Java tutorial
/* * This program is free software: you can redistribute it and/or modify it under * the terms of the GNU General Public License as published by the Free Software * Foundation, either version 3 of the License, or (at your option) any later version. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package lineage2.gameserver.network.clientpackets; import lineage2.commons.math.SafeMath; import lineage2.gameserver.Config; import lineage2.gameserver.model.Creature; import lineage2.gameserver.model.Player; import lineage2.gameserver.model.instances.NpcInstance; import lineage2.gameserver.model.items.ItemInstance; import lineage2.gameserver.model.items.PcFreight; import lineage2.gameserver.model.items.PcInventory; import lineage2.gameserver.network.serverpackets.components.SystemMsg; import lineage2.gameserver.templates.item.ItemTemplate; import lineage2.gameserver.utils.Log; import org.apache.commons.lang3.ArrayUtils; /** * @author Mobius * @version $Revision: 1.0 $ */ public class RequestPackageSend extends L2GameClientPacket { /** * Field _FREIGHT_FEE. (value is 1000) */ private static final long _FREIGHT_FEE = 1000; /** * Field _objectId. */ private int _objectId; /** * Field _count. */ private int _count; /** * Field _items. */ private int[] _items; /** * Field _itemQ. */ private long[] _itemQ; /** * Method readImpl. */ @Override protected void readImpl() { _objectId = readD(); _count = readD(); if (((_count * 12) > _buf.remaining()) || (_count > Short.MAX_VALUE) || (_count < 1)) { _count = 0; return; } _items = new int[_count]; _itemQ = new long[_count]; for (int i = 0; i < _count; i++) { _items[i] = readD(); _itemQ[i] = readQ(); if ((_itemQ[i] < 1) || (ArrayUtils.indexOf(_items, _items[i]) < i)) { _count = 0; return; } } } /** * Method runImpl. */ @Override protected void runImpl() { Player player = getClient().getActiveChar(); if ((player == null) || (_count == 0)) { return; } if (!player.getPlayerAccess().UseWarehouse) { player.sendActionFailed(); return; } if (player.isActionsDisabled()) { player.sendActionFailed(); return; } if (player.isInStoreMode()) { player.sendPacket( SystemMsg.WHILE_OPERATING_A_PRIVATE_STORE_OR_WORKSHOP_YOU_CANNOT_DISCARD_DESTROY_OR_TRADE_AN_ITEM); return; } if (player.isInTrade()) { player.sendActionFailed(); return; } NpcInstance whkeeper = player.getLastNpc(); if ((whkeeper == null) || !player.isInRangeZ(whkeeper, Creature.INTERACTION_DISTANCE)) { return; } if (!player.getAccountChars().containsKey(_objectId)) { return; } PcInventory inventory = player.getInventory(); PcFreight freight = new PcFreight(_objectId); freight.restore(); inventory.writeLock(); freight.writeLock(); try { int slotsleft = 0; long adenaDeposit = 0; slotsleft = Config.FREIGHT_SLOTS - freight.getSize(); int items = 0; for (int i = 0; i < _count; i++) { ItemInstance item = inventory.getItemByObjectId(_items[i]); if ((item == null) || (item.getCount() < _itemQ[i]) || !item.getTemplate().isFreightable()) { _items[i] = 0; _itemQ[i] = 0L; continue; } if (!item.isStackable() || (freight.getItemByItemId(item.getItemId()) == null)) { if (slotsleft <= 0) { _items[i] = 0; _itemQ[i] = 0L; continue; } slotsleft--; } if (item.getItemId() == ItemTemplate.ITEM_ID_ADENA) { adenaDeposit = _itemQ[i]; } items++; } if (slotsleft <= 0) { player.sendPacket(SystemMsg.YOU_HAVE_EXCEEDED_THE_QUANTITY_THAT_CAN_BE_INPUTTED); } if (items == 0) { player.sendPacket(SystemMsg.INCORRECT_ITEM_COUNT); return; } long fee = SafeMath.mulAndCheck(items, _FREIGHT_FEE); if ((fee + adenaDeposit) > player.getAdena()) { player.sendPacket(SystemMsg.YOU_LACK_THE_FUNDS_NEEDED_TO_PAY_FOR_THIS_TRANSACTION); return; } if (!player.reduceAdena(fee, true)) { player.sendPacket(SystemMsg.YOU_DO_NOT_HAVE_ENOUGH_ADENA); return; } for (int i = 0; i < _count; i++) { if (_items[i] == 0) { continue; } ItemInstance item = inventory.removeItemByObjectId(_items[i], _itemQ[i]); Log.LogItem(player, Log.FreightDeposit, item); freight.addItem(item); } } catch (ArithmeticException ae) { player.sendPacket(SystemMsg.YOU_HAVE_EXCEEDED_THE_QUANTITY_THAT_CAN_BE_INPUTTED); return; } finally { freight.writeUnlock(); inventory.writeUnlock(); } player.sendChanges(); player.sendPacket(SystemMsg.THE_TRANSACTION_IS_COMPLETE); } }