164 lines
8.3 KiB
Java
164 lines
8.3 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_20to1_19_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.FloatTag;
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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.StringTag;
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import com.github.steveice10.opennbt.tag.builtin.Tag;
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import com.viaversion.viaversion.api.minecraft.Quaternion;
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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.minecraft.metadata.Metadata;
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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_19_4;
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import com.viaversion.viaversion.api.type.types.version.Types1_20;
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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_20to1_19_4.Protocol1_20To1_19_4;
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import com.viaversion.viaversion.rewriter.EntityRewriter;
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public final class EntityPackets extends EntityRewriter<ClientboundPackets1_19_4, Protocol1_20To1_19_4> {
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private static final Quaternion Y_FLIPPED_ROTATION = new Quaternion(0, 1, 0, 0);
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public EntityPackets(final Protocol1_20To1_19_4 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_19_4.METADATA_LIST, Types1_20.METADATA_LIST);
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registerRemoveEntities(ClientboundPackets1_19_4.REMOVE_ENTITIES);
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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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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); // Dimension registry
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map(Type.STRING); // Dimension key
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map(Type.STRING); // World
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map(Type.LONG); // Seed
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map(Type.VAR_INT); // Max players
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map(Type.VAR_INT); // Chunk radius
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map(Type.VAR_INT); // Simulation distance
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map(Type.BOOLEAN); // Reduced debug info
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map(Type.BOOLEAN); // Show death screen
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map(Type.BOOLEAN); // Debug
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map(Type.BOOLEAN); // Flat
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map(Type.OPTIONAL_GLOBAL_POSITION); // Last death location
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create(Type.VAR_INT, 0); // Portal cooldown
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handler(dimensionDataHandler()); // Caches dimensions to access data like height later
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handler(biomeSizeTracker()); // Tracks the amount of biomes sent for chunk data
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handler(worldDataTrackerHandlerByKey()); // Tracks world height and name for chunk data and entity (un)tracking
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handler(wrapper -> {
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final CompoundTag registry = wrapper.get(Type.NAMED_COMPOUND_TAG, 0);
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final CompoundTag damageTypeRegistry = registry.get("minecraft:damage_type");
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final ListTag<CompoundTag> damageTypes = damageTypeRegistry.get("value");
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int highestId = -1;
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for (final CompoundTag damageType : damageTypes) {
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final IntTag id = damageType.get("id");
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highestId = Math.max(highestId, id.asInt());
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}
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// AaaaAAAaa
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final CompoundTag outsideBorderReason = new CompoundTag();
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final CompoundTag outsideBorderElement = new CompoundTag();
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outsideBorderElement.put("scaling", new StringTag("always"));
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outsideBorderElement.put("exhaustion", new FloatTag(0F));
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outsideBorderElement.put("message_id", new StringTag("badRespawnPoint"));
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outsideBorderReason.put("id", new IntTag(highestId + 1));
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outsideBorderReason.put("name", new StringTag("minecraft:outside_border"));
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outsideBorderReason.put("element", outsideBorderElement);
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damageTypes.add(outsideBorderReason);
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final CompoundTag genericKillReason = new CompoundTag();
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final CompoundTag genericKillElement = new CompoundTag();
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genericKillElement.put("scaling", new StringTag("always"));
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genericKillElement.put("exhaustion", new FloatTag(0F));
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genericKillElement.put("message_id", new StringTag("badRespawnPoint"));
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genericKillReason.put("id", new IntTag(highestId + 2));
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genericKillReason.put("name", new StringTag("minecraft:generic_kill"));
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genericKillReason.put("element", genericKillElement);
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damageTypes.add(genericKillReason);
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});
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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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map(Type.STRING); // Dimension
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map(Type.STRING); // World
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map(Type.LONG); // Seed
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map(Type.UNSIGNED_BYTE); // Gamemode
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map(Type.BYTE); // Previous gamemode
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map(Type.BOOLEAN); // Debug
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map(Type.BOOLEAN); // Flat
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map(Type.BYTE); // Data to keep
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map(Type.OPTIONAL_GLOBAL_POSITION); // Last death location
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create(Type.VAR_INT, 0); // Portal cooldown
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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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}
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@Override
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protected void registerRewrites() {
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filter().mapMetaType(Types1_20.META_TYPES::byId);
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registerMetaTypeHandler(Types1_20.META_TYPES.itemType, Types1_20.META_TYPES.blockStateType, Types1_20.META_TYPES.optionalBlockStateType, Types1_20.META_TYPES.particleType);
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// Rotate item display by 180 degrees around the Y axis
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filter().type(EntityTypes1_19_4.ITEM_DISPLAY).handler((event, meta) -> {
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if (event.trackedEntity().hasSentMetadata() || event.hasExtraMeta()) {
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return;
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}
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if (event.metaAtIndex(12) == null) {
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event.createExtraMeta(new Metadata(12, Types1_20.META_TYPES.quaternionType, Y_FLIPPED_ROTATION));
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}
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});
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filter().type(EntityTypes1_19_4.ITEM_DISPLAY).index(12).handler((event, meta) -> {
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final Quaternion quaternion = meta.value();
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meta.setValue(rotateY180(quaternion));
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});
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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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private Quaternion rotateY180(final Quaternion quaternion) {
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return new Quaternion(-quaternion.z(), quaternion.w(), quaternion.x(), -quaternion.y());
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}
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}
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