();
+
+            if (_destroyGoOnRelease)
+            {
+                if (Go != null)
+                    GameObject.Destroy(Go);
+            }
+        }
+    }
+}

Assets/YooAsset/Samples~/Extension Sample/Runtime/LoadGameObjectOperation.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 55478908ad5dc5541af1529a3faccee7
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: