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.
            }

            var 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.StartTimer(TimeSpan.FromSeconds(2.0), from.EndAction<Bola>);
        }

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

            if (Core.SE)
            {
                var 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);

            var 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.StartTimer(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.
                }
            }
        }
    }
}