ModernUO/Projects/UOContent/Spells/Necromancy/CorpseSkin.cs
2022-07-16 22:32:51 -07:00

145 lines
4.3 KiB
C#

using System;
using System.Collections.Generic;
using Server.Targeting;
namespace Server.Spells.Necromancy
{
public class CorpseSkinSpell : NecromancerSpell, ISpellTargetingMobile
{
private static readonly SpellInfo _info = new(
"Corpse Skin",
"In Agle Corp Ylem",
203,
9051,
Reagent.BatWing,
Reagent.GraveDust
);
private static readonly Dictionary<Mobile, ExpireTimer> _table = new();
public CorpseSkinSpell(Mobile caster, Item scroll = null) : base(caster, scroll, _info)
{
}
public override TimeSpan CastDelayBase => TimeSpan.FromSeconds(1.5);
public override double RequiredSkill => 20.0;
public override int RequiredMana => 11;
public void Target(Mobile m)
{
if (m == null)
{
return;
}
if (CheckHSequence(m))
{
SpellHelper.Turn(Caster, m);
/* Transmogrifies the flesh of the target creature or player to resemble rotted corpse flesh,
* making them more vulnerable to Fire and Poison damage,
* but increasing their resistance to Physical and Cold damage.
*
* The effect lasts for ((Spirit Speak skill level - target's Resist Magic skill level) / 25 ) + 40 seconds.
*
* NOTE: Algorithm above is fixed point, should be:
* ((ss-mr)/2.5) + 40
*
* NOTE: Resistance is not checked if targeting yourself
*/
if (_table.TryGetValue(m, out var timer))
{
timer.DoExpire();
}
else
{
m.SendLocalizedMessage(1061689); // Your skin turns dry and corpselike.
}
m.Spell?.OnCasterHurt();
m.FixedParticles(0x373A, 1, 15, 9913, 67, 7, EffectLayer.Head);
m.PlaySound(0x1BB);
var ss = GetDamageSkill(Caster);
var mr = Caster == m ? 0.0 : GetResistSkill(m);
m.CheckSkill(SkillName.MagicResist, 0.0, 120.0); // Skill check for gain
var duration = TimeSpan.FromSeconds((ss - mr) / 2.5 + 40.0);
ResistanceMod[] mods =
{
new(ResistanceType.Fire, -15),
new(ResistanceType.Poison, -15),
new(ResistanceType.Cold, +10),
new(ResistanceType.Physical, +10)
};
timer = new ExpireTimer(m, mods, duration);
timer.Start();
BuffInfo.AddBuff(m, new BuffInfo(BuffIcon.CorpseSkin, 1075663, duration, m));
_table[m] = timer;
for (var i = 0; i < mods.Length; ++i)
{
m.AddResistanceMod(mods[i]);
}
HarmfulSpell(m);
}
FinishSequence();
}
public override void OnCast()
{
Caster.Target = new SpellTargetMobile(this, TargetFlags.Harmful, Core.ML ? 10 : 12);
}
public static bool RemoveCurse(Mobile m)
{
if (!_table.TryGetValue(m, out var t))
{
return false;
}
m.SendLocalizedMessage(1061688); // Your skin returns to normal.
t?.DoExpire();
return true;
}
private class ExpireTimer : Timer
{
private Mobile _mobile;
private ResistanceMod[] _mods;
public ExpireTimer(Mobile m, ResistanceMod[] mods, TimeSpan delay) : base(delay)
{
_mobile = m;
_mods = mods;
}
public void DoExpire()
{
for (var i = 0; i < _mods.Length; ++i)
{
_mobile.RemoveResistanceMod(_mods[i]);
}
Stop();
BuffInfo.RemoveBuff(_mobile, BuffIcon.CorpseSkin);
_table.Remove(_mobile);
}
protected override void OnTick()
{
_mobile.SendLocalizedMessage(1061688); // Your skin returns to normal.
DoExpire();
}
}
}
}