193 lines
10 KiB
Java
193 lines
10 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_20_2to1_20.rewriter;
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import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
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import com.viaversion.viaversion.api.minecraft.entities.EntityType;
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import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_19_4;
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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_20;
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import com.viaversion.viaversion.api.type.types.version.Types1_20_2;
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import com.viaversion.viaversion.protocols.protocol1_19_4to1_19_3.ClientboundPackets1_19_4;
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import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.Protocol1_20_2To1_20;
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import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.packet.ClientboundPackets1_20_2;
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import com.viaversion.viaversion.protocols.protocol1_20_2to1_20.storage.ConfigurationState;
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import com.viaversion.viaversion.rewriter.EntityRewriter;
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public final class EntityPacketRewriter1_20_2 extends EntityRewriter<ClientboundPackets1_19_4, Protocol1_20_2To1_20> {
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public EntityPacketRewriter1_20_2(final Protocol1_20_2To1_20 protocol) {
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super(protocol);
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}
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@Override
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public void registerPackets() {
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registerTrackerWithData1_19(ClientboundPackets1_19_4.SPAWN_ENTITY, EntityTypes1_19_4.FALLING_BLOCK);
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registerMetadataRewriter(ClientboundPackets1_19_4.ENTITY_METADATA, Types1_20.METADATA_LIST, Types1_20_2.METADATA_LIST);
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registerRemoveEntities(ClientboundPackets1_19_4.REMOVE_ENTITIES);
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protocol.registerClientbound(ClientboundPackets1_19_4.SPAWN_PLAYER, ClientboundPackets1_20_2.SPAWN_ENTITY, wrapper -> {
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wrapper.passthrough(Type.VAR_INT); // Entity id
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wrapper.passthrough(Type.UUID); // UUID
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wrapper.write(Type.VAR_INT, EntityTypes1_19_4.PLAYER.getId()); // Entity type id
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wrapper.passthrough(Type.DOUBLE); // X
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wrapper.passthrough(Type.DOUBLE); // Y
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wrapper.passthrough(Type.DOUBLE); // Z
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final byte yaw = wrapper.read(Type.BYTE); // Yaw
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wrapper.passthrough(Type.BYTE); // Pitch
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wrapper.write(Type.BYTE, yaw);
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wrapper.write(Type.BYTE, yaw); // Head yaw
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wrapper.write(Type.VAR_INT, 0); // Data
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wrapper.write(Type.SHORT, (short) 0); // Velocity X
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wrapper.write(Type.SHORT, (short) 0); // Velocity Y
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wrapper.write(Type.SHORT, (short) 0); // Velocity Z
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});
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protocol.registerClientbound(ClientboundPackets1_19_4.JOIN_GAME, new PacketHandlers() {
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@Override
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public void register() {
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handler(wrapper -> {
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// Just reorder written data, move dimension data to configuration phase
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wrapper.passthrough(Type.INT); // Entity id
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wrapper.passthrough(Type.BOOLEAN); // Hardcore
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final byte gamemode = wrapper.read(Type.BYTE);
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final byte previousGamemode = wrapper.read(Type.BYTE);
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wrapper.passthrough(Type.STRING_ARRAY); // World List
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final CompoundTag dimensionRegistry = wrapper.read(Type.NAMED_COMPOUND_TAG);
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final String dimensionType = wrapper.read(Type.STRING);
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final String world = wrapper.read(Type.STRING);
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final long seed = wrapper.read(Type.LONG);
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trackBiomeSize(wrapper.user(), dimensionRegistry); // Caches dimensions to access data like height later
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cacheDimensionData(wrapper.user(), dimensionRegistry); // Tracks the amount of biomes sent for chunk data
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wrapper.passthrough(Type.VAR_INT); // Max players
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wrapper.passthrough(Type.VAR_INT); // View distance
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wrapper.passthrough(Type.VAR_INT); // Simulation distance
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wrapper.passthrough(Type.BOOLEAN); // Reduced debug info
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wrapper.passthrough(Type.BOOLEAN); // Show death screen
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wrapper.write(Type.BOOLEAN, false); // Limited crafting
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wrapper.write(Type.STRING, dimensionType);
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wrapper.write(Type.STRING, world);
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wrapper.write(Type.LONG, seed);
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wrapper.write(Type.BYTE, gamemode);
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wrapper.write(Type.BYTE, previousGamemode);
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// Debug, flat, last death pos, and portal cooldown at the end unchanged
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final ConfigurationState configurationBridge = wrapper.user().get(ConfigurationState.class);
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if (!configurationBridge.setLastDimensionRegistry(dimensionRegistry)) {
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// No change, so no need to re-enter the configuration state - just let this one through
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final PacketWrapper clientInformationPacket = configurationBridge.clientInformationPacket(wrapper.user());
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if (clientInformationPacket != null) {
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// Schedule the sending to ensure it arrives later, this fixes an issue where on
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// servers running < 1.20.2 a client changing servers on a proxy lost skin layers
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clientInformationPacket.scheduleSendToServer(Protocol1_20_2To1_20.class);
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}
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return;
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}
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if (configurationBridge.bridgePhase() == ConfigurationState.BridgePhase.NONE) {
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// Reenter the configuration state
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final PacketWrapper configurationPacket = wrapper.create(ClientboundPackets1_20_2.START_CONFIGURATION);
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configurationPacket.send(Protocol1_20_2To1_20.class);
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configurationBridge.setBridgePhase(ConfigurationState.BridgePhase.REENTERING_CONFIGURATION);
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configurationBridge.setJoinGamePacket(wrapper);
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wrapper.cancel();
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return;
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}
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// Queue it and send it after the client acks the configuration finish
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configurationBridge.setJoinGamePacket(wrapper);
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wrapper.cancel();
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Protocol1_20_2To1_20.sendConfigurationPackets(wrapper.user(), dimensionRegistry, null);
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});
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handler(worldDataTrackerHandlerByKey()); // Tracks world height and name for chunk data and entity (un)tracking
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}
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});
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protocol.registerClientbound(ClientboundPackets1_19_4.RESPAWN, new PacketHandlers() {
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@Override
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public void register() {
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handler(wrapper -> {
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wrapper.passthrough(Type.STRING); // Dimension type
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wrapper.passthrough(Type.STRING); // World
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wrapper.passthrough(Type.LONG); // Seed
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wrapper.write(Type.BYTE, wrapper.read(Type.UNSIGNED_BYTE).byteValue()); // Gamemode
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wrapper.passthrough(Type.BYTE); // Previous gamemode
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wrapper.passthrough(Type.BOOLEAN); // Debug
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wrapper.passthrough(Type.BOOLEAN); // Flat
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// Move this to the end
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final byte dataToKeep = wrapper.read(Type.BYTE);
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wrapper.passthrough(Type.OPTIONAL_GLOBAL_POSITION); // Last death position
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wrapper.passthrough(Type.VAR_INT); // Portal cooldown
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wrapper.write(Type.BYTE, dataToKeep);
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});
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handler(worldDataTrackerHandlerByKey()); // Tracks world height and name for chunk data and entity (un)tracking
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}
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});
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protocol.registerClientbound(ClientboundPackets1_19_4.ENTITY_EFFECT, wrapper -> {
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wrapper.passthrough(Type.VAR_INT); // Entity id
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wrapper.write(Type.VAR_INT, wrapper.read(Type.VAR_INT) - 1); // Effect id
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wrapper.passthrough(Type.BYTE); // Amplifier
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wrapper.passthrough(Type.VAR_INT); // Duration
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wrapper.passthrough(Type.BYTE); // Flags
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if (wrapper.passthrough(Type.BOOLEAN)) {
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wrapper.write(Type.COMPOUND_TAG, wrapper.read(Type.NAMED_COMPOUND_TAG)); // Factor data
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}
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});
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protocol.registerClientbound(ClientboundPackets1_19_4.REMOVE_ENTITY_EFFECT, wrapper -> {
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wrapper.passthrough(Type.VAR_INT); // Entity id
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wrapper.write(Type.VAR_INT, wrapper.read(Type.VAR_INT) - 1); // Effect id
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});
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}
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@Override
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protected void registerRewrites() {
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filter().mapMetaType(Types1_20_2.META_TYPES::byId);
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registerMetaTypeHandler(Types1_20_2.META_TYPES.itemType, Types1_20_2.META_TYPES.blockStateType, Types1_20_2.META_TYPES.optionalBlockStateType, Types1_20_2.META_TYPES.particleType);
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filter().type(EntityTypes1_19_4.DISPLAY).addIndex(10);
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filter().type(EntityTypes1_19_4.MINECART_ABSTRACT).index(11).handler((event, meta) -> {
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final int blockState = meta.value();
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meta.setValue(protocol.getMappingData().getNewBlockStateId(blockState));
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});
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}
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@Override
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public EntityType typeFromId(final int type) {
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return EntityTypes1_19_4.getTypeFromId(type);
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}
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}
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