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P0nk
293
src/main/java/net/server/channel/handlers/TakeDamageHandler.java
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293
src/main/java/net/server/channel/handlers/TakeDamageHandler.java
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/*
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This file is part of the OdinMS Maple Story Server
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Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
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Matthias Butz <matze@odinms.de>
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Jan Christian Meyer <vimes@odinms.de>
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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 Affero General Public License as
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published by the Free Software Foundation version 3 as published by
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the Free Software Foundation. You may not use, modify or distribute
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this program under any other version of the GNU Affero General Public
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License.
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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 Affero General Public License for more details.
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You should have received a copy of the GNU Affero 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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package net.server.channel.handlers;
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import client.MapleBuffStat;
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import client.MapleCharacter;
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import client.MapleClient;
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import client.Skill;
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import client.SkillFactory;
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import client.inventory.Item;
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import client.inventory.MapleInventory;
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import client.inventory.MapleInventoryType;
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import client.status.MonsterStatus;
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import client.status.MonsterStatusEffect;
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import config.YamlConfig;
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import constants.game.GameConstants;
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import constants.inventory.ItemConstants;
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import constants.skills.Aran;
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import java.awt.Point;
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import java.util.Collections;
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import java.util.ArrayList;
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import java.util.List;
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import net.AbstractMaplePacketHandler;
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import client.inventory.manipulator.MapleInventoryManipulator;
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import server.MapleStatEffect;
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import server.life.MapleLifeFactory.loseItem;
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import server.life.MapleMonster;
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import server.life.MobAttackInfo;
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import server.life.MobAttackInfoFactory;
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import server.life.MobSkill;
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import server.life.MobSkillFactory;
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import server.maps.MapleMap;
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import server.maps.MapleMapObject;
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import tools.FilePrinter;
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import tools.MaplePacketCreator;
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import tools.Randomizer;
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import tools.data.input.SeekableLittleEndianAccessor;
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public final class TakeDamageHandler extends AbstractMaplePacketHandler {
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@Override
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public final void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
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List<MapleCharacter> banishPlayers = new ArrayList<>();
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MapleCharacter chr = c.getPlayer();
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slea.readInt();
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byte damagefrom = slea.readByte();
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slea.readByte(); //Element
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int damage = slea.readInt();
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int oid = 0, monsteridfrom = 0, pgmr = 0, direction = 0;
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int pos_x = 0, pos_y = 0, fake = 0;
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boolean is_pgmr = false, is_pg = true, is_deadly = false;
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int mpattack = 0;
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MapleMonster attacker = null;
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final MapleMap map = chr.getMap();
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if (damagefrom != -3 && damagefrom != -4) {
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monsteridfrom = slea.readInt();
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oid = slea.readInt();
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try {
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MapleMapObject mmo = map.getMapObject(oid);
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if(mmo instanceof MapleMonster) {
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attacker = (MapleMonster) mmo;
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if(attacker.getId() != monsteridfrom) {
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attacker = null;
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}
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}
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if (attacker != null) {
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if (attacker.isBuffed(MonsterStatus.NEUTRALISE)) {
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return;
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}
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List<loseItem> loseItems;
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if (damage > 0) {
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loseItems = attacker.getStats().loseItem();
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if (loseItems != null) {
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if (chr.getBuffEffect(MapleBuffStat.AURA) == null) {
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MapleInventoryType type;
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final int playerpos = chr.getPosition().x;
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byte d = 1;
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Point pos = new Point(0, chr.getPosition().y);
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for (loseItem loseItem : loseItems) {
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type = ItemConstants.getInventoryType(loseItem.getId());
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int dropCount = 0;
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for (byte b = 0; b < loseItem.getX(); b++) {
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if (Randomizer.nextInt(100) < loseItem.getChance()) {
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dropCount += 1;
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}
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}
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if (dropCount > 0) {
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int qty;
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MapleInventory inv = chr.getInventory(type);
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inv.lockInventory();
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try {
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qty = Math.min(chr.countItem(loseItem.getId()), dropCount);
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MapleInventoryManipulator.removeById(c, type, loseItem.getId(), qty, false, false);
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} finally {
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inv.unlockInventory();
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}
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if (loseItem.getId() == 4031868) {
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chr.updateAriantScore();
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}
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for (byte b = 0; b < qty; b++) {
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pos.x = (int) (playerpos + ((d % 2 == 0) ? (25 * (d + 1) / 2) : -(25 * (d / 2))));
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map.spawnItemDrop(chr, chr, new Item(loseItem.getId(), (short) 0, (short) 1), map.calcDropPos(pos, chr.getPosition()), true, true);
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d++;
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}
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}
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}
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}
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map.removeMapObject(attacker);
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}
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}
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} else if (damagefrom != 0 || !map.removeSelfDestructive(oid)) { // thanks inhyuk for noticing self-destruct damage not being handled properly
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return;
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}
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} catch(ClassCastException e) {
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//this happens due to mob on last map damaging player just before changing maps
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e.printStackTrace();
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FilePrinter.printError(FilePrinter.EXCEPTION_CAUGHT, "Attacker is not a mob-type, rather is a " + map.getMapObject(oid).getClass().getName() + " entity.");
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return;
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}
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direction = slea.readByte();
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}
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if (damagefrom != -1 && damagefrom != -2 && attacker != null) {
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MobAttackInfo attackInfo = MobAttackInfoFactory.getMobAttackInfo(attacker, damagefrom);
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if (attackInfo != null) {
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if (attackInfo.isDeadlyAttack()) {
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mpattack = chr.getMp() - 1;
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is_deadly = true;
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}
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mpattack += attackInfo.getMpBurn();
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MobSkill mobSkill = MobSkillFactory.getMobSkill(attackInfo.getDiseaseSkill(), attackInfo.getDiseaseLevel());
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if (mobSkill != null && damage > 0) {
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mobSkill.applyEffect(chr, attacker, false, banishPlayers);
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}
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attacker.setMp(attacker.getMp() - attackInfo.getMpCon());
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if (chr.getBuffedValue(MapleBuffStat.MANA_REFLECTION) != null && damage > 0 && !attacker.isBoss()) {
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int jobid = chr.getJob().getId();
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if (jobid == 212 || jobid == 222 || jobid == 232) {
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int id = jobid * 10000 + 1002;
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Skill manaReflectSkill = SkillFactory.getSkill(id);
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if (chr.isBuffFrom(MapleBuffStat.MANA_REFLECTION, manaReflectSkill) && chr.getSkillLevel(manaReflectSkill) > 0 && manaReflectSkill.getEffect(chr.getSkillLevel(manaReflectSkill)).makeChanceResult()) {
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int bouncedamage = (damage * manaReflectSkill.getEffect(chr.getSkillLevel(manaReflectSkill)).getX() / 100);
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if (bouncedamage > attacker.getMaxHp() / 5) {
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bouncedamage = attacker.getMaxHp() / 5;
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}
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map.damageMonster(chr, attacker, bouncedamage);
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map.broadcastMessage(chr, MaplePacketCreator.damageMonster(oid, bouncedamage), true);
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chr.getClient().announce(MaplePacketCreator.showOwnBuffEffect(id, 5));
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map.broadcastMessage(chr, MaplePacketCreator.showBuffeffect(chr.getId(), id, 5), false);
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}
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}
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}
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}
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}
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if (damage == -1) {
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fake = 4020002 + (chr.getJob().getId() / 10 - 40) * 100000;
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}
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if (damage > 0) {
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chr.getAutobanManager().resetMisses();
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} else {
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chr.getAutobanManager().addMiss();
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}
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//in dojo player cannot use pot, so deadly attacks should be turned off as well
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if(is_deadly && GameConstants.isDojo(chr.getMap().getId()) && !YamlConfig.config.server.USE_DEADLY_DOJO) {
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damage = 0;
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mpattack = 0;
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}
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if (damage > 0 && !chr.isHidden()) {
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if (attacker != null) {
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if (damagefrom == -1) {
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if (chr.getBuffedValue(MapleBuffStat.POWERGUARD) != null) { // PG works on bosses, but only at half of the rate.
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int bouncedamage = (int) (damage * (chr.getBuffedValue(MapleBuffStat.POWERGUARD).doubleValue() / (attacker.isBoss() ? 200 : 100)));
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bouncedamage = Math.min(bouncedamage, attacker.getMaxHp() / 10);
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damage -= bouncedamage;
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map.damageMonster(chr, attacker, bouncedamage);
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map.broadcastMessage(chr, MaplePacketCreator.damageMonster(oid, bouncedamage), false, true);
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attacker.aggroMonsterDamage(chr, bouncedamage);
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}
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MapleStatEffect bPressure = chr.getBuffEffect(MapleBuffStat.BODY_PRESSURE); // thanks Atoot for noticing an issue on Body Pressure neutralise
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if (bPressure != null) {
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Skill skill = SkillFactory.getSkill(Aran.BODY_PRESSURE);
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if (!attacker.alreadyBuffedStats().contains(MonsterStatus.NEUTRALISE)) {
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if (!attacker.isBoss() && bPressure.makeChanceResult()) {
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attacker.applyStatus(chr, new MonsterStatusEffect(Collections.singletonMap(MonsterStatus.NEUTRALISE, 1), skill, null, false), false, (bPressure.getDuration() / 10) * 2, false);
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}
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}
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}
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}
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MapleStatEffect cBarrier = chr.getBuffEffect(MapleBuffStat.COMBO_BARRIER); // thanks BHB for noticing Combo Barrier buff not working
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if (cBarrier != null) {
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damage *= (cBarrier.getX() / 1000.0);
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}
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}
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if (damagefrom != -3 && damagefrom != -4) {
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int achilles = 0;
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Skill achilles1 = null;
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int jobid = chr.getJob().getId();
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if (jobid < 200 && jobid % 10 == 2) {
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achilles1 = SkillFactory.getSkill(jobid * 10000 + (jobid == 112 ? 4 : 5));
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achilles = chr.getSkillLevel(achilles1);
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}
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if (achilles != 0 && achilles1 != null) {
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damage *= (achilles1.getEffect(achilles).getX() / 1000.0);
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}
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Skill highDef = SkillFactory.getSkill(Aran.HIGH_DEFENSE);
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int hdLevel = chr.getSkillLevel(highDef);
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if (highDef != null && hdLevel > 0) {
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damage *= Math.ceil(highDef.getEffect(hdLevel).getX() / 1000.0);
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}
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}
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Integer mesoguard = chr.getBuffedValue(MapleBuffStat.MESOGUARD);
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if (chr.getBuffedValue(MapleBuffStat.MAGIC_GUARD) != null && mpattack == 0) {
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int mploss = (int) (damage * (chr.getBuffedValue(MapleBuffStat.MAGIC_GUARD).doubleValue() / 100.0));
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int hploss = damage - mploss;
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int curmp = chr.getMp();
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if (mploss > curmp) {
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hploss += mploss - curmp;
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mploss = curmp;
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}
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chr.addMPHP(-hploss, -mploss);
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} else if (mesoguard != null) {
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damage = Math.round(damage / 2);
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int mesoloss = (int) (damage * (mesoguard.doubleValue() / 100.0));
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if (chr.getMeso() < mesoloss) {
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chr.gainMeso(-chr.getMeso(), false);
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chr.cancelBuffStats(MapleBuffStat.MESOGUARD);
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} else {
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chr.gainMeso(-mesoloss, false);
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}
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chr.addMPHP(-damage, -mpattack);
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} else {
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if (chr.isRidingBattleship()) {
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chr.decreaseBattleshipHp(damage);
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}
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chr.addMPHP(-damage, -mpattack);
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}
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}
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if (!chr.isHidden()) {
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map.broadcastMessage(chr, MaplePacketCreator.damagePlayer(damagefrom, monsteridfrom, chr.getId(), damage, fake, direction, is_pgmr, pgmr, is_pg, oid, pos_x, pos_y), false);
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} else {
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map.broadcastGMMessage(chr, MaplePacketCreator.damagePlayer(damagefrom, monsteridfrom, chr.getId(), damage, fake, direction, is_pgmr, pgmr, is_pg, oid, pos_x, pos_y), false);
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}
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if (GameConstants.isDojo(map.getId())) {
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chr.setDojoEnergy(chr.getDojoEnergy() + YamlConfig.config.server.DOJO_ENERGY_DMG);
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c.announce(MaplePacketCreator.getEnergy("energy", chr.getDojoEnergy()));
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}
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for (MapleCharacter player : banishPlayers) { // chill, if this list ever gets non-empty an attacker does exist, trust me :)
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player.changeMapBanish(attacker.getBanish().getMap(), attacker.getBanish().getPortal(), attacker.getBanish().getMsg());
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}
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}
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}
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