@Override
  public final void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
    final MapleCharacter chr = c.getPlayer();

    if ((slea.available() > 8L) && (chr != null)) {
      slea.skip(4);
      int numChanges = slea.readInt();

      for (int i = 0; i < numChanges; i++) {
        int key = slea.readInt();
        byte type = slea.readByte();
        int action = slea.readInt();
        if ((type == 1) && (action >= 1000)) {
          Skill skil = SkillFactory.getSkill(action);
          if ((skil != null)
              && (((!skil.isFourthJob())
                      && (!skil.isBeginnerSkill())
                      && (skil.isInvisible())
                      && (chr.getSkillLevel(skil) <= 0))
                  || (GameConstants.isLinkedAttackSkill(action))
                  || (action % 10000 < 1000))) {
            continue;
          }
        }
        chr.changeKeybinding(key, type, action);
      }
    } else if (chr != null) {
      int type = slea.readInt();
      int data = slea.readInt();
      switch (type) {
        case 1:
          if (data <= 0) {
            chr.getQuestRemove(MapleQuest.getInstance(GameConstants.HP_ITEM));
          } else {
            chr.getQuestNAdd(MapleQuest.getInstance(GameConstants.HP_ITEM))
                .setCustomData(String.valueOf(data));
          }
          break;
        case 2:
          if (data <= 0) {
            chr.getQuestRemove(MapleQuest.getInstance(GameConstants.MP_ITEM));
          } else {
            chr.getQuestNAdd(MapleQuest.getInstance(GameConstants.MP_ITEM))
                .setCustomData(String.valueOf(data));
          }
          break;
      }
    }
  }
 public static final void SubSummon(final LittleEndianAccessor slea, final MapleCharacter chr) {
   final MapleMapObject obj = chr.getMap().getMapObject(slea.readInt(), MapleMapObjectType.SUMMON);
   if (obj == null || !(obj instanceof MapleSummon)) {
     return;
   }
   final MapleSummon sum = (MapleSummon) obj;
   if (sum == null
       || sum.getOwnerId() != chr.getId()
       || sum.getSkillLevel() <= 0
       || !chr.isAlive()) {
     return;
   }
   switch (sum.getSkill()) {
     case 35121009:
       if (!chr.canSummon(2000)) {
         return;
       }
       final int skillId = slea.readInt(); // 35121009?
       if (sum.getSkill() != skillId) {
         return;
       }
       slea.skip(1); // 0E?
       chr.updateTick(slea.readInt());
       for (int i = 0; i < 3; i++) {
         final MapleSummon tosummon =
             new MapleSummon(
                 chr,
                 SkillFactory.getSkill(35121011).getEffect(sum.getSkillLevel()),
                 new Point(sum.getTruePosition().x, sum.getTruePosition().y - 5),
                 SummonMovementType.WALK_STATIONARY);
         chr.getMap().spawnSummon(tosummon);
         chr.addSummon(tosummon);
       }
       break;
     case 35111011: // healing
       if (!chr.canSummon(1000)) {
         return;
       }
       chr.addHP(
           (int)
               (chr.getStat().getCurrentMaxHp()
                   * SkillFactory.getSkill(sum.getSkill()).getEffect(sum.getSkillLevel()).getHp()
                   / 100.0));
       chr.getClient()
           .getSession()
           .write(
               EffectPacket.showOwnBuffEffect(
                   sum.getSkill(), 2, chr.getLevel(), sum.getSkillLevel()));
       chr.getMap()
           .broadcastMessage(
               chr,
               EffectPacket.showBuffeffect(
                   chr.getId(), sum.getSkill(), 2, chr.getLevel(), sum.getSkillLevel()),
               false);
       break;
     case 1321007: // beholder
       Skill bHealing = SkillFactory.getSkill(slea.readInt());
       final int bHealingLvl = chr.getTotalSkillLevel(bHealing);
       if (bHealingLvl <= 0 || bHealing == null) {
         return;
       }
       final MapleStatEffect healEffect = bHealing.getEffect(bHealingLvl);
       if (bHealing.getId() == 1320009) {
         healEffect.applyTo(chr);
       } else if (bHealing.getId() == 1320008) {
         if (!chr.canSummon(healEffect.getX() * 1000)) {
           return;
         }
         chr.addHP(healEffect.getHp());
       }
       chr.getClient()
           .getSession()
           .write(EffectPacket.showOwnBuffEffect(sum.getSkill(), 2, chr.getLevel(), bHealingLvl));
       chr.getMap()
           .broadcastMessage(
               SummonPacket.summonSkill(
                   chr.getId(),
                   sum.getSkill(),
                   bHealing.getId() == 1320008 ? 5 : (Randomizer.nextInt(3) + 6)));
       chr.getMap()
           .broadcastMessage(
               chr,
               EffectPacket.showBuffeffect(
                   chr.getId(), sum.getSkill(), 2, chr.getLevel(), bHealingLvl),
               false);
       break;
   }
   if (GameConstants.isAngel(sum.getSkill())) {
     if (sum.getSkill() % 10000 == 1087) {
       MapleItemInformationProvider.getInstance().getItemEffect(2022747).applyTo(chr);
     } else if (sum.getSkill() % 10000 == 1179) {
       MapleItemInformationProvider.getInstance().getItemEffect(2022823).applyTo(chr);
     } else if (sum.getSkill() % 10000 == 1085) {
       MapleItemInformationProvider.getInstance().getItemEffect(2022746).applyTo(chr);
     }
     chr.getClient().getSession().write(EffectPacket.showOwnBuffEffect(sum.getSkill(), 2, 2, 1));
     chr.getMap()
         .broadcastMessage(
             chr, EffectPacket.showBuffeffect(chr.getId(), sum.getSkill(), 2, 2, 1), false);
   }
 }
  public static final void SummonPVP(final LittleEndianAccessor slea, final MapleClient c) {
    final MapleCharacter chr = c.getPlayer();
    if (chr == null
        || chr.isHidden()
        || !chr.isAlive()
        || chr.hasBlockedInventory()
        || chr.getMap() == null
        || !chr.inPVP()
        || !chr.getEventInstance().getProperty("started").equals("1")) {
      return;
    }
    final MapleMap map = chr.getMap();
    final MapleMapObject obj = map.getMapObject(slea.readInt(), MapleMapObjectType.SUMMON);
    if (obj == null || !(obj instanceof MapleSummon)) {
      chr.dropMessage(5, "The summon has disappeared.");
      return;
    }
    int tick = -1;
    if (slea.available() == 27) {
      slea.skip(23);
      tick = slea.readInt();
    }
    final MapleSummon summon = (MapleSummon) obj;
    if (summon.getOwnerId() != chr.getId() || summon.getSkillLevel() <= 0) {
      chr.dropMessage(5, "Error.");
      return;
    }
    final Skill skil = SkillFactory.getSkill(summon.getSkill());
    final MapleStatEffect effect = skil.getEffect(summon.getSkillLevel());
    final int lvl = Integer.parseInt(chr.getEventInstance().getProperty("lvl"));
    final int type = Integer.parseInt(chr.getEventInstance().getProperty("type"));
    final int ourScore =
        Integer.parseInt(chr.getEventInstance().getProperty(String.valueOf(chr.getId())));
    int addedScore = 0;
    final boolean magic = skil.isMagic();
    boolean killed = false, didAttack = false;
    double maxdamage =
        lvl == 3
            ? chr.getStat().getCurrentMaxBasePVPDamageL()
            : chr.getStat().getCurrentMaxBasePVPDamage();
    maxdamage *= (effect.getDamage() + chr.getStat().getDamageIncrease(summon.getSkill())) / 100.0;
    int mobCount = 1, attackCount = 1, ignoreDEF = chr.getStat().ignoreTargetDEF;

    final SummonSkillEntry sse = SkillFactory.getSummonData(summon.getSkill());
    if (summon.getSkill() / 1000000 != 35 && summon.getSkill() != 33101008 && sse == null) {
      chr.dropMessage(5, "Error in processing attack.");
      return;
    }
    Point lt, rb;
    if (sse != null) {
      if (sse.delay > 0) {
        if (tick != -1) {
          summon.CheckSummonAttackFrequency(chr, tick);
          chr.updateTick(tick);
        } else {
          summon.CheckPVPSummonAttackFrequency(chr);
        }
        chr.getCheatTracker().checkSummonAttack();
      }
      mobCount = sse.mobCount;
      attackCount = sse.attackCount;
      lt = sse.lt;
      rb = sse.rb;
    } else {
      lt = new Point(-100, -100);
      rb = new Point(100, 100);
    }
    final Rectangle box =
        MapleStatEffect.calculateBoundingBox(chr.getTruePosition(), chr.isFacingLeft(), lt, rb, 0);
    List<AttackPair> ourAttacks = new ArrayList<AttackPair>();
    List<Pair<Integer, Boolean>> attacks;
    maxdamage *= chr.getStat().dam_r / 100.0;
    for (MapleMapObject mo : chr.getMap().getCharactersIntersect(box)) {
      final MapleCharacter attacked = (MapleCharacter) mo;
      if (attacked.getId() != chr.getId()
          && attacked.isAlive()
          && !attacked.isHidden()
          && (type == 0 || attacked.getTeam() != chr.getTeam())) {
        double rawDamage =
            maxdamage
                / Math.max(
                    0,
                    ((magic ? attacked.getStat().mdef : attacked.getStat().wdef)
                            * Math.max(1.0, 100.0 - ignoreDEF)
                            / 100.0)
                        * (type == 3 ? 0.1 : 0.25));
        if (attacked.getBuffedValue(MapleBuffStat.INVINCIBILITY) != null
            || PlayersHandler.inArea(attacked)) {
          rawDamage = 0;
        }
        rawDamage += (rawDamage * chr.getDamageIncrease(attacked.getId()) / 100.0);
        rawDamage *= attacked.getStat().mesoGuard / 100.0;
        rawDamage = attacked.modifyDamageTaken(rawDamage, attacked).left;
        final double min = (rawDamage * chr.getStat().trueMastery / 100);
        attacks = new ArrayList<Pair<Integer, Boolean>>(attackCount);
        int totalMPLoss = 0, totalHPLoss = 0;
        for (int i = 0; i < attackCount; i++) {
          int mploss = 0;
          double ourDamage =
              Randomizer.nextInt((int) Math.abs(Math.round(rawDamage - min)) + 1) + min;
          if (attacked.getStat().dodgeChance > 0
              && Randomizer.nextInt(100) < attacked.getStat().dodgeChance) {
            ourDamage = 0;
            // i dont think level actually matters or it'd be too op
            // } else if (attacked.getLevel() > chr.getLevel() && Randomizer.nextInt(100) <
            // (attacked.getLevel() - chr.getLevel())) {
            //	ourDamage = 0;
          }
          if (attacked.getBuffedValue(MapleBuffStat.MAGIC_GUARD) != null) {
            mploss =
                (int)
                    Math.min(
                        attacked.getStat().getMp(),
                        (ourDamage
                            * attacked.getBuffedValue(MapleBuffStat.MAGIC_GUARD).doubleValue()
                            / 100.0));
          }
          ourDamage -= mploss;
          if (attacked.getBuffedValue(MapleBuffStat.INFINITY) != null) {
            mploss = 0;
          }
          attacks.add(new Pair<Integer, Boolean>((int) Math.floor(ourDamage), false));

          totalHPLoss += Math.floor(ourDamage);
          totalMPLoss += mploss;
        }
        attacked.addMPHP(-totalHPLoss, -totalMPLoss);
        ourAttacks.add(new AttackPair(attacked.getId(), attacked.getPosition(), attacks));
        attacked.getCheatTracker().setAttacksWithoutHit(false);
        if (totalHPLoss > 0) {
          didAttack = true;
        }
        if (attacked.getStat().getHPPercent() <= 20) {
          SkillFactory.getSkill(attacked.getStat().getSkillByJob(93, attacked.getJob()))
              .getEffect(1)
              .applyTo(attacked);
        }
        if (effect != null) {
          if (effect.getMonsterStati().size() > 0 && effect.makeChanceResult()) {
            for (Map.Entry<MonsterStatus, Integer> z : effect.getMonsterStati().entrySet()) {
              MapleDisease d = MonsterStatus.getLinkedDisease(z.getKey());
              if (d != null) {
                attacked.giveDebuff(d, z.getValue(), effect.getDuration(), d.getDisease(), 1);
              }
            }
          }
          effect.handleExtraPVP(chr, attacked);
        }
        chr.getClient()
            .getSession()
            .write(
                CField.getPVPHPBar(
                    attacked.getId(),
                    attacked.getStat().getHp(),
                    attacked.getStat().getCurrentMaxHp()));
        addedScore += (totalHPLoss / 100) + (totalMPLoss / 100); // ive NO idea
        if (!attacked.isAlive()) {
          killed = true;
        }

        if (ourAttacks.size() >= mobCount) {
          break;
        }
      }
    }
    if (killed || addedScore > 0) {
      chr.getEventInstance().addPVPScore(chr, addedScore);
      chr.getClient().getSession().write(CField.getPVPScore(ourScore + addedScore, killed));
    }
    if (didAttack) {
      chr.getMap()
          .broadcastMessage(
              SummonPacket.pvpSummonAttack(
                  chr.getId(),
                  chr.getLevel(),
                  summon.getObjectId(),
                  summon.isFacingLeft() ? 4 : 0x84,
                  summon.getTruePosition(),
                  ourAttacks));
      if (!summon.isMultiAttack()) {
        chr.getMap().broadcastMessage(SummonPacket.removeSummon(summon, true));
        chr.getMap().removeMapObject(summon);
        chr.removeVisibleMapObject(summon);
        chr.removeSummon(summon);
        if (summon.getSkill() != 35121011) {
          chr.cancelEffectFromBuffStat(MapleBuffStat.SUMMON);
        }
      }
    }
  }
  public static void SummonAttack(
      final LittleEndianAccessor slea, final MapleClient c, final MapleCharacter chr) {
    if (chr == null || !chr.isAlive() || chr.getMap() == null) {
      return;
    }
    final MapleMap map = chr.getMap();
    final MapleMapObject obj = map.getMapObject(slea.readInt(), MapleMapObjectType.SUMMON);
    if (obj == null || !(obj instanceof MapleSummon)) {
      chr.dropMessage(5, "The summon has disappeared.");
      return;
    }
    final MapleSummon summon = (MapleSummon) obj;
    if (summon.getOwnerId() != chr.getId() || summon.getSkillLevel() <= 0) {
      chr.dropMessage(5, "Error.");
      return;
    }
    final SummonSkillEntry sse = SkillFactory.getSummonData(summon.getSkill());
    if (summon.getSkill() / 1000000 != 35 && summon.getSkill() != 33101008 && sse == null) {
      chr.dropMessage(5, "Error in processing attack.");
      return;
    }
    if (!GameConstants.GMS) {
      slea.skip(8);
    }
    int tick = slea.readInt();
    if (sse != null && sse.delay > 0) {
      chr.updateTick(tick);
      // summon.CheckSummonAttackFrequency(chr, tick);
      // chr.getCheatTracker().checkSummonAttack();
    }
    if (!GameConstants.GMS) {
      slea.skip(8);
    }
    final byte animation = slea.readByte();
    if (!GameConstants.GMS) {
      slea.skip(8);
    }
    final byte numAttacked = slea.readByte();
    if (sse != null && numAttacked > sse.mobCount) {
      chr.dropMessage(5, "Warning: Attacking more monster than summon can do");
      chr.getCheatTracker().registerOffense(CheatingOffense.SUMMON_HACK_MOBS);
      // AutobanManager.getInstance().autoban(c, "Attacking more monster that summon can do (Skillid
      // : "+summon.getSkill()+" Count : " + numAttacked + ", allowed : " + sse.mobCount + ")");
      return;
    }
    slea.skip(summon.getSkill() == 35111002 ? 24 : 12); // some pos stuff
    final List<Pair<Integer, Integer>> allDamage = new ArrayList<Pair<Integer, Integer>>();
    for (int i = 0; i < numAttacked; i++) {
      final MapleMonster mob = map.getMonsterByOid(slea.readInt());

      if (mob == null) {
        continue;
      }
      slea.skip(22); // who knows
      final int damge = slea.readInt();
      allDamage.add(new Pair<Integer, Integer>(mob.getObjectId(), damge));
    }
    // if (!summon.isChangedMap()) {
    map.broadcastMessage(
        chr,
        SummonPacket.summonAttack(
            summon.getOwnerId(), summon.getObjectId(), animation, allDamage, chr.getLevel(), false),
        summon.getTruePosition());
    // }
    final Skill summonSkill = SkillFactory.getSkill(summon.getSkill());
    final MapleStatEffect summonEffect = summonSkill.getEffect(summon.getSkillLevel());
    if (summonEffect == null) {
      chr.dropMessage(5, "Error in attack.");
      return;
    }
    for (Pair<Integer, Integer> attackEntry : allDamage) {
      final int toDamage = attackEntry.right;
      final MapleMonster mob = map.getMonsterByOid(attackEntry.left);
      if (mob == null) {
        continue;
      }
      if (sse != null
          && sse.delay > 0
          && summon.getMovementType() != SummonMovementType.STATIONARY
          && summon.getMovementType() != SummonMovementType.CIRCLE_STATIONARY
          && summon.getMovementType() != SummonMovementType.WALK_STATIONARY
          && chr.getTruePosition().distanceSq(mob.getTruePosition()) > 400000.0) {
        // chr.getCheatTracker().registerOffense(CheatingOffense.ATTACK_FARAWAY_MONSTER_SUMMON);
      }
      if (toDamage > 0 && summonEffect.getMonsterStati().size() > 0) {
        if (summonEffect.makeChanceResult()) {
          for (Map.Entry<MonsterStatus, Integer> z : summonEffect.getMonsterStati().entrySet()) {
            mob.applyStatus(
                chr,
                new MonsterStatusEffect(z.getKey(), z.getValue(), summonSkill.getId(), null, false),
                summonEffect.isPoison(),
                4000,
                true,
                summonEffect);
          }
        }
      }
      if (chr.isGM()
          || toDamage
              < (chr.getStat().getCurrentMaxBaseDamage()
                  * 5.0
                  * (summonEffect.getSelfDestruction()
                      + summonEffect.getDamage()
                      + chr.getStat().getDamageIncrease(summonEffect.getSourceId()))
                  / 100.0)) { // 10 x dmg.. eh
        mob.damage(chr, toDamage, true);
        chr.checkMonsterAggro(mob);
        if (!mob.isAlive()) {
          chr.getClient().getSession().write(MobPacket.killMonster(mob.getObjectId(), 1));
        }
      } else {
        chr.dropMessage(5, "Warning - high damage.");
        // AutobanManager.getInstance().autoban(c, "High Summon Damage (" + toDamage + " to " +
        // attackEntry.right + ")");
        // TODO : Check player's stat for damage checking.
        break;
      }
    }
    if (!summon.isMultiAttack()) {
      chr.getMap().broadcastMessage(SummonPacket.removeSummon(summon, true));
      chr.getMap().removeMapObject(summon);
      chr.removeVisibleMapObject(summon);
      chr.removeSummon(summon);
      if (summon.getSkill() != 35121011) {
        chr.cancelEffectFromBuffStat(MapleBuffStat.SUMMON);
      }
    }
  }