ModernUO/Scripts/Items/Misc/FlippableAttribute.cs

using System;
using System.Reflection;
using Server.Targeting;
using Server.Commands;

namespace Server.Items
{
	public class FlipCommandHandlers
	{
		public static void Initialize()
		{
			CommandSystem.Register( "Flip", AccessLevel.GameMaster, Flip_OnCommand );
		}

		[Usage( "Flip" )]
		[Description( "Turns an item." )]
		public static void Flip_OnCommand( CommandEventArgs e )
		{
			e.Mobile.Target = new FlipTarget();
		}

		private class FlipTarget : Target
		{
			public FlipTarget()
				: base( -1, false, TargetFlags.None )
			{
			}

			protected override void OnTarget( Mobile from, object targeted )
			{
				if ( targeted is Item item )
				{
					if ( item.Movable == false && from.AccessLevel == AccessLevel.Player )
						return;

					Type type = item.GetType();

					FlippableAttribute[] AttributeArray = (FlippableAttribute[])type.GetCustomAttributes( typeof( FlippableAttribute ), false );

					if ( AttributeArray.Length == 0 )
					{
						return;
					}

					FlippableAttribute fa = AttributeArray[0];

					fa.Flip( item );
				}
			}
		}
	}

	[AttributeUsage( AttributeTargets.Class )]
	public class DynamicFlipingAttribute : Attribute
	{
		public DynamicFlipingAttribute()
		{
		}
	}

	[AttributeUsage( AttributeTargets.Class )]
	public class FlippableAttribute : Attribute
	{
		public int[] ItemIDs { get; }

		public FlippableAttribute()
			: this( null )
		{
		}

		public FlippableAttribute( params int[] itemIDs )
		{
			ItemIDs = itemIDs;
		}

		public virtual void Flip( Item item )
		{
			if ( ItemIDs == null )
			{
				try
				{
					MethodInfo flipMethod = item.GetType().GetMethod( "Flip", Type.EmptyTypes );
					if ( flipMethod != null )
						flipMethod.Invoke( item, new object[0] );
				}
				catch
				{
				}

			}
			else
			{
				int index = 0;
				for( int i = 0; i < ItemIDs.Length; i++ )
				{
					if ( item.ItemID == ItemIDs[i] )
					{
						index = i + 1;
						break;
					}
				}

				if ( index > ItemIDs.Length - 1 )
					index = 0;

				item.ItemID = ItemIDs[index];
			}
		}
	}
}