implemented functions from NativeFunctions.cs

src-csharp/GameObject.cs

@@ -39,7 +39,7 @@ public class GameObject
 
     static public GameObject Create()
     {
-        NativeMethods.createGameObject(out ulong id, out uint index);
+        NativeFunctions.createGameObject(out ulong id, out uint index);
         var o = new GameObject(id, index);
         return o;
     }
@@ -49,7 +49,7 @@ public class GameObject
         if(_isDestroyed)
             return;
 
-        _isDestroyed = NativeMethods.destroyGameObject(_index);
+        _isDestroyed = NativeFunctions.freeGameObject(_index);
         if(!_isDestroyed)
             throw new Exception($"Can't destroy GameObject({_id})");
     }

src-csharp/NativeFunctions.cs

@@ -3,11 +3,11 @@ using System.Runtime.InteropServices;
 
 namespace Ougge;
 
-internal static class NativeMethods
+internal static class NativeFunctions
 {
-    [DllImport("__Internal")]
-    internal extern static bool destroyGameObject(uint index);
-    
     [DllImport("__Internal")]
     internal extern static void createGameObject(out ulong id, out uint index);
+
+    [DllImport("__Internal")]
+    internal extern static bool freeGameObject(uint index);   
 }