perf!: behaviour controller memory allocation issues fixed by removing the enumerable interface

Engine.Core/Abstract/IBehaviourController.cs

@@ -5,7 +5,7 @@ namespace Syntriax.Engine.Core;
 /// <summary>
 /// Represents a controller for managing <see cref="IBehaviour"/>s. Connected to an <see cref="IUniverseObject"/>.
 /// </summary>
-public interface IBehaviourController : IEntity, IHasUniverseObject, IEnumerable<IBehaviour>
+public interface IBehaviourController : IEntity, IHasUniverseObject
 {
     /// <summary>
     /// Event triggered when a <see cref="IBehaviour"/> is added to the <see cref="IBehaviourController"/>.
@@ -17,6 +17,16 @@ public interface IBehaviourController : IEntity, IHasUniverseObject, IEnumerable
     /// </summary>
     event BehaviourRemovedEventHandler? OnBehaviourRemoved;
 
+    /// <summary>
+    /// Amount of <see cref="IBehaviour"/> collected.
+    /// </summary>
+    int Count { get; }
+
+    /// <summary>
+    /// Get a <see cref="IBehaviour"/> collected by it's index.
+    /// </summary>
+    IBehaviour this[System.Index index] { get; }
+
     /// <summary>
     /// Adds a <see cref="IBehaviour"/> to the <see cref="IBehaviourController"/>.
     /// </summary>