From 88558f29b08f22a0aa4e0dc277b096cad73826ed Mon Sep 17 00:00:00 2001
From: Linus <linusvanelswijk@gmail.com>
Date: Fri, 25 Mar 2016 18:20:34 +0100
Subject: [PATCH] Added abstract WrapperComponent class

---
 .../Providers/TypeReflectionProvider.cs       |  1 +
 Entitas/Entitas/WrapperComponent.cs           | 23 +++++++++++++++++++
 2 files changed, 24 insertions(+)
 create mode 100644 Entitas/Entitas/WrapperComponent.cs

diff --git a/Entitas/Entitas/CodeGenerator/Providers/TypeReflectionProvider.cs b/Entitas/Entitas/CodeGenerator/Providers/TypeReflectionProvider.cs
index a3170ceb4..bfdf07f26 100644
--- a/Entitas/Entitas/CodeGenerator/Providers/TypeReflectionProvider.cs
+++ b/Entitas/Entitas/CodeGenerator/Providers/TypeReflectionProvider.cs
@@ -20,6 +20,7 @@ public TypeReflectionProvider(Type[] types, string[] poolNames) {
         public static ComponentInfo[] GetComponentInfos(Type[] types) {
             return types
                 .Where(type => !type.IsInterface)
+                .Where(type => !type.IsAbstract)
                 .Where(type => type.GetInterfaces().Any(i => i.FullName == "Entitas.IComponent"))
                 .Select(type => CreateComponentInfo(type))
                 .ToArray();
diff --git a/Entitas/Entitas/WrapperComponent.cs b/Entitas/Entitas/WrapperComponent.cs
new file mode 100644
index 000000000..25319b07b
--- /dev/null
+++ b/Entitas/Entitas/WrapperComponent.cs
@@ -0,0 +1,23 @@
+namespace Entitas {
+
+    /// Inherit from this class if you want a component that is just a wrapper for some type.
+    /// All attributes that work for normal components also work for components that inherit from this class.
+    /// The body of the inheriting class should remain empty.
+    /// Example use:
+    /// <example>
+    ///     // definition
+    ///     public class NameComponent : WrapperComponent&lt;string&gt; { }
+    ///     
+    ///     // usage (after generator has run)
+    ///     public string PhoneNumber(Entity e, Dictionary&lt;string, string&gt; phoneBook) {
+    ///         if(e.Name == "Bob") { return "012 333 4545"; }
+    ///
+    ///         return phoneBook[e.Name];
+    ///     }
+    /// </example>
+    public abstract class WrapperComponent<T> : IComponent {
+        public T value;
+
+        public static implicit operator T(WrapperComponent<T> component) { return component.value; }
+    }
+}