ModernUO/Projects/UOContent/Items/Misc/Bola.cs

using System;
using Server.Mobiles;
using Server.Network;
using Server.Spells.Ninjitsu;
using Server.Targeting;

namespace Server.Items
{
  public class Bola : Item
  {
    [Constructible]
    public Bola(int amount = 1) : base(0x26AC)
    {
      Weight = 4.0;
      Stackable = true;
      Amount = amount;
    }

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

    public override void OnDoubleClick(Mobile from)
    {
      if (!IsChildOf(from.Backpack))
      {
        from.SendLocalizedMessage(1040019); // The bola must be in your pack to use it.
      }
      else if (!from.CanBeginAction<Bola>())
      {
        from.SendLocalizedMessage(1049624); // You have to wait a few moments before you can use another bola!
      }
      else if (from.Target is BolaTarget)
      {
        from.SendLocalizedMessage(1049631); // This bola is already being used.
      }
      else if (!HasFreeHands(from))
      {
        from.SendLocalizedMessage(1040015); // Your hands must be free to use this
      }
      else if (from.Mounted)
      {
        from.SendLocalizedMessage(1040016); // You cannot use this while riding a mount
      }
      else if (AnimalForm.UnderTransformation(from))
      {
        from.SendLocalizedMessage(1070902); // You can't use this while in an animal form!
      }
      else
      {
        EtherealMount.StopMounting(from);

        from.Target = new BolaTarget(this);
        from.LocalOverheadMessage(MessageType.Emote, 0x3B2, 1049632); // * You begin to swing the bola...*
        from.NonlocalOverheadMessage(MessageType.Emote, 0x3B2, 1049633,
          from.Name); // ~1_NAME~ begins to menacingly swing a bola...
      }
    }

    private static void FinishThrow(Mobile from, Mobile to)
    {
      if (Core.AOS)
        new Bola().MoveToWorld(to.Location, to.Map);

      if (to is ChaosDragoon || to is ChaosDragoonElite)
        from.SendLocalizedMessage(1042047); // You fail to knock the rider from its mount.

      IMount mt = to.Mount;
      if (mt != null && !(to is ChaosDragoon || to is ChaosDragoonElite))
        mt.Rider = null;

      if (to is PlayerMobile mobile)
      {
        if (AnimalForm.UnderTransformation(mobile))
          mobile.SendLocalizedMessage(1114066, from.Name); // ~1_NAME~ knocked you out of animal form!
        else if (mobile.Mounted) mobile.SendLocalizedMessage(1040023); // You have been knocked off of your mount!

        mobile.SetMountBlock(BlockMountType.Dazed, TimeSpan.FromSeconds(Core.ML ? 10 : 3), true);
      }

      if (Core.AOS) /* only failsafe, attacker should already be dismounted */
        (from as PlayerMobile)?.SetMountBlock(BlockMountType.BolaRecovery, TimeSpan.FromSeconds(Core.ML ? 10 : 3),
          true);

      to.Damage(1);

      Timer.DelayCall(TimeSpan.FromSeconds(2.0), from.EndAction<Bola>);
    }

    private static bool HasFreeHands(Mobile from)
    {
      Item one = from.FindItemOnLayer(Layer.OneHanded);
      Item two = from.FindItemOnLayer(Layer.TwoHanded);

      if (Core.SE)
      {
        Container pack = from.Backpack;

        if (pack != null)
        {
          if (one?.Movable == true)
          {
            pack.DropItem(one);
            one = null;
          }

          if (two?.Movable == true)
          {
            pack.DropItem(two);
            two = null;
          }
        }
      }
      else if (Core.AOS)
      {
        if (one?.Movable == true)
        {
          from.AddToBackpack(one);
          one = null;
        }

        if (two?.Movable == true)
        {
          from.AddToBackpack(two);
          two = null;
        }
      }

      return one == null && two == null;
    }

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

      writer.Write(0);
    }

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

      int version = reader.ReadInt();
    }

    public class BolaTarget : Target
    {
      private readonly Bola m_Bola;

      public BolaTarget(Bola bola) : base(8, false, TargetFlags.Harmful) => m_Bola = bola;

      protected override void OnTarget(Mobile from, object obj)
      {
        if (m_Bola.Deleted)
          return;

        if (obj is Mobile to)
        {
          if (!m_Bola.IsChildOf(from.Backpack))
          {
            from.SendLocalizedMessage(1040019); // The bola must be in your pack to use it.
          }
          else if (!HasFreeHands(from))
          {
            from.SendLocalizedMessage(1040015); // Your hands must be free to use this
          }
          else if (from.Mounted)
          {
            from.SendLocalizedMessage(1040016); // You cannot use this while riding a mount
          }
          else if (AnimalForm.UnderTransformation(from))
          {
            from.SendLocalizedMessage(1070902); // You can't use this while in an animal form!
          }
          else if (!to.Mounted && !AnimalForm.UnderTransformation(to))
          {
            from.SendLocalizedMessage(1049628); // You have no reason to throw a bola at that.
          }
          else if (!from.CanBeHarmful(to))
          {
          }
          else if (from.BeginAction<Bola>())
          {
            EtherealMount.StopMounting(from);

            from.DoHarmful(to);

            m_Bola.Consume();

            from.Direction = from.GetDirectionTo(to);
            from.Animate(11, 5, 1, true, false, 0);
            from.MovingEffect(to, 0x26AC, 10, 0, false, false);

            Timer.DelayCall(TimeSpan.FromSeconds(0.5), FinishThrow, from, to);
          }
          else
          {
            from.SendLocalizedMessage(
              1049624); // You have to wait a few moments before you can use another bola!
          }
        }
        else
        {
          from.SendLocalizedMessage(1049629); // You cannot throw a bola at that.
        }
      }
    }
  }
}