mirror of
https://github.com/GeyserMC/Geyser.git
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167 lines
5.9 KiB
Java
167 lines
5.9 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.inventory;
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import com.github.steveice10.mc.protocol.data.game.inventory.ContainerType;
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import com.github.steveice10.opennbt.tag.builtin.ByteTag;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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import com.github.steveice10.opennbt.tag.builtin.Tag;
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import com.nukkitx.math.vector.Vector3i;
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import lombok.Getter;
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import lombok.Setter;
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import lombok.ToString;
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import org.geysermc.geyser.GeyserImpl;
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import org.geysermc.geyser.session.GeyserSession;
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import org.geysermc.geyser.translator.inventory.item.ItemTranslator;
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import org.jetbrains.annotations.Range;
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import javax.annotation.Nonnull;
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import java.util.Arrays;
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@ToString
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public abstract class Inventory {
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@Getter
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protected final int javaId;
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/**
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* The Java inventory state ID from the server. As of Java Edition 1.18.1 this value has one instance per player.
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* If this is out of sync with the server when a packet containing it is handled, the server will resync items.
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* This field has existed since Java Edition 1.17.1.
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*/
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@Getter
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@Setter
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private int stateId;
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/**
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* See {@link org.geysermc.geyser.inventory.click.ClickPlan#execute(boolean)}; used as a hack
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*/
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@Getter
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private int nextStateId = -1;
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@Getter
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protected final int size;
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/**
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* Used for smooth transitions between two windows of the same type.
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*/
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@Getter
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protected final ContainerType containerType;
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@Getter
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protected final String title;
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protected final GeyserItemStack[] items;
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/**
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* The location of the inventory block. Will either be a fake block above the player's head, or the actual block location
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*/
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@Getter
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@Setter
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protected Vector3i holderPosition = Vector3i.ZERO;
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@Getter
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@Setter
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protected long holderId = -1;
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@Getter
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@Setter
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private boolean pending = false;
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protected Inventory(int id, int size, ContainerType containerType) {
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this("Inventory", id, size, containerType);
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}
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protected Inventory(String title, int javaId, int size, ContainerType containerType) {
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this.title = title;
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this.javaId = javaId;
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this.size = size;
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this.containerType = containerType;
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this.items = new GeyserItemStack[size];
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Arrays.fill(items, GeyserItemStack.EMPTY);
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}
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// This is to prevent conflicts with special bedrock inventory IDs.
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// The vanilla java server only sends an ID between 1 and 100 when opening an inventory,
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// so this is rarely needed. (certain plugins)
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// Example: https://github.com/GeyserMC/Geyser/issues/3254
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public int getBedrockId() {
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return javaId <= 100 ? javaId : (javaId % 100) + 1;
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}
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public GeyserItemStack getItem(int slot) {
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if (slot > this.size) {
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GeyserImpl.getInstance().getLogger().debug("Tried to get an item out of bounds! " + this);
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return GeyserItemStack.EMPTY;
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}
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return items[slot];
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}
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public abstract int getOffsetForHotbar(@Range(from = 0, to = 8) int slot);
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public void setItem(int slot, @Nonnull GeyserItemStack newItem, GeyserSession session) {
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if (slot > this.size) {
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session.getGeyser().getLogger().debug("Tried to set an item out of bounds! " + this);
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return;
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}
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GeyserItemStack oldItem = items[slot];
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updateItemNetId(oldItem, newItem, session);
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items[slot] = newItem;
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// Lodestone caching
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if (newItem.getJavaId() == session.getItemMappings().getStoredItems().compass().getJavaId()) {
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CompoundTag nbt = newItem.getNbt();
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if (nbt != null) {
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Tag lodestoneTag = nbt.get("LodestoneTracked");
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if (lodestoneTag instanceof ByteTag) {
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session.getLodestoneCache().cacheInventoryItem(newItem);
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}
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}
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}
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}
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protected void updateItemNetId(GeyserItemStack oldItem, GeyserItemStack newItem, GeyserSession session) {
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if (!newItem.isEmpty()) {
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int oldMapping = ItemTranslator.getBedrockItemId(session, oldItem);
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int newMapping = ItemTranslator.getBedrockItemId(session, newItem);
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if (oldMapping == newMapping) {
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newItem.setNetId(oldItem.getNetId());
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} else {
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newItem.setNetId(session.getNextItemNetId());
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}
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}
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}
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/**
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* See {@link org.geysermc.geyser.inventory.click.ClickPlan#execute(boolean)} for more details.
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*/
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public void incrementStateId(int count) {
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// nextStateId == -1 means that it was not needed until now
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nextStateId = (nextStateId == -1 ? stateId : nextStateId) + count & Short.MAX_VALUE;
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}
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public void resetNextStateId() {
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nextStateId = -1;
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}
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}
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