UniRx 에셋 추가

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

@@ -0,0 +1,87 @@
+using System;
+
+namespace UniRx.Operators
+{
+    internal class ThrottleFirstObservable<T> : OperatorObservableBase<T>
+    {
+        readonly IObservable<T> source;
+        readonly TimeSpan dueTime;
+        readonly IScheduler scheduler;
+
+        public ThrottleFirstObservable(IObservable<T> source, TimeSpan dueTime, IScheduler scheduler) 
+            : base(scheduler == Scheduler.CurrentThread || source.IsRequiredSubscribeOnCurrentThread())
+        {
+            this.source = source;
+            this.dueTime = dueTime;
+            this.scheduler = scheduler;
+        }
+
+        protected override IDisposable SubscribeCore(IObserver<T> observer, IDisposable cancel)
+        {
+            return new ThrottleFirst(this, observer, cancel).Run();
+        }
+
+        class ThrottleFirst : OperatorObserverBase<T, T>
+        {
+            readonly ThrottleFirstObservable<T> parent;
+            readonly object gate = new object();
+            bool open = true;
+            SerialDisposable cancelable;
+
+            public ThrottleFirst(ThrottleFirstObservable<T> parent, IObserver<T> observer, IDisposable cancel) : base(observer, cancel)
+            {
+                this.parent = parent;
+            }
+
+            public IDisposable Run()
+            {
+                cancelable = new SerialDisposable();
+                var subscription = parent.source.Subscribe(this);
+
+                return StableCompositeDisposable.Create(cancelable, subscription);
+            }
+
+            void OnNext()
+            {
+                lock (gate)
+                {
+                    open = true;
+                }
+            }
+
+            public override void OnNext(T value)
+            {
+                lock (gate)
+                {
+                    if (!open) return;
+                    observer.OnNext(value);
+                    open = false;
+                }
+
+                var d = new SingleAssignmentDisposable();
+                cancelable.Disposable = d;
+                d.Disposable = parent.scheduler.Schedule(parent.dueTime, OnNext);
+            }
+
+            public override void OnError(Exception error)
+            {
+                cancelable.Dispose();
+
+                lock (gate)
+                {
+                    try { observer.OnError(error); } finally { Dispose(); }
+                }
+            }
+
+            public override void OnCompleted()
+            {
+                cancelable.Dispose();
+
+                lock (gate)
+                {
+                    try { observer.OnCompleted(); } finally { Dispose(); }
+                }
+            }
+        }
+    }
+}