Fixes parent references. (#15)

Server/Interfaces.cs

@@ -84,7 +84,7 @@ namespace Server
     void OnConnectionChanged();
     bool OnCasterMoving(Direction d);
     bool OnCasterEquipping(Item item);
-    bool OnCasterUsingObject(object o);
+    bool OnCasterUsingObject(IEntity entity);
     bool OnCastInTown(Region r);
   }
 
@@ -111,4 +111,4 @@ namespace Server
     void OnBeforeSpawn(Point3D location, Map map);
     void OnAfterSpawn();
   }
-}
+}

Server/Item.cs

@@ -3681,15 +3681,13 @@ namespace Server
           target.Map == null)
         return false;
 
-      object root = target.RootParent;
-
       if (from.AccessLevel < AccessLevel.GameMaster && !from.InRange(target.GetWorldLocation(), 2))
         return false;
       if (!from.CanSee(target) || !from.InLOS(target))
         return false;
       if (!target.IsAccessibleTo(from))
         return false;
-      if (root is Mobile mobile && !mobile.CheckNonlocalDrop(from, this, target))
+      if (target.RootParent is Mobile mobile && !mobile.CheckNonlocalDrop(from, this, target))
         return false;
       if (!from.OnDroppedItemToItem(this, target, p))
         return false;
@@ -4290,11 +4288,6 @@ namespace Server
       Delete();
     }
 
-    public virtual bool CheckBlessed(object obj)
-    {
-      return CheckBlessed(obj as Mobile);
-    }
-
     public virtual bool CheckBlessed(Mobile m)
     {
       if (m_LootType == LootType.Blessed || Mobile.InsuranceEnabled && Insured)

Server/Items/Container.cs

@@ -233,7 +233,7 @@ namespace Server.Items
         }
       }
 
-      object parent = Parent;
+      IEntity parent = Parent;
 
       while (parent != null)
       {
@@ -627,15 +627,9 @@ namespace Server.Items
 
     public virtual bool CheckContentDisplay(Mobile from)
     {
-      if (DisplaysContent)
-      {
-        object root = RootParent;
-
-        if (root == null || root is Item || root == from || from.AccessLevel > AccessLevel.Player)
-          return true;
-      }
-
-      return false;
+      return DisplaysContent && RootParent == null ||
+             RootParent is Item || RootParent == from ||
+             from.AccessLevel > AccessLevel.Player;
     }
 
     public override void OnSingleClick(Mobile from)

Server/Mobile.cs

@@ -4667,7 +4667,7 @@ namespace Server
       if (m_Spell != null && !m_Spell.OnCasterUsingObject(item))
         return;
 
-      object root = item.RootParent;
+      IEntity root = item.RootParent;
       bool okay = false;
 
       if (!Utility.InUpdateRange(this, item.GetWorldLocation()))
@@ -4789,7 +4789,7 @@ namespace Server
           }
           else
           {
-            object root = item.RootParent;
+            IEntity root = item.RootParent;
 
             if (root is Mobile mobile && !mobile.CheckNonlocalLift(from, item))
             {
@@ -4964,7 +4964,7 @@ namespace Server
       if (DragEffects && !item.Deleted)
       {
         Map map = m_Map;
-        object root = item.RootParent;
+        IEntity root = item.RootParent;
 
         if (map != null && (root == null || root is Item))
         {

Server/NativeReader.cs

@@ -56,7 +56,7 @@ namespace Server
       UnsafeNativeMethods.ReadFile(ptr, buffer, (uint)length, ref lpNumberOfBytesRead, null);
     }
 
-    internal class UnsafeNativeMethods
+    internal static class UnsafeNativeMethods
     {
       /*[DllImport("kernel32")]
       internal unsafe static extern int _lread(IntPtr hFile, void* lpBuffer, int wBytes);*/
@@ -74,10 +74,10 @@ namespace Server
       UnsafeNativeMethods.read(ptr, buffer, length);
     }
 
-    internal class UnsafeNativeMethods
+    internal static class UnsafeNativeMethods
     {
       [DllImport("libc")]
       internal static extern unsafe int read(IntPtr ptr, void* buffer, int length);
     }
   }
-}
+}

Server/Targeting/Target.cs

@@ -165,9 +165,7 @@ namespace Server.Targeting
           return;
         }
 
-        object root = item.RootParent;
-
-        if (!AllowNonlocal && root is Mobile && root != from && from.AccessLevel == AccessLevel.Player)
+        if (!AllowNonlocal && item.RootParent is Mobile && item.RootParent != from && from.AccessLevel == AccessLevel.Player)
         {
           OnNonlocalTarget(from, item);
           OnTargetFinish(from);
@@ -290,4 +288,4 @@ namespace Server.Targeting
       }
     }
   }
-}
+}