add OnSingleClick for BulkOrderBook and Aquarium

allow primary LadderController instance to be deleted
add MessageRuleset method to DuelContext

Scripts/Engines/BulkOrders/Books/BulkOrderBook.cs

@@ -273,6 +273,16 @@ namespace Server.Engines.BulkOrders
 				list.Add( 1062481, m_BookName ); // Book Name: ~1_val~
 		}
 
+		public override void OnSingleClick(Mobile from)
+		{
+			base.OnSingleClick(from);
+
+			LabelTo(from, 1062344, m_Entries.Count.ToString()); // Deeds in book: ~1_val~
+
+			if (!String.IsNullOrEmpty(m_BookName))
+				LabelTo(from, 1062481, m_BookName);
+		}
+
 		public override void GetContextMenuEntries( Mobile from, List<ContextMenuEntry> list )
 		{
 			base.GetContextMenuEntries( from, list );

Scripts/Engines/ConPVP/DuelContext.cs

@@ -1956,6 +1956,56 @@ namespace Server.Engines.ConPVP
 			}
 		}
 
+		private void MessageRuleset( Mobile mob ) {
+			if ( m_Ruleset == null ) {
+				return;
+			}
+
+			Ruleset ruleset = m_Ruleset;
+			Ruleset basedef = ruleset.Base;
+
+			mob.SendMessage( "Ruleset: {0}", basedef.Title );
+
+			BitArray defs;
+
+			if ( ruleset.Flavors.Count > 0 )
+			{
+				defs = new BitArray( basedef.Options );
+
+				for ( int i = 0; i < ruleset.Flavors.Count; ++i ) {
+					defs.Or( ((Ruleset)ruleset.Flavors[i]).Options );
+
+					mob.SendMessage( " + {0}", ((Ruleset)ruleset.Flavors[i]).Title );
+				}
+			}
+			else
+			{
+				defs = basedef.Options;
+			}
+
+			int changes = 0;
+
+			BitArray opts = ruleset.Options;
+
+			for ( int i = 0; i < opts.Length; ++i )
+			{
+				if ( defs[i] != opts[i] ) {
+					string name = ruleset.Layout.FindByIndex( i );
+
+					if ( name != null ) // sanity
+					{
+						++changes;
+
+						if ( changes == 1 ) {
+							mob.SendMessage( "Modifications:" );
+						}
+
+						mob.SendMessage( "{0}: {1}", name, opts[i] ? "enabled" : "disabled" );
+					}
+				}
+			}
+		}
+
 		public void SendBeginGump( int count )
 		{
 			if ( !m_Registered || m_Finished )

Scripts/Engines/ConPVP/Ladder.cs

@@ -30,8 +30,10 @@ namespace Server.Engines.ConPVP
 
 		public override void Delete()
 		{
-			if ( Ladder.Instance != m_Ladder )
-				base.Delete();
+			if ( Ladder.Instance == m_Ladder )
+				Ladder.Instance = null;
+
+			base.Delete();
 		}
 
 		public LadderController( Serial serial ) : base( serial )