add: Item Manager

src/PoloniumRegistry.cs

@@ -32,6 +32,39 @@ public class PoloniumRegistry
     // ReSharper disable once CollectionNeverQueried.Global
     [RegistryPassThrough(true)]
     public HashSet<ITimeConsumer> TimeConsumers { get; } = new();
-    
+
+    public static class Action<TAction> 
+        where TAction : AgentAction
+    {
+        // ReSharper disable once StaticMemberInGenericType
+        public static string Name { get; set; }
+    }
+
+
+    public static class SkinRegistry<TSkin>
+        where TSkin : Polonium.SkinManagers.Skin
+    {
+        // ReSharper disable once StaticMemberInGenericType
+        public static Color[] PaletteRoots { get; set; }
+        // ReSharper disable once StaticMemberInGenericType
+        public static Dictionary<Color, Color[]> PaletteMap { get; set; }
+    }
+
+    public static class Asset<TAsset>
+        where TAsset : Node
+    {
+        private static readonly Queue<TAsset> Pool = new();
+        public static PackedScene Scene { get; set; }
+        private static TAsset Instance => Scene.Instantiate<TAsset>();
+        public static TAsset Get() => Pool.Count > 0 ? Pool.Dequeue() : Instance;
+
+        public static void Return(TAsset asset)
+        {
+            if (Pool.Count < 10)
+                Pool.Enqueue(asset);
+            else
+                asset.QueueFree();
+        }
+    }
 
 }