mirror of
https://github.com/ViaVersion/ViaBackwards.git
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Emulate block and item display entities in 1.19.4->1.19.3 (#871)
This commit is contained in:
EnZaXD
GitHub
parent
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commit
1dfef5b97e
@ -23,11 +23,10 @@ import com.viaversion.viabackwards.api.rewriters.SoundRewriter;
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import com.viaversion.viabackwards.api.rewriters.TranslatableRewriter;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.rewriter.BlockItemPacketRewriter1_19_4;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.rewriter.EntityPacketRewriter1_19_4;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.storage.EntityTracker1_19_4;
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import com.viaversion.viaversion.api.connection.UserConnection;
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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.type.Types;
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import com.viaversion.viaversion.data.entity.EntityTrackerBase;
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import com.viaversion.viaversion.libs.gson.JsonElement;
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import com.viaversion.viaversion.protocols.v1_19_1to1_19_3.packet.ClientboundPackets1_19_3;
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import com.viaversion.viaversion.protocols.v1_19_1to1_19_3.packet.ServerboundPackets1_19_3;
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@ -114,7 +113,7 @@ public final class Protocol1_19_4To1_19_3 extends BackwardsProtocol<ClientboundP
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@Override
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public void init(final UserConnection user) {
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addEntityTracker(user, new EntityTrackerBase(user, EntityTypes1_19_4.PLAYER));
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addEntityTracker(user, new EntityTracker1_19_4(user));
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}
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@Override
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@ -20,17 +20,24 @@ package com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.rewriter;
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import com.viaversion.nbt.tag.CompoundTag;
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import com.viaversion.nbt.tag.ListTag;
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import com.viaversion.nbt.tag.NumberTag;
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import com.viaversion.viabackwards.api.entities.storage.EntityPositionHandler;
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import com.viaversion.viabackwards.api.entities.storage.EntityReplacement;
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import com.viaversion.viabackwards.api.rewriters.EntityRewriter;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.Protocol1_19_4To1_19_3;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.storage.EntityTracker1_19_4;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.storage.LinkedEntityStorage;
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import com.viaversion.viaversion.api.data.entity.StoredEntityData;
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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_3;
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import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_19_4;
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import com.viaversion.viaversion.api.minecraft.entitydata.EntityData;
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import com.viaversion.viaversion.api.minecraft.item.Item;
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import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.protocol.remapper.PacketHandler;
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import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
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import com.viaversion.viaversion.api.type.Types;
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import com.viaversion.viaversion.api.type.types.version.Types1_19_3;
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import com.viaversion.viaversion.api.type.types.version.Types1_19_4;
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import com.viaversion.viaversion.libs.gson.JsonElement;
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import com.viaversion.viaversion.protocols.v1_19_1to1_19_3.packet.ClientboundPackets1_19_3;
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import com.viaversion.viaversion.protocols.v1_19_3to1_19_4.packet.ClientboundPackets1_19_4;
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import com.viaversion.viaversion.util.TagUtil;
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@ -43,10 +50,45 @@ public final class EntityPacketRewriter1_19_4 extends EntityRewriter<Clientbound
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@Override
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public void registerPackets() {
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registerTrackerWithData1_19(ClientboundPackets1_19_4.ADD_ENTITY, EntityTypes1_19_4.FALLING_BLOCK);
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registerRemoveEntities(ClientboundPackets1_19_4.REMOVE_ENTITIES);
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registerSetEntityData(ClientboundPackets1_19_4.SET_ENTITY_DATA, Types1_19_4.ENTITY_DATA_LIST, Types1_19_3.ENTITY_DATA_LIST);
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protocol.registerClientbound(ClientboundPackets1_19_4.ADD_ENTITY, new PacketHandlers() {
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@Override
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public void register() {
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map(Types.VAR_INT); // Entity id
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map(Types.UUID); // Entity UUID
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map(Types.VAR_INT); // Entity type
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map(Types.DOUBLE); // X
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map(Types.DOUBLE); // Y
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map(Types.DOUBLE); // Z
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map(Types.BYTE); // Pitch
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map(Types.BYTE); // Yaw
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map(Types.BYTE); // Head yaw
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map(Types.VAR_INT); // Data
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handler(wrapper -> {
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final int entityId = wrapper.get(Types.VAR_INT, 0);
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final int entityType = wrapper.get(Types.VAR_INT, 1);
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// First track (and remap) entity, then put storage for block display entity
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getSpawnTrackerWithDataHandler1_19(EntityTypes1_19_4.FALLING_BLOCK).handle(wrapper);
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if (entityType != EntityTypes1_19_4.BLOCK_DISPLAY.getId()) {
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return;
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}
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final StoredEntityData data = tracker(wrapper.user()).entityData(entityId);
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if (data != null) {
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final LinkedEntityStorage storage = new LinkedEntityStorage();
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final double x = wrapper.get(Types.DOUBLE, 0);
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final double y = wrapper.get(Types.DOUBLE, 1);
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final double z = wrapper.get(Types.DOUBLE, 2);
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storage.setPosition(x, y, z);
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data.put(storage);
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}
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});
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}
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});
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protocol.registerClientbound(ClientboundPackets1_19_4.LOGIN, new PacketHandlers() {
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@Override
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public void register() {
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@ -137,6 +179,40 @@ public final class EntityPacketRewriter1_19_4 extends EntityRewriter<Clientbound
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final int duration = wrapper.read(Types.VAR_INT);
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wrapper.write(Types.VAR_INT, duration == -1 ? 999999 : duration);
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});
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// Track the position of block display entities to later spawn the linked entities, we will put them
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// as passengers but the spawn position needs to be in the players view distance
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protocol.registerClientbound(ClientboundPackets1_19_4.TELEPORT_ENTITY, wrapper -> {
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final int entityId = wrapper.passthrough(Types.VAR_INT);
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final double x = wrapper.passthrough(Types.DOUBLE);
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final double y = wrapper.passthrough(Types.DOUBLE);
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final double z = wrapper.passthrough(Types.DOUBLE);
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final EntityTracker1_19_4 tracker = tracker(wrapper.user());
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final LinkedEntityStorage storage = tracker.linkedEntityStorage(entityId);
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if (storage == null) {
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return;
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}
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storage.setPosition(x, y, z);
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});
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final PacketHandler entityPositionHandler = wrapper -> {
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final int entityId = wrapper.passthrough(Types.VAR_INT);
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final double x = wrapper.passthrough(Types.SHORT) / EntityPositionHandler.RELATIVE_MOVE_FACTOR;
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final double y = wrapper.passthrough(Types.SHORT) / EntityPositionHandler.RELATIVE_MOVE_FACTOR;
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final double z = wrapper.passthrough(Types.SHORT) / EntityPositionHandler.RELATIVE_MOVE_FACTOR;
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final EntityTracker1_19_4 tracker = tracker(wrapper.user());
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final LinkedEntityStorage storage = tracker.linkedEntityStorage(entityId);
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if (storage == null) {
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return;
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}
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storage.addRelativePosition(x, y, z);
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};
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protocol.registerClientbound(ClientboundPackets1_19_4.MOVE_ENTITY_POS, entityPositionHandler);
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protocol.registerClientbound(ClientboundPackets1_19_4.MOVE_ENTITY_POS_ROT, entityPositionHandler);
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}
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@Override
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@ -168,8 +244,35 @@ public final class EntityPacketRewriter1_19_4 extends EntityRewriter<Clientbound
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data.setDataType(Types1_19_3.ENTITY_DATA_TYPES.optionalComponentType);
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event.createExtraData(new EntityData(3, Types1_19_3.ENTITY_DATA_TYPES.booleanType, true)); // Show custom name
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}));
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filter().type(EntityTypes1_19_4.BLOCK_DISPLAY).index(22).handler((event, data) -> {
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final int value = data.value();
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final EntityTracker1_19_4 tracker = tracker(event.user());
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tracker.clearLinkedEntities(event.entityId());
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final LinkedEntityStorage storage = tracker.linkedEntityStorage(event.entityId());
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if (storage == null) {
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return;
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}
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final int linkedEntity = tracker.spawnEntity(EntityTypes1_19_3.FALLING_BLOCK, storage.x(), storage.y(), storage.z(), value);
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storage.setEntities(linkedEntity);
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final PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_19_3.SET_PASSENGERS, event.user());
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wrapper.write(Types.VAR_INT, event.entityId()); // Entity id
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wrapper.write(Types.VAR_INT_ARRAY_PRIMITIVE, new int[] { linkedEntity }); // Passenger entity ids
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wrapper.send(Protocol1_19_4To1_19_3.class);
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});
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filter().type(EntityTypes1_19_4.ITEM_DISPLAY).index(22).handler((event, data) -> {
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final Item value = data.value();
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final PacketWrapper setEquipment = PacketWrapper.create(ClientboundPackets1_19_3.SET_EQUIPMENT, event.user());
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setEquipment.write(Types.VAR_INT, event.entityId()); // Entity id
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setEquipment.write(Types.BYTE, (byte) 5); // Slot - head
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setEquipment.write(Types.ITEM1_13_2, value);
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setEquipment.send(Protocol1_19_4To1_19_3.class);
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});
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filter().type(EntityTypes1_19_4.DISPLAY).handler((event, data) -> {
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// TODO Maybe spawn an extra entity to ride the armor stand for blocks and items
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// Remove a large heap of display entity data
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if (event.index() > 7) {
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event.cancel();
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@ -0,0 +1,104 @@
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/*
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* This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
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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.viabackwards.protocol.v1_19_4to1_19_3.storage;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.Protocol1_19_4To1_19_3;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.api.data.entity.TrackedEntity;
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import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_19_3;
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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.type.Types;
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import com.viaversion.viaversion.data.entity.EntityTrackerBase;
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import com.viaversion.viaversion.libs.fastutil.ints.IntOpenHashSet;
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import com.viaversion.viaversion.libs.fastutil.ints.IntSet;
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import com.viaversion.viaversion.protocols.v1_19_1to1_19_3.packet.ClientboundPackets1_19_3;
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import java.util.UUID;
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import java.util.concurrent.ThreadLocalRandom;
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public final class EntityTracker1_19_4 extends EntityTrackerBase {
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private final IntSet generatedEntities = new IntOpenHashSet(); // Track entities spawned to prevent duplicated entity ids
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public EntityTracker1_19_4(final UserConnection connection) {
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super(connection, EntityTypes1_19_4.PLAYER);
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}
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public int spawnEntity(final EntityTypes1_19_3 entityType, final double x, final double y, final double z, final int data) {
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final int entityId = nextEntityId();
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final PacketWrapper addEntity = PacketWrapper.create(ClientboundPackets1_19_3.ADD_ENTITY, user());
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addEntity.write(Types.VAR_INT, entityId); // Entity id
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addEntity.write(Types.UUID, UUID.randomUUID()); // Entity UUID
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addEntity.write(Types.VAR_INT, entityType.getId()); // Entity type
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addEntity.write(Types.DOUBLE, x); // X
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addEntity.write(Types.DOUBLE, y); // Y
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addEntity.write(Types.DOUBLE, z); // Z
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addEntity.write(Types.BYTE, (byte) 0); // Pitch
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addEntity.write(Types.BYTE, (byte) 0); // Yaw
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addEntity.write(Types.BYTE, (byte) 0); // Head yaw
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addEntity.write(Types.VAR_INT, data); // Data
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addEntity.write(Types.SHORT, (short) 0); // Velocity X
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addEntity.write(Types.SHORT, (short) 0); // Velocity Y
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addEntity.write(Types.SHORT, (short) 0); // Velocity Z
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addEntity.send(Protocol1_19_4To1_19_3.class);
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generatedEntities.add(entityId);
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return entityId;
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}
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@Override
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public void clearEntities() {
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for (final int id : entities.keySet()) {
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clearLinkedEntities(id);
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}
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super.clearEntities();
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}
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@Override
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public void removeEntity(final int id) {
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clearLinkedEntities(id);
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super.removeEntity(id);
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}
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public void clearLinkedEntities(final int id) {
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final LinkedEntityStorage storage = linkedEntityStorage(id);
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if (storage != null && storage.entities() != null) {
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storage.remove(user());
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generatedEntities.remove(id);
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}
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}
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public LinkedEntityStorage linkedEntityStorage(final int id) {
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final TrackedEntity entity = entity(id);
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if (entity != null && entity.hasData()) {
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return entity.data().get(LinkedEntityStorage.class);
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}
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return null;
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}
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private int nextEntityId() {
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final int entityId = -ThreadLocalRandom.current().nextInt(10_000);
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if (generatedEntities.contains(entityId)) {
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return nextEntityId();
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}
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return entityId;
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}
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}
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@ -0,0 +1,46 @@
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/*
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* This file is part of ViaBackwards - https://github.com/ViaVersion/ViaBackwards
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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.viabackwards.protocol.v1_19_4to1_19_3.storage;
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import com.viaversion.viabackwards.api.entities.storage.EntityPositionStorage;
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import com.viaversion.viabackwards.protocol.v1_19_4to1_19_3.Protocol1_19_4To1_19_3;
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import com.viaversion.viaversion.api.connection.StorableObject;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
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import com.viaversion.viaversion.api.type.Types;
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import com.viaversion.viaversion.protocols.v1_19_1to1_19_3.packet.ClientboundPackets1_19_3;
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public class LinkedEntityStorage extends EntityPositionStorage implements StorableObject {
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private int[] entities;
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public int[] entities() {
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return entities;
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}
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public void setEntities(final int... entities) {
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this.entities = entities;
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}
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public void remove(final UserConnection connection) {
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final PacketWrapper wrapper = PacketWrapper.create(ClientboundPackets1_19_3.REMOVE_ENTITIES, connection);
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wrapper.write(Types.VAR_INT_ARRAY_PRIMITIVE, entities);
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wrapper.send(Protocol1_19_4To1_19_3.class);
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}
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}
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