UniRx 에셋 추가

Gameton-06/Assets/Plugins/UniRx/Scripts/Operators/Start.cs

@@ -0,0 +1,101 @@
+using System;
+
+namespace UniRx.Operators
+{
+    internal class StartObservable<T> : OperatorObservableBase<T>
+    {
+        readonly Action action;
+        readonly Func<T> function;
+        readonly IScheduler scheduler;
+        readonly TimeSpan? startAfter;
+
+        public StartObservable(Func<T> function, TimeSpan? startAfter, IScheduler scheduler)
+            : base(scheduler == Scheduler.CurrentThread)
+        {
+            this.function = function;
+            this.startAfter = startAfter;
+            this.scheduler = scheduler;
+        }
+
+        public StartObservable(Action action, TimeSpan? startAfter, IScheduler scheduler)
+            : base(scheduler == Scheduler.CurrentThread)
+        {
+            this.action = action;
+            this.startAfter = startAfter;
+            this.scheduler = scheduler;
+        }
+
+        protected override IDisposable SubscribeCore(IObserver<T> observer, IDisposable cancel)
+        {
+            if (startAfter != null)
+            {
+                return scheduler.Schedule(startAfter.Value, new StartObserver(this, observer, cancel).Run);
+            }
+            else
+            {
+                return scheduler.Schedule(new StartObserver(this, observer, cancel).Run);
+            }
+        }
+
+        class StartObserver : OperatorObserverBase<T, T>
+        {
+            readonly StartObservable<T> parent;
+
+            public StartObserver(StartObservable<T> parent, IObserver<T> observer, IDisposable cancel) : base(observer, cancel)
+            {
+                this.parent = parent;
+            }
+
+            public void Run()
+            {
+                var result = default(T);
+                try
+                {
+                    if (parent.function != null)
+                    {
+                        result = parent.function();
+                    }
+                    else
+                    {
+                        parent.action();
+                    }
+                }
+                catch (Exception exception)
+                {
+                    try { observer.OnError(exception); }
+                    finally { Dispose(); }
+                    return;
+                }
+
+                OnNext(result);
+                try { observer.OnCompleted(); }
+                finally { Dispose(); }
+            }
+
+            public override void OnNext(T value)
+            {
+                try
+                {
+                    base.observer.OnNext(value);
+                }
+                catch
+                {
+                    Dispose();
+                    throw;
+                }
+            }
+
+            public override void OnError(Exception error)
+            {
+                try { observer.OnError(error); }
+                finally { Dispose(); }
+            }
+
+            public override void OnCompleted()
+            {
+                try { observer.OnCompleted(); }
+                finally { Dispose(); }
+            }
+        }
+    }
+}