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ViaVersion/common/src/main/java/com/viaversion/viaversion/protocols/protocol1_12to1_11_1/Protocol1_12To1_11_1.java

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/*
* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
* Copyright (C) 2016-2024 ViaVersion and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.viaversion.viaversion.protocols.protocol1_12to1_11_1;
import com.github.steveice10.opennbt.tag.builtin.CompoundTag;
import com.github.steveice10.opennbt.tag.builtin.IntTag;
import com.github.steveice10.opennbt.tag.builtin.StringTag;
import com.google.gson.JsonElement;
import com.viaversion.viaversion.api.Via;
import com.viaversion.viaversion.api.connection.UserConnection;
import com.viaversion.viaversion.api.minecraft.ClientWorld;
import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
import com.viaversion.viaversion.api.minecraft.chunks.ChunkSection;
import com.viaversion.viaversion.api.minecraft.chunks.DataPalette;
import com.viaversion.viaversion.api.minecraft.chunks.PaletteType;
import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_12;
import com.viaversion.viaversion.api.platform.providers.ViaProviders;
import com.viaversion.viaversion.api.protocol.AbstractProtocol;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
import com.viaversion.viaversion.api.protocol.version.ProtocolVersion;
import com.viaversion.viaversion.api.type.Type;
import com.viaversion.viaversion.api.type.types.chunk.ChunkType1_9_3;
import com.viaversion.viaversion.api.type.types.version.Types1_12;
import com.viaversion.viaversion.data.entity.EntityTrackerBase;
import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.metadata.MetadataRewriter1_12To1_11_1;
import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.packets.InventoryPackets;
import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.providers.InventoryQuickMoveProvider;
import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.rewriter.ChatItemRewriter;
import com.viaversion.viaversion.protocols.protocol1_12to1_11_1.rewriter.TranslateRewriter;
import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.ClientboundPackets1_13;
import com.viaversion.viaversion.protocols.protocol1_13to1_12_2.Protocol1_13To1_12_2;
import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ClientboundPackets1_9_3;
import com.viaversion.viaversion.protocols.protocol1_9_3to1_9_1_2.ServerboundPackets1_9_3;
import com.viaversion.viaversion.protocols.protocol1_9to1_8.Protocol1_9To1_8;
import com.viaversion.viaversion.rewriter.SoundRewriter;
import java.util.logging.Level;
public class Protocol1_12To1_11_1 extends AbstractProtocol<ClientboundPackets1_9_3, ClientboundPackets1_12, ServerboundPackets1_9_3, ServerboundPackets1_12> {
private final MetadataRewriter1_12To1_11_1 metadataRewriter = new MetadataRewriter1_12To1_11_1(this);
private final InventoryPackets itemRewriter = new InventoryPackets(this);
public Protocol1_12To1_11_1() {
super(ClientboundPackets1_9_3.class, ClientboundPackets1_12.class, ServerboundPackets1_9_3.class, ServerboundPackets1_12.class);
}
@Override
protected void registerPackets() {
super.registerPackets();
registerClientbound(ClientboundPackets1_9_3.SPAWN_ENTITY, new PacketHandlers() {
@Override
public void register() {
map(Type.VAR_INT); // 0 - Entity id
map(Type.UUID); // 1 - UUID
map(Type.BYTE); // 2 - Type
// Track Entity
handler(metadataRewriter.objectTrackerHandler());
}
});
registerClientbound(ClientboundPackets1_9_3.SPAWN_MOB, new PacketHandlers() {
@Override
public void register() {
map(Type.VAR_INT); // 0 - Entity ID
map(Type.UUID); // 1 - Entity UUID
map(Type.VAR_INT); // 2 - Entity Type
map(Type.DOUBLE); // 3 - X
map(Type.DOUBLE); // 4 - Y
map(Type.DOUBLE); // 5 - Z
map(Type.BYTE); // 6 - Yaw
map(Type.BYTE); // 7 - Pitch
map(Type.BYTE); // 8 - Head Pitch
map(Type.SHORT); // 9 - Velocity X
map(Type.SHORT); // 10 - Velocity Y
map(Type.SHORT); // 11 - Velocity Z
map(Types1_12.METADATA_LIST); // 12 - Metadata
// Track mob and rewrite metadata
handler(metadataRewriter.trackerAndRewriterHandler(Types1_12.METADATA_LIST));
}
});
registerClientbound(ClientboundPackets1_9_3.CHAT_MESSAGE, wrapper -> {
if (!Via.getConfig().is1_12NBTArrayFix()) return;
try {
JsonElement obj = Protocol1_9To1_8.FIX_JSON.transform(null, wrapper.passthrough(Type.COMPONENT).toString());
TranslateRewriter.toClient(obj);
ChatItemRewriter.toClient(obj);
wrapper.set(Type.COMPONENT, 0, obj);
} catch (Exception e) {
Via.getPlatform().getLogger().log(Level.WARNING, "Error converting 1.11.2 -> 1.12 chat item", e);
}
});
registerClientbound(ClientboundPackets1_9_3.CHUNK_DATA, wrapper -> {
ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
ChunkType1_9_3 type = ChunkType1_9_3.forEnvironment(clientWorld.getEnvironment());
Chunk chunk = wrapper.passthrough(type);
for (int s = 0; s < chunk.getSections().length; s++) {
ChunkSection section = chunk.getSections()[s];
if (section == null) continue;
DataPalette blocks = section.palette(PaletteType.BLOCKS);
for (int idx = 0; idx < ChunkSection.SIZE; idx++) {
int id = blocks.idAt(idx) >> 4;
// Is this a bed?
if (id != 26) continue;
// NBT -> { color:14, x:132, y:64, z:222, id:"minecraft:bed" } (Debug output)
CompoundTag tag = new CompoundTag();
tag.put("color", new IntTag(14)); // Set color to red (Default in previous versions)
tag.put("x", new IntTag(ChunkSection.xFromIndex(idx) + (chunk.getX() << 4)));
tag.put("y", new IntTag(ChunkSection.yFromIndex(idx) + (s << 4)));
tag.put("z", new IntTag(ChunkSection.zFromIndex(idx) + (chunk.getZ() << 4)));
tag.put("id", new StringTag("minecraft:bed"));
// Add a fake block entity
chunk.getBlockEntities().add(tag);
}
}
});
metadataRewriter.registerRemoveEntities(ClientboundPackets1_9_3.DESTROY_ENTITIES);
metadataRewriter.registerMetadataRewriter(ClientboundPackets1_9_3.ENTITY_METADATA, Types1_12.METADATA_LIST);
registerClientbound(ClientboundPackets1_9_3.JOIN_GAME, new PacketHandlers() {
@Override
public void register() {
map(Type.INT);
map(Type.UNSIGNED_BYTE);
map(Type.INT);
handler(wrapper -> {
UserConnection user = wrapper.user();
ClientWorld clientChunks = user.get(ClientWorld.class);
int dimensionId = wrapper.get(Type.INT, 1);
clientChunks.setEnvironment(dimensionId);
// Reset recipes
if (user.getProtocolInfo().getProtocolVersion() >= ProtocolVersion.v1_13.getVersion()) {
wrapper.create(ClientboundPackets1_13.DECLARE_RECIPES, packetWrapper -> packetWrapper.write(Type.VAR_INT, 0))
.scheduleSend(Protocol1_13To1_12_2.class);
}
});
}
});
registerClientbound(ClientboundPackets1_9_3.RESPAWN, new PacketHandlers() {
@Override
public void register() {
map(Type.INT);
handler(wrapper -> {
ClientWorld clientWorld = wrapper.user().get(ClientWorld.class);
int dimensionId = wrapper.get(Type.INT, 0);
clientWorld.setEnvironment(dimensionId);
});
}
});
new SoundRewriter<>(this, this::getNewSoundId).registerSound(ClientboundPackets1_9_3.SOUND);
// New packet at 0x01
cancelServerbound(ServerboundPackets1_12.PREPARE_CRAFTING_GRID);
// Client Settings (max length changed)
registerServerbound(ServerboundPackets1_12.CLIENT_SETTINGS, new PacketHandlers() {
@Override
public void register() {
map(Type.STRING); // 0 - Locale
map(Type.BYTE); // 1 - view distance
map(Type.VAR_INT); // 2 - chat mode
map(Type.BOOLEAN); // 3 - chat colors
map(Type.UNSIGNED_BYTE); // 4 - chat flags
map(Type.VAR_INT); // 5 - main hand
handler(wrapper -> {
// As part of the fix for MC-111054, the max length of
// the locale was raised to 16 (from 7), and the client
// now makes sure that resource packs have names in that
// length. However, for older servers, it is still 7,
// and thus the server will reject it (and the client
// won't know that the pack's invalid).
// The fix is to just silently lower the length. The
// server doesn't actually use the locale anywhere, so
// this is fine.
String locale = wrapper.get(Type.STRING, 0);
if (locale.length() > 7) {
wrapper.set(Type.STRING, 0, locale.substring(0, 7));
}
});
}
});
// New packet at 0x17
cancelServerbound(ServerboundPackets1_12.RECIPE_BOOK_DATA);
// New packet 0x19
cancelServerbound(ServerboundPackets1_12.ADVANCEMENT_TAB);
}
private int getNewSoundId(int id) {
int newId = id;
if (id >= 26) // End Portal Sounds
newId += 2;
if (id >= 70) // New Block Notes
newId += 4;
if (id >= 74) // New Block Note 2
newId += 1;
if (id >= 143) // Boat Sounds
newId += 3;
if (id >= 185) // Endereye death
newId += 1;
if (id >= 263) // Illagers
newId += 7;
if (id >= 301) // Parrots
newId += 33;
if (id >= 317) // Player Sounds
newId += 2;
if (id >= 491) // UI toast sound
newId += 3;
return newId;
}
@Override
public void register(ViaProviders providers) {
providers.register(InventoryQuickMoveProvider.class, new InventoryQuickMoveProvider());
}
@Override
public void init(UserConnection userConnection) {
userConnection.addEntityTracker(this.getClass(), new EntityTrackerBase(userConnection, EntityTypes1_12.EntityType.PLAYER));
if (!userConnection.has(ClientWorld.class)) {
userConnection.put(new ClientWorld());
}
}
@Override
public MetadataRewriter1_12To1_11_1 getEntityRewriter() {
return metadataRewriter;
}
@Override
public InventoryPackets getItemRewriter() {
return itemRewriter;
}
}
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