Level/exp on all equips + Player stats overhaul + Chair handler patch

Implemented a massive overhaul on Character.wz, adding in equipment level-related nodes in order to make equipments level/EXP info available for anyone to check.
Implemented a major overhaul on the player stat management throughout the source, properly encapsulating and concurrency protecting it's mechanics.
Reviewed several MoveLifeHandler aspects, some of them trying to prevent mobs from falling from footholds in certain circumstances.
Fixed MP Recovery instant killing players when they run out of HP to use.
Fixed some chairs arbitrarily disconnecting players upon HP/MP recovery.
Fixed Puppets sticking to maps in certain scenarios.
Cached data and added concurrency protection for EXP gain on equipments.
Reworked Chair Mastery skill, now with recovering amounts based on a player's base HP/MP pool.
Fixed several deadlock issues revolving rate coupons and character inventory.
Improved overall autopot handler performance.
Reworked door bosses (such as Crocell), now spawning each 3 hours instead of upon player's demand.
Fixed alliances not saving rank names on DB at creation time.
Fixed alliances retaining disbanded guild info on DB.
Added Mystic Door support for the Mushroom Castle area.

src/client/command/commands/gm4/CakeCommand.java

@@ -0,0 +1,51 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MapleLifeFactory;
+import server.life.MapleMonster;
+
+public class CakeCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        MapleMonster monster = MapleLifeFactory.getMonster(9400606);
+        if (params.length == 1) {
+            double mobHp = Double.parseDouble(params[0]);
+            int newHp = (mobHp <= 0) ? Integer.MAX_VALUE : ((mobHp > Integer.MAX_VALUE) ? Integer.MAX_VALUE : (int) mobHp);
+
+            monster.getStats().setHp(newHp);
+            monster.setStartingHp(newHp);
+        }
+
+        player.getMap().spawnMonsterOnGroundBelow(monster, player.getPosition());
+    }
+}

src/client/command/commands/gm4/DropRateCommand.java

@@ -0,0 +1,49 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import tools.MaplePacketCreator;
+
+public class DropRateCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !droprate <newrate>");
+            return;
+        }
+
+        int droprate = Math.max(Integer.parseInt(params[0]), 1);
+        c.getWorldServer().setDropRate(droprate);
+        c.getWorldServer().broadcastPacket(MaplePacketCreator.serverNotice(6, "[Rate] Drop Rate has been changed to " + droprate + "x."));
+
+    }
+}

src/client/command/commands/gm4/ExpRateCommand.java

@@ -0,0 +1,48 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import tools.MaplePacketCreator;
+
+public class ExpRateCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !exprate <newrate>");
+            return;
+        }
+
+        int exprate = Math.max(Integer.parseInt(params[0]), 1);
+        c.getWorldServer().setExpRate(exprate);
+        c.getWorldServer().broadcastPacket(MaplePacketCreator.serverNotice(6, "[Rate] Exp Rate has been changed to " + exprate + "x."));
+    }
+}

src/client/command/commands/gm4/ForceVacCommand.java

@@ -0,0 +1,76 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import client.inventory.MaplePet;
+import client.inventory.manipulator.MapleInventoryManipulator;
+import server.maps.MapleMapItem;
+import server.maps.MapleMapObject;
+import server.maps.MapleMapObjectType;
+import tools.MaplePacketCreator;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class ForceVacCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        List<MapleMapObject> items = player.getMap().getMapObjectsInRange(player.getPosition(), Double.POSITIVE_INFINITY, Arrays.asList(MapleMapObjectType.ITEM));
+        for (MapleMapObject item : items) {
+            MapleMapItem mapItem = (MapleMapItem) item;
+
+            mapItem.lockItem();
+            try {
+                if (mapItem.isPickedUp()) continue;
+
+                if (mapItem.getMeso() > 0) {
+                    player.gainMeso(mapItem.getMeso(), true);
+                } else if (mapItem.getItemId() == 4031865 || mapItem.getItemId() == 4031866) {
+                    // Add NX to account, show effect and make item disappear
+                    player.getCashShop().gainCash(1, mapItem.getItemId() == 4031865 ? 100 : 250);
+                } else if (mapItem.getItem().getItemId() >= 5000000 && mapItem.getItem().getItemId() <= 5000100) {
+                    int petId = MaplePet.createPet(mapItem.getItem().getItemId());
+                    if (petId == -1) {
+                        continue;
+                    }
+                    MapleInventoryManipulator.addById(c, mapItem.getItem().getItemId(), mapItem.getItem().getQuantity(), null, petId);
+                } else {
+                    MapleInventoryManipulator.addFromDrop(c, mapItem.getItem(), true);
+                }
+
+                player.getMap().pickItemDrop(MaplePacketCreator.removeItemFromMap(mapItem.getObjectId(), 2, player.getId()), mapItem);
+            } finally {
+                mapItem.unlockItem();
+            }
+        }
+    }
+}

src/client/command/commands/gm4/HorntailCommand.java

@@ -0,0 +1,46 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.maps.MapleMap;
+
+import java.awt.*;
+
+public class HorntailCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        final Point targetPoint = player.getPosition();
+        final MapleMap targetMap = player.getMap();
+
+        targetMap.spawnHorntailOnGroundBelow(targetPoint);
+    }
+}

src/client/command/commands/gm4/ItemVacCommand.java

@@ -0,0 +1,48 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.maps.MapleMapObject;
+import server.maps.MapleMapObjectType;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class ItemVacCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        List<MapleMapObject> list = player.getMap().getMapObjectsInRange(player.getPosition(), Double.POSITIVE_INFINITY, Arrays.asList(MapleMapObjectType.ITEM));
+        for (MapleMapObject item : list) {
+            player.pickupItem(item);
+        }
+    }
+}

src/client/command/commands/gm4/MesoRateCommand.java

@@ -0,0 +1,49 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import tools.MaplePacketCreator;
+
+public class MesoRateCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !mesorate <newrate>");
+            return;
+        }
+
+        int mesorate = Math.max(Integer.parseInt(params[0]), 1);
+        c.getWorldServer().setMesoRate(mesorate);
+        c.getWorldServer().broadcastPacket(MaplePacketCreator.serverNotice(6, "[Rate] Meso Rate has been changed to " + mesorate + "x."));
+
+    }
+}

src/client/command/commands/gm4/PapCommand.java

@@ -0,0 +1,41 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MapleLifeFactory;
+
+public class PapCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        player.getMap().spawnMonsterOnGroundBelow(MapleLifeFactory.getMonster(8510000), player.getPosition());
+    }
+}

src/client/command/commands/gm4/PianusCommand.java

@@ -0,0 +1,41 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MapleLifeFactory;
+
+public class PianusCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        player.getMap().spawnMonsterOnGroundBelow(MapleLifeFactory.getMonster(8510000), player.getPosition());
+    }
+}

src/client/command/commands/gm4/PinkbeanCommand.java

@@ -0,0 +1,42 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MapleLifeFactory;
+
+public class PinkbeanCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        player.getMap().spawnMonsterOnGroundBelow(MapleLifeFactory.getMonster(8820001), player.getPosition());
+
+    }
+}

src/client/command/commands/gm4/PlayerNpcCommand.java

@@ -0,0 +1,48 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MaplePlayerNPC;
+
+public class PlayerNpcCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !playernpc <playername>");
+            return;
+        }
+
+        if (!MaplePlayerNPC.spawnPlayerNPC(player.getMapId(), player.getPosition(), c.getChannelServer().getPlayerStorage().getCharacterByName(params[0]))) {
+            player.dropMessage(5, "Could not deploy PlayerNPC. Either there's no room available here or depleted out scriptids to use.");
+        }
+    }
+}

src/client/command/commands/gm4/PlayerNpcRemoveCommand.java

@@ -0,0 +1,45 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MaplePlayerNPC;
+
+public class PlayerNpcRemoveCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !playernpcremove <playername>");
+            return;
+        }
+        MaplePlayerNPC.removePlayerNPC(c.getChannelServer().getPlayerStorage().getCharacterByName(params[0]));
+    }
+}

src/client/command/commands/gm4/ProItemCommand.java

@@ -0,0 +1,84 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import client.inventory.Equip;
+import client.inventory.Item;
+import client.inventory.MapleInventoryType;
+import client.inventory.manipulator.MapleInventoryManipulator;
+import constants.ItemConstants;
+import server.MapleItemInformationProvider;
+
+public class ProItemCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 2) {
+            player.yellowMessage("Syntax: !proitem <itemid> <stat value> [<spdjmp value>]");
+            return;
+        }
+        int itemid = Integer.parseInt(params[0]);
+        short stat = (short) Math.max(0, Short.parseShort(params[1]));
+        short spdjmp = params.length >= 3 ? (short) Math.max(0, Short.parseShort(params[2])) : 0;
+
+        MapleItemInformationProvider ii = MapleItemInformationProvider.getInstance();
+        MapleInventoryType type = ItemConstants.getInventoryType(itemid);
+        if (type.equals(MapleInventoryType.EQUIP)) {
+            Item it = ii.getEquipById(itemid);
+            it.setOwner(player.getName());
+
+            hardsetItemStats((Equip) it, stat, spdjmp);
+            MapleInventoryManipulator.addFromDrop(c, it);
+        } else {
+            player.dropMessage(6, "Make sure it's an equippable item.");
+        }
+    }
+    private static void hardsetItemStats(Equip equip, short stat, short spdjmp) {
+        equip.setStr(stat);
+        equip.setDex(stat);
+        equip.setInt(stat);
+        equip.setLuk(stat);
+        equip.setMatk(stat);
+        equip.setWatk(stat);
+        equip.setAcc(stat);
+        equip.setAvoid(stat);
+        equip.setJump(spdjmp);
+        equip.setSpeed(spdjmp);
+        equip.setWdef(stat);
+        equip.setMdef(stat);
+        equip.setHp(stat);
+        equip.setMp(stat);
+
+        byte flag = equip.getFlag();
+        flag |= ItemConstants.UNTRADEABLE;
+        equip.setFlag(flag);
+    }
+}

src/client/command/commands/gm4/QuestRateCommand.java

@@ -0,0 +1,49 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import tools.MaplePacketCreator;
+
+public class QuestRateCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !questrate <newrate>");
+            return;
+        }
+
+        int questrate = Math.max(Integer.parseInt(params[0]), 1);
+        c.getWorldServer().setQuestRate(questrate);
+        c.getWorldServer().broadcastPacket(MaplePacketCreator.serverNotice(6, "[Rate] Quest Rate has been changed to " + questrate + "x."));
+
+    }
+}

src/client/command/commands/gm4/ServerMessageCommand.java

@@ -0,0 +1,40 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+
+public class ServerMessageCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        //MapleCharacter player = c.getPlayer();
+        c.getWorldServer().setServerMessage(joinStringFrom(params, 0));
+    }
+}

src/client/command/commands/gm4/SetEqStatCommand.java

@@ -0,0 +1,81 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import client.inventory.Equip;
+import client.inventory.MapleInventory;
+import client.inventory.MapleInventoryType;
+import constants.ItemConstants;
+
+public class SetEqStatCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !seteqstat <stat value> [<spdjmp value>]");
+            return;
+        }
+
+        short newStat = (short) Math.max(0, Integer.parseInt(params[0]));
+        short newSpdJmp = params.length >= 2 ? (short) Integer.parseInt(params[1]) : 0;
+        MapleInventory equip = player.getInventory(MapleInventoryType.EQUIP);
+        
+        for (byte i = 1; i <= equip.getSlotLimit(); i++) {
+            try {
+                Equip eq = (Equip) equip.getItem(i);
+                if (eq == null) continue;
+
+                eq.setWdef(newStat);
+                eq.setAcc(newStat);
+                eq.setAvoid(newStat);
+                eq.setJump(newSpdJmp);
+                eq.setMatk(newStat);
+                eq.setMdef(newStat);
+                eq.setHp(newStat);
+                eq.setMp(newStat);
+                eq.setSpeed(newSpdJmp);
+                eq.setWatk(newStat);
+                eq.setDex(newStat);
+                eq.setInt(newStat);
+                eq.setStr(newStat);
+                eq.setLuk(newStat);
+
+                byte flag = eq.getFlag();
+                flag |= ItemConstants.UNTRADEABLE;
+                eq.setFlag(flag);
+
+                player.forceUpdateItem(eq);
+            } catch (Exception e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

src/client/command/commands/gm4/TravelRateCommand.java

@@ -0,0 +1,48 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import tools.MaplePacketCreator;
+
+public class TravelRateCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        if (params.length < 1) {
+            player.yellowMessage("Syntax: !travelrate <newrate>");
+            return;
+        }
+
+        int travelrate = Math.max(Integer.parseInt(params[0]), 1);
+        c.getWorldServer().setTravelRate(travelrate);
+        c.getWorldServer().broadcastPacket(MaplePacketCreator.serverNotice(6, "[Rate] Travel Rate has been changed to " + travelrate + "x."));
+    }
+}

src/client/command/commands/gm4/ZakumCommand.java

@@ -0,0 +1,44 @@
+/*
+    This file is part of the HeavenMS MapleStory Server, commands OdinMS-based
+    Copyleft (L) 2016 - 2018 RonanLana
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+   @Author: Arthur L - Refactored command content into modules
+*/
+package client.command.commands.gm4;
+
+import client.command.Command;
+import client.MapleClient;
+import client.MapleCharacter;
+import server.life.MapleLifeFactory;
+
+public class ZakumCommand extends Command {
+    {
+        setDescription("");
+    }
+
+    @Override
+    public void execute(MapleClient c, String[] params) {
+        MapleCharacter player = c.getPlayer();
+        player.getMap().spawnFakeMonsterOnGroundBelow(MapleLifeFactory.getMonster(8800000), player.getPosition());
+        for (int x = 8800003; x < 8800011; x++) {
+            player.getMap().spawnMonsterOnGroundBelow(MapleLifeFactory.getMonster(x), player.getPosition());
+        }
+    }
+}