game state DI registration fix

Author: BenMakesGames

BenMakesGames.PlayPlayMini/BenMakesGames.PlayPlayMini.csproj

@@ -5,7 +5,7 @@
     <Company>Ben Hendel-Doying</Company>
     <Description>An opinionated framework for making smallish games with MonoGame.</Description>
     <Copyright>2021-2025 Ben Hendel-Doying</Copyright>
-    <Version>7.0.0-rc1</Version>
+    <Version>7.0.0-rc2</Version>
 
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <PackageTags>monogame game engine framework di state</PackageTags>

BenMakesGames.PlayPlayMini/GameStateManagerBuilder.cs

@@ -196,7 +196,10 @@ public void Run()
             }
 
             builder.RegisterAssemblyTypes(assembly)
-                .Where(t => t.IsAssignableTo<GameState>())
+                .Where(t =>
+                    t.IsAssignableTo<GameState>() ||
+                    (t.BaseType is { IsGenericType: true } && t.BaseType.GetGenericTypeDefinition() == typeof(GameState<>))
+                )
                 .AsSelf()
                 .InstancePerDependency()
                 .OnActivating(s => serviceWatcher.RegisterService(s.Instance))