forked from GeyserMC/Geyser
186d94917a
* Update copyright to 2021 Free commit! * These don't need a copyright * Don't downgrade the mappings
137 lines
6.3 KiB
Java
137 lines
6.3 KiB
Java
/*
|
|
* Copyright (c) 2019-2021 GeyserMC. http://geysermc.org
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
* @author GeyserMC
|
|
* @link https://github.com/GeyserMC/Geyser
|
|
*/
|
|
|
|
package org.geysermc.connector.network.translators.java.world;
|
|
|
|
import com.github.steveice10.mc.protocol.data.game.chunk.Column;
|
|
import com.github.steveice10.mc.protocol.packet.ingame.server.world.ServerChunkDataPacket;
|
|
import com.nukkitx.nbt.NBTOutputStream;
|
|
import com.nukkitx.nbt.NbtMap;
|
|
import com.nukkitx.nbt.NbtUtils;
|
|
import com.nukkitx.network.VarInts;
|
|
import com.nukkitx.protocol.bedrock.packet.LevelChunkPacket;
|
|
import io.netty.buffer.ByteBuf;
|
|
import io.netty.buffer.ByteBufAllocator;
|
|
import io.netty.buffer.ByteBufOutputStream;
|
|
import org.geysermc.connector.GeyserConnector;
|
|
import org.geysermc.connector.network.session.GeyserSession;
|
|
import org.geysermc.connector.network.translators.BiomeTranslator;
|
|
import org.geysermc.connector.network.translators.PacketTranslator;
|
|
import org.geysermc.connector.network.translators.Translator;
|
|
import org.geysermc.connector.network.translators.world.chunk.ChunkSection;
|
|
import org.geysermc.connector.utils.ChunkUtils;
|
|
|
|
@Translator(packet = ServerChunkDataPacket.class)
|
|
public class JavaChunkDataTranslator extends PacketTranslator<ServerChunkDataPacket> {
|
|
/**
|
|
* Determines if we should process non-full chunks
|
|
*/
|
|
private final boolean cacheChunks;
|
|
|
|
public JavaChunkDataTranslator() {
|
|
cacheChunks = GeyserConnector.getInstance().getConfig().isCacheChunks();
|
|
}
|
|
|
|
@Override
|
|
public void translate(ServerChunkDataPacket packet, GeyserSession session) {
|
|
if (session.isSpawned()) {
|
|
ChunkUtils.updateChunkPosition(session, session.getPlayerEntity().getPosition().toInt());
|
|
}
|
|
|
|
if (packet.getColumn().getBiomeData() == null && !cacheChunks) {
|
|
// Non-full chunk without chunk caching
|
|
session.getConnector().getLogger().debug("Not sending non-full chunk because chunk caching is off.");
|
|
return;
|
|
}
|
|
|
|
// Merge received column with cache on network thread
|
|
Column mergedColumn = session.getChunkCache().addToCache(packet.getColumn());
|
|
if (mergedColumn == null) { // There were no changes?!?
|
|
return;
|
|
}
|
|
|
|
boolean isNonFullChunk = packet.getColumn().getBiomeData() == null;
|
|
|
|
GeyserConnector.getInstance().getGeneralThreadPool().execute(() -> {
|
|
try {
|
|
ChunkUtils.ChunkData chunkData = ChunkUtils.translateToBedrock(session, mergedColumn, isNonFullChunk);
|
|
ChunkSection[] sections = chunkData.getSections();
|
|
|
|
// Find highest section
|
|
int sectionCount = sections.length - 1;
|
|
while (sectionCount >= 0 && sections[sectionCount] == null) {
|
|
sectionCount--;
|
|
}
|
|
sectionCount++;
|
|
|
|
// Estimate chunk size
|
|
int size = 0;
|
|
for (int i = 0; i < sectionCount; i++) {
|
|
ChunkSection section = sections[i];
|
|
size += (section != null ? section : ChunkUtils.EMPTY_SECTION).estimateNetworkSize();
|
|
}
|
|
size += 256; // Biomes
|
|
size += 1; // Border blocks
|
|
size += 1; // Extra data length (always 0)
|
|
size += chunkData.getBlockEntities().length * 64; // Conservative estimate of 64 bytes per tile entity
|
|
|
|
// Allocate output buffer
|
|
ByteBuf byteBuf = ByteBufAllocator.DEFAULT.buffer(size);
|
|
byte[] payload;
|
|
try {
|
|
for (int i = 0; i < sectionCount; i++) {
|
|
ChunkSection section = sections[i];
|
|
(section != null ? section : ChunkUtils.EMPTY_SECTION).writeToNetwork(byteBuf);
|
|
}
|
|
|
|
byteBuf.writeBytes(BiomeTranslator.toBedrockBiome(mergedColumn.getBiomeData())); // Biomes - 256 bytes
|
|
byteBuf.writeByte(0); // Border blocks - Edu edition only
|
|
VarInts.writeUnsignedInt(byteBuf, 0); // extra data length, 0 for now
|
|
|
|
// Encode tile entities into buffer
|
|
NBTOutputStream nbtStream = NbtUtils.createNetworkWriter(new ByteBufOutputStream(byteBuf));
|
|
for (NbtMap blockEntity : chunkData.getBlockEntities()) {
|
|
nbtStream.writeTag(blockEntity);
|
|
}
|
|
|
|
// Copy data into byte[], because the protocol lib really likes things that are s l o w
|
|
byteBuf.readBytes(payload = new byte[byteBuf.readableBytes()]);
|
|
} finally {
|
|
byteBuf.release(); // Release buffer to allow buffer pooling to be useful
|
|
}
|
|
|
|
LevelChunkPacket levelChunkPacket = new LevelChunkPacket();
|
|
levelChunkPacket.setSubChunksLength(sectionCount);
|
|
levelChunkPacket.setCachingEnabled(false);
|
|
levelChunkPacket.setChunkX(mergedColumn.getX());
|
|
levelChunkPacket.setChunkZ(mergedColumn.getZ());
|
|
levelChunkPacket.setData(payload);
|
|
session.sendUpstreamPacket(levelChunkPacket);
|
|
} catch (Exception ex) {
|
|
ex.printStackTrace();
|
|
}
|
|
});
|
|
}
|
|
}
|