refactor!: renamed GameManager to Universe and HierarchyObject to UniverseObject

Engine.Core/Extensions/UniverseObjectExtensions.cs

@@ -0,0 +1,41 @@
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+
+using Syntriax.Engine.Core.Abstract;
+
+namespace Syntriax.Engine.Core;
+
+public static class UniverseObjectExtensions
+{
+    public static T SetUniverseObject<T>(this T universeObject, string? name = "", IUniverseObject? parent = null) where T : IUniverseObject
+    {
+        if (!string.IsNullOrWhiteSpace(name))
+            universeObject.Name = name;
+        if (parent is not null)
+            universeObject.SetParent(parent);
+        return universeObject;
+    }
+
+    public static T? GetUniverseObject<T>(this IEnumerable<IUniverseObject> universeObjects) where T : class
+    {
+        foreach (IUniverseObject universeObject in universeObjects)
+            if (universeObject is T @object)
+                return @object;
+
+        return default;
+    }
+
+    public static bool TryGetUniverseObject<T>(this IEnumerable<IUniverseObject> universeObjects, [NotNullWhen(returnValue: true)] out T? behaviour) where T : class
+    {
+        behaviour = GetUniverseObject<T>(universeObjects);
+        return behaviour is not null;
+    }
+
+    public static void GetUniverseObjects<T>(this IEnumerable<IUniverseObject> universeObjects, List<T> behaviours) where T : class
+    {
+        behaviours.Clear();
+        foreach (IUniverseObject universeObject in universeObjects)
+            if (universeObject is T @object)
+                behaviours.Add(@object);
+    }
+}