Initial Commit

Assets/Scripts/Util/AsyncOperationWrapper.cs

@@ -0,0 +1,56 @@
+using System;
+using UnityEngine.ResourceManagement.AsyncOperations;
+
+namespace DefaultNamespace
+{
+	public struct AsyncOperationWrapper<T> where T : class
+	{
+		private readonly T obj;
+		private readonly AsyncOperationHandle<T>? handle;
+
+		public AsyncOperationWrapper(T obj)
+		{
+			this.obj = obj;
+			handle = new AsyncOperationHandle<T>();
+		}
+
+		public AsyncOperationWrapper(AsyncOperationHandle<T> handle)
+		{
+			this.handle = handle;
+			obj = default;
+		}
+
+		public bool IsEmpty => !HasObject && !handle.HasValue;
+
+		private bool HasObject => obj != null;
+
+		public AsyncOperationStatus Status => obj != null ? AsyncOperationStatus.Succeeded : handle?.Status ?? AsyncOperationStatus.None;
+
+		public bool IsValid => HasObject || (handle?.IsValid() ?? false);
+
+		public bool IsDone => HasObject || (handle?.IsDone ?? false);
+
+		public float PercentComplete => HasObject ? 1 : handle?.PercentComplete ?? 0;
+
+		public Exception OperationException => HasObject ? null : handle?.OperationException ?? null;
+
+		public T Result => obj ?? handle?.Result;
+
+		public event Action<AsyncOperationWrapper<T>> Completed
+		{
+			add
+			{
+				if (HasObject)
+				{
+					value.Invoke(this);
+				}
+				else if (handle.HasValue)
+				{
+					var thisCopy = this;
+					handle.Value.Completed += operationHandle => value.Invoke(thisCopy);
+				}
+			}
+			remove { }
+		}
+	}
+}