UniRx 에셋 추가

Gameton-06/Assets/Plugins/UniRx/Scripts/Subjects/ConnectableObservable.cs

@@ -0,0 +1,71 @@
+using System;
+
+namespace UniRx
+{
+    public interface IConnectableObservable<T> : IObservable<T>
+    {
+        IDisposable Connect();
+    }
+
+    public static partial class Observable
+    {
+        class ConnectableObservable<T> : IConnectableObservable<T>
+        {
+            readonly IObservable<T> source;
+            readonly ISubject<T> subject;
+            readonly object gate = new object();
+            Connection connection;
+
+            public ConnectableObservable(IObservable<T> source, ISubject<T> subject)
+            {
+                this.source = source.AsObservable();
+                this.subject = subject;
+            }
+
+            public IDisposable Connect()
+            {
+                lock (gate)
+                {
+                    // don't subscribe twice
+                    if (connection == null)
+                    {
+                        var subscription = source.Subscribe(subject);
+                        connection = new Connection(this, subscription);
+                    }
+
+                    return connection;
+                }
+            }
+
+            public IDisposable Subscribe(IObserver<T> observer)
+            {
+                return subject.Subscribe(observer);
+            }
+
+            class Connection : IDisposable
+            {
+                readonly ConnectableObservable<T> parent;
+                IDisposable subscription;
+
+                public Connection(ConnectableObservable<T> parent, IDisposable subscription)
+                {
+                    this.parent = parent;
+                    this.subscription = subscription;
+                }
+
+                public void Dispose()
+                {
+                    lock (parent.gate)
+                    {
+                        if (subscription != null)
+                        {
+                            subscription.Dispose();
+                            subscription = null;
+                            parent.connection = null;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}