ModernUO/Scripts/Items/Shields/BaseShield.cs

using Server.Network;

namespace Server.Items
{
	public class BaseShield : BaseArmor
	{
		public override ArmorMaterialType MaterialType => ArmorMaterialType.Plate;

		public BaseShield( int itemID ) : base( itemID )
		{
		}

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

		public override void Serialize( GenericWriter writer )
		{
			base.Serialize( writer );

			writer.Write( (int) 1 );//version
		}

		public override void Deserialize( GenericReader reader )
		{
			base.Deserialize( reader );

			int version = reader.ReadInt();

			if ( version < 1 )
			{
				if ( this is Aegis )
					return;

				// The 15 bonus points to resistances are not applied to shields on OSI.
				PhysicalBonus = 0;
				FireBonus = 0;
				ColdBonus = 0;
				PoisonBonus = 0;
				EnergyBonus = 0;
			}
		}

		public override double ArmorRating
		{
			get
			{
				Mobile m = Parent as Mobile;
				double ar = base.ArmorRating;

				if ( m != null )
					return ( ( m.Skills[SkillName.Parry].Value * ar ) / 200.0 ) + 1.0;
				return ar;
			}
		}

		public override int OnHit( BaseWeapon weapon, int damage )
		{
			if ( Core.AOS )
			{
				if ( ArmorAttributes.SelfRepair > Utility.Random( 10 ) )
				{
					HitPoints += 2;
				}
				else
				{
					double halfArmor = ArmorRating / 2.0;
					int absorbed = (int)(halfArmor + (halfArmor*Utility.RandomDouble()));

					if ( absorbed < 2 )
						absorbed = 2;

					int wear;

					if ( weapon.Type == WeaponType.Bashing )
						wear = (absorbed / 2);
					else
						wear = Utility.Random( 2 );

					if ( wear > 0 && MaxHitPoints > 0 )
					{
						if ( HitPoints >= wear )
						{
							HitPoints -= wear;
							wear = 0;
						}
						else
						{
							wear -= HitPoints;
							HitPoints = 0;
						}

						if ( wear > 0 )
						{
							if ( MaxHitPoints > wear )
							{
								MaxHitPoints -= wear;

								if ( Parent is Mobile mobile )
									mobile.LocalOverheadMessage( MessageType.Regular, 0x3B2, 1061121 ); // Your equipment is severely damaged.
							}
							else
							{
								Delete();
							}
						}
					}
				}

				return 0;
			}

			if ( !(Parent is Mobile owner) )
				return damage;

			double ar = ArmorRating;
			double chance = (owner.Skills[SkillName.Parry].Value - (ar * 2.0)) / 100.0;

			if ( chance < 0.01 )
				chance = 0.01;
			/*
			FORMULA: Displayed AR = ((Parrying Skill * Base AR of Shield) <20> 200) + 1

			FORMULA: % Chance of Blocking = parry skill - (shieldAR * 2)

			FORMULA: Melee Damage Absorbed = (AR of Shield) / 2 | Archery Damage Absorbed = AR of Shield
			*/
			if ( owner.CheckSkill( SkillName.Parry, chance ) )
			{
				if ( weapon.Skill == SkillName.Archery )
					damage -= (int)ar;
				else
					damage -= (int)(ar / 2.0);

				if ( damage < 0 )
					damage = 0;

				owner.FixedEffect( 0x37B9, 10, 16 );

				if ( 25 > Utility.Random( 100 ) ) // 25% chance to lower durability
				{
					int wear = Utility.Random( 2 );

					if ( wear > 0 && MaxHitPoints > 0 )
					{
						if ( HitPoints >= wear )
						{
							HitPoints -= wear;
							wear = 0;
						}
						else
						{
							wear -= HitPoints;
							HitPoints = 0;
						}

						if ( wear > 0 )
						{
							if ( MaxHitPoints > wear )
							{
								MaxHitPoints -= wear;

								((Mobile)Parent).LocalOverheadMessage( MessageType.Regular, 0x3B2, 1061121 ); // Your equipment is severely damaged.
							}
							else
							{
								Delete();
							}
						}
					}
				}
			}

			return damage;
		}
	}
}