mirror of
https://github.com/GeyserMC/Geyser.git
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180 lines
8.6 KiB
Java
180 lines
8.6 KiB
Java
/*
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* Copyright (c) 2019-2022 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.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.serverbound.inventory.ServerboundContainerButtonClickPacket;
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import com.github.steveice10.mc.protocol.packet.ingame.serverbound.inventory.ServerboundContainerClosePacket;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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import com.github.steveice10.opennbt.tag.builtin.ListTag;
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import com.nukkitx.math.vector.Vector3i;
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import com.nukkitx.nbt.NbtMap;
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import com.nukkitx.nbt.NbtMapBuilder;
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import com.nukkitx.nbt.NbtType;
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import com.nukkitx.protocol.bedrock.data.inventory.ItemData;
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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.inventory.PlayerInventory;
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import org.geysermc.geyser.session.GeyserSession;
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import org.geysermc.geyser.inventory.updater.InventoryUpdater;
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import org.geysermc.geyser.util.BlockEntityUtils;
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import org.geysermc.geyser.util.InventoryUtils;
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import java.util.Collections;
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public class LecternInventoryTranslator extends BaseInventoryTranslator {
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private final InventoryUpdater updater;
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public LecternInventoryTranslator() {
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super(1);
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this.updater = new InventoryUpdater();
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}
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@Override
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public void prepareInventory(GeyserSession session, Inventory inventory) {
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}
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@Override
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public void openInventory(GeyserSession session, Inventory inventory) {
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}
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@Override
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public void closeInventory(GeyserSession session, Inventory inventory) {
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}
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@Override
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public void updateProperty(GeyserSession session, Inventory inventory, int key, int value) {
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if (key == 0) { // Lectern page update
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LecternContainer lecternContainer = (LecternContainer) inventory;
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lecternContainer.setCurrentBedrockPage(value / 2);
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lecternContainer.setBlockEntityTag(lecternContainer.getBlockEntityTag().toBuilder().putInt("page", lecternContainer.getCurrentBedrockPage()).build());
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BlockEntityUtils.updateBlockEntity(session, lecternContainer.getBlockEntityTag(), lecternContainer.getPosition());
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}
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}
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@Override
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public void updateInventory(GeyserSession session, Inventory inventory) {
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GeyserItemStack itemStack = inventory.getItem(0);
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if (!itemStack.isEmpty()) {
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updateBook(session, inventory, itemStack);
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}
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}
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@Override
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public void updateSlot(GeyserSession session, Inventory inventory, int slot) {
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this.updater.updateSlot(this, session, inventory, slot);
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if (slot == 0) {
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updateBook(session, inventory, inventory.getItem(0));
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}
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}
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/**
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* Translate the data of the book in the lectern into a block entity tag.
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*/
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private void updateBook(GeyserSession session, Inventory inventory, GeyserItemStack book) {
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LecternContainer lecternContainer = (LecternContainer) inventory;
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if (session.isDroppingLecternBook()) {
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// We have to enter the inventory GUI to eject the book
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ServerboundContainerButtonClickPacket packet = new ServerboundContainerButtonClickPacket(inventory.getId(), 3);
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session.sendDownstreamPacket(packet);
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session.setDroppingLecternBook(false);
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InventoryUtils.closeInventory(session, inventory.getId(), false);
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} else if (lecternContainer.getBlockEntityTag() == null) {
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CompoundTag tag = book.getNbt();
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// Position has to be the last interacted position... right?
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Vector3i position = session.getLastInteractionBlockPosition();
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// If shouldExpectLecternHandled returns true, this is already handled for us
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// shouldRefresh means that we should boot out the client on our side because their lectern GUI isn't updated yet
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boolean shouldRefresh = !session.getGeyser().getWorldManager().shouldExpectLecternHandled() && !session.getLecternCache().contains(position);
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NbtMap blockEntityTag;
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if (tag != null) {
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int pagesSize = ((ListTag) tag.get("pages")).size();
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ItemData itemData = book.getItemData(session);
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NbtMapBuilder lecternTag = getBaseLecternTag(position.getX(), position.getY(), position.getZ(), pagesSize);
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lecternTag.putCompound("book", NbtMap.builder()
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.putByte("Count", (byte) itemData.getCount())
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.putShort("Damage", (short) 0)
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.putString("Name", "minecraft:written_book")
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.putCompound("tag", itemData.getTag())
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.build());
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lecternTag.putInt("page", lecternContainer.getCurrentBedrockPage());
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blockEntityTag = lecternTag.build();
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} else {
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// There is *a* book here, but... no NBT.
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NbtMapBuilder lecternTag = getBaseLecternTag(position.getX(), position.getY(), position.getZ(), 1);
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NbtMapBuilder bookTag = NbtMap.builder()
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.putByte("Count", (byte) 1)
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.putShort("Damage", (short) 0)
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.putString("Name", "minecraft:writable_book")
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.putCompound("tag", NbtMap.builder().putList("pages", NbtType.COMPOUND, Collections.singletonList(
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NbtMap.builder()
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.putString("photoname", "")
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.putString("text", "")
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.build()
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)).build());
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blockEntityTag = lecternTag.putCompound("book", bookTag.build()).build();
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}
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// Even with serverside access to lecterns, we don't easily know which lectern this is, so we need to rebuild
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// the block entity tag
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lecternContainer.setBlockEntityTag(blockEntityTag);
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lecternContainer.setPosition(position);
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if (shouldRefresh) {
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// Update the lectern because it's not updated client-side
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BlockEntityUtils.updateBlockEntity(session, blockEntityTag, position);
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session.getLecternCache().add(position);
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// Close the window - we will reopen it once the client has this data synced
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ServerboundContainerClosePacket closeWindowPacket = new ServerboundContainerClosePacket(lecternContainer.getId());
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session.sendDownstreamPacket(closeWindowPacket);
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InventoryUtils.closeInventory(session, inventory.getId(), false);
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}
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}
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}
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@Override
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public Inventory createInventory(String name, int windowId, ContainerType containerType, PlayerInventory playerInventory) {
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return new LecternContainer(name, windowId, this.size, containerType, playerInventory);
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}
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public static NbtMapBuilder getBaseLecternTag(int x, int y, int z, int totalPages) {
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NbtMapBuilder builder = NbtMap.builder()
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.putInt("x", x)
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.putInt("y", y)
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.putInt("z", z)
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.putString("id", "Lectern");
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if (totalPages != 0) {
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builder.putByte("hasBook", (byte) 1);
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builder.putInt("totalPages", totalPages);
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} else {
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// Not usually needed, but helps with kicking out Bedrock players from reading the UI
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builder.putByte("hasBook", (byte) 0);
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}
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return builder;
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}
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}
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