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/* |
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* This file is part of Araknemu. |
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* |
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* Araknemu is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* Araknemu 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 Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with Araknemu. If not, see <https://www.gnu.org/licenses/>. |
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* |
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* Copyright (c) 2017-2020 Vincent Quatrevieux |
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*/ |
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package fr.quatrevieux.araknemu.game.handler.account; |
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import fr.quatrevieux.araknemu.common.session.SessionLog; |
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import fr.quatrevieux.araknemu.core.dbal.repository.EntityNotFoundException; |
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import fr.quatrevieux.araknemu.core.network.exception.CloseWithPacket; |
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import fr.quatrevieux.araknemu.core.network.parser.PacketHandler; |
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import fr.quatrevieux.araknemu.game.player.GamePlayer; |
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import fr.quatrevieux.araknemu.game.player.PlayerService; |
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import fr.quatrevieux.araknemu.game.player.event.GameJoined; |
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import fr.quatrevieux.araknemu.network.game.GameSession; |
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import fr.quatrevieux.araknemu.network.game.in.account.ChoosePlayingCharacter; |
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import fr.quatrevieux.araknemu.network.game.out.account.CharacterSelected; |
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import fr.quatrevieux.araknemu.network.game.out.account.CharacterSelectionError; |
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import fr.quatrevieux.araknemu.network.game.out.info.Error; |
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import fr.quatrevieux.araknemu.network.game.out.info.Information; |
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/** |
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* Handle character select for entering game |
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*/ |
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public final class SelectCharacter implements PacketHandler<GameSession, ChoosePlayingCharacter> { |
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private final PlayerService service; |
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public SelectCharacter(PlayerService service) { |
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this.service = service; |
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} |
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@Override |
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@SuppressWarnings("contracts.precondition") // Cannot prove that account is not null here |
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public void handle(GameSession session, ChoosePlayingCharacter packet) { |
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final GamePlayer player; |
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synchronized (session) { |
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if (session.player() != null) { |
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throw new CloseWithPacket(new CharacterSelectionError()); |
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} |
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try { |
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player = service.load(session, packet.id()); |
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player.register(session); |
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} catch (EntityNotFoundException e) { |
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throw new CloseWithPacket(new CharacterSelectionError()); |
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} |
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} |
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session.send(new CharacterSelected(player)); |
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player.dispatch(new GameJoined()); |
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session.log().ifPresent(log -> log.setPlayerId(player.id())); |
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session.send(Error.welcome()); |
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session.log().flatMap(SessionLog::last).ifPresent(log -> session.send(Information.lastLogin(log.startDate(), log.ipAddress()))); |
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session.send(Information.currentIpAddress(session.channel().address().getAddress().getHostAddress())); |
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} |
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@Override |
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public Class<ChoosePlayingCharacter> packet() { |
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return ChoosePlayingCharacter.class; |
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} |
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} |
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Arakne /
Araknemu
For an in-depth explanation of how locks work, you may refer to Chapter 20 Thread Synchronization of Inside the Java Virtual Machine by Bill Venners available online.