the actual thing

.gitignore

@@ -0,0 +1,5 @@
+.idea
+bin
+obj
+packages
+*.user

Coroutine.sln

@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Coroutine", "Coroutine\Coroutine.csproj", "{1657964D-2503-426A-8514-D020660BEE4D}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Test", "Test\Test.csproj", "{8BE6B559-927D-47A6-8253-D7D809D337AF}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{1657964D-2503-426A-8514-D020660BEE4D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{1657964D-2503-426A-8514-D020660BEE4D}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{1657964D-2503-426A-8514-D020660BEE4D}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{1657964D-2503-426A-8514-D020660BEE4D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{8BE6B559-927D-47A6-8253-D7D809D337AF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{8BE6B559-927D-47A6-8253-D7D809D337AF}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{8BE6B559-927D-47A6-8253-D7D809D337AF}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{8BE6B559-927D-47A6-8253-D7D809D337AF}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

Coroutine/Coroutine.cs

@@ -0,0 +1,36 @@
+using System.Collections.Generic;
+
+namespace Coroutine {
+    internal class Coroutine {
+
+        private readonly IEnumerator<Wait> enumerator;
+
+        public Coroutine(IEnumerator<Wait> enumerator) {
+            this.enumerator = enumerator;
+            this.enumerator.MoveNext();
+        }
+
+        public bool Tick(double deltaSeconds) {
+            var curr = this.enumerator.Current;
+            if (curr != null && curr.Tick(deltaSeconds)) {
+                if (!this.enumerator.MoveNext())
+                    return true;
+            }
+            return false;
+        }
+
+        public bool OnEvent(Event evt) {
+            var curr = this.enumerator.Current;
+            if (curr != null && curr.OnEvent(evt)) {
+                if (!this.enumerator.MoveNext())
+                    return true;
+            }
+            return false;
+        }
+
+        public WaitType GetCurrentType() {
+            return this.enumerator.Current.GetWaitType();
+        }
+
+    }
+}

Coroutine/Coroutine.csproj

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+    <PropertyGroup>
+        <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+        <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+        <ProjectGuid>{1657964D-2503-426A-8514-D020660BEE4D}</ProjectGuid>
+        <OutputType>Library</OutputType>
+        <AppDesignerFolder>Properties</AppDesignerFolder>
+        <RootNamespace>Coroutine</RootNamespace>
+        <AssemblyName>Coroutine</AssemblyName>
+        <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+        <FileAlignment>512</FileAlignment>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugSymbols>true</DebugSymbols>
+        <DebugType>full</DebugType>
+        <Optimize>false</Optimize>
+        <OutputPath>bin\Debug\</OutputPath>
+        <DefineConstants>DEBUG;TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugType>pdbonly</DebugType>
+        <Optimize>true</Optimize>
+        <OutputPath>bin\Release\</OutputPath>
+        <DefineConstants>TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <ItemGroup>
+        <Reference Include="System" />
+        <Reference Include="System.Core" />
+        <Reference Include="System.Data" />
+        <Reference Include="System.Xml" />
+    </ItemGroup>
+    <ItemGroup>
+        <Compile Include="Coroutine.cs" />
+        <Compile Include="CoroutineHandler.cs" />
+        <Compile Include="Event.cs" />
+        <Compile Include="Wait.cs" />
+        <Compile Include="Properties\AssemblyInfo.cs" />
+        <Compile Include="WaitEvent.cs" />
+        <Compile Include="WaitSeconds.cs" />
+    </ItemGroup>
+    <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+    <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+         Other similar extension points exist, see Microsoft.Common.targets.
+    <Target Name="BeforeBuild">
+    </Target>
+    <Target Name="AfterBuild">
+    </Target>
+    -->
+
+</Project>

Coroutine/CoroutineHandler.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+
+namespace Coroutine {
+    public static class CoroutineHandler {
+
+        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) {
+            var inst = new Coroutine(coroutine);
+            var type = inst.GetCurrentType();
+            if (type == WaitType.Tick)
+                TickingCoroutines.Add(inst);
+            else if (type == WaitType.Event)
+                EventCoroutines.Add(inst);
+        }
+
+        public static void Tick(double deltaSeconds) {
+            for (var i = TickingCoroutines.Count - 1; i >= 0; i--) {
+                var coroutine = TickingCoroutines[i];
+                if (coroutine.Tick(deltaSeconds)) {
+                    TickingCoroutines.RemoveAt(i);
+                } else if (coroutine.GetCurrentType() != WaitType.Tick) {
+                    TickingCoroutines.RemoveAt(i);
+                    EventCoroutines.Add(coroutine);
+                }
+            }
+        }
+
+        public static void RaiseEvent(Event evt) {
+            for (var i = EventCoroutines.Count - 1; i >= 0; i--) {
+                var coroutine = EventCoroutines[i];
+                if (coroutine.OnEvent(evt)) {
+                    EventCoroutines.RemoveAt(i);
+                } else if (coroutine.GetCurrentType() != WaitType.Event) {
+                    EventCoroutines.RemoveAt(i);
+                    TickingCoroutines.Add(coroutine);
+                }
+            }
+        }
+
+    }
+}

Coroutine/Event.cs

@@ -0,0 +1,7 @@
+namespace Coroutine {
+    public class Event {
+
+        
+        
+    }
+}

Coroutine/Properties/AssemblyInfo.cs

@@ -0,0 +1,35 @@
+using System.Reflection;
+using System.Runtime.InteropServices;
+
+// General Information about an assembly is controlled through the following 
+// set of attributes. Change these attribute values to modify the information
+// associated with an assembly.
+[assembly: AssemblyTitle("Coroutine")]
+[assembly: AssemblyDescription("A simple implementation of Unity's Coroutines to be used for any C# project")]
+[assembly: AssemblyConfiguration("")]
+[assembly: AssemblyCompany("Ellpeck")]
+[assembly: AssemblyProduct("Coroutine")]
+[assembly: AssemblyCopyright("Copyright ©  2019")]
+[assembly: AssemblyTrademark("")]
+[assembly: AssemblyCulture("")]
+
+// Setting ComVisible to false makes the types in this assembly not visible 
+// to COM components.  If you need to access a type in this assembly from 
+// COM, set the ComVisible attribute to true on that type.
+[assembly: ComVisible(false)]
+
+// The following GUID is for the ID of the typelib if this project is exposed to COM
+[assembly: Guid("1657964D-2503-426A-8514-D020660BEE4D")]
+
+// Version information for an assembly consists of the following four values:
+//
+//      Major Version
+//      Minor Version 
+//      Build Number
+//      Revision
+//
+// You can specify all the values or you can default the Build and Revision Numbers 
+// by using the '*' as shown below:
+// [assembly: AssemblyVersion("1.0.*")]
+[assembly: AssemblyVersion("1.0.0.0")]
+[assembly: AssemblyFileVersion("1.0.0.0")]

Coroutine/Wait.cs

@@ -0,0 +1,24 @@
+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

@@ -0,0 +1,19 @@
+namespace Coroutine {
+    public class WaitEvent : Wait {
+
+        private readonly Event evt;
+
+        public WaitEvent(Event evt) {
+            this.evt = evt;
+        }
+
+        public override WaitType GetWaitType() {
+            return WaitType.Event;
+        }
+
+        public override bool OnEvent(Event evt) {
+            return evt == this.evt;
+        }
+
+    }
+}

Coroutine/WaitSeconds.cs

@@ -0,0 +1,20 @@
+namespace Coroutine {
+    public class WaitSeconds : Wait {
+
+        private double seconds;
+
+        public WaitSeconds(double seconds) {
+            this.seconds = seconds;
+        }
+
+        public override WaitType GetWaitType() {
+            return WaitType.Tick;
+        }
+
+        public override bool Tick(double deltaSeconds) {
+            this.seconds -= deltaSeconds;
+            return this.seconds <= 0;
+        }
+
+    }
+}

README.md

@@ -1,2 +1,2 @@
-# Coroutines
+# Coroutine
 A simple implementation of Unity's Coroutines to be used for any C# project

Test/Example.cs

@@ -0,0 +1,57 @@
+using System;
+using System.Collections.Generic;
+using System.Threading;
+using Coroutine;
+
+namespace Test {
+    internal static class Example {
+
+        private static readonly Event TestEvent = new Event();
+
+        public static void Main() {
+            CoroutineHandler.Start(WaitSeconds());
+            CoroutineHandler.Start(RaiseTestEvent());
+            CoroutineHandler.Start(WaitForTestEvent());
+            CoroutineHandler.Start(PrintEvery5Seconds());
+
+            var lastTime = DateTime.Now;
+            while (true) {
+                var currTime = DateTime.Now;
+                CoroutineHandler.Tick((currTime - lastTime).TotalSeconds);
+                lastTime = currTime;
+                Thread.Sleep(1);
+            }
+        }
+
+        private static IEnumerator<Wait> 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);
+            Console.WriteLine("After 10 seconds " + DateTime.Now);
+        }
+
+        private static IEnumerator<Wait> RaiseTestEvent() {
+            yield return new WaitSeconds(10);
+            Console.WriteLine("Raising test event");
+            CoroutineHandler.RaiseEvent(TestEvent);
+        }
+
+        private static IEnumerator<Wait> WaitForTestEvent() {
+            yield return new WaitSeconds(5);
+            Console.WriteLine("Waited 5 seconds before waiting for the event");
+            yield return new WaitEvent(TestEvent);
+            Console.WriteLine("Test event received");
+        }
+
+        private static IEnumerator<Wait> PrintEvery5Seconds() {
+            while (true) {
+                yield return new WaitSeconds(10);
+                Console.WriteLine("The time is " + DateTime.Now);
+            }
+        }
+
+    }
+}

Test/Test.csproj

@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+    <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+    <PropertyGroup>
+        <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+        <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
+        <ProjectGuid>{8BE6B559-927D-47A6-8253-D7D809D337AF}</ProjectGuid>
+        <OutputType>Exe</OutputType>
+        <AppDesignerFolder>Properties</AppDesignerFolder>
+        <RootNamespace>Test</RootNamespace>
+        <AssemblyName>Test</AssemblyName>
+        <TargetFrameworkVersion>v4.7.2</TargetFrameworkVersion>
+        <FileAlignment>512</FileAlignment>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugSymbols>true</DebugSymbols>
+        <DebugType>full</DebugType>
+        <Optimize>false</Optimize>
+        <OutputPath>bin\Debug\</OutputPath>
+        <DefineConstants>DEBUG;TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+        <PlatformTarget>AnyCPU</PlatformTarget>
+        <DebugType>pdbonly</DebugType>
+        <Optimize>true</Optimize>
+        <OutputPath>bin\Release\</OutputPath>
+        <DefineConstants>TRACE</DefineConstants>
+        <ErrorReport>prompt</ErrorReport>
+        <WarningLevel>4</WarningLevel>
+    </PropertyGroup>
+    <ItemGroup>
+        <Reference Include="System" />
+        <Reference Include="System.Core" />
+        <Reference Include="System.Data" />
+        <Reference Include="System.Xml" />
+    </ItemGroup>
+    <ItemGroup>
+        <Compile Include="Example.cs" />
+    </ItemGroup>
+    <ItemGroup>
+      <ProjectReference Include="..\Coroutine\Coroutine.csproj">
+        <Project>{1657964d-2503-426a-8514-d020660bee4d}</Project>
+        <Name>Coroutine</Name>
+      </ProjectReference>
+    </ItemGroup>
+    <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+    <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
+         Other similar extension points exist, see Microsoft.Common.targets.
+    <Target Name="BeforeBuild">
+    </Target>
+    <Target Name="AfterBuild">
+    </Target>
+    -->
+
+</Project>