187 lines
8.2 KiB
Java
187 lines
8.2 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2024 ViaVersion and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.viaversion.viaversion.protocols.protocol1_17to1_16_4.packets;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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import com.github.steveice10.opennbt.tag.builtin.IntTag;
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import com.github.steveice10.opennbt.tag.builtin.ListTag;
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import com.github.steveice10.opennbt.tag.builtin.Tag;
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import com.viaversion.viaversion.api.data.entity.EntityTracker;
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import com.viaversion.viaversion.api.minecraft.entities.EntityType;
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import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_16_2;
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import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_17;
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import com.viaversion.viaversion.api.protocol.packet.ClientboundPacketType;
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import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
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import com.viaversion.viaversion.api.type.Type;
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import com.viaversion.viaversion.api.type.types.version.Types1_16;
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import com.viaversion.viaversion.api.type.types.version.Types1_17;
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import com.viaversion.viaversion.protocols.protocol1_16_2to1_16_1.ClientboundPackets1_16_2;
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import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.ClientboundPackets1_17;
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import com.viaversion.viaversion.protocols.protocol1_17to1_16_4.Protocol1_17To1_16_4;
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import com.viaversion.viaversion.rewriter.EntityRewriter;
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public final class EntityPackets extends EntityRewriter<ClientboundPackets1_16_2, Protocol1_17To1_16_4> {
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public EntityPackets(Protocol1_17To1_16_4 protocol) {
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super(protocol);
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mapTypes(EntityTypes1_16_2.values(), EntityTypes1_17.class);
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}
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@Override
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public void registerPackets() {
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registerTrackerWithData(ClientboundPackets1_16_2.SPAWN_ENTITY, EntityTypes1_17.FALLING_BLOCK);
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registerTracker(ClientboundPackets1_16_2.SPAWN_MOB);
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registerTracker(ClientboundPackets1_16_2.SPAWN_PLAYER, EntityTypes1_17.PLAYER);
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registerMetadataRewriter(ClientboundPackets1_16_2.ENTITY_METADATA, Types1_16.METADATA_LIST, Types1_17.METADATA_LIST);
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protocol.registerClientbound(ClientboundPackets1_16_2.DESTROY_ENTITIES, null, wrapper -> {
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int[] entityIds = wrapper.read(Type.VAR_INT_ARRAY_PRIMITIVE);
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wrapper.cancel();
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EntityTracker entityTracker = wrapper.user().getEntityTracker(Protocol1_17To1_16_4.class);
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for (int entityId : entityIds) {
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entityTracker.removeEntity(entityId);
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// Send individual remove packets
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PacketWrapper newPacket = wrapper.create(ClientboundPackets1_17.REMOVE_ENTITY);
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newPacket.write(Type.VAR_INT, entityId);
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newPacket.send(Protocol1_17To1_16_4.class);
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}
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});
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protocol.registerClientbound(ClientboundPackets1_16_2.JOIN_GAME, new PacketHandlers() {
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@Override
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public void register() {
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map(Type.INT); // Entity ID
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map(Type.BOOLEAN); // Hardcore
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map(Type.BYTE); // Gamemode
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map(Type.BYTE); // Previous Gamemode
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map(Type.STRING_ARRAY); // World List
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map(Type.NAMED_COMPOUND_TAG); // Registry
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map(Type.NAMED_COMPOUND_TAG); // Current dimension
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handler(wrapper -> {
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// Add new dimension fields
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CompoundTag dimensionRegistry = wrapper.get(Type.NAMED_COMPOUND_TAG, 0).get("minecraft:dimension_type");
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ListTag dimensions = dimensionRegistry.get("value");
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for (Tag dimension : dimensions) {
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CompoundTag dimensionCompound = ((CompoundTag) dimension).get("element");
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addNewDimensionData(dimensionCompound);
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}
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CompoundTag currentDimensionTag = wrapper.get(Type.NAMED_COMPOUND_TAG, 1);
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addNewDimensionData(currentDimensionTag);
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});
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handler(playerTrackerHandler());
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}
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});
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protocol.registerClientbound(ClientboundPackets1_16_2.RESPAWN, wrapper -> {
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CompoundTag dimensionData = wrapper.passthrough(Type.NAMED_COMPOUND_TAG);
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addNewDimensionData(dimensionData);
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});
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protocol.registerClientbound(ClientboundPackets1_16_2.ENTITY_PROPERTIES, new PacketHandlers() {
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@Override
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public void register() {
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map(Type.VAR_INT); // Entity id
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handler(wrapper -> {
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// Collection length is now a var int
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wrapper.write(Type.VAR_INT, wrapper.read(Type.INT));
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});
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}
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});
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protocol.registerClientbound(ClientboundPackets1_16_2.PLAYER_POSITION, new PacketHandlers() {
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@Override
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public void register() {
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map(Type.DOUBLE);
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map(Type.DOUBLE);
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map(Type.DOUBLE);
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map(Type.FLOAT);
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map(Type.FLOAT);
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map(Type.BYTE);
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map(Type.VAR_INT);
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handler(wrapper -> {
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// Dismount vehicle
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wrapper.write(Type.BOOLEAN, false);
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});
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}
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});
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protocol.registerClientbound(ClientboundPackets1_16_2.COMBAT_EVENT, null, wrapper -> {
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// Combat packet actions have been split into individual packets (the content hasn't changed)
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int type = wrapper.read(Type.VAR_INT);
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ClientboundPacketType packetType;
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switch (type) {
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case 0:
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packetType = ClientboundPackets1_17.COMBAT_ENTER;
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break;
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case 1:
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packetType = ClientboundPackets1_17.COMBAT_END;
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break;
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case 2:
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packetType = ClientboundPackets1_17.COMBAT_KILL;
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break;
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default:
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throw new IllegalArgumentException("Invalid combat type received: " + type);
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}
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wrapper.setPacketType(packetType);
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});
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// The parent class of the other entity move packets that is never actually used has finally been removed from the id list
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protocol.cancelClientbound(ClientboundPackets1_16_2.ENTITY_MOVEMENT);
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}
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@Override
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protected void registerRewrites() {
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filter().mapMetaType(Types1_17.META_TYPES::byId);
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filter().metaType(Types1_17.META_TYPES.poseType).handler((event, meta) -> {
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int pose = meta.value();
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if (pose > 5) {
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// Added LONG_JUMP at 6
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meta.setValue(pose + 1);
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}
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});
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registerMetaTypeHandler(Types1_17.META_TYPES.itemType, Types1_17.META_TYPES.blockStateType, null, Types1_17.META_TYPES.particleType);
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// Ticks frozen added with id 7
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filter().type(EntityTypes1_17.ENTITY).addIndex(7);
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filter().type(EntityTypes1_17.MINECART_ABSTRACT).index(11).handler((event, meta) -> {
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// Convert to new block id
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int data = (int) meta.getValue();
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meta.setValue(protocol.getMappingData().getNewBlockStateId(data));
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});
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// Attachment position removed
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filter().type(EntityTypes1_17.SHULKER).removeIndex(17);
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}
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@Override
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public EntityType typeFromId(int type) {
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return EntityTypes1_17.getTypeFromId(type);
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}
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private static void addNewDimensionData(CompoundTag tag) {
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tag.put("min_y", new IntTag(0));
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tag.put("height", new IntTag(256));
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}
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}
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