ModernUO/Projects/UOContent/Multis/PreviewHouse.cs

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

namespace Server.Multis
{
  public class PreviewHouse : BaseMulti
  {
    private List<Item> m_Components;
    private Timer m_Timer;

    public PreviewHouse(int multiID) : base(multiID)
    {
      m_Components = new List<Item>();

      MultiComponentList mcl = Components;

      for (int i = 1; i < mcl.List.Length; ++i)
      {
        MultiTileEntry entry = mcl.List[i];

        if (entry.Flags == 0)
        {
          Item item = new Static((int)entry.ItemId);

          item.MoveToWorld(new Point3D(X + entry.OffsetX, Y + entry.OffsetY, Z + entry.OffsetZ), Map);

          m_Components.Add(item);
        }
      }

      m_Timer = new DecayTimer(this);
      m_Timer.Start();
    }

    public PreviewHouse(Serial serial) : base(serial)
    {
    }

    public override void OnLocationChange(Point3D oldLocation)
    {
      base.OnLocationChange(oldLocation);

      if (m_Components == null)
        return;

      int xOffset = X - oldLocation.X;
      int yOffset = Y - oldLocation.Y;
      int zOffset = Z - oldLocation.Z;

      for (int i = 0; i < m_Components.Count; ++i)
      {
        Item item = m_Components[i];

        item.MoveToWorld(new Point3D(item.X + xOffset, item.Y + yOffset, item.Z + zOffset), Map);
      }
    }

    public override void OnMapChange()
    {
      base.OnMapChange();

      if (m_Components == null)
        return;

      for (int i = 0; i < m_Components.Count; ++i)
      {
        Item item = m_Components[i];

        item.Map = Map;
      }
    }

    public override void OnDelete()
    {
      base.OnDelete();

      if (m_Components == null)
        return;

      for (int i = 0; i < m_Components.Count; ++i)
      {
        Item item = m_Components[i];

        item.Delete();
      }
    }

    public override void OnAfterDelete()
    {
      m_Timer?.Stop();

      m_Timer = null;

      base.OnAfterDelete();
    }

    public override void Serialize(IGenericWriter writer)
    {
      base.Serialize(writer);

      writer.Write(0); // version

      writer.Write(m_Components);
    }

    public override void Deserialize(IGenericReader reader)
    {
      base.Deserialize(reader);

      int version = reader.ReadInt();

      switch (version)
      {
        case 0:
          {
            m_Components = reader.ReadStrongItemList();

            break;
          }
      }

      Timer.DelayCall(TimeSpan.Zero, Delete);
    }

    private class DecayTimer : Timer
    {
      private readonly Item m_Item;

      public DecayTimer(Item item) : base(TimeSpan.FromSeconds(20.0))
      {
        m_Item = item;
        Priority = TimerPriority.OneSecond;
      }

      protected override void OnTick()
      {
        m_Item.Delete();
      }
    }
  }
}