Aura.Channel.World.Entities.Creature.ModifyLife C# (CSharp) Method

		public void ModifyLife(float amount)
		{
			this.Life += amount;
			Send.StatUpdate(this, StatUpdateType.Private, Stat.Life, Stat.LifeInjured);
			Send.StatUpdate(this, StatUpdateType.Public, Stat.Life, Stat.LifeInjured);
		}

		/// <summary>
		/// Uses WM, attacking targets.
		/// </summary>
		/// <param name="attacker"></param>
		/// <param name="skill"></param>
		/// <param name="targetAreaId"></param>
		/// <param name="unkInt1"></param>
		/// <param name="unkInt2"></param>
		public void Use(Creature attacker, Skill skill, long targetAreaId = 0, int unkInt1 = 0, int unkInt2 = 0)
		{
			bool wasKnockedDown = (attacker.IsKnockedDown || attacker.WasKnockedBack);
			if ((attacker.Stun > 500 && wasKnockedDown || attacker.IsStunned && !wasKnockedDown || DateTime.Now.AddMilliseconds(2000) < attacker.AttackDelayTime && (wasKnockedDown)) && attacker.InterceptingSkillId == SkillId.None)
			{
				Send.SkillUseSilentCancel(attacker);
				return;
			}
			var range = this.GetRange(attacker, skill);

			ICollection<Creature> targets = attacker.GetTargetableCreaturesInRange(range, true).Where(t => !(DateTime.Now.AddMilliseconds(2000) < t.NotReadyToBeHitTime)).ToList(); //Able to be attacked at 1/3 of knock down time.

			// Check targets
			if (targets.Count == 0)
			{
				Send.Notice(attacker, Localization.Get("There isn't a target nearby to use that on."));
				Send.SkillUseSilentCancel(attacker);
				return;
			}

			// Create actions
			var cap = new CombatActionPack(attacker, skill.Info.Id);

			var aAction = new AttackerAction(CombatActionType.SpecialHit, attacker, skill.Info.Id, targetAreaId);
			aAction.Set(AttackerOptions.Result);

			cap.Add(aAction);

			var survived = new List<Creature>();

			var skipped = new List<Creature>();

			var i = 0;
			foreach (var target in targets)
			{
				i++;

				target.StopMove();

				Skill smash = target.Skills.Get(SkillId.Smash);
				if (smash != null && target.Skills.IsReady(SkillId.Smash) && !attacker.IsPlayer)
					attacker.InterceptingSkillId = SkillId.Smash;
				TargetAction tAction;
				if (attacker.InterceptingSkillId == SkillId.Smash && target.GetPosition().InRange(attacker.GetPosition(), target.AttackRangeFor(attacker)))
				{
					aAction.Options |= AttackerOptions.Result;
					tAction = new TargetAction(CombatActionType.CounteredHit, target, attacker, SkillId.Smash);
					tAction.Options |= TargetOptions.Result;

				}
				else
				{
					tAction = new TargetAction(CombatActionType.TakeHit, target, attacker, skill.Info.Id);
				}
				attacker.InterceptingSkillId = SkillId.None;
				tAction.Delay = 300; // Usually 300, sometimes 350?

				// Calculate damage
				float damage = 0f;
				if (attacker.RightHand != null && (
				attacker.RightHand.Data.HasTag("/weapon/bow01/") ||
				attacker.RightHand.Data.HasTag("/weapon/bow/") ||
				attacker.RightHand.Data.HasTag("/weapon/crossbow/") ||
				attacker.RightHand.Data.HasTag("/weapon/shuriken/") ||
				attacker.RightHand.Data.HasTag("/weapon/atlatl/") ||
				attacker.RightHand.Data.HasTag("/weapon/gun/dualgun/")))
				{
					damage = attacker.GetRndBareHandDamage();
				}
				else
				{
					damage = attacker.GetRndTotalDamage();
				}
				damage *= skill.RankData.Var1 / 100f;

				// Handle skills and reductions
				var allCrit = false;
				var critSkill = target.Skills.Get(SkillId.CriticalHit);
				if (allCrit)
				{
					// Add crit bonus
					var bonus = critSkill.RankData.Var1 / 100f;
					damage = damage + (damage * bonus);

					// Set target option
					tAction.Set(TargetOptions.Critical);
				}
				else if (i == 1)
				{

					CriticalHit.Handle(attacker, attacker.GetTotalCritChance(0), ref damage, tAction);
					if (tAction.Has(TargetOptions.Critical))
						allCrit = true;
				}
				var maxDamage = damage; //Damage without Defense and Protection
				SkillHelper.HandleDefenseProtection(target, ref damage);
				Defense.Handle(aAction, tAction, ref damage);
				ManaShield.Handle(target, ref damage, tAction, maxDamage);

				// Clean Hit if not defended nor critical
				if (!tAction.Is(CombatActionType.Defended) && !tAction.Has(TargetOptions.Critical))
					tAction.Set(TargetOptions.CleanHit);

				// Take damage if any is left
				if (damage > 0)
					target.TakeDamage(tAction.Damage = damage, attacker);

				// Finish if dead, knock down if not defended
				if (target.IsDead)
					tAction.Set(TargetOptions.KnockDownFinish);
				else if (!tAction.Is(CombatActionType.Defended))
					tAction.Set(TargetOptions.KnockDown);

				// Anger Management
				if (!target.IsDead)
					survived.Add(target);

				if (target.UseBattleStanceFromAOE)
					target.IsInBattleStance = true;

				// Stun & knock back
				aAction.Stun = CombatMastery.GetAttackerStun(attacker.AverageKnockCount, attacker.AverageAttackSpeed, true);

				if (!tAction.Is(CombatActionType.Defended))
				{
					tAction.Stun = CombatMastery.GetTargetStun(attacker.AverageKnockCount, attacker.AverageAttackSpeed, true);
					target.Stability = Creature.MinStability;
					attacker.Shove(target, KnockbackDistance);
				}

				// Add action
				cap.Add(tAction);
			}

			// Only select a random aggro if there is no aggro yet,
			// WM only aggroes one target at a time.
			if (survived.Count != 0 && attacker.Region.CountAggro(attacker) < 1)
			{
				var rnd = RandomProvider.Get();
				var aggroTarget = survived.Random();
				aggroTarget.Aggro(attacker);
			}

			// Reduce life in old combat system
			if (!AuraData.FeaturesDb.IsEnabled("CombatSystemRenewal"))
			{
				var amount = (attacker.LifeMax < 10 ? 2 : attacker.LifeMax / 10);
				attacker.ModifyLife(-amount);

				attacker.InvincibilityTime = DateTime.Now.AddMilliseconds(2300);
			}

			// Spin it~
			Send.UseMotion(attacker, 8, 4);

			cap.Handle();

			Send.SkillUse(attacker, skill.Info.Id, targetAreaId, unkInt1, unkInt2);

			skill.Stacks = 0;
		}