Examples with BinaryStream cn.nukkit.utils.BinaryStream used on opensource projects

Example 11 with BinaryStream

use of cn.nukkit.utils.BinaryStream in project Nukkit by Nukkit.

the class VarIntTest method testWrite.

@DisplayName("Writing")
@Test
void testWrite() throws IOException {
    BinaryStream bs = new BinaryStream();
    VarInt.writeUnsignedVarInt(bs, 237356812);
    VarInt.writeVarInt(bs, 0xea3eca71);
    VarInt.writeUnsignedVarLong(bs, 0x1234567812345678L);
    VarInt.writeVarLong(bs, 0xea3eca710becececL);
    assertAll(() -> assertEquals(237356812, VarInt.readUnsignedVarInt(bs)), () -> assertEquals(0xea3eca71, VarInt.readVarInt(bs)), () -> assertEquals(0x1234567812345678L, VarInt.readUnsignedVarLong(bs)), () -> assertEquals(0xea3eca710becececL, VarInt.readVarLong(bs)));
    ByteArrayOutputStream os = new ByteArrayOutputStream();
    VarInt.writeUnsignedVarInt(os, 237356812);
    VarInt.writeVarInt(os, 0xea3eca71);
    VarInt.writeUnsignedVarLong(os, 0x1234567812345678L);
    VarInt.writeVarLong(os, 0xea3eca710becececL);
    ByteArrayInputStream is = new ByteArrayInputStream(os.toByteArray());
    assertAll(() -> assertEquals(237356812, VarInt.readUnsignedVarInt(is)), () -> assertEquals(0xea3eca71, VarInt.readVarInt(is)), () -> assertEquals(0x1234567812345678L, VarInt.readUnsignedVarLong(is)), () -> assertEquals(0xea3eca710becececL, VarInt.readVarLong(is)));
}

Example 12 with BinaryStream

use of cn.nukkit.utils.BinaryStream in project Nukkit by Nukkit.

the class Chunk method toBinary.

public byte[] toBinary(boolean saveExtra) {
    try {
        LevelProvider provider = this.getProvider();
        if (saveExtra && provider instanceof LevelDB) {
            List<CompoundTag> entities = new ArrayList<>();
            for (Entity entity : this.getEntities().values()) {
                if (!(entity instanceof Player) && !entity.closed) {
                    entity.saveNBT();
                    entities.add(entity.namedTag);
                }
            }
            EntitiesKey entitiesKey = EntitiesKey.create(this.getX(), this.getZ());
            if (!entities.isEmpty()) {
                ((LevelDB) provider).getDatabase().put(entitiesKey.toArray(), NBTIO.write(entities));
            } else {
                ((LevelDB) provider).getDatabase().delete(entitiesKey.toArray());
            }
            List<CompoundTag> tiles = new ArrayList<>();
            for (BlockEntity blockEntity : this.getBlockEntities().values()) {
                if (!blockEntity.closed) {
                    blockEntity.saveNBT();
                    entities.add(blockEntity.namedTag);
                }
            }
            TilesKey tilesKey = TilesKey.create(this.getX(), this.getZ());
            if (!tiles.isEmpty()) {
                ((LevelDB) provider).getDatabase().put(tilesKey.toArray(), NBTIO.write(tiles));
            } else {
                ((LevelDB) provider).getDatabase().delete(tilesKey.toArray());
            }
            ExtraDataKey extraDataKey = ExtraDataKey.create(this.getX(), this.getZ());
            if (!this.getBlockExtraDataArray().isEmpty()) {
                BinaryStream extraData = new BinaryStream();
                Map<Integer, Integer> extraDataArray = this.getBlockExtraDataArray();
                extraData.putInt(extraDataArray.size());
                for (Integer key : extraDataArray.keySet()) {
                    extraData.putInt(key);
                    extraData.putShort(extraDataArray.get(key));
                }
                ((LevelDB) provider).getDatabase().put(extraDataKey.toArray(), extraData.getBuffer());
            } else {
                ((LevelDB) provider).getDatabase().delete(extraDataKey.toArray());
            }
        }
        byte[] heightMap = this.getHeightMapArray();
        byte[] biomeColors = new byte[this.getBiomeColorArray().length * 4];
        for (int i = 0; i < this.getBiomeColorArray().length; i++) {
            byte[] bytes = Binary.writeInt(this.getBiomeColorArray()[i]);
            biomeColors[i * 4] = bytes[0];
            biomeColors[i * 4 + 1] = bytes[1];
            biomeColors[i * 4 + 2] = bytes[2];
            biomeColors[i * 4 + 3] = bytes[3];
        }
        return Binary.appendBytes(Binary.writeLInt(this.getX()), Binary.writeLInt(this.getZ()), this.getBlockIdArray(), this.getBlockDataArray(), this.getBlockSkyLightArray(), this.getBlockLightArray(), heightMap, biomeColors, new byte[] { (byte) (((this.isLightPopulated ? 0x04 : 0) | (this.isPopulated() ? 0x02 : 0) | (this.isGenerated() ? 0x01 : 0)) & 0xff) });
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 13 with BinaryStream

use of cn.nukkit.utils.BinaryStream in project Nukkit by Nukkit.

the class Anvil method requestChunkTask.

@Override
public AsyncTask requestChunkTask(int x, int z) throws ChunkException {
    Chunk chunk = (Chunk) this.getChunk(x, z, false);
    if (chunk == null) {
        throw new ChunkException("Invalid Chunk Set");
    }
    long timestamp = chunk.getChanges();
    byte[] blockEntities = new byte[0];
    if (!chunk.getBlockEntities().isEmpty()) {
        List<CompoundTag> tagList = new ArrayList<>();
        for (BlockEntity blockEntity : chunk.getBlockEntities().values()) {
            if (blockEntity instanceof BlockEntitySpawnable) {
                tagList.add(((BlockEntitySpawnable) blockEntity).getSpawnCompound());
            }
        }
        try {
            blockEntities = NBTIO.write(tagList, ByteOrder.LITTLE_ENDIAN, true);
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
    Map<Integer, Integer> extra = chunk.getBlockExtraDataArray();
    BinaryStream extraData;
    if (!extra.isEmpty()) {
        extraData = new BinaryStream();
        extraData.putVarInt(extra.size());
        for (Map.Entry<Integer, Integer> entry : extra.entrySet()) {
            extraData.putVarInt(entry.getKey());
            extraData.putLShort(entry.getValue());
        }
    } else {
        extraData = null;
    }
    BinaryStream stream = ThreadCache.binaryStream.get().reset();
    int count = 0;
    cn.nukkit.level.format.ChunkSection[] sections = chunk.getSections();
    for (int i = sections.length - 1; i >= 0; i--) {
        if (!sections[i].isEmpty()) {
            count = i + 1;
            break;
        }
    }
    stream.putByte((byte) count);
    for (int i = 0; i < count; i++) {
        stream.putByte((byte) 0);
        stream.put(sections[i].getBytes());
    }
    for (byte height : chunk.getHeightMapArray()) {
        stream.putByte(height);
    }
    stream.put(PAD_256);
    stream.put(chunk.getBiomeIdArray());
    stream.putByte((byte) 0);
    if (extraData != null) {
        stream.put(extraData.getBuffer());
    } else {
        stream.putVarInt(0);
    }
    stream.put(blockEntities);
    this.getLevel().chunkRequestCallback(timestamp, x, z, stream.getBuffer());
    return null;
}