mirror of https://github.com/GeyserMC/Geyser.git
219 lines
11 KiB
Java
219 lines
11 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 org.cloudburstmc.math.vector.Vector3i;
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import org.cloudburstmc.nbt.NbtMap;
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import org.cloudburstmc.nbt.NbtMapBuilder;
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import org.cloudburstmc.nbt.NbtType;
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import org.cloudburstmc.protocol.bedrock.data.inventory.ItemData;
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import org.geysermc.erosion.util.LecternUtils;
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import org.geysermc.geyser.GeyserImpl;
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import org.geysermc.geyser.inventory.Container;
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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.inventory.updater.ContainerInventoryUpdater;
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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.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 AbstractBlockInventoryTranslator {
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/**
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* Hack: Java opens a lectern first, and then follows it up with a ClientboundContainerSetContentPacket
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* to actually send the book's contents. We delay opening the inventory until the book was sent.
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*/
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private boolean initialized = false;
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public LecternInventoryTranslator() {
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super(1, "minecraft:lectern[facing=north,has_book=true,powered=true]", org.cloudburstmc.protocol.bedrock.data.inventory.ContainerType.LECTERN , ContainerInventoryUpdater.INSTANCE);
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}
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@Override
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public boolean prepareInventory(GeyserSession session, Inventory inventory) {
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super.prepareInventory(session, inventory);
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if (((Container) inventory).isUsingRealBlock()) {
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initialized = false; // We have to wait until we get the book to show to the client
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} else {
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updateBook(session, inventory, inventory.getItem(0)); // See JavaOpenBookTranslator; placed here manually
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initialized = true;
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}
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return true;
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}
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@Override
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public void openInventory(GeyserSession session, Inventory inventory) {
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// Hacky, but we're dealing with LECTERNS! It cannot not be hacky.
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// "initialized" indicates whether we've received the book from the Java server yet.
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// dropping lectern book is the fun workaround when we have to enter the gui to drop the book.
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// Since we leave it immediately... don't open it!
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if (initialized && !session.isDroppingLecternBook()) {
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super.openInventory(session, inventory);
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}
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}
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@Override
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public void closeInventory(GeyserSession session, Inventory inventory) {
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// Of course, sending a simple ContainerClosePacket, or even breaking the block doesn't work to close a lectern.
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// Heck, the latter crashes the client xd
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// BDS just sends an empty base lectern tag... that kicks out the client. Fine. Let's do that!
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LecternContainer lecternContainer = (LecternContainer) inventory;
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Vector3i position = lecternContainer.isUsingRealBlock() ? session.getLastInteractionBlockPosition() : inventory.getHolderPosition();
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var baseLecternTag = LecternUtils.getBaseLecternTag(position.getX(), position.getY(), position.getZ(), 0);
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BlockEntityUtils.updateBlockEntity(session, baseLecternTag.build(), position);
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super.closeInventory(session, inventory); // Removes the fake blocks if need be
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// Now: Restore the lectern, if it actually exists
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if (lecternContainer.isUsingRealBlock()) {
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GeyserImpl.getInstance().getWorldManager().sendLecternData(session, position.getX(), position.getY(), position.getZ());
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}
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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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boolean isDropping = session.isDroppingLecternBook();
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updateBook(session, inventory, itemStack);
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if (!initialized && !isDropping) {
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initialized = true;
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openInventory(session, inventory);
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}
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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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// If we're not in a real lectern, the Java server thinks we are still in the player inventory.
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if (((LecternContainer) inventory).isFakeLectern()) {
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InventoryTranslator.PLAYER_INVENTORY_TRANSLATOR.updateSlot(session, session.getPlayerInventory(), slot);
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return;
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}
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super.updateSlot(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.getJavaId(), 3);
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session.sendDownstreamGamePacket(packet);
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session.setDroppingLecternBook(false);
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InventoryUtils.closeInventory(session, inventory.getJavaId(), false);
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} else if (lecternContainer.getBlockEntityTag() == null) {
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CompoundTag tag = book.getNbt();
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Vector3i position = lecternContainer.isUsingRealBlock() ? session.getLastInteractionBlockPosition() : inventory.getHolderPosition();
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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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// TODO: yeet after 1.20.60 is minimum supported version
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boolean shouldRefresh = !session.getGeyser().getWorldManager().shouldExpectLecternHandled(session)
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&& !session.getLecternCache().contains(position)
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&& !GameProtocol.is1_20_60orHigher(session.getUpstream().getProtocolVersion());
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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 = LecternUtils.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 = LecternUtils.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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BlockEntityUtils.updateBlockEntity(session, blockEntityTag, position);
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if (shouldRefresh) {
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// the lectern cache doesn't always exist; only when we must refresh
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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.getJavaId());
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session.sendDownstreamGamePacket(closeWindowPacket);
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InventoryUtils.closeInventory(session, inventory.getJavaId(), 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 + playerInventory.getSize(), containerType, playerInventory);
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}
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}
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