From d4b861dd58e053d429f97cc5a18a25269bbc9ce9 Mon Sep 17 00:00:00 2001
From: gered <gered@blarg.ca>
Date: Thu, 22 Aug 2013 10:39:28 -0400
Subject: [PATCH] add ObjectPools helper to manage multiple pools for different
 types automatically

---
 .../Blarg.GameFramework.csproj                |  1 +
 Blarg.GameFramework/Support/ObjectPools.cs    | 54 +++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 Blarg.GameFramework/Support/ObjectPools.cs

diff --git a/Blarg.GameFramework/Blarg.GameFramework.csproj b/Blarg.GameFramework/Blarg.GameFramework.csproj
index a8d4abe..de74197 100644
--- a/Blarg.GameFramework/Blarg.GameFramework.csproj
+++ b/Blarg.GameFramework/Blarg.GameFramework.csproj
@@ -140,6 +140,7 @@
     <Compile Include="Support\ObjectPool.cs" />
     <Compile Include="Support\IPoolable.cs" />
     <Compile Include="Support\BasicObjectPool.cs" />
+    <Compile Include="Support\ObjectPools.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath32)\Microsoft\Portable\$(TargetFrameworkVersion)\Microsoft.Portable.CSharp.targets" />
   <ItemGroup>
diff --git a/Blarg.GameFramework/Support/ObjectPools.cs b/Blarg.GameFramework/Support/ObjectPools.cs
new file mode 100644
index 0000000..e84b859
--- /dev/null
+++ b/Blarg.GameFramework/Support/ObjectPools.cs
@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Reflection;
+
+namespace Blarg.GameFramework.Support
+{
+	public static class ObjectPools
+	{
+		const int INITIAL_CAPACITY = 100;
+
+		class ObjectObjectPool : ObjectPool<Object>
+		{
+			Type _type;
+
+			public ObjectObjectPool(Type type)
+				: base(INITIAL_CAPACITY)
+			{
+				_type = type;
+			}
+
+			protected override object Allocate()
+			{
+				return Activator.CreateInstance(_type);
+			}
+		}
+
+		static Dictionary<Type, ObjectObjectPool> _pools = new Dictionary<Type, ObjectObjectPool>();
+
+		static ObjectObjectPool GetPool(Type type)
+		{
+			ObjectObjectPool pool;
+			_pools.TryGetValue(type, out pool);
+			if (pool == null)
+			{
+				pool = new ObjectObjectPool(type);
+				_pools.Add(type, pool);
+			}
+			return pool;
+		}
+
+		public static T Take<T>() where T : class, new()
+		{
+			var pool = GetPool(typeof(T));
+			return (T)pool.Take();
+		}
+
+		public static void Free<T>(T obj) where T : class, new()
+		{
+			var pool = GetPool(typeof(T));
+			pool.Free(obj);
+		}
+	}
+}
+