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P0nk
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src/main/java/net/server/channel/handlers/MoveLifeHandler.java
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src/main/java/net/server/channel/handlers/MoveLifeHandler.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.MapleCharacter;
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import client.MapleClient;
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import java.awt.Point;
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import java.util.LinkedList;
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import java.util.List;
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import config.YamlConfig;
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import server.life.MapleMonster;
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import server.life.MapleMonsterInformationProvider;
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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 server.maps.MapleMapObjectType;
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import tools.MaplePacketCreator;
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import tools.Pair;
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import tools.Randomizer;
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import tools.data.input.SeekableLittleEndianAccessor;
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import tools.exceptions.EmptyMovementException;
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/**
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* @author Danny (Leifde)
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* @author ExtremeDevilz
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* @author Ronan (HeavenMS)
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*/
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public final class MoveLifeHandler extends AbstractMovementPacketHandler {
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@Override
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public final void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {
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MapleCharacter player = c.getPlayer();
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MapleMap map = player.getMap();
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if (player.isChangingMaps()) { // thanks Lame for noticing mob movement shuffle (mob OID on different maps) happening on map transitions
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return;
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}
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int objectid = slea.readInt();
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short moveid = slea.readShort();
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MapleMapObject mmo = map.getMapObject(objectid);
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if (mmo == null || mmo.getType() != MapleMapObjectType.MONSTER) {
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return;
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}
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MapleMonster monster = (MapleMonster) mmo;
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List<MapleCharacter> banishPlayers = null;
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byte pNibbles = slea.readByte();
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byte rawActivity = slea.readByte();
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int skillId = slea.readByte() & 0xff;
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int skillLv = slea.readByte() & 0xff;
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short pOption = slea.readShort();
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slea.skip(8);
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if (rawActivity >= 0) {
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rawActivity = (byte) (rawActivity & 0xFF >> 1);
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}
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boolean isAttack = inRangeInclusive(rawActivity, 24, 41);
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boolean isSkill = inRangeInclusive(rawActivity, 42, 59);
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MobSkill toUse = null;
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int useSkillId = 0, useSkillLevel = 0;
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MobSkill nextUse = null;
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int nextSkillId = 0, nextSkillLevel = 0;
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boolean nextMovementCouldBeSkill = !(isSkill || (pNibbles != 0));
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int castPos;
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if (isSkill) {
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useSkillId = skillId;
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useSkillLevel = skillLv;
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castPos = monster.getSkillPos(useSkillId, useSkillLevel);
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if (castPos != -1) {
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toUse = MobSkillFactory.getMobSkill(useSkillId, useSkillLevel);
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if (monster.canUseSkill(toUse, true)) {
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int animationTime = MapleMonsterInformationProvider.getInstance().getMobSkillAnimationTime(toUse);
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if(animationTime > 0 && toUse.getSkillId() != 129) {
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toUse.applyDelayedEffect(player, monster, true, animationTime);
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} else {
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banishPlayers = new LinkedList<>();
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toUse.applyEffect(player, monster, true, banishPlayers);
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}
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}
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}
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} else {
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castPos = (rawActivity - 24) / 2;
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int atkStatus = monster.canUseAttack(castPos, isSkill);
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if (atkStatus < 1) {
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rawActivity = -1;
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pOption = 0;
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}
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}
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int mobMp = monster.getMp();
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if (nextMovementCouldBeSkill) {
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int noSkills = monster.getNoSkills();
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if (noSkills > 0) {
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int rndSkill = Randomizer.nextInt(noSkills);
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Pair<Integer, Integer> skillToUse = monster.getSkills().get(rndSkill);
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nextSkillId = skillToUse.getLeft();
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nextSkillLevel = skillToUse.getRight();
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nextUse = MobSkillFactory.getMobSkill(nextSkillId, nextSkillLevel);
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if (!(nextUse != null && monster.canUseSkill(nextUse, false) && nextUse.getHP() >= (int) (((float) monster.getHp() / monster.getMaxHp()) * 100) && mobMp >= nextUse.getMpCon())) {
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// thanks OishiiKawaiiDesu for noticing mobs trying to cast skills they are not supposed to be able
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nextSkillId = 0;
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nextSkillLevel = 0;
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nextUse = null;
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}
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}
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}
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slea.readByte();
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slea.readInt(); // whatever
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short start_x = slea.readShort(); // hmm.. startpos?
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short start_y = slea.readShort(); // hmm...
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Point startPos = new Point(start_x, start_y - 2);
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Point serverStartPos = new Point(monster.getPosition());
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Boolean aggro = monster.aggroMoveLifeUpdate(player);
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if (aggro == null) return;
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if (nextUse != null) {
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c.announce(MaplePacketCreator.moveMonsterResponse(objectid, moveid, mobMp, aggro, nextSkillId, nextSkillLevel));
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} else {
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c.announce(MaplePacketCreator.moveMonsterResponse(objectid, moveid, mobMp, aggro));
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}
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try {
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long movementDataStart = slea.getPosition();
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updatePosition(slea, monster, -2); // Thanks Doodle & ZERO傑洛 for noticing sponge-based bosses moving out of stage in case of no-offset applied
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long movementDataLength = slea.getPosition() - movementDataStart; //how many bytes were read by updatePosition
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slea.seek(movementDataStart);
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if (YamlConfig.config.server.USE_DEBUG_SHOW_RCVD_MVLIFE) {
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System.out.println((isSkill ? "SKILL " : (isAttack ? "ATTCK " : " ")) + "castPos: " + castPos + " rawAct: " + rawActivity + " opt: " + pOption + " skillID: " + useSkillId + " skillLV: " + useSkillLevel + " " + "allowSkill: " + nextMovementCouldBeSkill + " mobMp: " + mobMp);
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}
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map.broadcastMessage(player, MaplePacketCreator.moveMonster(objectid, nextMovementCouldBeSkill, rawActivity, useSkillId, useSkillLevel, pOption, startPos, slea, movementDataLength), serverStartPos);
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//updatePosition(res, monster, -2); //does this need to be done after the packet is broadcast?
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map.moveMonster(monster, monster.getPosition());
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} catch (EmptyMovementException e) {}
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if (banishPlayers != null) {
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for (MapleCharacter chr : banishPlayers) {
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chr.changeMapBanish(monster.getBanish().getMap(), monster.getBanish().getPortal(), monster.getBanish().getMsg());
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}
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}
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}
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private static boolean inRangeInclusive(Byte pVal, Integer pMin, Integer pMax) {
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return !(pVal < pMin) || (pVal > pMax);
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}
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}
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