Examples with LevelProvider cn.nukkit.level.format.LevelProvider used on opensource projects

Example 1 with LevelProvider

use of cn.nukkit.level.format.LevelProvider in project Nukkit by Nukkit.

the class LevelProviderConverter method perform.

LevelProvider perform() throws IOException {
    new File(path).mkdir();
    File dat = new File(provider.getPath(), "level.dat.old");
    new File(provider.getPath(), "level.dat").renameTo(dat);
    Utils.copyFile(dat, new File(path, "level.dat"));
    LevelProvider result;
    try {
        if (provider instanceof LevelDB) {
            try (FileInputStream stream = new FileInputStream(path + "level.dat")) {
                stream.skip(8);
                CompoundTag levelData = NBTIO.read(stream, ByteOrder.LITTLE_ENDIAN);
                if (levelData != null) {
                    NBTIO.writeGZIPCompressed(new CompoundTag().putCompound("Data", levelData), new FileOutputStream(path + "level.dat"));
                } else {
                    throw new IOException("LevelData can not be null");
                }
            } catch (IOException e) {
                throw new LevelException("Invalid level.dat");
            }
        }
        result = toClass.getConstructor(Level.class, String.class).newInstance(level, path);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    if (toClass == Anvil.class) {
        if (provider instanceof McRegion) {
            new File(path, "region").mkdir();
            for (File file : new File(provider.getPath() + "region/").listFiles()) {
                Matcher m = Pattern.compile("-?\\d+").matcher(file.getName());
                int regionX, regionZ;
                try {
                    if (m.find()) {
                        regionX = Integer.parseInt(m.group());
                    } else
                        continue;
                    if (m.find()) {
                        regionZ = Integer.parseInt(m.group());
                    } else
                        continue;
                } catch (NumberFormatException e) {
                    continue;
                }
                RegionLoader region = new RegionLoader(provider, regionX, regionZ);
                for (Integer index : region.getLocationIndexes()) {
                    int chunkX = index & 0x1f;
                    int chunkZ = index >> 5;
                    BaseFullChunk old = region.readChunk(chunkX, chunkZ);
                    if (old == null)
                        continue;
                    int x = (regionX << 5) | chunkX;
                    int z = (regionZ << 5) | chunkZ;
                    FullChunk chunk = new ChunkConverter(result).from(old).to(Chunk.class).perform();
                    result.saveChunk(x, z, chunk);
                }
                region.close();
            }
        }
        if (provider instanceof LevelDB) {
            new File(path, "region").mkdir();
            for (byte[] key : ((LevelDB) provider).getTerrainKeys()) {
                int x = getChunkX(key);
                int z = getChunkZ(key);
                BaseFullChunk old = ((LevelDB) provider).readChunk(x, z);
                FullChunk chunk = new ChunkConverter(result).from(old).to(Chunk.class).perform();
                result.saveChunk(x, z, chunk);
            }
        }
        result.doGarbageCollection();
    }
    return result;
}

Example 2 with LevelProvider

use of cn.nukkit.level.format.LevelProvider in project Nukkit by Nukkit.

the class BaseFullChunk method unload.

@Override
public boolean unload(boolean save, boolean safe) {
    LevelProvider level = this.getProvider();
    if (level == null) {
        return true;
    }
    if (save && this.changes != 0) {
        level.saveChunk(this.getX(), this.getZ());
    }
    if (safe) {
        for (Entity entity : this.getEntities().values()) {
            if (entity instanceof Player) {
                return false;
            }
        }
    }
    for (Entity entity : new ArrayList<>(this.getEntities().values())) {
        if (entity instanceof Player) {
            continue;
        }
        entity.close();
    }
    for (BlockEntity blockEntity : new ArrayList<>(this.getBlockEntities().values())) {
        blockEntity.close();
    }
    this.provider = null;
    return true;
}

Example 3 with LevelProvider

use of cn.nukkit.level.format.LevelProvider 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);
    }
}