87 lines
3.2 KiB
C#
87 lines
3.2 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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namespace Server.Mobiles;
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public class MagicalBarrier : MonsterAbility
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{
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private HashSet<Mobile> _inactiveField;
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public bool HasField(Mobile source) => _inactiveField?.Contains(source) != true;
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public override MonsterAbilityType AbilityType => MonsterAbilityType.MagicalBarrier;
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public override MonsterAbilityTrigger AbilityTrigger =>
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MonsterAbilityTrigger.TakeDamage | MonsterAbilityTrigger.GiveDamage | MonsterAbilityTrigger.Think;
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public override TimeSpan MinTriggerCooldown => TimeSpan.FromSeconds(10.0);
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public override TimeSpan MaxTriggerCooldown => TimeSpan.FromSeconds(10.0);
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[MethodImpl(MethodImplOptions.AggressiveInlining)]
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private static bool CanUseField(BaseCreature source) => source.Hits >= source.HitsMax * 9 / 10;
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// Regeneration is subject to the cooldown, the rest are not.
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public override bool CanTrigger(BaseCreature source, MonsterAbilityTrigger trigger) =>
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trigger != MonsterAbilityTrigger.Think || base.CanTrigger(source, trigger);
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public override void Trigger(MonsterAbilityTrigger trigger, BaseCreature source, Mobile target)
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{
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if (trigger == MonsterAbilityTrigger.Think)
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{
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if (CanUseField(source) && _inactiveField?.Remove(source) == true)
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{
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// Field going up!
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source.FixedParticles(0, 10, 0, 0x2530, EffectLayer.Waist);
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if (_inactiveField?.Count == 0)
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{
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_inactiveField = null;
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}
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}
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}
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else if (trigger is MonsterAbilityTrigger.TakeSpellDamage && !CanUseField(source))
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{
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_inactiveField ??= [];
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if (_inactiveField.Add(source))
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{
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// TODO: message and effect when field turns down; cannot be verified on OSI due to a bug
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source.FixedParticles(0x3735, 1, 30, 0x251F, EffectLayer.Waist);
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}
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}
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base.Trigger(trigger, source, target);
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}
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public override void AlterMeleeDamageFrom(BaseCreature source, Mobile target, ref int damage)
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{
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if (HasField(source))
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{
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damage = 0; // no melee damage when the field is up
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source.FixedParticles(0x376A, 20, 10, 0x2530, EffectLayer.Waist);
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source.PlaySound(0x2F4);
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target.SendLocalizedMessage(1114360); // Your weapon cannot penetrate the creature's magical barrier.
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}
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}
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public override void AlterSpellDamageFrom(BaseCreature source, Mobile target, ref int damage)
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{
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if (!HasField(source))
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{
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damage = 0; // no spell damage when the field is down
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// should there be an effect when spells nullifying is on?
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source.FixedParticles(0, 10, 0, 0x2522, EffectLayer.Waist);
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target.SendLocalizedMessage(1114359); // Your attack has no effect on the creature's armor.
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}
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}
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public override void Move(BaseCreature source, Direction d)
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{
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base.Move(source, d);
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if (HasField(source) && source.Combatant != null)
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{
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source.FixedParticles(0, 10, 0, 0x2530, EffectLayer.Waist);
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}
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}
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}
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