feat: IBehaviourController.GetBehaviour

Engine.Core/Abstract/IBehaviourController.cs

@@ -51,6 +51,15 @@ public interface IBehaviourController : IAssignableGameObject, IEnumerable<IBeha
     /// <returns>The instantiated <see cref="IBehaviour"/> class after initialization.</returns>
     T AddBehaviour<T>(params object?[]? args) where T : class, IBehaviour;
 
+    /// <summary>
+    /// Looks up and returns the <see cref="IBehaviour"/> that is controlled by the <see cref="IBehaviourController"/>. 
+    /// </summary>
+    /// <typeparam name="T">An implemented class or <see cref="interface"/></typeparam>
+    /// <returns> 
+    /// <see cref="T"/>, if the type of <see cref="IBehaviour"/> is present in the <see cref="IBehaviourController"/>, <see cref="null"/> if not.
+    /// </returns>
+    T? GetBehaviour<T>();
+
     /// <summary>
     /// Looks up and tries to get the <see cref="IBehaviour"/> that is controlled by the <see cref="IBehaviourController"/>. 
     /// </summary>

Engine.Core/BehaviourController.cs

@@ -41,19 +41,19 @@ public class BehaviourController : IBehaviourController
     public T AddBehaviour<T>(params object?[]? args) where T : class, IBehaviour
         => AddBehaviour(new Factory.BehaviourFactory().Instantiate<T>(_gameObject, args));
 
-    public bool TryGetBehaviour<T>([NotNullWhen(returnValue: true)] out T? behaviour)
+    public T? GetBehaviour<T>()
     {
         foreach (var behaviourItem in behaviours)
-        {
-            if (behaviourItem is not T result)
-                continue;
+            if (behaviourItem is T result)
+                return result;
 
-            behaviour = result;
-            return true;
-        }
+        return default;
+    }
 
-        behaviour = default;
-        return false;
+    public bool TryGetBehaviour<T>([NotNullWhen(returnValue: true)] out T? behaviour)
+    {
+        behaviour = GetBehaviour<T>();
+        return behaviour is not null;
     }
 
     public IList<T> GetBehaviours<T>()