hondacrx
0e77439e20
Port From (https://github.com/TrinityCore/TrinityCore/commit/bf12bae46746149d870cd3e52ccd610f0a975047)
802 lines
31 KiB
C#
802 lines
31 KiB
C#
/*
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* Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using Framework.Constants;
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using Game.Combat;
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using Game.Entities;
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using Game.Spells;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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namespace Game.AI
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{
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public class UnitAI
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{
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public UnitAI(Unit _unit)
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{
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me = _unit;
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}
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public virtual void AttackStart(Unit victim)
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{
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if (victim != null && me.Attack(victim, true))
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{
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// Clear distracted state on attacking
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if (me.HasUnitState(UnitState.Distracted))
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{
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me.ClearUnitState(UnitState.Distracted);
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me.GetMotionMaster().Clear();
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}
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me.GetMotionMaster().MoveChase(victim);
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}
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}
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public void AttackStartCaster(Unit victim, float dist)
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{
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if (victim != null && me.Attack(victim, false))
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me.GetMotionMaster().MoveChase(victim, dist);
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}
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ThreatManager GetThreatManager()
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{
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return me.GetThreatManager();
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}
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void SortByDistance(List<Unit> targets, bool ascending)
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{
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targets.Sort(new ObjectDistanceOrderPred(me, true));
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}
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public void DoMeleeAttackIfReady()
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{
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if (me.HasUnitState(UnitState.Casting))
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return;
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Unit victim = me.GetVictim();
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if (!me.IsWithinMeleeRange(victim))
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return;
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//Make sure our attack is ready and we aren't currently casting before checking distance
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if (me.IsAttackReady())
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{
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if (ShouldSparWith(victim))
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me.FakeAttackerStateUpdate(victim);
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else
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me.AttackerStateUpdate(victim);
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me.ResetAttackTimer();
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}
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if (me.HaveOffhandWeapon() && me.IsAttackReady(WeaponAttackType.OffAttack))
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{
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if (ShouldSparWith(victim))
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me.FakeAttackerStateUpdate(victim, WeaponAttackType.OffAttack);
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else
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me.AttackerStateUpdate(victim, WeaponAttackType.OffAttack);
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me.ResetAttackTimer(WeaponAttackType.OffAttack);
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}
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}
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public bool DoSpellAttackIfReady(uint spell)
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{
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if (me.HasUnitState(UnitState.Casting) || !me.IsAttackReady())
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return true;
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var spellInfo = Global.SpellMgr.GetSpellInfo(spell, me.GetMap().GetDifficultyID());
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if (spellInfo != null)
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{
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if (me.IsWithinCombatRange(me.GetVictim(), spellInfo.GetMaxRange(false)))
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{
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me.CastSpell(me.GetVictim(), spellInfo, TriggerCastFlags.None);
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me.ResetAttackTimer();
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return true;
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}
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}
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return false;
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}
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/// <summary>
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/// Select the best target (in <targetType> order) from the threat list that fulfill the following:
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/// - Not among the first <offset> entries in <targetType> order (or MAXTHREAT order, if <targetType> is RANDOM).
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/// - Within at most <dist> yards (if dist > 0.0f)
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/// - At least -<dist> yards away (if dist < 0.0f)
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/// - Is a player (if playerOnly = true)
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/// - Not the current tank (if withTank = false)
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/// - Has aura with ID <aura> (if aura > 0)
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/// - Does not have aura with ID -<aura> (if aura < 0)
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/// </summary>
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public Unit SelectTarget(SelectAggroTarget targetType, uint offset = 0, float dist = 0.0f, bool playerOnly = false, bool withTank = true, int aura = 0)
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{
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return SelectTarget(targetType, offset, new DefaultTargetSelector(me, dist, playerOnly, withTank, aura));
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}
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/// <summary>
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/// Select the best target (in <targetType> order) satisfying <predicate> from the threat list.
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/// If <offset> is nonzero, the first <offset> entries in <targetType> order (or MAXTHREAT order, if <targetType> is RANDOM) are skipped.
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/// </summary>
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public Unit SelectTarget(SelectAggroTarget targetType, uint offset, ICheck<Unit> selector)
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{
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ThreatManager mgr = GetThreatManager();
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// shortcut: if we ignore the first <offset> elements, and there are at most <offset> elements, then we ignore ALL elements
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if (mgr.GetThreatListSize() <= offset)
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return null;
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List<Unit> targetList = SelectTargetList((uint)mgr.GetThreatListSize(), targetType, offset, selector);
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// maybe nothing fulfills the predicate
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if (targetList.Empty())
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return null;
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switch (targetType)
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{
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case SelectAggroTarget.MaxThreat:
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case SelectAggroTarget.MinThreat:
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case SelectAggroTarget.MaxDistance:
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case SelectAggroTarget.MinDistance:
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return targetList[0];
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case SelectAggroTarget.Random:
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return targetList.SelectRandom();
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default:
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return null;
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}
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}
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/// <summary>
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/// Select the best (up to) <num> targets (in <targetType> order) from the threat list that fulfill the following:
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/// - Not among the first <offset> entries in <targetType> order (or MAXTHREAT order, if <targetType> is RANDOM).
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/// - Within at most <dist> yards (if dist > 0.0f)
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/// - At least -<dist> yards away (if dist < 0.0f)
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/// - Is a player (if playerOnly = true)
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/// - Not the current tank (if withTank = false)
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/// - Has aura with ID <aura> (if aura > 0)
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/// - Does not have aura with ID -<aura> (if aura < 0)
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/// The resulting targets are stored in <targetList> (which is cleared first).
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/// </summary>
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public List<Unit> SelectTargetList(uint num, SelectAggroTarget targetType, uint offset = 0, float dist = 0f, bool playerOnly = false, bool withTank = true, int aura = 0)
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{
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return SelectTargetList(num, targetType, offset, new DefaultTargetSelector(me, dist, playerOnly, withTank, aura));
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}
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/// <summary>
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/// Select the best (up to) <num> targets (in <targetType> order) satisfying <predicate> from the threat list and stores them in <targetList> (which is cleared first).
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/// If <offset> is nonzero, the first <offset> entries in <targetType> order (or MAXTHREAT order, if <targetType> is RANDOM) are skipped.
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/// </summary>
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public List<Unit> SelectTargetList(uint num, SelectAggroTarget targetType, uint offset, ICheck<Unit> selector)
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{
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var targetList = new List<Unit>();
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ThreatManager mgr = GetThreatManager();
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// shortcut: we're gonna ignore the first <offset> elements, and there's at most <offset> elements, so we ignore them all - nothing to do here
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if (mgr.GetThreatListSize() <= offset)
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return targetList;
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if (targetType == SelectAggroTarget.MaxDistance || targetType == SelectAggroTarget.MinDistance)
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{
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foreach (HostileReference refe in mgr.GetThreatList())
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{
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if (!refe.IsOnline())
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continue;
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targetList.Add(refe.GetTarget());
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}
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}
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else
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{
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Unit currentVictim = mgr.GetCurrentVictim();
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if (currentVictim != null)
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targetList.Add(currentVictim);
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foreach (HostileReference refe in mgr.GetThreatList())
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{
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if (!refe.IsOnline())
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continue;
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Unit thisTarget = refe.GetTarget();
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if (thisTarget != currentVictim)
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targetList.Add(thisTarget);
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}
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}
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// shortcut: the list isn't gonna get any larger
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if (targetList.Count <= offset)
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{
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targetList.Clear();
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return targetList;
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}
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// right now, list is unsorted for DISTANCE types - re-sort by MAXDISTANCE
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if (targetType == SelectAggroTarget.MaxDistance || targetType == SelectAggroTarget.MinDistance)
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SortByDistance(targetList, targetType == SelectAggroTarget.MinDistance);
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// now the list is MAX sorted, reverse for MIN types
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if (targetType == SelectAggroTarget.MinThreat)
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targetList.Reverse();
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// ignore the first <offset> elements
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while (offset != 0)
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{
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targetList.RemoveAt(0);
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--offset;
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}
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// then finally filter by predicate
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targetList.RemoveAll(unit => !selector.Invoke(unit));
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if (targetList.Count <= num)
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return targetList;
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if (targetType == SelectAggroTarget.Random)
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targetList = targetList.SelectRandom(num).ToList();
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else
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targetList.Resize(num);
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return targetList;
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}
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public void DoCast(uint spellId)
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{
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Unit target = null;
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AISpellInfoType info = GetAISpellInfo(spellId, me.GetMap().GetDifficultyID());
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switch (info.target)
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{
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default:
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case AITarget.Self:
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target = me;
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break;
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case AITarget.Victim:
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target = me.GetVictim();
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break;
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case AITarget.Enemy:
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{
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var spellInfo = Global.SpellMgr.GetSpellInfo(spellId, me.GetMap().GetDifficultyID());
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if (spellInfo != null)
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{
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bool playerOnly = spellInfo.HasAttribute(SpellAttr3.OnlyTargetPlayers);
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target = SelectTarget(SelectAggroTarget.Random, 0, spellInfo.GetMaxRange(false), playerOnly);
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}
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break;
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}
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case AITarget.Ally:
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case AITarget.Buff:
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target = me;
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break;
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case AITarget.Debuff:
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{
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var spellInfo = Global.SpellMgr.GetSpellInfo(spellId, me.GetMap().GetDifficultyID());
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if (spellInfo != null)
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{
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bool playerOnly = spellInfo.HasAttribute(SpellAttr3.OnlyTargetPlayers);
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float range = spellInfo.GetMaxRange(false);
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DefaultTargetSelector targetSelector = new DefaultTargetSelector(me, range, playerOnly, true, -(int)spellId);
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if (!spellInfo.HasAuraInterruptFlag(SpellAuraInterruptFlags.NotVictim)
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&& targetSelector.Invoke(me.GetVictim()))
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target = me.GetVictim();
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else
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target = SelectTarget(SelectAggroTarget.Random, 0, targetSelector);
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}
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break;
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}
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}
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if (target != null)
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me.CastSpell(target, spellId, false);
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}
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public void DoCast(Unit victim, uint spellId, bool triggered = false)
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{
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if (victim == null || (me.HasUnitState(UnitState.Casting) && !triggered))
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return;
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me.CastSpell(victim, spellId, triggered);
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}
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public void DoCastSelf(uint spellId, bool triggered = false) { DoCast(me, spellId, triggered); }
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public void DoCastVictim(uint spellId, bool triggered = false)
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{
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if (me.GetVictim() == null || (me.HasUnitState(UnitState.Casting) && !triggered))
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return;
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me.CastSpell(me.GetVictim(), spellId, triggered);
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}
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public void DoCastAOE(uint spellId, bool triggered = false)
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{
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if (!triggered && me.HasUnitState(UnitState.Casting))
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return;
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me.CastSpell((Unit)null, spellId, triggered);
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}
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public static void FillAISpellInfo()
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{
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//AISpellInfo = new AISpellInfoType[spellStorage.Keys.Max() + 1];
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Global.SpellMgr.ForEachSpellInfo(spellInfo =>
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{
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AISpellInfoType AIInfo = new AISpellInfoType();
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if (spellInfo.HasAttribute(SpellAttr0.CastableWhileDead))
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AIInfo.condition = AICondition.Die;
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else if (spellInfo.IsPassive() || spellInfo.GetDuration() == -1)
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AIInfo.condition = AICondition.Aggro;
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else
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AIInfo.condition = AICondition.Combat;
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if (AIInfo.cooldown < spellInfo.RecoveryTime)
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AIInfo.cooldown = spellInfo.RecoveryTime;
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if (spellInfo.GetMaxRange(false) == 0)
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{
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if (AIInfo.target < AITarget.Self)
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AIInfo.target = AITarget.Self;
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}
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else
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{
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foreach (SpellEffectInfo effect in spellInfo.GetEffects())
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{
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if (effect == null)
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continue;
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var targetType = effect.TargetA.GetTarget();
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if (targetType == Targets.UnitTargetEnemy || targetType == Targets.DestTargetEnemy)
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{
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if (AIInfo.target < AITarget.Victim)
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AIInfo.target = AITarget.Victim;
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}
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else if (targetType == Targets.UnitDestAreaEnemy)
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{
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if (AIInfo.target < AITarget.Enemy)
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AIInfo.target = AITarget.Enemy;
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}
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if (effect.Effect == SpellEffectName.ApplyAura)
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{
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if (targetType == Targets.UnitTargetEnemy)
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{
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if (AIInfo.target < AITarget.Debuff)
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AIInfo.target = AITarget.Debuff;
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}
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else if (spellInfo.IsPositive())
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{
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if (AIInfo.target < AITarget.Buff)
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AIInfo.target = AITarget.Buff;
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}
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}
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}
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}
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AIInfo.realCooldown = spellInfo.RecoveryTime + spellInfo.StartRecoveryTime;
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AIInfo.maxRange = spellInfo.GetMaxRange(false) * 3 / 4;
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AIInfo.Effects = 0;
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AIInfo.Targets = 0;
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foreach (SpellEffectInfo effect in spellInfo.GetEffects())
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{
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if (effect == null)
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continue;
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// Spell targets self.
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if (effect.TargetA.GetTarget() == Targets.UnitCaster)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.Self - 1);
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// Spell targets a single enemy.
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if (effect.TargetA.GetTarget() == Targets.UnitTargetEnemy ||
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effect.TargetA.GetTarget() == Targets.DestTargetEnemy)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.SingleEnemy - 1);
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// Spell targets AoE at enemy.
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if (effect.TargetA.GetTarget() == Targets.UnitSrcAreaEnemy ||
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effect.TargetA.GetTarget() == Targets.UnitDestAreaEnemy ||
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effect.TargetA.GetTarget() == Targets.SrcCaster ||
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effect.TargetA.GetTarget() == Targets.DestDynobjEnemy)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.AoeEnemy - 1);
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// Spell targets an enemy.
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if (effect.TargetA.GetTarget() == Targets.UnitTargetEnemy ||
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effect.TargetA.GetTarget() == Targets.DestTargetEnemy ||
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effect.TargetA.GetTarget() == Targets.UnitSrcAreaEnemy ||
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effect.TargetA.GetTarget() == Targets.UnitDestAreaEnemy ||
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effect.TargetA.GetTarget() == Targets.SrcCaster ||
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effect.TargetA.GetTarget() == Targets.DestDynobjEnemy)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.AnyEnemy - 1);
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// Spell targets a single friend (or self).
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if (effect.TargetA.GetTarget() == Targets.UnitCaster ||
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effect.TargetA.GetTarget() == Targets.UnitTargetAlly ||
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effect.TargetA.GetTarget() == Targets.UnitTargetParty)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.SingleFriend - 1);
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// Spell targets AoE friends.
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if (effect.TargetA.GetTarget() == Targets.UnitCasterAreaParty ||
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effect.TargetA.GetTarget() == Targets.UnitLastTargetAreaParty ||
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effect.TargetA.GetTarget() == Targets.SrcCaster)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.AoeFriend - 1);
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// Spell targets any friend (or self).
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if (effect.TargetA.GetTarget() == Targets.UnitCaster ||
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effect.TargetA.GetTarget() == Targets.UnitTargetAlly ||
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effect.TargetA.GetTarget() == Targets.UnitTargetParty ||
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effect.TargetA.GetTarget() == Targets.UnitCasterAreaParty ||
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effect.TargetA.GetTarget() == Targets.UnitLastTargetAreaParty ||
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effect.TargetA.GetTarget() == Targets.SrcCaster)
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AIInfo.Targets |= 1 << ((int)SelectTargetType.AnyFriend - 1);
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// Make sure that this spell includes a damage effect.
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if (effect.Effect == SpellEffectName.SchoolDamage ||
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effect.Effect == SpellEffectName.Instakill ||
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effect.Effect == SpellEffectName.EnvironmentalDamage ||
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effect.Effect == SpellEffectName.HealthLeech)
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AIInfo.Effects |= 1 << ((int)SelectEffect.Damage - 1);
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// Make sure that this spell includes a healing effect (or an apply aura with a periodic heal).
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if (effect.Effect == SpellEffectName.Heal ||
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effect.Effect == SpellEffectName.HealMaxHealth ||
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effect.Effect == SpellEffectName.HealMechanical ||
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(effect.Effect == SpellEffectName.ApplyAura && effect.ApplyAuraName == AuraType.PeriodicHeal))
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AIInfo.Effects |= 1 << ((int)SelectEffect.Healing - 1);
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// Make sure that this spell applies an aura.
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if (effect.Effect == SpellEffectName.ApplyAura)
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AIInfo.Effects |= 1 << ((int)SelectEffect.Aura - 1);
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}
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AISpellInfo[(spellInfo.Id, spellInfo.Difficulty)] = AIInfo;
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});
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}
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public virtual bool CanAIAttack(Unit victim) { return true; }
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public virtual void UpdateAI(uint diff) { }
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public virtual void InitializeAI()
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{
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if (!me.IsDead())
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Reset();
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}
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public virtual void Reset() { }
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public virtual void OnCharmed(bool apply) { }
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public virtual bool ShouldSparWith(Unit target) { return false; }
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public virtual void DoAction(int action) { }
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public virtual uint GetData(uint id = 0) { return 0; }
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public virtual void SetData(uint id, uint value) { }
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public virtual void SetGUID(ObjectGuid guid, int id = 0) { }
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public virtual ObjectGuid GetGUID(int id = 0) { return ObjectGuid.Empty; }
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public virtual void DamageDealt(Unit victim, ref uint damage, DamageEffectType damageType) { }
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public virtual void DamageTaken(Unit attacker, ref uint damage) { }
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public virtual void HealReceived(Unit by, uint addhealth) { }
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public virtual void HealDone(Unit to, uint addhealth) { }
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public virtual void SpellInterrupted(uint spellId, uint unTimeMs) {}
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/// <summary>
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/// Called when a player opens a gossip dialog with the creature.
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/// </summary>
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public virtual bool GossipHello(Player player) { return false; }
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/// <summary>
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/// Called when a player selects a gossip item in the creature's gossip menu.
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/// </summary>
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public virtual bool GossipSelect(Player player, uint menuId, uint gossipListId) { return false; }
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/// <summary>
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/// Called when a player selects a gossip with a code in the creature's gossip menu.
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/// </summary>
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public virtual bool GossipSelectCode(Player player, uint menuId, uint gossipListId, string code) { return false; }
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/// <summary>
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/// Called when a player accepts a quest from the creature.
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/// </summary>
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public virtual void QuestAccept(Player player, Quest quest) { }
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/// <summary>
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/// Called when a player completes a quest and is rewarded, opt is the selected item's index or 0
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/// </summary>
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public virtual void QuestReward(Player player, Quest quest, uint opt)
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|
{
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QuestReward(player, quest, LootItemType.Item, opt);
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}
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public virtual void QuestReward(Player player, Quest quest, LootItemType type, uint opt) { }
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|
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/// <summary>
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/// Called when a game event starts or ends
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/// </summary>
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|
public virtual void OnGameEvent(bool start, ushort eventId) { }
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|
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// Called when the dialog status between a player and the creature is requested.
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public virtual QuestGiverStatus GetDialogStatus(Player player) { return QuestGiverStatus.ScriptedDefault; }
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public virtual void WaypointPathStarted(uint nodeId, uint pathId) { }
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public virtual void WaypointStarted(uint nodeId, uint pathId) { }
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public virtual void WaypointReached(uint nodeId, uint pathId) { }
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public virtual void WaypointPathEnded(uint nodeId, uint pathId) { }
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|
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public AISpellInfoType GetAISpellInfo(uint spellId, Difficulty difficulty)
|
|
{
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return AISpellInfo.LookupByKey((spellId, difficulty));
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}
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|
|
public static Dictionary<(uint id, Difficulty difficulty), AISpellInfoType> AISpellInfo = new Dictionary<(uint id, Difficulty difficulty), AISpellInfoType>();
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protected Unit me { get; private set; }
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}
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|
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public enum SelectAggroTarget
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|
{
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Random = 0, // just pick a random target
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MaxThreat, // prefer targets higher in the threat list
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MinThreat, // prefer targets lower in the threat list
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MaxDistance, // prefer targets further from us
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MinDistance // prefer targets closer to us
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}
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// default predicate function to select target based on distance, player and/or aura criteria
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public class DefaultTargetSelector : ICheck<Unit>
|
|
{
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|
Unit me;
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|
float m_dist;
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|
bool m_playerOnly;
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|
Unit except;
|
|
int m_aura;
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|
|
|
/// <param name="unit">the reference unit</param>
|
|
/// <param name="dist">if 0: ignored, if > 0: maximum distance to the reference unit, if < 0: minimum distance to the reference unit</param>
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|
/// <param name="playerOnly">self explaining</param>
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|
/// <param name="withTank">allow current tank to be selected</param>
|
|
/// <param name="aura">if 0: ignored, if > 0: the target shall have the aura, if < 0, the target shall NOT have the aura</param>
|
|
public DefaultTargetSelector(Unit unit, float dist, bool playerOnly, bool withTank, int aura)
|
|
{
|
|
me = unit;
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|
m_dist = dist;
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|
m_playerOnly = playerOnly;
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|
except = !withTank ? me.GetThreatManager().GetCurrentVictim() : null;
|
|
m_aura = aura;
|
|
}
|
|
|
|
public bool Invoke(Unit target)
|
|
{
|
|
if (me == null)
|
|
return false;
|
|
|
|
if (target == null)
|
|
return false;
|
|
|
|
if (except != null && target == except)
|
|
return false;
|
|
|
|
if (m_playerOnly && !target.IsTypeId(TypeId.Player))
|
|
return false;
|
|
|
|
if (m_dist > 0.0f && !me.IsWithinCombatRange(target, m_dist))
|
|
return false;
|
|
|
|
if (m_dist < 0.0f && me.IsWithinCombatRange(target, -m_dist))
|
|
return false;
|
|
|
|
if (m_aura != 0)
|
|
{
|
|
if (m_aura > 0)
|
|
{
|
|
if (!target.HasAura((uint)m_aura))
|
|
return false;
|
|
}
|
|
else
|
|
{
|
|
if (target.HasAura((uint)-m_aura))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// Target selector for spell casts checking range, auras and attributes
|
|
// todo Add more checks from Spell.CheckCast
|
|
public class SpellTargetSelector : ICheck<Unit>
|
|
{
|
|
public SpellTargetSelector(Unit caster, uint spellId)
|
|
{
|
|
_caster = caster;
|
|
_spellInfo = Global.SpellMgr.GetSpellInfo(spellId, caster.GetMap().GetDifficultyID());
|
|
|
|
Cypher.Assert(_spellInfo != null);
|
|
}
|
|
|
|
public bool Invoke(Unit target)
|
|
{
|
|
if (target == null)
|
|
return false;
|
|
|
|
if (_spellInfo.CheckTarget(_caster, target) != SpellCastResult.SpellCastOk)
|
|
return false;
|
|
|
|
// copypasta from Spell.CheckRange
|
|
float minRange = 0.0f;
|
|
float maxRange = 0.0f;
|
|
float rangeMod = 0.0f;
|
|
if (_spellInfo.RangeEntry != null)
|
|
{
|
|
if (_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Melee))
|
|
{
|
|
rangeMod = _caster.GetCombatReach() + 4.0f / 3.0f;
|
|
rangeMod += target.GetCombatReach();
|
|
|
|
rangeMod = Math.Max(rangeMod, SharedConst.NominalMeleeRange);
|
|
}
|
|
else
|
|
{
|
|
float meleeRange = 0.0f;
|
|
if (_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Ranged))
|
|
{
|
|
meleeRange = _caster.GetCombatReach() + 4.0f / 3.0f;
|
|
meleeRange += target.GetCombatReach();
|
|
|
|
meleeRange = Math.Max(meleeRange, SharedConst.NominalMeleeRange);
|
|
}
|
|
|
|
minRange = _caster.GetSpellMinRangeForTarget(target, _spellInfo) + meleeRange;
|
|
maxRange = _caster.GetSpellMaxRangeForTarget(target, _spellInfo);
|
|
|
|
rangeMod = _caster.GetCombatReach();
|
|
rangeMod += target.GetCombatReach();
|
|
|
|
if (minRange > 0.0f && !_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Ranged))
|
|
minRange += rangeMod;
|
|
}
|
|
|
|
if (_caster.IsMoving() && target.IsMoving() && !_caster.IsWalking() && !target.IsWalking() &&
|
|
(_spellInfo.RangeEntry.Flags.HasAnyFlag(SpellRangeFlag.Melee) || target.IsTypeId(TypeId.Player)))
|
|
rangeMod += 8.0f / 3.0f;
|
|
}
|
|
|
|
maxRange += rangeMod;
|
|
|
|
minRange *= minRange;
|
|
maxRange *= maxRange;
|
|
|
|
if (target != _caster)
|
|
{
|
|
if (_caster.GetExactDistSq(target) > maxRange)
|
|
return false;
|
|
|
|
if (minRange > 0.0f && _caster.GetExactDistSq(target) < minRange)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
Unit _caster;
|
|
SpellInfo _spellInfo;
|
|
}
|
|
|
|
// Very simple target selector, will just skip main target
|
|
// NOTE: When passing to UnitAI.SelectTarget remember to use 0 as position for random selection
|
|
// because tank will not be in the temporary list
|
|
public class NonTankTargetSelector : ICheck<Unit>
|
|
{
|
|
public NonTankTargetSelector(Unit source, bool playerOnly = true)
|
|
{
|
|
_source = source;
|
|
_playerOnly = playerOnly;
|
|
}
|
|
|
|
public bool Invoke(Unit target)
|
|
{
|
|
if (target == null)
|
|
return false;
|
|
|
|
if (_playerOnly && !target.IsTypeId(TypeId.Player))
|
|
return false;
|
|
|
|
Unit currentVictim = _source.GetThreatManager().GetCurrentVictim();
|
|
if (currentVictim != null)
|
|
return target != currentVictim;
|
|
|
|
return target != _source.GetVictim();
|
|
}
|
|
|
|
Unit _source;
|
|
bool _playerOnly;
|
|
}
|
|
|
|
// Simple selector for units using mana
|
|
class PowerUsersSelector : ICheck<Unit>
|
|
{
|
|
public PowerUsersSelector(Unit unit, PowerType power, float dist, bool playerOnly)
|
|
{
|
|
_me = unit;
|
|
_power = power;
|
|
_dist = dist;
|
|
_playerOnly = playerOnly;
|
|
}
|
|
|
|
public bool Invoke(Unit target)
|
|
{
|
|
if (_me == null || target == null)
|
|
return false;
|
|
|
|
if (target.GetPowerType() != _power)
|
|
return false;
|
|
|
|
if (_playerOnly && target.GetTypeId() != TypeId.Player)
|
|
return false;
|
|
|
|
if (_dist > 0.0f && !_me.IsWithinCombatRange(target, _dist))
|
|
return false;
|
|
|
|
if (_dist < 0.0f && _me.IsWithinCombatRange(target, -_dist))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
Unit _me;
|
|
PowerType _power;
|
|
float _dist;
|
|
bool _playerOnly;
|
|
}
|
|
|
|
class FarthestTargetSelector : ICheck<Unit>
|
|
{
|
|
public FarthestTargetSelector(Unit unit, float dist, bool playerOnly, bool inLos)
|
|
{
|
|
_me = unit;
|
|
_dist = dist;
|
|
_playerOnly = playerOnly;
|
|
_inLos = inLos;
|
|
}
|
|
|
|
public bool Invoke(Unit target)
|
|
{
|
|
if (_me == null || target == null)
|
|
return false;
|
|
|
|
if (_playerOnly && target.GetTypeId() != TypeId.Player)
|
|
return false;
|
|
|
|
if (_dist > 0.0f && !_me.IsWithinCombatRange(target, _dist))
|
|
return false;
|
|
|
|
if (_inLos && !_me.IsWithinLOSInMap(target))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
Unit _me;
|
|
float _dist;
|
|
bool _playerOnly;
|
|
bool _inLos;
|
|
}
|
|
}
|