ModernUO/Projects/UOContent/Spells/Necromancy/Wither.cs

using System;
using Server.Collections;
using Server.Items;
using Server.Mobiles;

namespace Server.Spells.Necromancy
{
    public class WitherSpell : NecromancerSpell
    {
        private static readonly SpellInfo _info = new(
            "Wither",
            "Kal Vas An Flam",
            203,
            9031,
            Reagent.NoxCrystal,
            Reagent.GraveDust,
            Reagent.PigIron
        );

        public WitherSpell(Mobile caster, Item scroll = null) : base(caster, scroll, _info)
        {
        }

        public override TimeSpan CastDelayBase => TimeSpan.FromSeconds(Core.Expansion switch
        {
            >= Expansion.SA => 1.25,
            >= Expansion.ML => 1.5,
            _ => 1.0
        });

        public override double RequiredSkill => 60.0;

        public override int RequiredMana => 23;

        public override bool DelayedDamage => false;

        public override void OnCast()
        {
            if (CheckSequence())
            {
                /* Creates a withering frost around the Caster,
                 * which deals Cold Damage to all valid targets in a radius of 5 tiles.
                 */

                var map = Caster.Map;

                if (map != null)
                {
                    using var pool = PooledRefQueue<Mobile>.Create();

                    var cbc = Caster as BaseCreature;
                    var isMonster = cbc?.Controlled == false && !cbc.Summoned;

                    var eable = Caster.GetMobilesInRange(Core.ML ? 4 : 5);
                    foreach (var m in eable)
                    {
                        if (Caster == m || !Caster.InLOS(m) || (!isMonster && !SpellHelper.ValidIndirectTarget(Caster, m)) ||
                            !Caster.CanBeHarmful(m, false))
                        {
                            continue;
                        }

                        if (isMonster)
                        {
                            if (m is BaseCreature bc)
                            {
                                if (!bc.Controlled && !bc.Summoned && bc.Team == cbc.Team)
                                {
                                    continue;
                                }
                            }
                            else if (!m.Player)
                            {
                                continue;
                            }
                        }

                        pool.Enqueue(m);
                    }

                    eable.Free();

                    Effects.PlaySound(Caster.Location, map, 0x1FB);
                    Effects.PlaySound(Caster.Location, map, 0x10B);
                    Effects.SendLocationParticles(
                        EffectItem.Create(Caster.Location, map, EffectItem.DefaultDuration),
                        0x37CC,
                        1,
                        40,
                        97,
                        3,
                        9917,
                        0
                    );

                    while (pool.Count > 0)
                    {
                        var m = pool.Dequeue();

                        Caster.DoHarmful(m);
                        m.FixedParticles(0x374A, 1, 15, 9502, 97, 3, (EffectLayer)255);

                        double damage = Utility.RandomMinMax(30, 35);

                        damage *= 300 + m.Karma / 100 + GetDamageSkill(Caster) * 10;
                        damage /= 1000;

                        var sdiBonus = AosAttributes.GetValue(Caster, AosAttribute.SpellDamage);

                        // PvP spell damage increase cap of 15% from an item's magic property in Publish 33(SE)
                        if (Core.SE && m.Player && Caster.Player && sdiBonus > 15)
                        {
                            sdiBonus = 15;
                        }

                        damage *= 100 + sdiBonus;
                        damage /= 100;

                        // TODO: cap?
                        // if (damage > 40)
                        // damage = 40;

                        SpellHelper.Damage(this, m, damage, 0, 0, 100, 0, 0);
                    }
                }
            }

            FinishSequence();
        }
    }
}