Arakne / Araknemu

 * This file is part of Araknemu.

 *

 * Araknemu is free software: you can redistribute it and/or modify

 * it under the terms of the GNU Lesser General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * Araknemu 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 Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License

 * along with Araknemu.  If not, see <https://www.gnu.org/licenses/>.

 *

 * Copyright (c) 2017-2019 Vincent Quatrevieux

 */

package fr.quatrevieux.araknemu.game.handler.dialog;

import fr.quatrevieux.araknemu.core.network.exception.ErrorPacket;

import fr.quatrevieux.araknemu.core.network.parser.PacketHandler;

import fr.quatrevieux.araknemu.game.exploration.ExplorationPlayer;

import fr.quatrevieux.araknemu.game.exploration.creature.Operation;

import fr.quatrevieux.araknemu.game.exploration.interaction.dialog.NpcDialog;

import fr.quatrevieux.araknemu.game.exploration.map.ExplorationMap;

import fr.quatrevieux.araknemu.game.exploration.npc.GameNpc;

import fr.quatrevieux.araknemu.network.game.GameSession;

import fr.quatrevieux.araknemu.network.game.in.dialog.CreateDialogRequest;

import fr.quatrevieux.araknemu.network.game.out.basic.Noop;

import org.checkerframework.checker.nullness.util.NullnessUtil;

/**

 * Start a new dialog with NPC

 */

public final class StartDialog implements PacketHandler<GameSession, CreateDialogRequest> {

    @Override

    public void handle(GameSession session, CreateDialogRequest packet) {

        final ExplorationPlayer exploration = NullnessUtil.castNonNull(session.exploration());

        final ExplorationMap map = exploration.map();

        if (map == null) {

            throw new ErrorPacket(new Noop());

        }

        map.creature(packet.npcId()).apply(new Operation<Void>() {

            @Override

            public Void onExplorationPlayer(ExplorationPlayer player) {

                throw new IllegalArgumentException("Cannot start a dialog with a player");

            }

        });

    }

    @Override

    public Class<CreateDialogRequest> packet() {

        return CreateDialogRequest.class;

    }

}