mirror of https://github.com/GeyserMC/Geyser.git
89 lines
4.2 KiB
Java
89 lines
4.2 KiB
Java
/*
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* Copyright (c) 2019-2024 GeyserMC. http://geysermc.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @author GeyserMC
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* @link https://github.com/GeyserMC/Geyser
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*/
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package org.geysermc.geyser.translator.protocol.java.inventory;
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import com.github.steveice10.mc.protocol.data.game.inventory.ContainerType;
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import com.github.steveice10.mc.protocol.packet.ingame.clientbound.inventory.ClientboundOpenBookPacket;
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import com.github.steveice10.mc.protocol.packet.ingame.serverbound.inventory.ServerboundContainerClosePacket;
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import org.geysermc.geyser.inventory.GeyserItemStack;
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import org.geysermc.geyser.inventory.Inventory;
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import org.geysermc.geyser.inventory.LecternContainer;
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import org.geysermc.geyser.item.Items;
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import org.geysermc.geyser.network.GameProtocol;
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import org.geysermc.geyser.session.GeyserSession;
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import org.geysermc.geyser.translator.inventory.InventoryTranslator;
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import org.geysermc.geyser.translator.protocol.PacketTranslator;
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import org.geysermc.geyser.translator.protocol.Translator;
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import org.geysermc.geyser.util.InventoryUtils;
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import java.util.Objects;
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@Translator(packet = ClientboundOpenBookPacket.class)
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public class JavaOpenBookTranslator extends PacketTranslator<ClientboundOpenBookPacket> {
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/**
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* Unlike other fake inventories that rely on placing blocks in the world;
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* the virtual lectern workaround for books isn't triggered the same way.
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* Specifically, we don't get a window id - hence, we just use our own!
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*/
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private final static int FAKE_LECTERN_WINDOW_ID = -69;
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@Override
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public void translate(GeyserSession session, ClientboundOpenBookPacket packet) {
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GeyserItemStack stack = session.getPlayerInventory().getItemInHand();
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// Don't spawn a fake lectern for books already opened "normally" by the client.
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if (stack.getItemData(session).equals(session.getCurrentBook())) {
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session.setCurrentBook(null);
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return;
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}
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// Only post 1.20.60 is it possible to tell the client to open a lectern.
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if (!GameProtocol.is1_20_60orHigher(session.getUpstream().getProtocolVersion())) {
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return;
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}
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if (stack.asItem().equals(Items.WRITTEN_BOOK)) {
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Inventory openInventory = session.getOpenInventory();
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if (openInventory != null) {
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InventoryUtils.closeInventory(session, openInventory.getJavaId(), true);
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ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(openInventory.getJavaId());
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session.sendDownstreamGamePacket(closeWindowPacket);
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}
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InventoryTranslator translator = InventoryTranslator.inventoryTranslator(ContainerType.LECTERN);
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session.setInventoryTranslator(translator);
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// Should never be null
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Objects.requireNonNull(translator, "lectern translator must exist");
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Inventory inventory = translator.createInventory("", FAKE_LECTERN_WINDOW_ID, ContainerType.LECTERN, session.getPlayerInventory());
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((LecternContainer) inventory).setFakeLecternBook(stack, session);
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InventoryUtils.openInventory(session, inventory);
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}
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}
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}
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