ViaVersion/common/src/main/java/com/viaversion/viaversion/protocols/protocol1_19_3to1_19_1/packets/EntityPackets.java

182 lines
8.4 KiB
Java

/*
* 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_19_3to1_19_1.packets;
import com.google.gson.JsonElement;
import com.viaversion.viaversion.api.minecraft.entities.EntityType;
import com.viaversion.viaversion.api.minecraft.entities.EntityTypes1_19_3;
import com.viaversion.viaversion.api.protocol.packet.PacketWrapper;
import com.viaversion.viaversion.api.protocol.remapper.PacketHandlers;
import com.viaversion.viaversion.api.type.Type;
import com.viaversion.viaversion.api.type.types.version.Types1_19;
import com.viaversion.viaversion.api.type.types.version.Types1_19_3;
import com.viaversion.viaversion.protocols.protocol1_19_1to1_19.ClientboundPackets1_19_1;
import com.viaversion.viaversion.protocols.protocol1_19_3to1_19_1.ClientboundPackets1_19_3;
import com.viaversion.viaversion.protocols.protocol1_19_3to1_19_1.Protocol1_19_3To1_19_1;
import com.viaversion.viaversion.rewriter.EntityRewriter;
import java.util.BitSet;
import java.util.UUID;
public final class EntityPackets extends EntityRewriter<ClientboundPackets1_19_1, Protocol1_19_3To1_19_1> {
public EntityPackets(final Protocol1_19_3To1_19_1 protocol) {
super(protocol);
}
@Override
public void registerPackets() {
registerTrackerWithData1_19(ClientboundPackets1_19_1.SPAWN_ENTITY, EntityTypes1_19_3.FALLING_BLOCK);
registerTracker(ClientboundPackets1_19_1.SPAWN_EXPERIENCE_ORB, EntityTypes1_19_3.EXPERIENCE_ORB);
registerTracker(ClientboundPackets1_19_1.SPAWN_PLAYER, EntityTypes1_19_3.PLAYER);
registerMetadataRewriter(ClientboundPackets1_19_1.ENTITY_METADATA, Types1_19.METADATA_LIST, Types1_19_3.METADATA_LIST);
registerRemoveEntities(ClientboundPackets1_19_1.REMOVE_ENTITIES);
protocol.registerClientbound(ClientboundPackets1_19_1.JOIN_GAME, new PacketHandlers() {
@Override
public void register() {
map(Type.INT); // Entity id
map(Type.BOOLEAN); // Hardcore
map(Type.BYTE); // Gamemode
map(Type.BYTE); // Previous Gamemode
map(Type.STRING_ARRAY); // World List
map(Type.NAMED_COMPOUND_TAG); // Dimension registry
map(Type.STRING); // Dimension key
map(Type.STRING); // World
handler(dimensionDataHandler());
handler(biomeSizeTracker());
handler(worldDataTrackerHandlerByKey());
handler(playerTrackerHandler());
handler(wrapper -> {
// Also enable vanilla features
final PacketWrapper enableFeaturesPacket = wrapper.create(ClientboundPackets1_19_3.UPDATE_ENABLED_FEATURES);
enableFeaturesPacket.write(Type.VAR_INT, 1);
enableFeaturesPacket.write(Type.STRING, "minecraft:vanilla");
enableFeaturesPacket.scheduleSend(Protocol1_19_3To1_19_1.class);
});
}
});
protocol.registerClientbound(ClientboundPackets1_19_1.RESPAWN, new PacketHandlers() {
@Override
public void register() {
map(Type.STRING); // Dimension
map(Type.STRING); // World
map(Type.LONG); // Seed
map(Type.UNSIGNED_BYTE); // Gamemode
map(Type.BYTE); // Previous gamemode
map(Type.BOOLEAN); // Debug
map(Type.BOOLEAN); // Flat
handler(worldDataTrackerHandlerByKey());
handler(wrapper -> {
final boolean keepAttributes = wrapper.read(Type.BOOLEAN);
byte keepDataMask = 0x02; // Always keep entity data
if (keepAttributes) {
keepDataMask |= 0x01;
}
wrapper.write(Type.BYTE, keepDataMask);
});
}
});
protocol.registerClientbound(ClientboundPackets1_19_1.PLAYER_INFO, ClientboundPackets1_19_3.PLAYER_INFO_UPDATE, wrapper -> {
final int action = wrapper.read(Type.VAR_INT);
if (action == 4) { // Remove player
// Write into new packet type
final int entries = wrapper.read(Type.VAR_INT);
final UUID[] uuidsToRemove = new UUID[entries];
for (int i = 0; i < entries; i++) {
uuidsToRemove[i] = wrapper.read(Type.UUID);
}
wrapper.write(Type.UUID_ARRAY, uuidsToRemove);
wrapper.setPacketType(ClientboundPackets1_19_3.PLAYER_INFO_REMOVE);
return;
}
final BitSet set = new BitSet(6);
if (action == 0) {
// Includes add player, profile key, gamemode, listed status, latency, and display name
set.set(0, 6);
} else {
// Update listed added at 3, initialize chat added at index 1
set.set(action == 1 ? action + 1 : action + 2);
}
wrapper.write(Type.PROFILE_ACTIONS_ENUM, set);
final int entries = wrapper.passthrough(Type.VAR_INT);
for (int i = 0; i < entries; i++) {
wrapper.passthrough(Type.UUID); // UUID
if (action == 0) { // Add player
wrapper.passthrough(Type.STRING); // Player Name
final int properties = wrapper.passthrough(Type.VAR_INT);
for (int j = 0; j < properties; j++) {
wrapper.passthrough(Type.STRING); // Name
wrapper.passthrough(Type.STRING); // Value
wrapper.passthrough(Type.OPTIONAL_STRING); // Signature
}
final int gamemode = wrapper.read(Type.VAR_INT);
final int ping = wrapper.read(Type.VAR_INT);
final JsonElement displayName = wrapper.read(Type.OPTIONAL_COMPONENT);
wrapper.read(Type.OPTIONAL_PROFILE_KEY);
wrapper.write(Type.BOOLEAN, false); // No chat session data
wrapper.write(Type.VAR_INT, gamemode);
wrapper.write(Type.BOOLEAN, true); // Also update listed
wrapper.write(Type.VAR_INT, ping);
wrapper.write(Type.OPTIONAL_COMPONENT, displayName);
} else if (action == 1 || action == 2) { // Update gamemode/update latency
wrapper.passthrough(Type.VAR_INT);
} else if (action == 3) { // Update display name
wrapper.passthrough(Type.OPTIONAL_COMPONENT);
}
}
});
}
@Override
protected void registerRewrites() {
filter().mapMetaType(typeId -> Types1_19_3.META_TYPES.byId(typeId >= 2 ? typeId + 1 : typeId)); // Long added
registerMetaTypeHandler(Types1_19_3.META_TYPES.itemType, Types1_19_3.META_TYPES.blockStateType, null, Types1_19_3.META_TYPES.particleType);
filter().type(EntityTypes1_19_3.ENTITY).index(6).handler((event, meta) -> {
// Sitting pose added
final int pose = meta.value();
if (pose >= 10) {
meta.setValue(pose + 1);
}
});
filter().type(EntityTypes1_19_3.MINECART_ABSTRACT).index(11).handler((event, meta) -> {
// Convert to new block id
final int data = (int) meta.getValue();
meta.setValue(protocol.getMappingData().getNewBlockStateId(data));
});
}
@Override
public void onMappingDataLoaded() {
mapTypes();
}
@Override
public EntityType typeFromId(final int type) {
return EntityTypes1_19_3.getTypeFromId(type);
}
}