Server/src/engine/ai/MobileFSM.java

// • ▌ ▄ ·.  ▄▄▄·  ▄▄ • ▪   ▄▄· ▄▄▄▄·  ▄▄▄·  ▐▄▄▄  ▄▄▄ .
// ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
// ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
// ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
// ▀▀  █▪▀▀▀ ▀  ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀  ▀  ▀ ▀▀  █▪ ▀▀▀
//      Magicbane Emulator Project © 2013 - 2022
//                www.magicbane.com


package engine.ai;

import engine.Enum.DispatchChannel;
import engine.ai.utilities.CombatUtilities;
import engine.ai.utilities.MovementUtilities;
import engine.gameManager.BuildingManager;
import engine.gameManager.CombatManager;
import engine.gameManager.MovementManager;
import engine.gameManager.PowersManager;
import engine.math.Vector3fImmutable;
import engine.net.DispatchMessage;
import engine.net.client.msg.PerformActionMsg;
import engine.net.client.msg.PowerProjectileMsg;
import engine.net.client.msg.UpdateStateMsg;
import engine.objects.*;
import engine.powers.ActionsBase;
import engine.powers.PowersBase;
import engine.server.MBServerStatics;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map.Entry;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ThreadLocalRandom;
import static engine.math.FastMath.sqr;
public class MobileFSM {
    public enum MobBehaviourType {
        //Power
        Power(null, false, true, true, true, false),
        PowerHelpee(Power, false, true, true, false, true),
        PowerHelpeeWimpy(Power, true, false, true, false, false),
        PowerGrouperWimpy(Power, true, false, true, false, false),
        PowerAggro(Power, false, true, true, false, true),
        PowerAggroHelpe(Power, false, true, true, false, true),
        //Aggro
        Aggro(null, false, true, true, true, false),
        AggroHelpee(Aggro, false, true, true, false, true),
        AggroHelpeeWimpy(Aggro, true, false, true, false, false),
        AggroGrouperWimpy(Aggro, true, false, true, false, false),
        //Spell
        Spell(null, false, true, true, true, false),
        SpellHelpee(Spell, false, true, true, false, true),
        SpellHelpeeWimpy(Spell, true, false, true, false, false),
        SpellGrouperWimpy(Spell, true, false, true, false, false),
        SpellAggro(Spell, false, true, true, false, true),
        SpellAggroHelpee(Spell, false, true, true, false, true),
        SpellAggroHelpeeWimpy(Spell, true, false, true, false, false),
        SpellAggroHelpeeEpic(Spell, false, true, true, false, true),
        SpellAggroGrouperWimpy(Spell, true, false, true, false, false),
        //Independent Types
        SimpleStandingGuard(null, false, false, false, false, false),
        Pet1(null, false, false, false, false, false),
        Simple(null, false, false, true, false, false),
        Helpee(null, false, true, true, false, true),
        HelpeeWimpy(null, true, false, true, false, false);

        private static HashMap<Integer, MobBehaviourType> _behaviourTypes = new HashMap<>();
        public MobBehaviourType BehaviourHelperType;
        public boolean isWimpy;
        public boolean isAgressive;
        public boolean canRoam;
        public boolean callsForHelp;
        public boolean respondsToCallForHelp;

        MobBehaviourType(MobBehaviourType helpeebehaviourType, boolean wimpy, boolean agressive, boolean canroam, boolean callsforhelp, boolean respondstocallforhelp) {
            this.BehaviourHelperType = helpeebehaviourType;
            this.isWimpy = wimpy;
            this.isAgressive = agressive;
            this.canRoam = canroam;
            this.callsForHelp = callsforhelp;
            this.respondsToCallForHelp = respondstocallforhelp;
        }
    }
    private static void mobAttack(Mob aiAgent) {

        AbstractGameObject target = aiAgent.getCombatTarget();
        if (target == null) {
            return;
        }
        switch (target.getObjectType()) {
            case PlayerCharacter:
                PlayerCharacter player = (PlayerCharacter) target;
                if (!player.isActive()) {
                    aiAgent.setCombatTarget(null);
                    CheckMobMovement(aiAgent);
                    return;
                }
                if (aiAgent.isNecroPet() && player.inSafeZone()) {
                    aiAgent.setCombatTarget(null);
                    return;
                }
                if (canCast(aiAgent) == true) {
                    if (MobCast(aiAgent) == false) {
                        handlePlayerAttackForMob(aiAgent, player);
                    }
                } else {
                    handlePlayerAttackForMob(aiAgent, player);
                }
                break;
            case Building:
                Building building = (Building) target;
                petHandleBuildingAttack(aiAgent, building);
                break;
            case Mob:
                Mob mob = (Mob) target;
                handleMobAttackForMob(aiAgent, mob);
        }
    }
    private static void petHandleBuildingAttack(Mob aiAgent, Building building) {

        int buildingHitBox = (int) CombatManager.calcHitBox(building);

        if (building.getRank() == -1) {
            aiAgent.setCombatTarget(null);
            return;
        }

        if (!building.isVulnerable()) {
            aiAgent.setCombatTarget(null);
            return;
        }

        if (BuildingManager.getBuildingFromCache(building.getObjectUUID()) == null) {
            aiAgent.setCombatTarget(null);
            return;
        }

        if (building.getParentZone() != null && building.getParentZone().isPlayerCity()) {

            for (Mob mob : building.getParentZone().zoneMobSet) {

                if (!mob.isPlayerGuard())
                    continue;

                if (mob.getCombatTarget() != null)
                    continue;

                if (mob.getGuild() != null && building.getGuild() != null)
                    if (!Guild.sameGuild(mob.getGuild().getNation(), building.getGuild().getNation()))
                        continue;

                mob.setCombatTarget(aiAgent);
            }
        }

        if (CombatUtilities.inRangeToAttack(aiAgent, building)) {
            //not time to attack yet.

            if (!CombatUtilities.RunAIRandom())
                return;

            if (System.currentTimeMillis() < aiAgent.getLastAttackTime())
                return;

            if (aiAgent.getRange() >= 30 && aiAgent.isMoving())
                return;

            //reset attack animation
            if (aiAgent.isSiege())
                MovementManager.sendRWSSMsg(aiAgent);

            //			Fire siege balls
            //			 TODO: Fix animations not following stone

            //no weapons, defualt mob attack speed 3 seconds.
            ItemBase mainHand = aiAgent.getWeaponItemBase(true);
            ItemBase offHand = aiAgent.getWeaponItemBase(false);

            if (mainHand == null && offHand == null) {

                CombatUtilities.combatCycle(aiAgent, building, true, null);
                int delay = 3000;

                if (aiAgent.isSiege())
                    delay = 15000;

                aiAgent.setLastAttackTime(System.currentTimeMillis() + delay);
            } else
                //TODO set offhand attack time.
                if (aiAgent.getWeaponItemBase(true) != null) {

                    int attackDelay = 3000;

                    if (aiAgent.isSiege())
                        attackDelay = 15000;

                    CombatUtilities.combatCycle(aiAgent, building, true, aiAgent.getWeaponItemBase(true));
                    aiAgent.setLastAttackTime(System.currentTimeMillis() + attackDelay);

                } else if (aiAgent.getWeaponItemBase(false) != null) {

                    int attackDelay = 3000;

                    if (aiAgent.isSiege())
                        attackDelay = 15000;

                    CombatUtilities.combatCycle(aiAgent, building, false, aiAgent.getWeaponItemBase(false));
                    aiAgent.setLastAttackTime(System.currentTimeMillis() + attackDelay);
                }

            if (aiAgent.isSiege()) {
                PowerProjectileMsg ppm = new PowerProjectileMsg(aiAgent, building);
                ppm.setRange(50);
                DispatchMessage.dispatchMsgToInterestArea(aiAgent, ppm, DispatchChannel.SECONDARY, MBServerStatics.CHARACTER_LOAD_RANGE, false, false);
            }
            return;
        }

        //Outside of attack Range, Move to players predicted loc.

        if (!aiAgent.isMoving())
            if (MovementUtilities.canMove(aiAgent))
                MovementUtilities.moveToLocation(aiAgent, building.getLoc(), aiAgent.getRange() + buildingHitBox);
    }
    private static void handlePlayerAttackForMob(Mob aiAgent, PlayerCharacter player) {

        if (aiAgent.getMobBase().getSeeInvis() < player.getHidden()) {
            aiAgent.setCombatTarget(null);
            return;
        }

        if (!player.isAlive()) {
            aiAgent.setCombatTarget(null);
            return;
        }

        if (aiAgent.BehaviourType.callsForHelp) {
            MobCallForHelp(aiAgent);
        }
        if (!MovementUtilities.inRangeDropAggro(aiAgent, player)) {
            aiAgent.setAggroTargetID(0);
            aiAgent.setCombatTarget(null);
            MovementUtilities.moveToLocation(aiAgent, aiAgent.getTrueBindLoc(), 0);
            return;
        }
        if (CombatUtilities.inRange2D(aiAgent, player, aiAgent.getRange())) {

            //no weapons, defualt mob attack speed 3 seconds.

            if (System.currentTimeMillis() < aiAgent.getLastAttackTime())
                return;

            //if (!CombatUtilities.RunAIRandom())
            //    return;

            // ranged mobs cant attack while running. skip until they finally stop.
            //if (aiAgent.getRange() >= 30 && aiAgent.isMoving())
            if (aiAgent.isMoving())
                return;

            // add timer for last attack.
            //	player.setTimeStamp("LastCombatPlayer", System.currentTimeMillis());
            ItemBase mainHand = aiAgent.getWeaponItemBase(true);
            ItemBase offHand = aiAgent.getWeaponItemBase(false);

            if (mainHand == null && offHand == null) {

                CombatUtilities.combatCycle(aiAgent, player, true, null);
                int delay = 3000;

                if (aiAgent.isSiege())
                    delay = 11000;

                aiAgent.setLastAttackTime(System.currentTimeMillis() + delay);

            } else
                //TODO set offhand attack time.
                if (aiAgent.getWeaponItemBase(true) != null) {

                    int delay = 3000;

                    if (aiAgent.isSiege())
                        delay = 11000;

                    CombatUtilities.combatCycle(aiAgent, player, true, aiAgent.getWeaponItemBase(true));
                    aiAgent.setLastAttackTime(System.currentTimeMillis() + delay);
                } else if (aiAgent.getWeaponItemBase(false) != null) {

                    int attackDelay = 3000;

                    if (aiAgent.isSiege())
                        attackDelay = 11000;
                    if (aiAgent.BehaviourType.callsForHelp) {
                        MobCallForHelp(aiAgent);
                    }
                    CombatUtilities.combatCycle(aiAgent, player, false, aiAgent.getWeaponItemBase(false));
                    aiAgent.setLastAttackTime(System.currentTimeMillis() + attackDelay);
                }
            return;
        }

        if (!MovementUtilities.updateMovementToCharacter(aiAgent, player))
            return;

        if (!MovementUtilities.canMove(aiAgent))
            return;

        //this stops mobs from attempting to move while they are underneath a player.
        if (CombatUtilities.inRangeToAttack2D(aiAgent, player))
            return;

    }
    private static void handleMobAttackForMob(Mob aiAgent, Mob mob) {


        if (!mob.isAlive()) {
            aiAgent.setCombatTarget(null);
            return;
        }

        if (CombatUtilities.inRangeToAttack(aiAgent, mob)) {
            //not time to attack yet.
            if (System.currentTimeMillis() < aiAgent.getLastAttackTime()) {
                return;
            }

            if (!CombatUtilities.RunAIRandom())
                return;

            if (aiAgent.getRange() >= 30 && aiAgent.isMoving())
                return;
            //no weapons, defualt mob attack speed 3 seconds.
            ItemBase mainHand = aiAgent.getWeaponItemBase(true);
            ItemBase offHand = aiAgent.getWeaponItemBase(false);

            if (mainHand == null && offHand == null) {

                CombatUtilities.combatCycle(aiAgent, mob, true, null);
                int delay = 3000;

                if (aiAgent.isSiege())
                    delay = 11000;

                aiAgent.setLastAttackTime(System.currentTimeMillis() + delay);
            } else
                //TODO set offhand attack time.
                if (aiAgent.getWeaponItemBase(true) != null) {

                    int attackDelay = 3000;

                    if (aiAgent.isSiege())
                        attackDelay = 11000;

                    CombatUtilities.combatCycle(aiAgent, mob, true, aiAgent.getWeaponItemBase(true));
                    aiAgent.setLastAttackTime(System.currentTimeMillis() + attackDelay);

                } else if (aiAgent.getWeaponItemBase(false) != null) {

                    int attackDelay = 3000;

                    if (aiAgent.isSiege())
                        attackDelay = 11000;

                    CombatUtilities.combatCycle(aiAgent, mob, false, aiAgent.getWeaponItemBase(false));
                    aiAgent.setLastAttackTime(System.currentTimeMillis() + attackDelay);
                }
            return;
        }

        //use this so mobs dont continue to try to move if they are underneath a flying target. only use 2D range check.
        if (CombatUtilities.inRangeToAttack2D(aiAgent, mob))
            return;

        if (!MovementUtilities.updateMovementToCharacter(aiAgent, mob))
            return;
    }
    private static void guardPatrol(Mob aiAgent) {
        if (aiAgent.isCombat() && aiAgent.getCombatTarget() == null) {
            aiAgent.setCombat(false);
            UpdateStateMsg rwss = new UpdateStateMsg();
            rwss.setPlayer(aiAgent);
            DispatchMessage.sendToAllInRange(aiAgent, rwss);
        }

        if (aiAgent.npcOwner == null) {

            if (!aiAgent.isWalk() || (aiAgent.isCombat() && aiAgent.getCombatTarget() == null)) {
                aiAgent.setWalkMode(true);
                aiAgent.setCombat(false);
                UpdateStateMsg rwss = new UpdateStateMsg();
                rwss.setPlayer(aiAgent);
                DispatchMessage.sendToAllInRange(aiAgent, rwss);
            }
            Building barrack = aiAgent.building;

            if (barrack == null) {
                return;
            }

            int patrolRandom = ThreadLocalRandom.current().nextInt(1000);

            if (patrolRandom <= 10) {
                int buildingHitBox = (int) CombatManager.calcHitBox(barrack);
                if (MovementUtilities.canMove(aiAgent)) {
                    MovementUtilities.aiMove(aiAgent, MovementUtilities.randomPatrolLocation(aiAgent, aiAgent.getBindLoc(), buildingHitBox * 2), true);
                }
            }
            return;

        }

        if (!aiAgent.isWalk() || (aiAgent.isCombat() && aiAgent.getCombatTarget() == null)) {
            aiAgent.setWalkMode(true);
            aiAgent.setCombat(false);
            UpdateStateMsg rwss = new UpdateStateMsg();
            rwss.setPlayer(aiAgent);
            DispatchMessage.sendToAllInRange(aiAgent, rwss);

        }

        Building barrack = ((Mob) aiAgent.npcOwner).building;

        if (barrack == null) {
            return;
        }

        if (barrack.getPatrolPoints() == null) {
            return;
        }

        if (barrack.getPatrolPoints().isEmpty()) {
            return;
        }

        if (aiAgent.isMoving()) {
            return;
        }

        int patrolRandom = ThreadLocalRandom.current().nextInt(1000);

        if (patrolRandom <= 10) {
            if (aiAgent.getPatrolPointIndex() < barrack.getPatrolPoints().size()) {
                Vector3fImmutable patrolLoc = barrack.getPatrolPoints().get(aiAgent.getPatrolPointIndex());
                aiAgent.setPatrolPointIndex(aiAgent.getPatrolPointIndex() + 1);
                if (aiAgent.getPatrolPointIndex() == barrack.getPatrolPoints().size())
                    aiAgent.setPatrolPointIndex(0);

                if (patrolLoc != null) {
                    if (MovementUtilities.canMove(aiAgent)) {
                        MovementUtilities.aiMove(aiAgent, patrolLoc, true);
                    }
                }
            }
        }
    }
    private static void respawn(Mob aiAgent) {

        if (!aiAgent.canRespawn())
            return;

        long spawnTime = aiAgent.getSpawnTime();

        if (aiAgent.isPlayerGuard() && aiAgent.npcOwner != null && !aiAgent.npcOwner.isAlive())
            return;

        if (System.currentTimeMillis() > aiAgent.deathTime + spawnTime) {
            aiAgent.respawn();
            aiAgent.setCombatTarget(null);
        }
    }
    public static boolean canCast(Mob mob) {

        // Performs validation to determine if a
        // mobile in the proper state to cast.

        if (mob == null)
            return false;

        if (mob.mobPowers.isEmpty())
            return false;

        if (mob.nextCastTime == 0)
            mob.nextCastTime = System.currentTimeMillis();

        return mob.nextCastTime <= System.currentTimeMillis();
    }
    public static boolean MobCast(Mob mob) {

        // Method picks a random spell from a mobile's list of powers
        // and casts it on the current target (or itself).  Validation
        // (including empty lists) is done previously within canCast();

        ArrayList<Integer> powerTokens;
        ArrayList<Integer> purgeTokens;
        PlayerCharacter target = (PlayerCharacter) mob.getCombatTarget();

        if (mob.BehaviourType.callsForHelp)
            MobCallForHelp(mob);

        // Generate a list of tokens from the mob powers for this mobile.

        powerTokens = new ArrayList<>(mob.mobPowers.keySet());
        purgeTokens = new ArrayList<>();

        // If player has this effect on them currently then remove
        // this token from our list.

        for (int powerToken : powerTokens) {

            PowersBase powerBase = PowersManager.getPowerByToken(powerToken);

            for (ActionsBase actionBase : powerBase.getActions()) {

                String stackType = actionBase.stackType;

                if (target.getEffects() != null && target.getEffects().containsKey(stackType))
                    purgeTokens.add(powerToken);
            }
        }

        powerTokens.removeAll(purgeTokens);

        // Sanity check

        if (powerTokens.isEmpty())
            return false;

        // Pick random spell from our list of powers

        int powerToken = powerTokens.get(ThreadLocalRandom.current().nextInt(powerTokens.size()));
        int powerRank = mob.mobPowers.get(powerToken);
        PowersBase mobPower = PowersManager.getPowerByToken(powerToken);

        // Cast the spell

        if (CombatUtilities.inRange2D(mob, mob.getCombatTarget(), mobPower.getRange())) {

            PowersManager.useMobPower(mob, (AbstractCharacter) mob.getCombatTarget(), mobPower, powerRank);
            PerformActionMsg msg;

            if (mobPower.isHarmful() == false || mobPower.targetSelf == true)
                msg = PowersManager.createPowerMsg(mobPower, powerRank, mob, mob);
            else
                msg = PowersManager.createPowerMsg(mobPower, powerRank, mob, target);

            msg.setUnknown04(2);
            PowersManager.finishUseMobPower(msg, mob, 0, 0);

            // Default minimum seconds between cast = 10

            long coolDown = mobPower.getCooldown();

            if (coolDown < 10000)
                mob.nextCastTime = System.currentTimeMillis() + 10000 + coolDown;
            else
                mob.nextCastTime = System.currentTimeMillis() + coolDown;

            return true;
        }

        return false;
    }
    public static void MobCallForHelp(Mob mob) {
        if (mob.nextCallForHelp == 0) {
            mob.nextCallForHelp = System.currentTimeMillis();
        }
        if (mob.nextCallForHelp < System.currentTimeMillis()) {
            return;
        }
        Zone mobCamp = mob.getParentZone();
        for (Mob helper : mobCamp.zoneMobSet) {
            if (helper.BehaviourType.respondsToCallForHelp && helper.BehaviourType.BehaviourHelperType.equals(mob.BehaviourType)) {
                helper.setCombatTarget(mob.getCombatTarget());
            }
        }
        //wait 60 seconds to call for help again
        mob.nextCallForHelp = System.currentTimeMillis() + 60000;
    }
    public static void run(Mob mob) {
        if (mob == null) {
            return;
        }
        if (mob.isAlive() == false) {
            //no need to continue if mob is dead, check for respawn and move on
            CheckForRespawn(mob);
            return;
        }
        //check to see if mob has wandered too far from his bind loc
        CheckToSendMobHome(mob);
        //check to see if players have mob loaded
        if (mob.playerAgroMap.isEmpty()) {
            //no players loaded, no need to proceed
            return;
        }
        //check for players that can be aggroed if mob is agressive and has no target
        if (mob.BehaviourType.isAgressive && mob.getCombatTarget() == null) {
            CheckForAggro(mob);
        }
        //check if mob can move for patrol or moving to target
        if (mob.BehaviourType.canRoam) {
            CheckMobMovement(mob);
        }
        //check if mob can attack if it isn't wimpy
        if (!mob.BehaviourType.isWimpy && !mob.isMoving()) {
            CheckForAttack(mob);
        }
    }
    private static void CheckForAggro(Mob aiAgent) {
        //looks for and sets mobs combatTarget
        if (!aiAgent.isAlive()) {
            return;
        }
        ConcurrentHashMap<Integer, Boolean> loadedPlayers = aiAgent.playerAgroMap;
        for (Entry playerEntry : loadedPlayers.entrySet()) {
            int playerID = (int) playerEntry.getKey();
            PlayerCharacter loadedPlayer = PlayerCharacter.getFromCache(playerID);
            //Player is null, let's remove them from the list.
            if (loadedPlayer == null) {
                loadedPlayers.remove(playerID);
                continue;
            }
            //Player is Dead, Mob no longer needs to attempt to aggro. Remove them from aggro map.
            if (!loadedPlayer.isAlive()) {
                loadedPlayers.remove(playerID);
                continue;
            }
            //Can't see target, skip aggro.
            if (!aiAgent.canSee(loadedPlayer)) {
                continue;
            }
            // No aggro for this race type
                if(aiAgent.notEnemy.contains(loadedPlayer.getRace().getRaceType()))
                continue;
            if (MovementUtilities.inRangeToAggro(aiAgent, loadedPlayer)) {
                aiAgent.setAggroTargetID(playerID);
                return;
            }
        }
    }
    private static void CheckMobMovement(Mob mob) {
        if (mob.getCombatTarget() == null) {
            //patrol
            int patrolRandom = ThreadLocalRandom.current().nextInt(1000);
            if (patrolRandom <= MBServerStatics.AI_PATROL_DIVISOR) {
                if (MovementUtilities.canMove(mob) && !mob.isMoving()) {
                    if (mob.isPlayerGuard()) {
                        guardPatrol(mob);
                        return;
                    }
                    float patrolRadius = mob.getSpawnRadius();

                    if (patrolRadius > 256)
                        patrolRadius = 256;

                    if (patrolRadius < 60)
                        patrolRadius = 60;

                    MovementUtilities.aiMove(mob, Vector3fImmutable.getRandomPointInCircle(mob.getBindLoc(), patrolRadius), true);
                } else {
                    //chase target
                    mob.updateMovementState();
                    mob.updateLocation();
                    if (CombatUtilities.inRange2D(mob, mob.getCombatTarget(), mob.getRange()) == false) {
                        if (mob.getRange() > 15) {
                            mob.destination = mob.getCombatTarget().getLoc();
                            MovementUtilities.moveToLocation(mob, mob.destination, 0);
                        } else {
                            mob.destination = MovementUtilities.GetDestinationToCharacter(mob, (AbstractCharacter) mob.getCombatTarget());
                            MovementUtilities.moveToLocation(mob, mob.destination, mob.getRange());
                        }
                    }
                }
            }
        }
    }
    private static void CheckForRespawn(Mob aiAgent) {
        //handles checking for respawn of dead mobs even when no players have mob loaded
        //Despawn Timer with Loot currently in inventory.
        if (aiAgent.getCharItemManager().getInventoryCount() > 0) {
            if (System.currentTimeMillis() > aiAgent.deathTime + MBServerStatics.DESPAWN_TIMER_WITH_LOOT) {
                aiAgent.despawn();
                //update time of death after mob despawns so respawn time happens after mob despawns.
                if(aiAgent.deathTime != 0) {
                    aiAgent.setDeathTime(System.currentTimeMillis());
                }
                respawn(aiAgent);
            }

            //No items in inventory.
        } else {
            //Mob's Loot has been looted.
            if (aiAgent.isHasLoot()) {
                if (System.currentTimeMillis() > aiAgent.deathTime + MBServerStatics.DESPAWN_TIMER_ONCE_LOOTED) {
                    aiAgent.despawn();
                    //update time of death after mob despawns so respawn time happens after mob despawns.
                    if(aiAgent.deathTime != 0) {
                        aiAgent.setDeathTime(System.currentTimeMillis());
                    }
                    respawn(aiAgent);
                }
                //Mob never had Loot.
            } else {
                if (System.currentTimeMillis() > aiAgent.deathTime + MBServerStatics.DESPAWN_TIMER) {
                    aiAgent.despawn();
                    //update time of death after mob despawns so respawn time happens after mob despawns.
                    if(aiAgent.deathTime != 0) {
                        aiAgent.setDeathTime(System.currentTimeMillis());
                    }
                    respawn(aiAgent);
                }
            }
        }

    }
    public static void CheckForAttack(Mob mob) {
        //checks if mob can attack based on attack timer and range
        if (mob.isAlive())
            mob.updateLocation();
        if (!mob.isCombat()) {
            mob.setCombat(true);
            UpdateStateMsg rwss = new UpdateStateMsg();
            rwss.setPlayer(mob);
            DispatchMessage.sendToAllInRange(mob, rwss);
        }
        mobAttack(mob);
    }
    private static void CheckToSendMobHome(Mob mob) {
        if (mob.getLoc().distanceSquared2D(mob.getBindLoc()) > sqr(2000)) {
            PowersBase recall = PowersManager.getPowerByToken(-1994153779);
            PowersManager.useMobPower(mob, mob, recall, 40);
            mob.setAggroTargetID(0);
            mob.setCombatTarget(null);
        }
    }
    public static void dead(Mob aiAgent) {
        //Despawn Timer with Loot currently in inventory.
        if (aiAgent.getCharItemManager().getInventoryCount() > 0) {
            if (System.currentTimeMillis() > aiAgent.deathTime + MBServerStatics.DESPAWN_TIMER_WITH_LOOT) {
                aiAgent.despawn();
                //update time of death after mob despawns so respawn time happens after mob despawns.
                aiAgent.setDeathTime(System.currentTimeMillis());
                //aiAgent.state = STATE.Respawn;
            }

            //No items in inventory.
        } else {
            //Mob's Loot has been looted.
            if (aiAgent.isHasLoot()) {
                if (System.currentTimeMillis() > aiAgent.deathTime + MBServerStatics.DESPAWN_TIMER_ONCE_LOOTED) {
                    aiAgent.despawn();
                    //update time of death after mob despawns so respawn time happens after mob despawns.
                    aiAgent.setDeathTime(System.currentTimeMillis());
                    //aiAgent.state = STATE.Respawn;
                }
                //Mob never had Loot.
            } else {
                if (System.currentTimeMillis() > aiAgent.deathTime + MBServerStatics.DESPAWN_TIMER) {
                    aiAgent.despawn();
                    //update time of death after mob despawns so respawn time happens after mob despawns.
                    aiAgent.setDeathTime(System.currentTimeMillis());
                    //aiAgent.state = STATE.Respawn;
                }
            }
        }
    }
}