ModernUO/Projects/UOContent/Mobiles/Familiars/BaseFamiliar.cs

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

namespace Server.Mobiles
{
    public abstract class BaseFamiliar : BaseCreature
    {
        private bool m_LastHidden;

        public BaseFamiliar() : base(AIType.AI_Melee)
        {
            SetSpeed(0.1, 0.11);
        }

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

        public override bool BardImmune => true;
        public override Poison PoisonImmune => Poison.Lethal;
        public override bool Commandable => false;

        public override bool PlayerRangeSensitive => false;

        public virtual void RangeCheck()
        {
            if (Deleted || ControlMaster?.Deleted != false)
            {
                return;
            }

            var range = RangeHome - 2;

            if (InRange(ControlMaster.Location, RangeHome))
            {
                return;
            }

            var master = ControlMaster;

            var m_Loc = Point3D.Zero;

            if (Map != master.Map)
            {
                return;
            }

            var x = X > master.X ? master.X + range : master.X - range;
            var y = Y > master.Y ? master.Y + range : master.Y - range;

            for (var i = 0; i < 10; i++)
            {
                m_Loc.X = x + Utility.RandomMinMax(-1, 1);
                m_Loc.Y = y + Utility.RandomMinMax(-1, 1);

                m_Loc.Z = Map.GetAverageZ(m_Loc.X, m_Loc.Y);

                if (Map.CanSpawnMobile(m_Loc))
                {
                    break;
                }

                m_Loc = master.Location;
            }

            if (!Deleted)
            {
                SetLocation(m_Loc, true);
            }
        }

        public override void OnThink()
        {
            var master = ControlMaster;

            if (Deleted)
            {
                return;
            }

            if (master?.Deleted != false)
            {
                DropPackContents();
                EndRelease(null);
                return;
            }

            RangeCheck();

            if (m_LastHidden != master.Hidden)
            {
                Hidden = m_LastHidden = master.Hidden;
            }

            if (AIObject?.WalkMobileRange(master, 5, true, 1, 1) == true)
            {
                Warmode = master.Warmode;
                Combatant = master.Combatant;

                CurrentSpeed = 0.10;
            }
            else
            {
                Warmode = false;
                FocusMob = Combatant = null;

                CurrentSpeed = 0.01;
            }
        }

        public override void GetContextMenuEntries(Mobile from, List<ContextMenuEntry> list)
        {
            base.GetContextMenuEntries(from, list);

            if (from.Alive && Controlled && from == ControlMaster && from.InRange(this, 14))
            {
                list.Add(new ReleaseEntry(from, this));
            }
        }

        public virtual void BeginRelease(Mobile from)
        {
            if (!Deleted && Controlled && from == ControlMaster && from.CheckAlive())
            {
                EndRelease(from);
            }
        }

        public virtual void EndRelease(Mobile from)
        {
            if (from?.CheckAlive() != false && !Deleted && Controlled && from == ControlMaster)
            {
                Effects.SendLocationParticles(
                    EffectItem.Create(Location, Map, EffectItem.DefaultDuration),
                    0x3728,
                    1,
                    13,
                    2100,
                    3,
                    5042,
                    0
                );
                PlaySound(0x201);
                Delete();
            }
        }

        public virtual void DropPackContents()
        {
            var map = Map;
            var pack = Backpack;

            if (map != null && map != Map.Internal && pack != null)
            {
                var list = new List<Item>(pack.Items);

                for (var i = 0; i < list.Count; ++i)
                {
                    list[i].MoveToWorld(Location, map);
                }
            }
        }

        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();

            ValidationQueue<BaseFamiliar>.Add(this);
        }

        public void Validate()
        {
            DropPackContents();
            Delete();
        }

        private class ReleaseEntry : ContextMenuEntry
        {
            private readonly BaseFamiliar m_Familiar;
            private readonly Mobile m_From;

            public ReleaseEntry(Mobile from, BaseFamiliar familiar) : base(6118, 14)
            {
                m_From = from;
                m_Familiar = familiar;
            }

            public override void OnClick()
            {
                if (!m_Familiar.Deleted && m_Familiar.Controlled && m_From == m_Familiar.ControlMaster &&
                    m_From.CheckAlive())
                {
                    m_Familiar.BeginRelease(m_From);
                }
            }
        }
    }
}