made waits structs and added invokelater

Coroutine/Coroutine.cs

@@ -1,11 +1,11 @@
 using System.Collections.Generic;
 
 namespace Coroutine {
-    internal class Coroutine {
+    internal struct Coroutine {
 
-        private readonly IEnumerator<Wait> enumerator;
+        private readonly IEnumerator<IWait> enumerator;
 
-        public Coroutine(IEnumerator<Wait> enumerator) {
+        public Coroutine(IEnumerator<IWait> enumerator) {
             this.enumerator = enumerator;
             this.enumerator.MoveNext();
         }

Coroutine/CoroutineHandler.cs

@@ -7,7 +7,7 @@ namespace Coroutine {
         private static readonly List<Coroutine> TickingCoroutines = new List<Coroutine>();
         private static readonly List<Coroutine> EventCoroutines = new List<Coroutine>();
 
-        public static void Start(IEnumerator<Wait> coroutine) {
+        public static void Start(IEnumerator<IWait> coroutine) {
             var inst = new Coroutine(coroutine);
             var type = inst.GetCurrentType();
             if (type == WaitType.Tick)
@@ -16,6 +16,10 @@ namespace Coroutine {
                 EventCoroutines.Add(inst);
         }
 
+        public static void InvokeLater(IWait wait, Action action) {
+            Start(InvokeLaterImpl(wait, action));
+        }
+
         public static void Tick(double deltaSeconds) {
             for (var i = TickingCoroutines.Count - 1; i >= 0; i--) {
                 var coroutine = TickingCoroutines[i];
@@ -40,5 +44,10 @@ namespace Coroutine {
             }
         }
 
+        private static IEnumerator<IWait> InvokeLaterImpl(IWait wait, Action action) {
+            yield return wait;
+            action();
+        }
+
     }
 }

Coroutine/IWait.cs

@@ -0,0 +1,18 @@
+namespace Coroutine {
+    public interface IWait {
+
+        WaitType GetWaitType();
+
+        bool Tick(double deltaSeconds);
+
+        bool OnEvent(Event evt);
+
+    }
+
+    public enum WaitType {
+
+        Tick,
+        Event
+
+    }
+}

Coroutine/Wait.cs

@@ -1,24 +0,0 @@
-using System;
-
-namespace Coroutine {
-    public abstract class Wait {
-
-        public abstract WaitType GetWaitType();
-
-        public virtual bool Tick(double deltaSeconds) {
-            throw new NotSupportedException();
-        }
-
-        public virtual bool OnEvent(Event evt) {
-            throw new NotSupportedException();
-        }
-
-    }
-
-    public enum WaitType {
-
-        Tick,
-        Event
-
-    }
-}

Coroutine/WaitEvent.cs

@@ -1,5 +1,7 @@
+using System;
+
 namespace Coroutine {
-    public class WaitEvent : Wait {
+    public struct WaitEvent : IWait {
 
         private readonly Event evt;
 
@@ -7,11 +9,15 @@ namespace Coroutine {
             this.evt = evt;
         }
 
-        public override WaitType GetWaitType() {
+        public WaitType GetWaitType() {
             return WaitType.Event;
         }
 
-        public override bool OnEvent(Event evt) {
+        public bool Tick(double deltaSeconds) {
+            throw new NotSupportedException();
+        }
+
+        public bool OnEvent(Event evt) {
             return evt == this.evt;
         }
 

Coroutine/WaitSeconds.cs

@@ -1,5 +1,7 @@
+using System;
+
 namespace Coroutine {
-    public class WaitSeconds : Wait {
+    public struct WaitSeconds : IWait {
 
         private double seconds;
 
@@ -7,14 +9,18 @@ namespace Coroutine {
             this.seconds = seconds;
         }
 
-        public override WaitType GetWaitType() {
+        public WaitType GetWaitType() {
             return WaitType.Tick;
         }
 
-        public override bool Tick(double deltaSeconds) {
+        public bool Tick(double deltaSeconds) {
             this.seconds -= deltaSeconds;
             return this.seconds <= 0;
         }
 
+        public bool OnEvent(Event evt) {
+            throw new NotSupportedException();
+        }
+
     }
 }

Test/Example.cs

@@ -10,10 +10,14 @@ namespace Test {
 
         public static void Main() {
             CoroutineHandler.Start(WaitSeconds());
-            CoroutineHandler.Start(RaiseTestEvent());
-            CoroutineHandler.Start(WaitForTestEvent());
             CoroutineHandler.Start(PrintEvery5Seconds());
 
+            CoroutineHandler.InvokeLater(new WaitSeconds(10), () => {
+                Console.WriteLine("Raising test event");
+                CoroutineHandler.RaiseEvent(TestEvent);
+            });
+            CoroutineHandler.InvokeLater(new WaitEvent(TestEvent), () => Console.WriteLine("Test event received"));
+
             var lastTime = DateTime.Now;
             while (true) {
                 var currTime = DateTime.Now;
@@ -23,28 +27,23 @@ namespace Test {
             }
         }
 
-        private static IEnumerator<Wait> WaitSeconds() {
+        private static IEnumerator<IWait> WaitSeconds() {
             Console.WriteLine("First thing " + DateTime.Now);
             yield return new WaitSeconds(1);
             Console.WriteLine("After 1 second " + DateTime.Now);
-            yield return new WaitSeconds(5);
-            Console.WriteLine("After 5 seconds " + DateTime.Now);
-            yield return new WaitSeconds(10);
+            yield return new WaitSeconds(9);
             Console.WriteLine("After 10 seconds " + DateTime.Now);
-        }
-
-        private static IEnumerator<Wait> RaiseTestEvent() {
+            yield return new WaitSeconds(5);
+            Console.WriteLine("After 5 more seconds " + DateTime.Now);
             yield return new WaitSeconds(10);
-            Console.WriteLine("Raising test event");
-            CoroutineHandler.RaiseEvent(TestEvent);
+            Console.WriteLine("After 10 more seconds " + DateTime.Now);
+
+            yield return new WaitSeconds(20);
+            Console.WriteLine("Done");
+            Environment.Exit(0);
         }
 
-        private static IEnumerator<Wait> WaitForTestEvent() {
-            yield return new WaitEvent(TestEvent);
-            Console.WriteLine("Test event received");
-        }
-
-        private static IEnumerator<Wait> PrintEvery5Seconds() {
+        private static IEnumerator<IWait> PrintEvery5Seconds() {
             while (true) {
                 yield return new WaitSeconds(10);
                 Console.WriteLine("The time is " + DateTime.Now);