modernuo/Projects/UOContent/Commands/LocationCommand.cs

using System.Collections.Generic;
using Server.Commands.Generic;
using Server.Items;
using Server.Targeting;

namespace Server.Commands
{
    public class LocationCommand : BaseCommand
    {
        private static readonly List<int> m_DefaultGraphics = new() { 0x17AF, 0x17B0, 0x17B1, 0x17B2 };

        public LocationCommand()
        {
            AccessLevel = AccessLevel.Counselor;
            Commands = new[] { "Location", "Loc", "Pos" };
            ObjectTypes = ObjectTypes.All;
            Supports = CommandSupport.Single | CommandSupport.Multi;
            Usage = "Location [itemIds ...]";
            Description = "Retrieves the positional coordinates of a target. Displaying a message above the item, "
                          + "mobile, or environment. Environment targets will also have a graphic temporarily displayed "
                          + "on the tile. This graphic can be changed to the provided list of itemIds.";
        }

        public override void Execute(CommandEventArgs e, object obj)
        {
            if (obj is not IPoint3D point)
            {
                LogFailure("That cannot be located.");
                return;
            }

            var label = $"(x:{point.X}, y:{point.Y}, z:{point.Z})";
            if (obj is LandTarget or StaticTarget)
            {
                List<int> graphics;
                if (e.Arguments.Length == 0)
                {
                    graphics = m_DefaultGraphics;
                }
                else
                {
                    graphics = new List<int>();
                    foreach (var arg in e.Arguments)
                    {
                        if (Utility.ToInt32(arg, out var result))
                        {
                            graphics.Add(result);
                        }
                    }
                }

                var item = EffectItem.Create(new Point3D(point), e.Mobile.Map, EffectItem.DefaultDuration);
                foreach (var graphic in graphics)
                {
                    Effects.SendLocationParticles(item, graphic, 10, 50, 2023);
                }

                item.LabelTo(e.Mobile, label);
            }
            else if (obj is Mobile entity)
            {
                entity.SayTo(e.Mobile, label);
            }
            else if (obj is Item item)
            {
                item.LabelTo(e.Mobile, label);
            }

            AddResponse($"Location: {label}");
        }
    }
}