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Support Sponge Schematic v3 (#2776)

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* Update to Sponge Schematic 3

Includes a major refactoring of how schematics are read.

(cherry picked from commit bd475b1d4acbcf2a95e5a8f3aee50d2fb2100ae8)

* Licenses lol

(cherry picked from commit a5ce8a47657aa987da8ca625cd658856d2eb3477)

* Fix imports

(cherry picked from commit e1892b7bd4ff0ca4592f8cb4e1b2d9363c4cd6ff)

* Update for final changes

(cherry picked from commit 2f6b50a4276b33b615d9dbc52e73e958308735f9)

* chore: ensure flushed clipboard in spongev2 writer

* feat: initial work on FastSchematicWriterV2

* fix: only write into palette once, write into data as varint

* chore: more work on FastSchematicWriterV3

* fix: make FastSchematicWriterV3 work

* fix/chore: write pos as doubles

* chore: start on reader (class exists at least)

* chore: replace while loop with simple if as char can be max 2 bytes

* chore/feat: more work on the fast v3 reader

* fix: offset must be inverted for origin

* chore: use the actual FileChannel for mark / reset (if present)

* chore: add null check again

* chore: buffer streams in isFormat check

* chore/feat: read schematic fully

* chore: don't hold a lazyreference (seems harder to gc with already computed value?)

* chore: remove debugs

* chore: optimize FastSchematicReaderV3

* chore: remove logger warn for now

* chore: constant not required anymore

* chore/feat: support non-file based inputstreams (using in memory LZ4 cache)

* chore: don't wrap streams unnecessary

* chore: cleanup

* chore: since comment for reader + writer

* chore: FAST_V3 not for testing anymore

* chore: update schematic and clipboard logic for linbus changes

* chore: undo format check on load

* fix: remove usages of old nbt types

* fix: use LinBus in FaweDelegateSchematicHandler

* fix: use ReaderUtil again

* chore: update supported schematic types for Arkitektonika

* chore: check for magic bytes in schematic (not tested yet)

* revert: magic bytes check

* fix: fix paletteAlreadyInitialized + biome placement on linear clipboards

* Update worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicWriterV3.java

---------

Co-authored-by: Octavia Togami <octavia.togami@gmail.com>
Co-authored-by: Hannes Greule <SirYwell@users.noreply.github.com>
This commit is contained in:
Pierre Maurice Schwang 2024-07-13 14:30:34 +02:00 committed by GitHub
parent 514da16d19
commit 1ec87e7092
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
25 changed files with 2815 additions and 635 deletions
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16
worldedit-bukkit/src/main/java/com/fastasyncworldedit/bukkit/regions/plotsquared/FaweDelegateSchematicHandler.java
View File

@ -3,8 +3,8 @@ package com.fastasyncworldedit.bukkit.regions.plotsquared;
import com.fastasyncworldedit.core.Fawe;
import com.fastasyncworldedit.core.FaweAPI;
import com.fastasyncworldedit.core.FaweCache;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicReader;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriter;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicReaderV2;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriterV2;
import com.fastasyncworldedit.core.jnbt.CompressedCompoundTag;
import com.fastasyncworldedit.core.jnbt.CompressedSchematicTag;
import com.fastasyncworldedit.core.util.IOUtil;
@ -29,17 +29,19 @@ import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.BuiltInClipboardFormat;
import com.sk89q.worldedit.extent.clipboard.io.MCEditSchematicReader;
import com.sk89q.worldedit.extent.clipboard.io.SpongeSchematicReader;
import com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV3Reader;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.CuboidRegion;
import net.jpountz.lz4.LZ4BlockInputStream;
import org.anarres.parallelgzip.ParallelGZIPOutputStream;
import org.apache.logging.log4j.Logger;
import org.enginehub.linbus.stream.LinBinaryIO;
import javax.annotation.Nonnull;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.EOFException;
import java.io.File;
import java.io.FileNotFoundException;
@ -182,7 +184,7 @@ public class FaweDelegateSchematicHandler {
try (OutputStream stream = new FileOutputStream(tmp);
NBTOutputStream output = new NBTOutputStream(
new BufferedOutputStream(new ParallelGZIPOutputStream(stream)))) {
new FastSchematicWriter(output).write(clipboard);
new FastSchematicWriterV2(output).write(clipboard);
}
} else {
try (OutputStream stream = new FileOutputStream(tmp);
@ -239,7 +241,7 @@ public class FaweDelegateSchematicHandler {
public Schematic getSchematic(@Nonnull InputStream is) {
try {
FastSchematicReader schematicReader = new FastSchematicReader(
FastSchematicReaderV2 schematicReader = new FastSchematicReaderV2(
new NBTInputStream(new BufferedInputStream(new GZIPInputStream(new BufferedInputStream(is)))));
Clipboard clip = schematicReader.read();
return new Schematic(clip);
@ -249,8 +251,8 @@ public class FaweDelegateSchematicHandler {
return null;
}
try {
SpongeSchematicReader schematicReader =
new SpongeSchematicReader(new NBTInputStream(new GZIPInputStream(is)));
SpongeSchematicV3Reader schematicReader =
new SpongeSchematicV3Reader(LinBinaryIO.read(new DataInputStream(new GZIPInputStream(is))));
Clipboard clip = schematicReader.read();
return new Schematic(clip);
} catch (IOException e2) {

4
worldedit-bukkit/src/main/java/com/fastasyncworldedit/bukkit/util/DoNotMiniseThese.java
View File

@ -1,6 +1,8 @@
package com.fastasyncworldedit.bukkit.util;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import it.unimi.dsi.fastutil.io.FastBufferedInputStream;
import it.unimi.dsi.fastutil.io.FastBufferedOutputStream;
import it.unimi.dsi.fastutil.longs.Long2ObjectLinkedOpenHashMap;
import it.unimi.dsi.fastutil.longs.LongArraySet;
import it.unimi.dsi.fastutil.longs.LongIterator;
@ -19,5 +21,7 @@ final class DoNotMiniseThese {
private final LongSet d = null;
private final Int2ObjectMap<?> e = null;
private final Object2ObjectArrayMap<?, ?> f = null;
private final FastBufferedInputStream g = null;
private final FastBufferedOutputStream h = null;
}

4
worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicReader.java → worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicReaderV2.java
View File

@ -53,7 +53,7 @@ import static com.google.common.base.Preconditions.checkNotNull;
/**
* Reads schematic files using the Sponge Schematic Specification.
*/
public class FastSchematicReader extends NBTSchematicReader {
public class FastSchematicReaderV2 extends NBTSchematicReader {
private static final Logger LOGGER = LogManagerCompat.getLogger();
private final NBTInputStream inputStream;
@ -88,7 +88,7 @@ public class FastSchematicReader extends NBTSchematicReader {
*
* @param inputStream the input stream to read from
*/
public FastSchematicReader(NBTInputStream inputStream) {
public FastSchematicReaderV2(NBTInputStream inputStream) {
checkNotNull(inputStream);
this.inputStream = inputStream;
this.fixer = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataFixer();

818
worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicReaderV3.java Normal file
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@ -0,0 +1,818 @@
package com.fastasyncworldedit.core.extent.clipboard.io;
import com.fastasyncworldedit.core.extent.clipboard.LinearClipboard;
import com.fastasyncworldedit.core.extent.clipboard.SimpleClipboard;
import com.fastasyncworldedit.core.internal.io.ResettableFileInputStream;
import com.fastasyncworldedit.core.internal.io.VarIntStreamIterator;
import com.fastasyncworldedit.core.math.MutableBlockVector3;
import com.fastasyncworldedit.core.util.IOUtil;
import com.fastasyncworldedit.core.util.MathMan;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.NBTConstants;
import com.sk89q.jnbt.NBTInputStream;
import com.sk89q.jnbt.NBTOutputStream;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.extension.input.InputParseException;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
import com.sk89q.worldedit.extent.clipboard.io.sponge.ReaderUtil;
import com.sk89q.worldedit.extent.clipboard.io.sponge.VersionedDataFixer;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.util.concurrency.LazyReference;
import com.sk89q.worldedit.world.DataFixer;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.biome.BiomeTypes;
import com.sk89q.worldedit.world.block.BlockState;
import com.sk89q.worldedit.world.block.BlockTypes;
import com.sk89q.worldedit.world.block.BlockTypesCache;
import com.sk89q.worldedit.world.entity.EntityType;
import it.unimi.dsi.fastutil.io.FastBufferedInputStream;
import it.unimi.dsi.fastutil.io.FastBufferedOutputStream;
import net.jpountz.lz4.LZ4BlockInputStream;
import net.jpountz.lz4.LZ4BlockOutputStream;
import org.apache.logging.log4j.Logger;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.checkerframework.checker.nullness.qual.Nullable;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.jetbrains.annotations.ApiStatus;
import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.HashSet;
import java.util.Map;
import java.util.Objects;
import java.util.OptionalInt;
import java.util.Set;
import java.util.UUID;
import java.util.function.BooleanSupplier;
import java.util.function.Function;
import java.util.zip.GZIPInputStream;
/**
* ClipboardReader for the Sponge Schematic Format v3.
* Not necessarily much faster than {@link com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV3Reader}, but uses a
* stream based approach to keep the memory overhead minimal (especially in larger schematics)
*
* @since TODO
*/
@SuppressWarnings("removal") // JNBT
public class FastSchematicReaderV3 implements ClipboardReader {
private static final Logger LOGGER = LogManagerCompat.getLogger();
private static final byte CACHE_IDENTIFIER_END = 0x00;
private static final byte CACHE_IDENTIFIER_BLOCK = 0x01;
private static final byte CACHE_IDENTIFIER_BIOMES = 0x02;
private static final byte CACHE_IDENTIFIER_ENTITIES = 0x03;
private static final byte CACHE_IDENTIFIER_BLOCK_TILE_ENTITIES = 0x04;
private final InputStream parentStream;
private final MutableBlockVector3 dimensions = MutableBlockVector3.at(0, 0, 0);
private final Set<Byte> remainingTags;
private DataInputStream dataInputStream;
private NBTInputStream nbtInputStream;
private VersionedDataFixer dataFixer;
private BlockVector3 offset;
private BlockState[] blockPalette;
private BiomeType[] biomePalette;
private int dataVersion = -1;
// Only used if the InputStream is not file based (and therefor does not support resets based on FileChannels)
// and the file is unordered
// Data and Palette cache is separated, as the data requires a fully populated palette - and the order is not guaranteed
private byte[] dataCache;
private byte[] paletteCache;
private OutputStream dataCacheWriter;
private OutputStream paletteCacheWriter;
public FastSchematicReaderV3(@NonNull InputStream stream) {
Objects.requireNonNull(stream, "stream");
if (stream instanceof ResettableFileInputStream) {
stream.mark(Integer.MAX_VALUE);
this.remainingTags = new HashSet<>();
} else if (stream instanceof FileInputStream fileInputStream) {
stream = new ResettableFileInputStream(fileInputStream);
stream.mark(Integer.MAX_VALUE);
this.remainingTags = new HashSet<>();
} else if (stream instanceof FastBufferedInputStream || stream instanceof BufferedInputStream) {
this.remainingTags = null;
} else {
stream = new FastBufferedInputStream(stream);
this.remainingTags = null;
}
this.parentStream = stream;
}
@Override
public Clipboard read(final UUID uuid, final Function<BlockVector3, Clipboard> createOutput) throws IOException {
Clipboard clipboard = null;
this.setSubStreams();
skipHeader(this.dataInputStream);
byte type;
String tag;
while ((type = dataInputStream.readByte()) != NBTConstants.TYPE_END) {
tag = this.dataInputStream.readUTF();
switch (tag) {
case "DataVersion" -> {
final Platform platform =
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING);
this.dataVersion = this.dataInputStream.readInt();
this.dataFixer = ReaderUtil.getVersionedDataFixer(this.dataVersion, platform, platform.getDataVersion());
}
case "Offset" -> {
this.dataInputStream.skipNBytes(4); // Array Length field (4 byte int)
this.offset = BlockVector3.at(
this.dataInputStream.readInt(),
this.dataInputStream.readInt(),
this.dataInputStream.readInt()
);
}
case "Width" -> this.dimensions.mutX(this.dataInputStream.readShort() & 0xFFFF);
case "Height" -> this.dimensions.mutY(this.dataInputStream.readShort() & 0xFFFF);
case "Length" -> this.dimensions.mutZ(this.dataInputStream.readShort() & 0xFFFF);
case "Blocks" -> readBlocks(clipboard);
case "Biomes" -> readBiomes(clipboard);
case "Entities" -> readEntities(clipboard);
default -> this.nbtInputStream.readTagPayloadLazy(type, 0);
}
if (clipboard == null && this.areDimensionsAvailable()) {
clipboard = createOutput.apply(this.dimensions);
}
}
if (clipboard == null) {
throw new IOException("Invalid schematic - missing dimensions");
}
if (dataFixer == null) {
throw new IOException("Invalid schematic - missing DataVersion");
}
if (this.supportsReset() && !remainingTags.isEmpty()) {
readRemainingDataReset(clipboard);
} else if (this.dataCacheWriter != null || this.paletteCacheWriter != null) {
readRemainingDataCache(clipboard);
}
clipboard.setOrigin(this.offset.multiply(-1));
if (clipboard instanceof SimpleClipboard simpleClipboard && !this.offset.equals(BlockVector3.ZERO)) {
clipboard = new BlockArrayClipboard(simpleClipboard, this.offset);
}
return clipboard;
}
/**
* Reads all locally cached data (due to reset not being available) and applies them to the clipboard.
* <p>
* Firstly, closes all cache writers (which adds the END identifier to each and fills the cache byte arrays on this instance)
* If required, creates all missing palettes first (as needed by all remaining data).
* At last writes all missing data (block states, tile entities, biomes, entities).
*
* @param clipboard The clipboard to write into.
* @throws IOException on I/O error.
*/
private void readRemainingDataCache(Clipboard clipboard) throws IOException {
byte identifier;
if (this.paletteCacheWriter != null) {
this.paletteCacheWriter.close();
}
if (this.dataCacheWriter != null) {
this.dataCacheWriter.close();
}
if (this.paletteCache != null) {
try (final DataInputStream cacheStream = new DataInputStream(new FastBufferedInputStream(
new LZ4BlockInputStream(new FastBufferedInputStream(new ByteArrayInputStream(this.paletteCache)))))) {
while ((identifier = cacheStream.readByte()) != CACHE_IDENTIFIER_END) {
if (identifier == CACHE_IDENTIFIER_BLOCK) {
this.readPaletteMap(cacheStream, this.provideBlockPaletteInitializer());
continue;
}
if (identifier == CACHE_IDENTIFIER_BIOMES) {
this.readPaletteMap(cacheStream, this.provideBiomePaletteInitializer());
continue;
}
throw new IOException("invalid cache state - got identifier: 0x" + identifier);
}
}
}
try (final DataInputStream cacheStream = new DataInputStream(new FastBufferedInputStream(
new LZ4BlockInputStream(new FastBufferedInputStream(new ByteArrayInputStream(this.dataCache)))));
final NBTInputStream cacheNbtIn = new NBTInputStream(cacheStream)) {
while ((identifier = cacheStream.readByte()) != CACHE_IDENTIFIER_END) {
switch (identifier) {
case CACHE_IDENTIFIER_BLOCK -> this.readPaletteData(cacheStream, this.getBlockWriter(clipboard));
case CACHE_IDENTIFIER_BIOMES -> this.readPaletteData(cacheStream, this.getBiomeWriter(clipboard));
case CACHE_IDENTIFIER_ENTITIES -> {
cacheStream.skipNBytes(1); // list child type (TAG_Compound)
this.readEntityContainers(
cacheStream,
cacheNbtIn,
DataFixer.FixTypes.ENTITY,
this.provideEntityTransformer(clipboard)
);
}
case CACHE_IDENTIFIER_BLOCK_TILE_ENTITIES -> {
cacheStream.skipNBytes(1); // list child type (TAG_Compound)
this.readEntityContainers(
cacheStream,
cacheNbtIn,
DataFixer.FixTypes.BLOCK_ENTITY,
this.provideTileEntityTransformer(clipboard)
);
}
default -> throw new IOException("invalid cache state - got identifier: 0x" + identifier);
}
}
}
}
/**
* Reset the main stream of this clipboard and reads all remaining data that could not be read or fixed yet.
* Might need two iterations if the DataVersion tag is after the Blocks tag while the Palette inside the Blocks tag is not
* at the first position.
*
* @param clipboard The clipboard to write into.
* @throws IOException on I/O error.
*/
private void readRemainingDataReset(Clipboard clipboard) throws IOException {
byte type;
String tag;
outer:
while (!this.remainingTags.isEmpty()) {
this.reset();
skipHeader(this.dataInputStream);
while ((type = dataInputStream.readByte()) != NBTConstants.TYPE_END) {
tag = dataInputStream.readUTF();
byte b = tag.equals("Blocks") ? CACHE_IDENTIFIER_BLOCK :
tag.equals("Biomes") ? CACHE_IDENTIFIER_BIOMES :
tag.equals("Entities") ? CACHE_IDENTIFIER_ENTITIES :
CACHE_IDENTIFIER_END;
if (!this.remainingTags.remove(b)) {
this.nbtInputStream.readTagPayloadLazy(type, 0);
continue;
}
switch (tag) {
case "Blocks" -> readBlocks(clipboard);
case "Biomes" -> readBiomes(clipboard);
case "Entities" -> readEntities(clipboard);
default -> this.nbtInputStream.readTagPayloadLazy(type, 0); // Should never happen, but just in case
}
if (this.remainingTags.isEmpty()) {
break outer;
}
}
}
}
/**
* {@inheritDoc}
* <p>
* Requires {@link #read()}, {@link #read(UUID)} or {@link #read(UUID, Function)} to be called before.
*/
@Override
public OptionalInt getDataVersion() {
return this.dataVersion > -1 ? OptionalInt.of(this.dataVersion) : OptionalInt.empty();
}
private void readBlocks(Clipboard target) throws IOException {
this.blockPalette = new BlockState[BlockTypesCache.states.length];
readPalette(
target != null,
CACHE_IDENTIFIER_BLOCK,
() -> this.blockPalette[0] != null,
this.provideBlockPaletteInitializer(),
this.getBlockWriter(target),
(type, tag) -> {
if (!tag.equals("BlockEntities")) {
try {
this.nbtInputStream.readTagPayloadLazy(NBTConstants.TYPE_LIST, 0);
} catch (IOException e) {
LOGGER.error("Failed to skip additional tag", e);
}
return;
}
try {
this.readTileEntities(target);
} catch (IOException e) {
LOGGER.warn("Failed to read tile entities", e);
}
}
);
}
private void readBiomes(Clipboard target) throws IOException {
this.biomePalette = new BiomeType[BiomeType.REGISTRY.size()];
readPalette(
target != null,
CACHE_IDENTIFIER_BIOMES,
() -> this.biomePalette[0] != null,
this.provideBiomePaletteInitializer(),
this.getBiomeWriter(target),
(type, tag) -> {
try {
this.nbtInputStream.readTagPayloadLazy(type, 0);
} catch (IOException e) {
LOGGER.error("Failed to skip additional tag in biome container: {}", tag, e);
}
}
);
}
private void readEntities(@Nullable Clipboard target) throws IOException {
if (target == null || this.dataFixer == null) {
if (supportsReset()) {
this.remainingTags.add(CACHE_IDENTIFIER_ENTITIES);
this.nbtInputStream.readTagPayloadLazy(NBTConstants.TYPE_LIST, 0);
return;
}
// Easier than streaming for now
final NBTOutputStream cacheStream = new NBTOutputStream(this.getDataCacheWriter());
cacheStream.writeByte(CACHE_IDENTIFIER_ENTITIES);
cacheStream.writeTagPayload(this.nbtInputStream.readTagPayload(NBTConstants.TYPE_LIST, 0));
return;
}
if (this.dataInputStream.read() != NBTConstants.TYPE_COMPOUND) {
throw new IOException("Expected a compound block for entity");
}
this.readEntityContainers(
this.dataInputStream, this.nbtInputStream, DataFixer.FixTypes.ENTITY, this.provideEntityTransformer(target)
);
}
private void readTileEntities(Clipboard target) throws IOException {
if (target == null || this.dataFixer == null) {
if (supportsReset()) {
this.remainingTags.add(CACHE_IDENTIFIER_BLOCK); // use block identifier, as this method will be called by
// readBlocks again
this.nbtInputStream.readTagPayloadLazy(NBTConstants.TYPE_LIST, 0);
return;
}
// Easier than streaming for now
final NBTOutputStream cacheStream = new NBTOutputStream(this.getDataCacheWriter());
cacheStream.writeByte(CACHE_IDENTIFIER_BLOCK_TILE_ENTITIES);
cacheStream.writeTagPayload(this.nbtInputStream.readTagPayload(NBTConstants.TYPE_LIST, 0));
return;
}
if (this.dataInputStream.read() != NBTConstants.TYPE_COMPOUND) {
throw new IOException("Expected a compound block for tile entity");
}
this.readEntityContainers(
this.dataInputStream,
this.nbtInputStream,
DataFixer.FixTypes.BLOCK_ENTITY,
this.provideTileEntityTransformer(target)
);
}
private void readEntityContainers(
DataInputStream stream,
NBTInputStream nbtStream,
DataFixer.FixType<LinCompoundTag> fixType,
EntityTransformer transformer
) throws IOException {
double x, y, z;
LinCompoundTag tag;
String id;
byte type;
int count = stream.readInt();
while (count-- > 0) {
x = -1;
y = -1;
z = -1;
tag = null;
id = null;
while ((type = stream.readByte()) != NBTConstants.TYPE_END) {
switch (type) {
// Depending on the type of entity container (tile vs "normal") the pos consists of either doubles or ints
case NBTConstants.TYPE_INT_ARRAY -> {
if (!stream.readUTF().equals("Pos")) {
throw new IOException("Expected INT_ARRAY tag to be Pos");
}
stream.skipNBytes(4); // count of following ints - for pos = 3
x = stream.readInt();
y = stream.readInt();
z = stream.readInt();
}
case NBTConstants.TYPE_LIST -> {
if (!stream.readUTF().equals("Pos")) {
throw new IOException("Expected LIST tag to be Pos");
}
if (stream.readByte() != NBTConstants.TYPE_DOUBLE) {
throw new IOException("Expected LIST Pos tag to contain DOUBLE");
}
stream.skipNBytes(4); // count of following doubles - for pos = 3
x = stream.readDouble();
y = stream.readDouble();
z = stream.readDouble();
}
case NBTConstants.TYPE_STRING -> {
if (!stream.readUTF().equals("Id")) {
throw new IOException("Expected STRING tag to be Id");
}
id = stream.readUTF();
}
case NBTConstants.TYPE_COMPOUND -> {
if (!stream.readUTF().equals("Data")) {
throw new IOException("Expected COMPOUND tag to be Data");
}
if (!(nbtStream.readTagPayload(NBTConstants.TYPE_COMPOUND, 0).toLinTag() instanceof LinCompoundTag lin)) {
throw new IOException("Data tag could not be read into LinCompoundTag");
}
tag = lin;
}
default -> throw new IOException("Unexpected tag in compound: " + type);
}
}
if (id == null) {
throw new IOException("Missing Id tag in compound");
}
if (x < 0 || y < 0 || z < 0) {
throw new IOException("Missing position for entity " + id);
}
if (tag == null) {
transformer.transform(x, y, z, id, LinCompoundTag.of(Map.of()));
continue;
}
tag = this.dataFixer.fixUp(fixType, tag);
if (tag == null) {
LOGGER.warn("Failed to fix-up entity for {} @ {},{},{} - skipping", id, x, y, z);
continue;
}
transformer.transform(x, y, z, id, tag);
}
}
/**
* The `Palette` tag is required first, as that contains the information of the actual palette size.
* Keeping the whole Data block in memory - which *could* be compressed - is just not it
*
* @param paletteInitializer Invoked for each 'Palette' entry using the actual palette value (e.g. block state) + index
* @param paletteDataApplier Invoked for each 'Data' entry using the data index and the palette index at the data index
*/
private void readPalette(
boolean hasClipboard,
byte paletteType,
BooleanSupplier paletteAlreadyInitialized,
PaletteInitializer paletteInitializer,
PaletteDataApplier paletteDataApplier,
AdditionalTagConsumer additionalTag
) throws IOException {
boolean hasPalette = paletteAlreadyInitialized.getAsBoolean();
byte type;
String tag;
while ((type = this.dataInputStream.readByte()) != NBTConstants.TYPE_END) {
tag = this.dataInputStream.readUTF();
if (tag.equals("Palette")) {
if (hasPalette) {
// Skip palette, as already exists
this.nbtInputStream.readTagPayloadLazy(NBTConstants.TYPE_COMPOUND, 0);
continue;
}
if (!this.readPaletteMap(this.dataInputStream, paletteInitializer)) {
if (this.supportsReset()) {
// Couldn't read - skip palette for now
this.remainingTags.add(paletteType);
this.nbtInputStream.readTagPayloadLazy(NBTConstants.TYPE_COMPOUND, 0);
continue;
}
// Reset not possible, write into cache
final NBTOutputStream cacheWriter = new NBTOutputStream(this.getPaletteCacheWriter());
cacheWriter.write(paletteType);
cacheWriter.writeTagPayload(this.nbtInputStream.readTagPayload(NBTConstants.TYPE_COMPOUND, 0));
continue;
}
hasPalette = true;
continue;
}
if (tag.equals("Data")) {
// No palette or dimensions are yet available
if (!hasPalette || this.dataFixer == null || !hasClipboard) {
if (this.supportsReset()) {
this.remainingTags.add(paletteType);
this.nbtInputStream.readTagPayloadLazy(NBTConstants.TYPE_BYTE_ARRAY, 0);
continue;
}
// Reset not possible, write into cache
int byteLen = this.dataInputStream.readInt();
final DataOutputStream cacheWriter = new DataOutputStream(this.getDataCacheWriter());
cacheWriter.write(paletteType);
cacheWriter.writeInt(byteLen);
IOUtil.copy(this.dataInputStream, cacheWriter, byteLen);
continue;
}
this.readPaletteData(this.dataInputStream, paletteDataApplier);
continue;
}
additionalTag.accept(type, tag);
}
}
private void readPaletteData(DataInputStream stream, PaletteDataApplier applier) throws IOException {
int length = stream.readInt();
// Write data into clipboard
int i = 0;
if (needsVarIntReading(length)) {
for (var iter = new VarIntStreamIterator(stream, length); iter.hasNext(); i++) {
applier.apply(i, (char) iter.nextInt());
}
return;
}
while (i < length) {
applier.apply(i++, (char) stream.readUnsignedByte());
}
}
/**
* Reads the CompoundTag containing the palette mapping ({@code index: value}) and passes each entry to the
* {@link PaletteInitializer}.
* <p>
* This method expects that the identifier ({@link NBTConstants#TYPE_COMPOUND}) is already consumed from the stream.
*
* @param stream The stream to read the data from.
* @param initializer The initializer called for each entry with its index and backed value.
* @return {@code true} if the mapping could be read, {@code false} otherwise (e.g. DataFixer is not yet available).
* @throws IOException on I/O error.
*/
private boolean readPaletteMap(DataInputStream stream, PaletteInitializer initializer) throws IOException {
if (this.dataFixer == null) {
return false;
}
while (stream.readByte() != NBTConstants.TYPE_END) {
String value = stream.readUTF();
char index = (char) stream.readInt();
initializer.initialize(index, value);
}
return true;
}
private void indexToPosition(int index, PositionConsumer supplier) {
int y = index / (dimensions.x() * dimensions.z());
int remainder = index - (y * dimensions.x() * dimensions.z());
int z = remainder / dimensions.x();
int x = remainder - z * dimensions.x();
supplier.accept(x, y, z);
}
private PaletteDataApplier getBlockWriter(Clipboard target) {
if (target instanceof LinearClipboard linearClipboard) {
return (index, ordinal) -> linearClipboard.setBlock(index, this.blockPalette[ordinal]);
}
return (index, ordinal) -> indexToPosition(index, (x, y, z) -> target.setBlock(x, y, z, this.blockPalette[ordinal]));
}
private PaletteDataApplier getBiomeWriter(Clipboard target) {
return (index, ordinal) -> indexToPosition(index, (x, y, z) -> target.setBiome(x, y, z, this.biomePalette[ordinal]));
}
private PaletteInitializer provideBlockPaletteInitializer() {
return (index, value) -> {
if (this.dataFixer == null) {
throw new IllegalStateException("Can't read block palette map if DataFixer is not yet available");
}
value = dataFixer.fixUp(DataFixer.FixTypes.BLOCK_STATE, value);
try {
this.blockPalette[index] = BlockState.get(value);
} catch (InputParseException e) {
LOGGER.warn("Invalid BlockState in palette: {}. Block will be replaced with air.", value);
this.blockPalette[index] = BlockTypes.AIR.getDefaultState();
}
};
}
private PaletteInitializer provideBiomePaletteInitializer() {
return (index, value) -> {
if (this.dataFixer == null) {
throw new IllegalStateException("Can't read biome palette map if DataFixer is not yet available");
}
value = dataFixer.fixUp(DataFixer.FixTypes.BIOME, value);
BiomeType biomeType = BiomeTypes.get(value);
if (biomeType == null) {
biomeType = BiomeTypes.PLAINS;
LOGGER.warn("Invalid biome type in palette: {}. Biome will be replaced with plains.", value);
}
this.biomePalette[index] = biomeType;
};
}
private EntityTransformer provideEntityTransformer(Clipboard clipboard) {
return (x, y, z, id, tag) -> {
EntityType type = EntityType.REGISTRY.get(id);
if (type == null) {
LOGGER.warn("Invalid entity id: {} - skipping", id);
return;
}
clipboard.createEntity(
new Location(clipboard, Location.at(x, y, z).add(clipboard.getMinimumPoint().toVector3())),
new BaseEntity(type, LazyReference.computed(tag))
);
};
}
private EntityTransformer provideTileEntityTransformer(Clipboard clipboard) {
//noinspection deprecation
return (x, y, z, id, tag) -> clipboard.setTile(
MathMan.roundInt(x + clipboard.getMinimumPoint().x()),
MathMan.roundInt(y + clipboard.getMinimumPoint().y()),
MathMan.roundInt(z + clipboard.getMinimumPoint().z()),
new CompoundTag(tag)
);
}
/**
* @return {@code true} if {@code Width}, {@code Length} and {@code Height} are already read from the stream
*/
private boolean areDimensionsAvailable() {
return this.dimensions.x() != 0 && this.dimensions.y() != 0 && this.dimensions.z() != 0;
}
/**
* Closes this reader instance and all underlying resources.
*
* @throws IOException on I/O error.
*/
@Override
public void close() throws IOException {
parentStream.close(); // closes all underlying resources implicitly
}
/**
* Resets the main stream to the previously marked position ({@code 0}), if supported (see {@link #supportsReset()}).
* If the stream is reset, the sub streams (for DataInput and NBT) are re-created to respect the new position.
*
* @throws IOException on I/O error.
*/
private void reset() throws IOException {
if (this.supportsReset()) {
this.parentStream.reset();
this.parentStream.mark(Integer.MAX_VALUE);
this.setSubStreams();
}
}
/**
* @return {@code true} if the stream used while instantiating the reader supports resets (without memory overhead).
*/
private boolean supportsReset() {
return this.remainingTags != null;
}
/**
* Overwrites the DataInput- and NBT-InputStreams (e.g. when the marker of the backed stream updated).
*
* @throws IOException on I/O error.
*/
private void setSubStreams() throws IOException {
final FastBufferedInputStream buffer = new FastBufferedInputStream(new GZIPInputStream(this.parentStream));
this.dataInputStream = new DataInputStream(buffer);
this.nbtInputStream = new NBTInputStream(buffer);
}
/**
* Creates a new cache writer for non-palette data, if none exists yet.
* Returns either the already created or new one.
*
* @return the output stream for non-palette cache data.
*/
private OutputStream getDataCacheWriter() {
if (this.dataCacheWriter == null) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(512);
this.dataCacheWriter = new FastBufferedOutputStream(new LZ4BlockOutputStream(byteArrayOutputStream)) {
@Override
public void close() throws IOException {
this.write(CACHE_IDENTIFIER_END);
super.close();
FastSchematicReaderV3.this.dataCache = byteArrayOutputStream.toByteArray();
}
};
}
return this.dataCacheWriter;
}
/**
* Creates a new cache writer for palette data, if none exists yet.
* Returns either the already created or new one.
*
* @return the output stream for palette cache data.
*/
private OutputStream getPaletteCacheWriter() {
if (this.paletteCacheWriter == null) {
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream(256);
this.paletteCacheWriter = new FastBufferedOutputStream(new LZ4BlockOutputStream(byteArrayOutputStream)) {
@Override
public void close() throws IOException {
this.write(CACHE_IDENTIFIER_END);
super.close();
FastSchematicReaderV3.this.paletteCache = byteArrayOutputStream.toByteArray();
}
};
}
return this.paletteCacheWriter;
}
private boolean needsVarIntReading(int byteArrayLength) {
return byteArrayLength > this.dimensions.x() * this.dimensions.y() * this.dimensions.z();
}
/**
* Skips the schematic header including the root compound (empty name) and the root's child compound ("Schematic")
*
* @param dataInputStream The stream containing the schematic data to skip
* @throws IOException on I/O error
*/
private static void skipHeader(DataInputStream dataInputStream) throws IOException {
dataInputStream.skipNBytes(1 + 2); // 1 Byte = TAG_Compound, 2 Bytes = Short (Length of tag name = "")
dataInputStream.skipNBytes(1 + 2 + 9); // as above + 9 bytes = "Schematic"
}
@ApiStatus.Internal
@FunctionalInterface
private interface PositionConsumer {
/**
* Called with block location coordinates.
*
* @param x the x coordinate.
* @param y the y coordinate.
* @param z the z coordinate.
*/
void accept(int x, int y, int z);
}
@ApiStatus.Internal
@FunctionalInterface
private interface EntityTransformer {
/**
* Called for each entity from the Schematics {@code Entities} compound list.
*
* @param x the relative x coordinate of the entity.
* @param y the relative y coordinate of the entity.
* @param z the relative z coordinate of the entity.
* @param id the entity id as a resource location (e.g. {@code minecraft:sheep}).
* @param tag the - already fixed, if required - nbt data of the entity.
*/
void transform(double x, double y, double z, String id, LinCompoundTag tag);
}
@ApiStatus.Internal
@FunctionalInterface
private interface PaletteInitializer {
/**
* Called for each palette entry (the mapping part, not data).
*
* @param index the index of the entry, as used in the Data byte array.
* @param value the value for this entry (either biome type as resource location or the block state as a string).
*/
void initialize(char index, String value);
}
@ApiStatus.Internal
@FunctionalInterface
private interface PaletteDataApplier {
/**
* Called for each palette data entry (not the mapping part, but the var-int byte array).
*
* @param index The index of this data entry (due to var-int behaviour not necessarily the index in the data byte array).
* @param ordinal The ordinal of this entry as defined in the palette mapping.
*/
void apply(int index, char ordinal);
}
@ApiStatus.Internal
@FunctionalInterface
private interface AdditionalTagConsumer {
/**
* Called for each unknown nbt tag.
*
* @param type The type of the tag (as defined by the constants in {@link NBTConstants}).
* @param name The name of the tag.
*/
void accept(byte type, String name);
}
}

8
worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicWriter.java → worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicWriterV2.java
View File

@ -48,9 +48,9 @@ import static com.google.common.base.Preconditions.checkNotNull;
/**
* Writes schematic files using the Sponge schematic format.
*/
public class FastSchematicWriter implements ClipboardWriter {
public class FastSchematicWriterV2 implements ClipboardWriter {
private static final int CURRENT_VERSION = 2;
public static final int CURRENT_VERSION = 2;
private static final int MAX_SIZE = Short.MAX_VALUE - Short.MIN_VALUE;
private final NBTOutputStream outputStream;
@ -61,7 +61,7 @@ public class FastSchematicWriter implements ClipboardWriter {
*
* @param outputStream the output stream to write to
*/
public FastSchematicWriter(NBTOutputStream outputStream) {
public FastSchematicWriterV2(NBTOutputStream outputStream) {
checkNotNull(outputStream);
this.outputStream = outputStream;
}
@ -103,11 +103,11 @@ public class FastSchematicWriter implements ClipboardWriter {
final DataOutput rawStream = outputStream.getOutputStream();
outputStream.writeLazyCompoundTag("Schematic", out -> {
out.writeNamedTag("Version", CURRENT_VERSION);
out.writeNamedTag(
"DataVersion",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataVersion()
);
out.writeNamedTag("Version", CURRENT_VERSION);
out.writeNamedTag("Width", (short) width);
out.writeNamedTag("Height", (short) height);
out.writeNamedTag("Length", (short) length);

295
worldedit-core/src/main/java/com/fastasyncworldedit/core/extent/clipboard/io/FastSchematicWriterV3.java Normal file
View File

@ -0,0 +1,295 @@
package com.fastasyncworldedit.core.extent.clipboard.io;
import com.fastasyncworldedit.core.function.visitor.Order;
import com.fastasyncworldedit.core.util.IOUtil;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.NBTConstants;
import com.sk89q.jnbt.NBTOutputStream;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.entity.Entity;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardWriter;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.block.BaseBlock;
import com.sk89q.worldedit.world.block.BlockStateHolder;
import com.sk89q.worldedit.world.block.BlockTypesCache;
import net.jpountz.lz4.LZ4BlockInputStream;
import net.jpountz.lz4.LZ4BlockOutputStream;
import org.enginehub.linbus.tree.LinCompoundTag;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataOutput;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Objects;
import java.util.function.Function;
/**
* Faster, stream-based implementation of {@link com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV3Writer} for
* writing schematics conforming the sponge schematic v3 format.
*
* @since TODO
*/
@SuppressWarnings("removal") // Yes, JNBT is deprecated - we know
public class FastSchematicWriterV3 implements ClipboardWriter {
public static final int CURRENT_VERSION = 3;
private static final int MAX_SIZE = Short.MAX_VALUE - Short.MIN_VALUE;
private final NBTOutputStream outputStream;
public FastSchematicWriterV3(final NBTOutputStream outputStream) {
this.outputStream = Objects.requireNonNull(outputStream, "outputStream");
}
@Override
public void write(final Clipboard clipboard) throws IOException {
clipboard.flush();
// Validate dimensions before starting to write into stream
final Region region = clipboard.getRegion();
if (region.getWidth() > MAX_SIZE) {
throw new IllegalArgumentException("Region width too large for schematic: " + region.getWidth());
}
if (region.getHeight() > MAX_SIZE) {
throw new IllegalArgumentException("Region height too large for schematic: " + region.getHeight());
}
if (region.getLength() > MAX_SIZE) {
throw new IllegalArgumentException("Region length too large for schematic: " + region.getLength());
}
this.outputStream.writeLazyCompoundTag(
"", root -> root.writeLazyCompoundTag("Schematic", out -> this.write2(out, clipboard))
);
}
private void write2(NBTOutputStream schematic, Clipboard clipboard) throws IOException {
final Region region = clipboard.getRegion();
final BlockVector3 origin = clipboard.getOrigin();
final BlockVector3 min = clipboard.getMinimumPoint();
final BlockVector3 offset = min.subtract(origin);
schematic.writeNamedTag("Version", CURRENT_VERSION);
schematic.writeNamedTag(
"DataVersion",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataVersion()
);
schematic.writeLazyCompoundTag("Metadata", out -> this.writeMetadata(out, clipboard));
schematic.writeNamedTag("Width", (short) region.getWidth());
schematic.writeNamedTag("Height", (short) region.getHeight());
schematic.writeNamedTag("Length", (short) region.getLength());
schematic.writeNamedTag("Offset", new int[]{
offset.x(), offset.y(), offset.z()
});
schematic.writeLazyCompoundTag("Blocks", out -> this.writeBlocks(out, clipboard));
if (clipboard.hasBiomes()) {
schematic.writeLazyCompoundTag("Biomes", out -> this.writeBiomes(out, clipboard));
}
// Some clipboards have quite heavy operations on the getEntities method - only call once
List<? extends Entity> entities;
if (!(entities = clipboard.getEntities()).isEmpty()) {
schematic.writeNamedTagName("Entities", NBTConstants.TYPE_LIST);
schematic.write(NBTConstants.TYPE_COMPOUND);
schematic.writeInt(entities.size());
for (final Entity entity : entities) {
this.writeEntity(schematic, clipboard, entity);
}
}
}
private void writeBlocks(NBTOutputStream blocks, Clipboard clipboard) throws IOException {
final int[] tiles = new int[]{0};
final ByteArrayOutputStream tileBytes = new ByteArrayOutputStream();
try (LZ4BlockOutputStream lz4Stream = new LZ4BlockOutputStream(tileBytes);
NBTOutputStream tileOut = new NBTOutputStream(lz4Stream)) {
this.writePalette(
blocks,
BlockTypesCache.states.length,
pos -> {
BaseBlock block = pos.getFullBlock(clipboard);
LinCompoundTag tag;
if ((tag = block.getNbt()) != null) {
tiles[0]++;
try {
tileOut.writeNamedTag("Id", block.getNbtId());
tileOut.writeNamedTag("Pos", new int[]{
pos.x() - clipboard.getMinimumPoint().x(),
pos.y() - clipboard.getMinimumPoint().y(),
pos.z() - clipboard.getMinimumPoint().z()
});
//noinspection deprecation
tileOut.writeNamedTag("Data", new CompoundTag(tag));
tileOut.write(NBTConstants.TYPE_END);
} catch (IOException e) {
throw new RuntimeException("Failed to write tile data", e);
}
}
return block;
},
block -> {
char ordinal = block.getOrdinalChar();
if (ordinal == BlockTypesCache.ReservedIDs.__RESERVED__) {
ordinal = BlockTypesCache.ReservedIDs.AIR;
}
return ordinal;
},
BlockStateHolder::getAsString,
clipboard
);
lz4Stream.finish();
} finally {
// Write Tiles
if (tiles[0] > 0) {
blocks.writeNamedTagName("BlockEntities", NBTConstants.TYPE_LIST);
blocks.write(NBTConstants.TYPE_COMPOUND);
blocks.writeInt(tiles[0]);
// Decompress cached data again
try (LZ4BlockInputStream reader = new LZ4BlockInputStream(new ByteArrayInputStream(tileBytes.toByteArray()))) {
IOUtil.copy(reader, blocks.getOutputStream());
}
}
}
}
private void writeBiomes(NBTOutputStream biomes, Clipboard clipboard) throws IOException {
this.writePalette(
biomes, BiomeType.REGISTRY.size(),
pos -> pos.getBiome(clipboard),
biome -> (char) biome.getInternalId(),
BiomeType::id,
clipboard
);
}
private void writeEntity(NBTOutputStream out, Clipboard clipboard, Entity entity) throws IOException {
final BaseEntity state = entity.getState();
if (state == null) {
throw new IOException("Entity has no state");
}
out.writeNamedTag("Id", state.getType().id());
out.writeNamedTagName("Pos", NBTConstants.TYPE_LIST);
out.write(NBTConstants.TYPE_DOUBLE);
out.writeInt(3);
out.writeDouble(entity.getLocation().x() - clipboard.getMinimumPoint().x());
out.writeDouble(entity.getLocation().y() - clipboard.getMinimumPoint().y());
out.writeDouble(entity.getLocation().z() - clipboard.getMinimumPoint().z());
out.writeLazyCompoundTag("Data", data -> {
//noinspection deprecation
CompoundTag nbt = state.getNbtData();
if (nbt != null) {
nbt.getValue().forEach((s, tag) -> {
if (s.equals("id") || s.equals("Rotation")) {
return;
}
try {
data.writeNamedTag(s, tag);
} catch (IOException e) {
throw new RuntimeException("failed to write entity data", e);
}
});
}
// Write rotation list
data.writeNamedTagName("Rotation", NBTConstants.TYPE_LIST);
data.write(NBTConstants.TYPE_FLOAT);
data.writeInt(2);
data.writeFloat(entity.getLocation().getYaw());
data.writeFloat(entity.getLocation().getPitch());
});
out.write(NBTConstants.TYPE_END); // End the compound
}
private <T> void writePalette(
NBTOutputStream out, int capacity,
Function<BlockVector3, T> objectResolver,
Function<T, Character> ordinalResolver,
Function<T, String> paletteEntryResolver,
Clipboard clipboard
) throws IOException {
int dataBytesUsed = 0;
ByteArrayOutputStream bytes = new ByteArrayOutputStream();
try (LZ4BlockOutputStream dataOut = new LZ4BlockOutputStream(bytes)) {
int index = 0;
char[] palette = new char[capacity];
Arrays.fill(palette, Character.MAX_VALUE);
final Iterator<BlockVector3> iterator = clipboard.iterator(Order.YZX);
// Start Palette tag
out.writeNamedTagName("Palette", NBTConstants.TYPE_COMPOUND);
while (iterator.hasNext()) {
BlockVector3 pos = iterator.next();
T obj = objectResolver.apply(pos);
char ordinal = ordinalResolver.apply(obj);
char value = palette[ordinal];
if (value == Character.MAX_VALUE) {
palette[ordinal] = value = (char) index++;
if (index >= palette.length) {
throw new IOException("insufficient palette capacity: " + palette.length + ", index: " + index);
}
out.writeNamedTag(paletteEntryResolver.apply(obj), value);
}
if ((value & -128) != 0) {
dataBytesUsed++;
dataOut.write(value & 127 | 128);
value >>>= 7;
}
dataOut.write(value);
dataBytesUsed++;
}
// End Palette tag
out.write(NBTConstants.TYPE_END);
dataOut.finish();
} finally {
// Write Data tag
if (dataBytesUsed > 0) {
try (LZ4BlockInputStream reader = new LZ4BlockInputStream(new ByteArrayInputStream(bytes.toByteArray()))) {
out.writeNamedTagName("Data", NBTConstants.TYPE_BYTE_ARRAY);
out.writeInt(dataBytesUsed);
IOUtil.copy(reader, (DataOutput) out);
}
}
}
}
private void writeMetadata(NBTOutputStream metadata, Clipboard clipboard) throws IOException {
metadata.writeNamedTag("Date", System.currentTimeMillis());
metadata.writeLazyCompoundTag("WorldEdit", out -> {
out.writeNamedTag("Version", WorldEdit.getVersion());
out.writeNamedTag(
"EditingPlatform",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getId()
);
out.writeNamedTag("Origin", new int[]{
clipboard.getOrigin().x(), clipboard.getOrigin().y(), clipboard.getOrigin().z()
});
out.writeLazyCompoundTag("Platforms", platforms -> {
for (final Platform platform : WorldEdit.getInstance().getPlatformManager().getPlatforms()) {
platforms.writeLazyCompoundTag(platform.getId(), p -> {
p.writeNamedTag("Name", platform.getPlatformName());
p.writeNamedTag("Version", platform.getPlatformVersion());
});
}
});
});
}
@Override
public void close() throws IOException {
this.outputStream.close();
}
}

70
worldedit-core/src/main/java/com/fastasyncworldedit/core/internal/io/VarIntStreamIterator.java Normal file
View File

@ -0,0 +1,70 @@
package com.fastasyncworldedit.core.internal.io;
import java.io.IOException;
import java.io.InputStream;
import java.util.NoSuchElementException;
import java.util.PrimitiveIterator;
/**
* Basically {@link com.sk89q.worldedit.internal.util.VarIntIterator} but backed by {@link java.io.InputStream}
*/
public class VarIntStreamIterator implements PrimitiveIterator.OfInt {
private final InputStream parent;
private final int limit;
private int index;
private boolean hasNextInt;
private int nextInt;
public VarIntStreamIterator(final InputStream parent, int limit) {
this.parent = parent;
this.limit = limit;
}
@Override
public boolean hasNext() {
if (hasNextInt) {
return true;
}
if (index >= limit) {
return false;
}
try {
nextInt = readNextInt();
} catch (IOException e) {
throw new RuntimeException(e);
}
return hasNextInt = true;
}
@Override
public int nextInt() {
if (!hasNext()) {
throw new NoSuchElementException();
}
hasNextInt = false;
return nextInt;
}
private int readNextInt() throws IOException {
int value = 0;
for (int bitsRead = 0; ; bitsRead += 7) {
if (index >= limit) {
throw new IllegalStateException("Ran out of bytes while reading VarInt (probably corrupted data)");
}
byte next = (byte) this.parent.read();
index++;
value |= (next & 0x7F) << bitsRead;
if (bitsRead > 7 * 5) {
throw new IllegalStateException("VarInt too big (probably corrupted data)");
}
if ((next & 0x80) == 0) {
break;
}
}
return value;
}
}

4
worldedit-core/src/main/java/com/fastasyncworldedit/core/jnbt/CompressedSchematicTag.java
View File

@ -1,6 +1,6 @@
package com.fastasyncworldedit.core.jnbt;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriter;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriterV2;
import com.fastasyncworldedit.core.internal.io.FastByteArrayOutputStream;
import com.fastasyncworldedit.core.internal.io.FastByteArraysInputStream;
import com.sk89q.jnbt.NBTOutputStream;
@ -21,7 +21,7 @@ public class CompressedSchematicTag extends CompressedCompoundTag<Clipboard> {
FastByteArrayOutputStream blocksOut = new FastByteArrayOutputStream();
try (LZ4BlockOutputStream lz4out = new LZ4BlockOutputStream(blocksOut)) {
NBTOutputStream nbtOut = new NBTOutputStream(lz4out);
new FastSchematicWriter(nbtOut).write(getSource());
new FastSchematicWriterV2(nbtOut).write(getSource());
} catch (IOException e) {
throw new RuntimeException(e);
}

2
worldedit-core/src/main/java/com/sk89q/jnbt/NBTInputStream.java
View File

@ -572,7 +572,7 @@ public final class NBTInputStream implements Closeable {
* @return the tag
* @throws IOException if an I/O error occurs.
*/
private Tag readTagPayload(int type, int depth) throws IOException {
public Tag readTagPayload(int type, int depth) throws IOException { //FAWE - public
switch (type) {
case NBTConstants.TYPE_END:
if (depth == 0) {

280
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/BuiltInClipboardFormat.java
View File

@ -19,28 +19,38 @@
package com.sk89q.worldedit.extent.clipboard.io;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicReader;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriter;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicReaderV2;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicReaderV3;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriterV2;
import com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriterV3;
import com.fastasyncworldedit.core.extent.clipboard.io.schematic.MinecraftStructure;
import com.fastasyncworldedit.core.extent.clipboard.io.schematic.PNGWriter;
import com.fastasyncworldedit.core.internal.io.ResettableFileInputStream;
import com.google.common.collect.ImmutableSet;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.NBTConstants;
import com.sk89q.jnbt.NBTInputStream;
import com.sk89q.jnbt.NBTOutputStream;
import com.sk89q.jnbt.NamedTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV1Reader;
import com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV2Reader;
import com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV2Writer;
import com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV3Reader;
import com.sk89q.worldedit.extent.clipboard.io.sponge.SpongeSchematicV3Writer;
import it.unimi.dsi.fastutil.io.FastBufferedInputStream;
import org.anarres.parallelgzip.ParallelGZIPOutputStream;
import org.enginehub.linbus.stream.LinBinaryIO;
import org.enginehub.linbus.tree.LinRootEntry;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Locale;
import java.util.Map;
import java.util.Set;
import java.util.zip.GZIPInputStream;
import java.util.zip.GZIPOutputStream;
@ -48,23 +58,14 @@ import java.util.zip.GZIPOutputStream;
/**
* A collection of supported clipboard formats.
*/
@SuppressWarnings("removal") //FAWE: suppress JNBT deprecations
public enum BuiltInClipboardFormat implements ClipboardFormat {
//FAWE start - register fast clipboard io
FAST("fast", "fawe", "sponge", "schem") {
@Override
public String getPrimaryFileExtension() {
return "schem";
}
FAST_V3("fast", "fawe", "schem") {
@Override
public ClipboardReader getReader(InputStream inputStream) throws IOException {
if (inputStream instanceof FileInputStream) {
inputStream = new ResettableFileInputStream((FileInputStream) inputStream);
}
BufferedInputStream buffered = new BufferedInputStream(inputStream);
NBTInputStream nbtStream = new NBTInputStream(new BufferedInputStream(new GZIPInputStream(buffered)));
return new FastSchematicReader(nbtStream);
return new FastSchematicReaderV3(inputStream);
}
@Override
@ -77,13 +78,77 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
gzip = new ParallelGZIPOutputStream(outputStream);
}
NBTOutputStream nbtStream = new NBTOutputStream(new BufferedOutputStream(gzip));
return new FastSchematicWriter(nbtStream);
return new FastSchematicWriterV3(nbtStream);
}
@Override
public boolean isFormat(File file) {
String name = file.getName().toLowerCase(Locale.ROOT);
return name.endsWith(".schem") || name.endsWith(".sponge");
public boolean isFormat(final InputStream inputStream) {
try (final DataInputStream stream = new DataInputStream(new FastBufferedInputStream(new GZIPInputStream(inputStream)));
final NBTInputStream nbt = new NBTInputStream(stream)) {
if (stream.readByte() != NBTConstants.TYPE_COMPOUND) {
return false;
}
stream.skipNBytes(2); // TAG name length ("" = 0), no need to read name as no bytes are written for root tag
if (stream.readByte() != NBTConstants.TYPE_COMPOUND) {
return false;
}
stream.skipNBytes(2); // TAG name length ("Schematic" = 9)
stream.skipNBytes(9); // "Schematic"
// We can't guarantee the specific order of nbt data, so scan and skip, if required
do {
byte type = stream.readByte();
String name = stream.readUTF();
if (type == NBTConstants.TYPE_END) {
return false;
}
if (type == NBTConstants.TYPE_INT && name.equals("Version")) {
return stream.readInt() == FastSchematicWriterV3.CURRENT_VERSION;
}
nbt.readTagPayloadLazy(type, 0);
} while (true);
} catch (IOException ignored) {
}
return false;
}
@Override
public String getPrimaryFileExtension() {
return "schem";
}
},
FAST_V2("fast.2", "fawe.2", "schem.2") {
@Override
public String getPrimaryFileExtension() {
return "schem";
}
@Override
public ClipboardReader getReader(InputStream inputStream) throws IOException {
if (inputStream instanceof FileInputStream) {
inputStream = new ResettableFileInputStream((FileInputStream) inputStream);
}
BufferedInputStream buffered = new BufferedInputStream(inputStream);
NBTInputStream nbtStream = new NBTInputStream(new BufferedInputStream(new GZIPInputStream(buffered)));
return new FastSchematicReaderV2(nbtStream);
}
@Override
public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
OutputStream gzip;
if (outputStream instanceof ParallelGZIPOutputStream || outputStream instanceof GZIPOutputStream) {
gzip = outputStream;
} else {
outputStream = new BufferedOutputStream(outputStream);
gzip = new ParallelGZIPOutputStream(outputStream);
}
NBTOutputStream nbtStream = new NBTOutputStream(new BufferedOutputStream(gzip));
return new FastSchematicWriterV2(nbtStream);
}
@Override
public boolean isFormat(InputStream inputStream) {
return detectOldSpongeSchematic(inputStream, FastSchematicWriterV2.CURRENT_VERSION);
}
},
@ -113,9 +178,39 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
}
@Override
public boolean isFormat(File file) {
String name = file.getName().toLowerCase(Locale.ROOT);
return name.endsWith(".schematic") || name.endsWith(".mcedit") || name.endsWith(".mce");
public boolean isFormat(InputStream inputStream) {
LinRootEntry rootEntry;
try {
DataInputStream stream = new DataInputStream(new GZIPInputStream(inputStream));
rootEntry = LinBinaryIO.readUsing(stream, LinRootEntry::readFrom);
} catch (Exception e) {
return false;
}
if (!rootEntry.name().equals("Schematic")) {
return false;
}
return rootEntry.value().value().containsKey("Materials");
}
},
SPONGE_V1_SCHEMATIC("sponge.1") {
@Override
public String getPrimaryFileExtension() {
return "schem";
}
@Override
public ClipboardReader getReader(InputStream inputStream) throws IOException {
return new SpongeSchematicV1Reader(LinBinaryIO.read(new DataInputStream(new GZIPInputStream(inputStream))));
}
@Override
public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
throw new IOException("This format does not support saving");
}
@Override
public boolean isFormat(InputStream inputStream) {
return detectOldSpongeSchematic(inputStream, 1);
}
},
@ -125,7 +220,8 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
* Avoid using with any large schematics/clipboards for reading/writing.
*/
@Deprecated
SPONGE_SCHEMATIC("slow", "safe") {
SPONGE_V2_SCHEMATIC("slow.2", "safe.2", "sponge.2") { // FAWE - edit aliases for fast
@Override
public String getPrimaryFileExtension() {
return "schem";
@ -133,38 +229,43 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
@Override
public ClipboardReader getReader(InputStream inputStream) throws IOException {
NBTInputStream nbtStream = new NBTInputStream(new GZIPInputStream(inputStream));
return new SpongeSchematicReader(nbtStream);
return new SpongeSchematicV2Reader(LinBinaryIO.read(new DataInputStream(new GZIPInputStream(inputStream))));
}
@Override
public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
NBTOutputStream nbtStream = new NBTOutputStream(new GZIPOutputStream(outputStream));
return new SpongeSchematicWriter(nbtStream);
return new SpongeSchematicV2Writer(new DataOutputStream(new GZIPOutputStream(outputStream)));
}
@Override
public boolean isFormat(InputStream inputStream) {
return detectOldSpongeSchematic(inputStream, 2);
}
},
SPONGE_V3_SCHEMATIC("sponge.3", "slow", "safe") { // FAWE - edit aliases for fast
@Override
public String getPrimaryFileExtension() {
return "schem";
}
@Override
public ClipboardReader getReader(InputStream inputStream) throws IOException {
return new SpongeSchematicV3Reader(LinBinaryIO.read(new DataInputStream(new GZIPInputStream(inputStream))));
}
@Override
public ClipboardWriter getWriter(OutputStream outputStream) throws IOException {
return new SpongeSchematicV3Writer(new DataOutputStream(new GZIPOutputStream(outputStream)));
}
@Override
public boolean isFormat(File file) {
try (NBTInputStream str = new NBTInputStream(new GZIPInputStream(new FileInputStream(file)))) {
NamedTag rootTag = str.readNamedTag();
if (!rootTag.getName().equals("Schematic")) {
return false;
}
CompoundTag schematicTag = (CompoundTag) rootTag.getTag();
// Check
Map<String, Tag<?, ?>> schematic = schematicTag.getValue();
if (!schematic.containsKey("Version")) {
return false;
}
} catch (Exception e) {
return false;
}
return true;
//FAWE start - delegate to stream-based isFormat approach of fast impl
return FAST_V3.isFormat(file);
//FAWE end
}
},
//FAWE start - recover schematics with bad entity data & register other clipboard formats
BROKENENTITY("brokenentity", "legacyentity", "le", "be", "brokenentities", "legacyentities") {
@Override
@ -179,7 +280,7 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
}
BufferedInputStream buffered = new BufferedInputStream(inputStream);
NBTInputStream nbtStream = new NBTInputStream(new BufferedInputStream(new GZIPInputStream(buffered)));
FastSchematicReader reader = new FastSchematicReader(nbtStream);
FastSchematicReaderV2 reader = new FastSchematicReaderV2(nbtStream);
reader.setBrokenEntities(true);
return reader;
}
@ -194,7 +295,7 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
gzip = new ParallelGZIPOutputStream(outputStream);
}
NBTOutputStream nbtStream = new NBTOutputStream(new BufferedOutputStream(gzip));
FastSchematicWriter writer = new FastSchematicWriter(nbtStream);
FastSchematicWriterV2 writer = new FastSchematicWriterV2(nbtStream);
writer.setBrokenEntities(true);
return writer;
}
@ -232,9 +333,37 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
}
@Override
public boolean isFormat(File file) {
String name = file.getName().toLowerCase(Locale.ROOT);
return name.endsWith(".nbt");
public boolean isFormat(InputStream inputStream) {
try (final DataInputStream stream = new DataInputStream(new FastBufferedInputStream(new GZIPInputStream(inputStream)));
final NBTInputStream nbt = new NBTInputStream(stream)) {
if (stream.readByte() != NBTConstants.TYPE_COMPOUND) {
return false;
}
NamedTag namedTag = nbt.readNamedTag();
if (!namedTag.getName().isEmpty()) {
return false;
}
// We can't guarantee the specific order of nbt data, so scan and skip, if required
do {
byte type = stream.readByte();
String name = stream.readUTF();
if (type == NBTConstants.TYPE_END) {
return false;
}
if (type == NBTConstants.TYPE_LIST && name.equals("size")) {
return true;
}
nbt.readTagPayloadLazy(type, 0);
} while (true);
} catch (IOException ignored) {
}
return false;
}
@Override
public boolean isFormat(final File file) {
return file.getName().toLowerCase(Locale.ROOT).endsWith(".nbt") && super.isFormat(file);
}
},
@ -265,6 +394,53 @@ public enum BuiltInClipboardFormat implements ClipboardFormat {
};
//FAWE end
private static boolean detectOldSpongeSchematic(InputStream inputStream, int version) {
//FAWE start - dont utilize linbus - WorldEdit approach is not really streamed
try (final DataInputStream stream = new DataInputStream(new FastBufferedInputStream(new GZIPInputStream(inputStream)));
final NBTInputStream nbt = new NBTInputStream(stream)) {
if (stream.readByte() != NBTConstants.TYPE_COMPOUND) {
return false;
}
stream.skipNBytes(2); // TAG name length ("Schematic" = 9)
stream.skipNBytes(9); // "Schematic"
// We can't guarantee the specific order of nbt data, so scan and skip, if required
do {
byte type = stream.readByte();
String name = stream.readUTF();
if (type == NBTConstants.TYPE_END) {
return false;
}
if (type == NBTConstants.TYPE_INT && name.equals("Version")) {
return stream.readInt() == version;
}
nbt.readTagPayloadLazy(type, 0);
} while (true);
} catch (IOException ignored) {
}
return false;
}
/**
* For backwards compatibility, this points to the Sponge Schematic Specification (Version 2)
* format. This should not be used going forwards.
*
* @deprecated Use {@link #SPONGE_V2_SCHEMATIC} or {@link #SPONGE_V3_SCHEMATIC}
*/
@Deprecated
public static final BuiltInClipboardFormat SPONGE_SCHEMATIC = SPONGE_V2_SCHEMATIC;
//FAWE start
/**
* For backwards compatibility, this points to the fast implementation of the Sponge Schematic Specification (Version 2)
* format. This should not be used going forwards.
*
* @deprecated Use {@link #FAST_V2} or {@link #FAST_V3}
*/
@Deprecated
public static final BuiltInClipboardFormat FAST = FAST_V2;
//FAWE end
private final ImmutableSet<String> aliases;
BuiltInClipboardFormat(String... aliases) {

25
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/ClipboardFormat.java
View File

@ -35,6 +35,7 @@ import java.io.InputStream;
import java.io.OutputStream;
import java.net.URI;
import java.net.URL;
import java.nio.file.Files;
import java.util.Set;
import static com.google.common.base.Preconditions.checkNotNull;
@ -82,7 +83,29 @@ public interface ClipboardFormat {
* @param file the file
* @return true if the given file is of this format
*/
boolean isFormat(File file);
default boolean isFormat(File file) {
try (InputStream stream = Files.newInputStream(file.toPath())) {
return isFormat(stream);
} catch (IOException e) {
return false;
}
}
/**
* Return whether the given stream is of this format.
*
* @apiNote The caller is responsible for the following:
* <ul>
* <li>Closing the input stream</li>
* </ul>
*
* @param inputStream The stream
* @return true if the given stream is of this format
* @since TODO
*/
default boolean isFormat(InputStream inputStream) {
return false;
}
/**
* Get the file extension this format primarily uses.

4
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/NBTSchematicReader.java
View File

@ -20,6 +20,7 @@
package com.sk89q.worldedit.extent.clipboard.io;
import com.sk89q.jnbt.Tag;
import org.enginehub.linbus.tree.LinCompoundTag;
import javax.annotation.Nullable;
import java.io.IOException;
@ -27,7 +28,10 @@ import java.util.Map;
/**
* Base class for NBT schematic readers.
*
* @deprecated These utility methods are provided by {@link LinCompoundTag} now.
*/
@Deprecated
public abstract class NBTSchematicReader implements ClipboardReader {
protected static <T extends Tag<?, ?>> T requireTag(Map<String, Tag<?, ?>> items, String key, Class<T> expected) throws IOException {

61
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/SchematicNbtUtil.java Normal file
View File

@ -0,0 +1,61 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io;
import com.sk89q.jnbt.Tag;
import java.io.IOException;
import java.util.Map;
import javax.annotation.Nullable;
// note, when clearing deprecations these methods don't need to remain -- they're introduced in 7.3.0
public class SchematicNbtUtil {
public static <T extends Tag> T requireTag(Map<String, Tag> items, String key, Class<T> expected) throws IOException {
if (!items.containsKey(key)) {
throw new IOException("Schematic file is missing a \"" + key + "\" tag of type "
+ expected.getName());
}
Tag tag = items.get(key);
if (!expected.isInstance(tag)) {
throw new IOException(key + " tag is not of tag type " + expected.getName() + ", got "
+ tag.getClass().getName() + " instead");
}
return expected.cast(tag);
}
@Nullable
public static <T extends Tag> T getTag(Map<String, Tag> items, String key, Class<T> expected) {
if (!items.containsKey(key)) {
return null;
}
Tag test = items.get(key);
if (!expected.isInstance(test)) {
return null;
}
return expected.cast(test);
}
private SchematicNbtUtil() {
}
}

453
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/SpongeSchematicReader.java
View File

@ -1,453 +0,0 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io;
import com.fastasyncworldedit.core.configuration.Caption;
import com.google.common.collect.Maps;
import com.sk89q.jnbt.LinBusConverter;
import com.sk89q.jnbt.ByteArrayTag;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.IntArrayTag;
import com.sk89q.jnbt.IntTag;
import com.sk89q.jnbt.ListTag;
import com.sk89q.jnbt.NBTInputStream;
import com.sk89q.jnbt.NamedTag;
import com.sk89q.jnbt.ShortTag;
import com.sk89q.jnbt.StringTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.extension.input.InputParseException;
import com.sk89q.worldedit.extension.input.ParserContext;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.internal.Constants;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.CuboidRegion;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.util.formatting.text.TextComponent;
import com.sk89q.worldedit.world.DataFixer;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.biome.BiomeTypes;
import com.sk89q.worldedit.world.block.BlockState;
import com.sk89q.worldedit.world.block.BlockTypes;
import com.sk89q.worldedit.world.entity.EntityType;
import com.sk89q.worldedit.world.entity.EntityTypes;
import com.sk89q.worldedit.world.storage.NBTConversions;
import org.apache.logging.log4j.Logger;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.OptionalInt;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Reads schematic files using the Sponge Schematic Specification.
*
* @deprecated Slow, resource intensive, but sometimes safer than using the recommended
* {@link com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicReader}.
* Avoid reading large schematics with this reader.
*/
@Deprecated
public class SpongeSchematicReader extends NBTSchematicReader {
private static final Logger LOGGER = LogManagerCompat.getLogger();
private final NBTInputStream inputStream;
private DataFixer fixer = null;
private int schematicVersion = -1;
private int dataVersion = -1;
/**
* Create a new instance.
*
* @param inputStream the input stream to read from
*/
public SpongeSchematicReader(NBTInputStream inputStream) {
checkNotNull(inputStream);
this.inputStream = inputStream;
}
@Override
public Clipboard read() throws IOException {
CompoundTag schematicTag = getBaseTag();
Map<String, Tag<?, ?>> schematic = schematicTag.getValue();
final Platform platform = WorldEdit.getInstance().getPlatformManager()
.queryCapability(Capability.WORLD_EDITING);
int liveDataVersion = platform.getDataVersion();
if (schematicVersion == 1) {
dataVersion = Constants.DATA_VERSION_MC_1_13_2; // this is a relatively safe assumption unless someone imports a schematic from 1.12, e.g. sponge 7.1-
fixer = platform.getDataFixer();
return readVersion1(schematicTag);
} else if (schematicVersion == 2) {
dataVersion = requireTag(schematic, "DataVersion", IntTag.class).getValue();
if (dataVersion < 0) {
LOGGER.warn(
"Schematic has an unknown data version ({}). Data may be incompatible.",
dataVersion
);
// Do not DFU unknown data
dataVersion = liveDataVersion;
}
if (dataVersion > liveDataVersion) {
LOGGER.warn("Schematic was made in a newer Minecraft version ({} > {}). Data may be incompatible.",
dataVersion, liveDataVersion
);
} else if (dataVersion < liveDataVersion) {
fixer = platform.getDataFixer();
if (fixer != null) {
LOGGER.info("Schematic was made in an older Minecraft version ({} < {}), will attempt DFU.",
dataVersion, liveDataVersion
);
} else {
LOGGER.info(
"Schematic was made in an older Minecraft version ({} < {}), but DFU is not available. Data may be incompatible.",
dataVersion,
liveDataVersion
);
}
}
BlockArrayClipboard clip = readVersion1(schematicTag);
return readVersion2(clip, schematicTag);
}
throw new SchematicLoadException(Caption.of("worldedit.schematic.load.unsupported-version",
TextComponent.of(schematicVersion)));
}
@Override
public OptionalInt getDataVersion() {
try {
CompoundTag schematicTag = getBaseTag();
Map<String, Tag<?, ?>> schematic = schematicTag.getValue();
if (schematicVersion == 1) {
return OptionalInt.of(Constants.DATA_VERSION_MC_1_13_2);
} else if (schematicVersion == 2) {
int dataVersion = requireTag(schematic, "DataVersion", IntTag.class).getValue();
if (dataVersion < 0) {
return OptionalInt.empty();
}
return OptionalInt.of(dataVersion);
}
return OptionalInt.empty();
} catch (IOException e) {
return OptionalInt.empty();
}
}
private CompoundTag getBaseTag() throws IOException {
NamedTag rootTag = inputStream.readNamedTag();
CompoundTag schematicTag = (CompoundTag) rootTag.getTag();
// Check
Map<String, Tag<?, ?>> schematic = schematicTag.getValue();
// Be lenient about the specific nesting level of the Schematic tag
// Also allows checking the version from newer versions of the specification
if (schematic.size() == 1 && schematic.containsKey("Schematic")) {
schematicTag = requireTag(schematic, "Schematic", CompoundTag.class);
schematic = schematicTag.getValue();
}
schematicVersion = requireTag(schematic, "Version", IntTag.class).getValue();
return schematicTag;
}
private BlockArrayClipboard readVersion1(CompoundTag schematicTag) throws IOException {
BlockVector3 origin;
Region region;
Map<String, Tag<?, ?>> schematic = schematicTag.getValue();
int width = requireTag(schematic, "Width", ShortTag.class).getValue();
int height = requireTag(schematic, "Height", ShortTag.class).getValue();
int length = requireTag(schematic, "Length", ShortTag.class).getValue();
IntArrayTag offsetTag = getTag(schematic, "Offset", IntArrayTag.class);
int[] offsetParts;
if (offsetTag != null) {
offsetParts = offsetTag.getValue();
if (offsetParts.length != 3) {
throw new IOException("Invalid offset specified in schematic.");
}
} else {
offsetParts = new int[]{0, 0, 0};
}
BlockVector3 min = BlockVector3.at(offsetParts[0], offsetParts[1], offsetParts[2]);
CompoundTag metadataTag = getTag(schematic, "Metadata", CompoundTag.class);
if (metadataTag != null && metadataTag.containsKey("WEOffsetX")) {
// We appear to have WorldEdit Metadata
Map<String, Tag<?, ?>> metadata = metadataTag.getValue();
int offsetX = requireTag(metadata, "WEOffsetX", IntTag.class).getValue();
int offsetY = requireTag(metadata, "WEOffsetY", IntTag.class).getValue();
int offsetZ = requireTag(metadata, "WEOffsetZ", IntTag.class).getValue();
BlockVector3 offset = BlockVector3.at(offsetX, offsetY, offsetZ);
origin = min.subtract(offset);
region = new CuboidRegion(min, min.add(width, height, length).subtract(BlockVector3.ONE));
} else {
origin = min;
region = new CuboidRegion(origin, origin.add(width, height, length).subtract(BlockVector3.ONE));
}
IntTag paletteMaxTag = getTag(schematic, "PaletteMax", IntTag.class);
Map<String, Tag<?, ?>> paletteObject = requireTag(schematic, "Palette", CompoundTag.class).getValue();
if (paletteMaxTag != null && paletteObject.size() != paletteMaxTag.getValue()) {
throw new IOException("Block palette size does not match expected size.");
}
Map<Integer, BlockState> palette = new HashMap<>();
ParserContext parserContext = new ParserContext();
parserContext.setRestricted(false);
parserContext.setTryLegacy(false);
parserContext.setPreferringWildcard(false);
for (String palettePart : paletteObject.keySet()) {
int id = requireTag(paletteObject, palettePart, IntTag.class).getValue();
if (fixer != null) {
palettePart = fixer.fixUp(DataFixer.FixTypes.BLOCK_STATE, palettePart, dataVersion);
}
BlockState state;
try {
state = WorldEdit.getInstance().getBlockFactory().parseFromInput(palettePart, parserContext).toImmutableState();
} catch (InputParseException e) {
LOGGER.warn("Invalid BlockState in palette: " + palettePart + ". Block will be replaced with air.");
state = BlockTypes.AIR.getDefaultState();
}
palette.put(id, state);
}
byte[] blocks = requireTag(schematic, "BlockData", ByteArrayTag.class).getValue();
Map<BlockVector3, Map<String, Tag<?, ?>>> tileEntitiesMap = new HashMap<>();
ListTag tileEntities = getTag(schematic, "BlockEntities", ListTag.class);
if (tileEntities == null) {
tileEntities = getTag(schematic, "TileEntities", ListTag.class);
}
if (tileEntities != null) {
for (Object tileTag : tileEntities.getValue()) {
Map<String, Tag<?, ?>> tileEntity = ((CompoundTag) tileTag).getValue();
int[] pos = requireTag(tileEntity, "Pos", IntArrayTag.class).getValue();
final BlockVector3 pt = BlockVector3.at(pos[0], pos[1], pos[2]);
Map<String, Tag<?, ?>> values = Maps.newHashMap(tileEntity);
values.put("x", new IntTag(pt.x()));
values.put("y", new IntTag(pt.y()));
values.put("z", new IntTag(pt.z()));
//FAWE start - support old, corrupt schematics
Tag id = values.get("Id");
if (id == null) {
id = values.get("id");
}
if (id == null) {
continue;
}
values.put("id", id);
//FAWE end
values.remove("Id");
values.remove("Pos");
if (fixer != null) {
//FAWE start - LinTag
tileEntity = ((CompoundTag) LinBusConverter.fromLinBus(fixer.fixUp(
DataFixer.FixTypes.BLOCK_ENTITY,
new CompoundTag(values).toLinTag(),
dataVersion
))).getValue();
//FAWE end
} else {
tileEntity = values;
}
tileEntitiesMap.put(pt, tileEntity);
}
}
BlockArrayClipboard clipboard = new BlockArrayClipboard(region);
clipboard.setOrigin(origin);
int index = 0;
int i = 0;
int value;
int varintLength;
while (i < blocks.length) {
value = 0;
varintLength = 0;
while (true) {
value |= (blocks[i] & 127) << (varintLength++ * 7);
if (varintLength > 5) {
throw new IOException("VarInt too big (probably corrupted data)");
}
if ((blocks[i] & 128) != 128) {
i++;
break;
}
i++;
}
// index = (y * length * width) + (z * width) + x
int y = index / (width * length);
int z = (index % (width * length)) / width;
int x = (index % (width * length)) % width;
BlockState state = palette.get(value);
BlockVector3 pt = BlockVector3.at(x, y, z);
try {
if (tileEntitiesMap.containsKey(pt)) {
clipboard.setBlock(
clipboard.getMinimumPoint().add(pt),
state.toBaseBlock(new CompoundTag(tileEntitiesMap.get(pt)))
);
} else {
clipboard.setBlock(clipboard.getMinimumPoint().add(pt), state);
}
} catch (WorldEditException e) {
throw new IOException("Failed to load a block in the schematic");
}
index++;
}
return clipboard;
}
private Clipboard readVersion2(BlockArrayClipboard version1, CompoundTag schematicTag) throws IOException {
Map<String, Tag<?, ?>> schematic = schematicTag.getValue();
if (schematic.containsKey("BiomeData")) {
readBiomes(version1, schematic);
}
if (schematic.containsKey("Entities")) {
readEntities(version1, schematic);
}
return version1;
}
private void readBiomes(BlockArrayClipboard clipboard, Map<String, Tag<?, ?>> schematic) throws IOException {
ByteArrayTag dataTag = requireTag(schematic, "BiomeData", ByteArrayTag.class);
IntTag maxTag = requireTag(schematic, "BiomePaletteMax", IntTag.class);
CompoundTag paletteTag = requireTag(schematic, "BiomePalette", CompoundTag.class);
Map<Integer, BiomeType> palette = new HashMap<>();
if (maxTag.getValue() != paletteTag.getValue().size()) {
throw new IOException("Biome palette size does not match expected size.");
}
for (Entry<String, Tag<?, ?>> palettePart : paletteTag.getValue().entrySet()) {
String key = palettePart.getKey();
if (fixer != null) {
key = fixer.fixUp(DataFixer.FixTypes.BIOME, key, dataVersion);
}
BiomeType biome = BiomeTypes.get(key);
if (biome == null) {
LOGGER.warn("Unknown biome type :" + key
+ " in palette. Are you missing a mod or using a schematic made in a newer version of Minecraft?");
}
Tag idTag = palettePart.getValue();
if (!(idTag instanceof IntTag)) {
throw new IOException("Biome mapped to non-Int tag.");
}
palette.put(((IntTag) idTag).getValue(), biome);
}
int width = clipboard.getDimensions().x();
byte[] biomes = dataTag.getValue();
int biomeIndex = 0;
int biomeJ = 0;
int bVal;
int varIntLength;
BlockVector3 min = clipboard.getMinimumPoint();
while (biomeJ < biomes.length) {
bVal = 0;
varIntLength = 0;
while (true) {
bVal |= (biomes[biomeJ] & 127) << (varIntLength++ * 7);
if (varIntLength > 5) {
throw new IOException("VarInt too big (probably corrupted data)");
}
if (((biomes[biomeJ] & 128) != 128)) {
biomeJ++;
break;
}
biomeJ++;
}
int z = biomeIndex / width;
int x = biomeIndex % width;
BiomeType type = palette.get(bVal);
for (int y = 0; y < clipboard.getRegion().getHeight(); y++) {
clipboard.setBiome(min.add(x, y, z), type);
}
biomeIndex++;
}
}
private void readEntities(BlockArrayClipboard clipboard, Map<String, Tag<?, ?>> schematic) throws IOException {
List<Tag> entList = requireTag(schematic, "Entities", ListTag.class).getValue();
if (entList.isEmpty()) {
return;
}
for (Tag et : entList) {
if (!(et instanceof CompoundTag)) {
continue;
}
CompoundTag entityTag = (CompoundTag) et;
Map<String, Tag<?, ?>> tags = entityTag.getValue();
String id = requireTag(tags, "Id", StringTag.class).getValue();
entityTag = entityTag.createBuilder().putString("id", id).remove("Id").build();
if (fixer != null) {
//FAWE start - LinTag
entityTag = (CompoundTag) LinBusConverter.fromLinBus(fixer.fixUp(
DataFixer.FixTypes.ENTITY,
entityTag.toLinTag(),
dataVersion
));
//FAWE end
}
EntityType entityType = EntityTypes.get(id);
if (entityType != null) {
Location location = NBTConversions.toLocation(
clipboard,
requireTag(tags, "Pos", ListTag.class),
requireTag(tags, "Rotation", ListTag.class)
);
BaseEntity state = new BaseEntity(entityType, entityTag);
clipboard.createEntity(location, state);
} else {
LOGGER.warn("Unknown entity when pasting schematic: " + id);
}
}
}
@Override
public void close() throws IOException {
inputStream.close();
}
}

11
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/share/BuiltInClipboardShareDestinations.java
View File

@ -61,7 +61,7 @@ public enum BuiltInClipboardShareDestinations implements ClipboardShareDestinati
PasteMetadata pasteMetadata = new PasteMetadata();
pasteMetadata.author = metadata.author();
pasteMetadata.extension = "schem";
pasteMetadata.extension = metadata.format().getPrimaryFileExtension();
pasteMetadata.name = metadata.name();
EngineHubPaste pasteService = new EngineHubPaste();
@ -75,7 +75,7 @@ public enum BuiltInClipboardShareDestinations implements ClipboardShareDestinati
@Override
public ClipboardFormat getDefaultFormat() {
return BuiltInClipboardFormat.SPONGE_SCHEMATIC;
return BuiltInClipboardFormat.SPONGE_V2_SCHEMATIC;
}
@Override
@ -119,13 +119,14 @@ public enum BuiltInClipboardShareDestinations implements ClipboardShareDestinati
@Override
public ClipboardFormat getDefaultFormat() {
return BuiltInClipboardFormat.FAST;
return BuiltInClipboardFormat.FAST_V3;
}
@Override
public boolean supportsFormat(final ClipboardFormat format) {
return format == BuiltInClipboardFormat.SPONGE_SCHEMATIC ||
format == BuiltInClipboardFormat.FAST ||
return format == BuiltInClipboardFormat.SPONGE_V2_SCHEMATIC ||
format == BuiltInClipboardFormat.FAST_V3 ||
format == BuiltInClipboardFormat.FAST_V2 ||
format == BuiltInClipboardFormat.MCEDIT_SCHEMATIC;
}
};

283
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/ReaderUtil.java Normal file
View File

@ -0,0 +1,283 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.extension.input.InputParseException;
import com.sk89q.worldedit.extension.input.ParserContext;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.internal.util.VarIntIterator;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.util.concurrency.LazyReference;
import com.sk89q.worldedit.world.DataFixer;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.biome.BiomeTypes;
import com.sk89q.worldedit.world.block.BlockState;
import com.sk89q.worldedit.world.block.BlockTypes;
import com.sk89q.worldedit.world.entity.EntityType;
import com.sk89q.worldedit.world.entity.EntityTypes;
import com.sk89q.worldedit.world.storage.NBTConversions;
import it.unimi.dsi.fastutil.ints.Int2ObjectLinkedOpenHashMap;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import org.apache.logging.log4j.Logger;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinIntArrayTag;
import org.enginehub.linbus.tree.LinIntTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinTagType;
import java.io.IOException;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.annotation.Nullable;
import static com.google.common.base.Preconditions.checkState;
/**
* Common code shared between schematic readers.
*/
public class ReaderUtil { //FAWE - make public
private static final Logger LOGGER = LogManagerCompat.getLogger();
static void checkSchematicVersion(int version, LinCompoundTag schematicTag) throws IOException {
int schematicVersion = getSchematicVersion(schematicTag);
checkState(
version == schematicVersion,
"Schematic is not version %s, but %s", version, schematicVersion
);
}
public static int getSchematicVersion(LinCompoundTag schematicTag) throws IOException {
return schematicTag.getTag("Version", LinTagType.intTag()).valueAsInt();
}
static VersionedDataFixer getVersionedDataFixer(
LinCompoundTag schematic, Platform platform,
int liveDataVersion
) {
//FAWE start - call fawe method without NBT component requirement
return getVersionedDataFixer(schematic.getTag("DataVersion", LinTagType.intTag()).valueAsInt(), platform,
liveDataVersion
);
//FAWE end
}
//FAWE start - make getVersionedDataFixer without schematic compound + public
public static VersionedDataFixer getVersionedDataFixer(int schematicDataVersion, Platform platform, int liveDataVersion) {
DataFixer fixer = null;
if (schematicDataVersion < 0) {
LOGGER.warn(
"Schematic has an unknown data version ({}). Data may be incompatible.",
schematicDataVersion
);
} else if (schematicDataVersion > liveDataVersion) {
LOGGER.warn(
"Schematic was made in a newer Minecraft version ({} > {})."
+ " Data may be incompatible.",
schematicDataVersion, liveDataVersion
);
} else if (schematicDataVersion < liveDataVersion) {
fixer = platform.getDataFixer();
if (fixer != null) {
LOGGER.debug(
"Schematic was made in an older Minecraft version ({} < {}),"
+ " will attempt DFU.",
schematicDataVersion, liveDataVersion
);
} else {
LOGGER.info(
"Schematic was made in an older Minecraft version ({} < {}),"
+ " but DFU is not available. Data may be incompatible.",
schematicDataVersion, liveDataVersion
);
}
}
return new VersionedDataFixer(schematicDataVersion, fixer);
}
//FAWE end
static Map<Integer, BlockState> decodePalette(
LinCompoundTag paletteObject, VersionedDataFixer fixer
) throws IOException {
Map<Integer, BlockState> palette = new HashMap<>();
ParserContext parserContext = new ParserContext();
parserContext.setRestricted(false);
parserContext.setTryLegacy(false);
parserContext.setPreferringWildcard(false);
for (var palettePart : paletteObject.value().entrySet()) {
if (!(palettePart.getValue() instanceof LinIntTag idTag)) {
throw new IOException("Invalid palette entry: " + palettePart);
}
int id = idTag.valueAsInt();
String paletteName = fixer.fixUp(DataFixer.FixTypes.BLOCK_STATE, palettePart.getKey());
BlockState state;
try {
state = WorldEdit.getInstance().getBlockFactory().parseFromInput(paletteName, parserContext).toImmutableState();
} catch (InputParseException e) {
LOGGER.warn("Invalid BlockState in palette: " + palettePart + ". Block will be replaced with air.");
state = BlockTypes.AIR.getDefaultState();
}
palette.put(id, state);
}
return palette;
}
static void initializeClipboardFromBlocks(
Clipboard clipboard, Map<Integer, BlockState> palette, byte[] blocks, LinListTag<LinCompoundTag> tileEntities,
VersionedDataFixer fixer, boolean dataIsNested
) throws IOException {
Map<BlockVector3, LinCompoundTag> tileEntitiesMap = new HashMap<>();
if (tileEntities != null) {
for (LinCompoundTag tileEntity : tileEntities.value()) {
final BlockVector3 pt = clipboard.getMinimumPoint().add(
decodeBlockVector3(tileEntity.getTag("Pos", LinTagType.intArrayTag()))
);
LinCompoundTag.Builder values = extractData(dataIsNested, tileEntity);
values.putInt("x", pt.x());
values.putInt("y", pt.y());
values.putInt("z", pt.z());
values.put("id", tileEntity.value().get("Id"));
if (fixer.isActive()) {
tileEntity = fixer.fixUp(DataFixer.FixTypes.BLOCK_ENTITY, values.build());
} else {
tileEntity = values.build();
}
tileEntitiesMap.put(pt, tileEntity);
}
}
int width = clipboard.getRegion().getWidth();
int length = clipboard.getRegion().getLength();
int index = 0;
for (VarIntIterator iter = new VarIntIterator(blocks); iter.hasNext(); index++) {
int nextBlockId = iter.nextInt();
BlockState state = palette.get(nextBlockId);
BlockVector3 rawPos = decodePositionFromDataIndex(width, length, index);
try {
BlockVector3 offsetPos = clipboard.getMinimumPoint().add(rawPos);
LinCompoundTag tileEntity = tileEntitiesMap.get(offsetPos);
clipboard.setBlock(offsetPos, state.toBaseBlock(tileEntity));
} catch (WorldEditException e) {
throw new IOException("Failed to load a block in the schematic", e);
}
}
}
private static LinCompoundTag.Builder extractData(boolean dataIsNested, LinCompoundTag tag) {
if (dataIsNested) {
LinCompoundTag dataTag = tag.findTag("Data", LinTagType.compoundTag());
return dataTag != null ? dataTag.toBuilder() : LinCompoundTag.builder();
} else {
LinCompoundTag.Builder values = tag.toBuilder();
values.remove("Id");
values.remove("Pos");
return values;
}
}
static BlockVector3 decodePositionFromDataIndex(int width, int length, int index) {
// index = (y * width * length) + (z * width) + x
int y = index / (width * length);
int remainder = index - (y * width * length);
int z = remainder / width;
int x = remainder - z * width;
return BlockVector3.at(x, y, z);
}
static BlockVector3 decodeBlockVector3(@Nullable LinIntArrayTag tag) throws IOException {
if (tag == null) {
return BlockVector3.ZERO;
}
int[] parts = tag.value();
if (parts.length != 3) {
throw new IOException("Invalid block vector specified in schematic.");
}
return BlockVector3.at(parts[0], parts[1], parts[2]);
}
static void readEntities(
BlockArrayClipboard clipboard, List<? extends LinCompoundTag> entList,
VersionedDataFixer fixer, boolean positionIsRelative
) {
if (entList.isEmpty()) {
return;
}
for (LinCompoundTag entityTag : entList) {
String id = entityTag.getTag("Id", LinTagType.stringTag()).value();
LinCompoundTag.Builder values = extractData(positionIsRelative, entityTag);
LinCompoundTag dataTag = values.putString("id", id).build();
dataTag = fixer.fixUp(DataFixer.FixTypes.ENTITY, dataTag);
EntityType entityType = EntityTypes.get(id);
if (entityType != null) {
Location location = NBTConversions.toLocation(
clipboard,
entityTag.getListTag("Pos", LinTagType.doubleTag()),
dataTag.getListTag("Rotation", LinTagType.floatTag())
);
BaseEntity state = new BaseEntity(entityType, LazyReference.computed(dataTag));
if (positionIsRelative) {
location = location.setPosition(
location.toVector().add(clipboard.getMinimumPoint().toVector3())
);
}
clipboard.createEntity(location, state);
} else {
LOGGER.warn("Unknown entity when pasting schematic: " + id);
}
}
}
static Int2ObjectMap<BiomeType> readBiomePalette(VersionedDataFixer fixer, LinCompoundTag paletteTag, Logger logger) throws
IOException {
Int2ObjectMap<BiomeType> palette = new Int2ObjectLinkedOpenHashMap<>(paletteTag.value().size());
for (var palettePart : paletteTag.value().entrySet()) {
String key = palettePart.getKey();
key = fixer.fixUp(DataFixer.FixTypes.BIOME, key);
BiomeType biome = BiomeTypes.get(key);
if (biome == null) {
logger.warn("Unknown biome type :" + key
+ " in palette. Are you missing a mod or using a schematic made in a newer version of Minecraft?");
}
if (!(palettePart.getValue() instanceof LinIntTag idTag)) {
throw new IOException("Biome mapped to non-Int tag.");
}
palette.put(idTag.valueAsInt(), biome);
}
return palette;
}
private ReaderUtil() {
}
}

134
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/SpongeSchematicV1Reader.java Normal file
View File

@ -0,0 +1,134 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
import com.sk89q.worldedit.internal.Constants;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.CuboidRegion;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.world.block.BlockState;
import org.enginehub.linbus.stream.LinStream;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinIntTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinRootEntry;
import org.enginehub.linbus.tree.LinTagType;
import java.io.IOException;
import java.util.Map;
import java.util.OptionalInt;
/**
* Reads schematic files using the Sponge Schematic Specification (Version 1).
*/
public class SpongeSchematicV1Reader implements ClipboardReader {
private final LinStream rootStream;
public SpongeSchematicV1Reader(LinStream rootStream) {
this.rootStream = rootStream;
}
@Override
public Clipboard read() throws IOException {
LinCompoundTag schematicTag = getBaseTag();
ReaderUtil.checkSchematicVersion(1, schematicTag);
return doRead(schematicTag);
}
// For legacy SpongeSchematicReader, can be inlined in WorldEdit 8
public static BlockArrayClipboard doRead(LinCompoundTag schematicTag) throws IOException {
final Platform platform = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING);
// this is a relatively safe assumption unless someone imports a schematic from 1.12
// e.g. sponge 7.1-
VersionedDataFixer fixer = new VersionedDataFixer(Constants.DATA_VERSION_MC_1_13_2, platform.getDataFixer());
return readVersion1(schematicTag, fixer);
}
@Override
public OptionalInt getDataVersion() {
try {
// Validate schematic version to be sure
ReaderUtil.checkSchematicVersion(1, getBaseTag());
return OptionalInt.of(Constants.DATA_VERSION_MC_1_13_2);
} catch (IOException e) {
return OptionalInt.empty();
}
}
private LinCompoundTag getBaseTag() throws IOException {
return LinRootEntry.readFrom(rootStream).value();
}
static BlockArrayClipboard readVersion1(LinCompoundTag schematicTag, VersionedDataFixer fixer) throws IOException {
int width = schematicTag.getTag("Width", LinTagType.shortTag()).valueAsShort() & 0xFFFF;
int height = schematicTag.getTag("Height", LinTagType.shortTag()).valueAsShort() & 0xFFFF;
int length = schematicTag.getTag("Length", LinTagType.shortTag()).valueAsShort() & 0xFFFF;
BlockVector3 min = ReaderUtil.decodeBlockVector3(schematicTag.findTag("Offset", LinTagType.intArrayTag()));
BlockVector3 offset = BlockVector3.ZERO;
LinCompoundTag metadataTag = schematicTag.findTag("Metadata", LinTagType.compoundTag());
if (metadataTag != null) {
LinIntTag offsetX = metadataTag.findTag("WEOffsetX", LinTagType.intTag());
if (offsetX != null) {
int offsetY = metadataTag.getTag("WEOffsetY", LinTagType.intTag()).valueAsInt();
int offsetZ = metadataTag.getTag("WEOffsetZ", LinTagType.intTag()).valueAsInt();
offset = BlockVector3.at(offsetX.valueAsInt(), offsetY, offsetZ);
}
}
BlockVector3 origin = min.subtract(offset);
Region region = new CuboidRegion(min, min.add(width, height, length).subtract(BlockVector3.ONE));
LinIntTag paletteMaxTag = schematicTag.findTag("PaletteMax", LinTagType.intTag());
LinCompoundTag paletteObject = schematicTag.getTag("Palette", LinTagType.compoundTag());
if (paletteMaxTag != null && paletteObject.value().size() != paletteMaxTag.valueAsInt()) {
throw new IOException("Block palette size does not match expected size.");
}
Map<Integer, BlockState> palette = ReaderUtil.decodePalette(paletteObject, fixer);
byte[] blocks = schematicTag.getTag("BlockData", LinTagType.byteArrayTag()).value();
LinListTag<LinCompoundTag> tileEntities = schematicTag.findListTag("BlockEntities", LinTagType.compoundTag());
if (tileEntities == null) {
tileEntities = schematicTag.findListTag("TileEntities", LinTagType.compoundTag());
}
BlockArrayClipboard clipboard = new BlockArrayClipboard(region);
clipboard.setOrigin(origin);
ReaderUtil.initializeClipboardFromBlocks(clipboard, palette, blocks, tileEntities, fixer, false);
return clipboard;
}
@Override
public void close() throws IOException {
}
}

144
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/SpongeSchematicV2Reader.java Normal file
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@ -0,0 +1,144 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.internal.util.VarIntIterator;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.world.biome.BiomeType;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import org.apache.logging.log4j.Logger;
import org.enginehub.linbus.stream.LinStream;
import org.enginehub.linbus.tree.LinByteArrayTag;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinIntTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinRootEntry;
import org.enginehub.linbus.tree.LinTagType;
import java.io.IOException;
import java.util.OptionalInt;
/**
* Reads schematic files using the Sponge Schematic Specification (Version 2).
*/
public class SpongeSchematicV2Reader implements ClipboardReader {
private static final Logger LOGGER = LogManagerCompat.getLogger();
private final LinStream rootStream;
public SpongeSchematicV2Reader(LinStream rootStream) {
this.rootStream = rootStream;
}
@Override
public Clipboard read() throws IOException {
LinCompoundTag schematicTag = getBaseTag();
ReaderUtil.checkSchematicVersion(2, schematicTag);
return doRead(schematicTag);
}
// For legacy SpongeSchematicReader, can be inlined in WorldEdit 8
public static Clipboard doRead(LinCompoundTag schematicTag) throws IOException {
final Platform platform = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING);
int liveDataVersion = platform.getDataVersion();
VersionedDataFixer fixer = ReaderUtil.getVersionedDataFixer(schematicTag, platform, liveDataVersion);
BlockArrayClipboard clip = SpongeSchematicV1Reader.readVersion1(schematicTag, fixer);
return readVersion2(clip, schematicTag, fixer);
}
@Override
public OptionalInt getDataVersion() {
try {
LinCompoundTag schematicTag = getBaseTag();
ReaderUtil.checkSchematicVersion(2, schematicTag);
int dataVersion = schematicTag.getTag("DataVersion", LinTagType.intTag()).valueAsInt();
if (dataVersion < 0) {
return OptionalInt.empty();
}
return OptionalInt.of(dataVersion);
} catch (IOException e) {
return OptionalInt.empty();
}
}
private LinCompoundTag getBaseTag() throws IOException {
return LinRootEntry.readFrom(rootStream).value();
}
private static Clipboard readVersion2(
BlockArrayClipboard version1, LinCompoundTag schematicTag, VersionedDataFixer fixer
) throws IOException {
if (schematicTag.value().containsKey("BiomeData")) {
readBiomes2(version1, schematicTag, fixer);
}
LinListTag<LinCompoundTag> entities = schematicTag.findListTag("Entities", LinTagType.compoundTag());
if (entities != null) {
ReaderUtil.readEntities(version1, entities.value(), fixer, false);
}
return version1;
}
private static void readBiomes2(
BlockArrayClipboard clipboard, LinCompoundTag schematic, VersionedDataFixer fixer
) throws IOException {
LinByteArrayTag dataTag = schematic.getTag("BiomeData", LinTagType.byteArrayTag());
LinIntTag maxTag = schematic.getTag("BiomePaletteMax", LinTagType.intTag());
LinCompoundTag paletteTag = schematic.getTag("BiomePalette", LinTagType.compoundTag());
if (maxTag.valueAsInt() != paletteTag.value().size()) {
throw new IOException("Biome palette size does not match expected size.");
}
Int2ObjectMap<BiomeType> palette = ReaderUtil.readBiomePalette(fixer, paletteTag, LOGGER);
int width = clipboard.getDimensions().x();
byte[] biomes = dataTag.value();
BlockVector3 min = clipboard.getMinimumPoint();
int index = 0;
for (VarIntIterator iter = new VarIntIterator(biomes); iter.hasNext(); index++) {
int nextBiomeId = iter.nextInt();
BiomeType type = palette.get(nextBiomeId);
// hack -- the x and y values from the 3d decode with length == 1 are equivalent
BlockVector3 hackDecode = ReaderUtil.decodePositionFromDataIndex(width, 1, index);
int x = hackDecode.x();
int z = hackDecode.y();
for (int y = 0; y < clipboard.getRegion().getHeight(); y++) {
clipboard.setBiome(min.add(x, y, z), type);
}
}
}
@Override
public void close() throws IOException {
}
}

188
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/SpongeSchematicWriter.java → worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/SpongeSchematicV2Writer.java
View File

@ -17,62 +17,41 @@
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io;
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.fastasyncworldedit.core.Fawe;
import com.google.common.collect.Maps;
import com.sk89q.jnbt.ByteArrayTag;
import com.sk89q.jnbt.CompoundTag;
import com.sk89q.jnbt.IntArrayTag;
import com.sk89q.jnbt.IntTag;
import com.sk89q.jnbt.ListTag;
import com.sk89q.jnbt.NBTOutputStream;
import com.sk89q.jnbt.ShortTag;
import com.sk89q.jnbt.StringTag;
import com.sk89q.jnbt.Tag;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardWriter;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.util.Location;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.block.BaseBlock;
import it.unimi.dsi.fastutil.objects.Object2IntLinkedOpenHashMap;
import it.unimi.dsi.fastutil.objects.Object2IntMap;
import it.unimi.dsi.fastutil.objects.Object2IntMaps;
import org.enginehub.linbus.stream.LinBinaryIO;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinRootEntry;
import org.enginehub.linbus.tree.LinTagType;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.stream.Collectors;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Writes schematic files using the Sponge schematic format.
*
* @deprecated Slow, resource intensive, but sometimes safer than using the recommended
* {@link com.fastasyncworldedit.core.extent.clipboard.io.FastSchematicWriter}.
* Avoid using large clipboards to create schematics with this writer.
* Writes schematic files using the Sponge Schematic Specification (Version 2).
*/
@Deprecated
public class SpongeSchematicWriter implements ClipboardWriter {
public class SpongeSchematicV2Writer implements ClipboardWriter {
private static final int CURRENT_VERSION = 2;
private static final int MAX_SIZE = Short.MAX_VALUE - Short.MIN_VALUE;
private final NBTOutputStream outputStream;
private final DataOutputStream outputStream;
/**
* Create a new schematic writer.
*
* @param outputStream the output stream to write to
*/
public SpongeSchematicWriter(NBTOutputStream outputStream) {
checkNotNull(outputStream);
public SpongeSchematicV2Writer(DataOutputStream outputStream) {
this.outputStream = outputStream;
}
@ -82,17 +61,16 @@ public class SpongeSchematicWriter implements ClipboardWriter {
// between upstream and FAWE
clipboard.flush();
//FAWE end
// For now always write the latest version. Maybe provide support for earlier if more appear.
outputStream.writeNamedTag("Schematic", new CompoundTag(write2(clipboard)));
LinBinaryIO.write(outputStream, new LinRootEntry("Schematic", write2(clipboard)));
}
/**
* Writes a version 2 schematic file.
*
* @param clipboard The clipboard
* @return The schematic map
* @return the schematic tag
*/
private Map<String, Tag<?, ?>> write2(Clipboard clipboard) {
private LinCompoundTag write2(Clipboard clipboard) {
Region region = clipboard.getRegion();
BlockVector3 origin = clipboard.getOrigin();
BlockVector3 min = region.getMinimumPoint();
@ -111,34 +89,49 @@ public class SpongeSchematicWriter implements ClipboardWriter {
throw new IllegalArgumentException("Length of region too large for a .schematic");
}
Map<String, Tag<?, ?>> schematic = new HashMap<>();
schematic.put("Version", new IntTag(CURRENT_VERSION));
schematic.put("DataVersion", new IntTag(
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataVersion()));
LinCompoundTag.Builder schematic = LinCompoundTag.builder();
schematic.putInt("Version", CURRENT_VERSION);
schematic.putInt("DataVersion",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataVersion()
);
Map<String, Tag<?, ?>> metadata = new HashMap<>();
metadata.put("WEOffsetX", new IntTag(offset.x()));
metadata.put("WEOffsetY", new IntTag(offset.y()));
metadata.put("WEOffsetZ", new IntTag(offset.z()));
metadata.put("FAWEVersion", new IntTag(Fawe.instance().getVersion().build));
LinCompoundTag.Builder metadata = LinCompoundTag.builder();
metadata.putInt("WEOffsetX", offset.x());
metadata.putInt("WEOffsetY", offset.y());
metadata.putInt("WEOffsetZ", offset.z());
schematic.put("Metadata", new CompoundTag(metadata));
LinCompoundTag.Builder worldEditSection = LinCompoundTag.builder();
worldEditSection.putString("Version", WorldEdit.getVersion());
worldEditSection.putString("EditingPlatform",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).id()
);
worldEditSection.putIntArray("Offset", new int[]{offset.x(), offset.y(), offset.z()});
schematic.put("Width", new ShortTag((short) width));
schematic.put("Height", new ShortTag((short) height));
schematic.put("Length", new ShortTag((short) length));
LinCompoundTag.Builder platformsSection = LinCompoundTag.builder();
for (Platform platform : WorldEdit.getInstance().getPlatformManager().getPlatforms()) {
platformsSection.put(platform.id(), LinCompoundTag
.builder()
.putString("Name", platform.getPlatformName())
.putString("Version", platform.getPlatformVersion())
.build());
}
worldEditSection.put("Platforms", platformsSection.build());
metadata.put("WorldEdit", worldEditSection.build());
schematic.put("Metadata", metadata.build());
schematic.putShort("Width", (short) width);
schematic.putShort("Height", (short) height);
schematic.putShort("Length", (short) length);
// The Sponge format Offset refers to the 'min' points location in the world. That's our 'Origin'
schematic.put("Offset", new IntArrayTag(new int[]{
min.x(),
min.y(),
min.z(),
}));
schematic.putIntArray("Offset", new int[]{min.x(), min.y(), min.z(),});
int paletteMax = 0;
Map<String, Integer> palette = new HashMap<>();
Object2IntMap<String> palette = new Object2IntLinkedOpenHashMap<>();
List<CompoundTag> tileEntities = new ArrayList<>();
LinListTag.Builder<LinCompoundTag> tileEntities = LinListTag.builder(LinTagType.compoundTag());
ByteArrayOutputStream buffer = new ByteArrayOutputStream(width * height * length);
@ -150,8 +143,9 @@ public class SpongeSchematicWriter implements ClipboardWriter {
int x0 = min.x() + x;
BlockVector3 point = BlockVector3.at(x0, y0, z0);
BaseBlock block = clipboard.getFullBlock(point);
if (block.getNbtData() != null) {
Map<String, Tag<?, ?>> values = new HashMap<>(block.getNbtData().getValue());
LinCompoundTag nbt = block.getNbt();
if (nbt != null) {
LinCompoundTag.Builder values = nbt.toBuilder();
values.remove("id"); // Remove 'id' if it exists. We want 'Id'
@ -160,16 +154,16 @@ public class SpongeSchematicWriter implements ClipboardWriter {
values.remove("y");
values.remove("z");
values.put("Id", new StringTag(block.getNbtId()));
values.put("Pos", new IntArrayTag(new int[]{x, y, z}));
values.putString("Id", block.getNbtId());
values.putIntArray("Pos", new int[]{x, y, z});
tileEntities.add(new CompoundTag(values));
tileEntities.add(values.build());
}
String blockKey = block.toImmutableState().getAsString();
int blockId;
if (palette.containsKey(blockKey)) {
blockId = palette.get(blockKey);
blockId = palette.getInt(blockKey);
} else {
blockId = paletteMax;
palette.put(blockKey, blockId);
@ -185,14 +179,14 @@ public class SpongeSchematicWriter implements ClipboardWriter {
}
}
schematic.put("PaletteMax", new IntTag(paletteMax));
schematic.putInt("PaletteMax", paletteMax);
Map<String, Tag<?, ?>> paletteTag = new HashMap<>();
palette.forEach((key, value) -> paletteTag.put(key, new IntTag(value)));
LinCompoundTag.Builder paletteTag = LinCompoundTag.builder();
Object2IntMaps.fastForEach(palette, e -> paletteTag.putInt(e.getKey(), e.getIntValue()));
schematic.put("Palette", new CompoundTag(paletteTag));
schematic.put("BlockData", new ByteArrayTag(buffer.toByteArray()));
schematic.put("BlockEntities", new ListTag(CompoundTag.class, tileEntities));
schematic.put("Palette", paletteTag.build());
schematic.putByteArray("BlockData", buffer.toByteArray());
schematic.put("BlockEntities", tileEntities.build());
// version 2 stuff
if (clipboard.hasBiomes()) {
@ -200,13 +194,16 @@ public class SpongeSchematicWriter implements ClipboardWriter {
}
if (!clipboard.getEntities().isEmpty()) {
writeEntities(clipboard, schematic);
LinListTag<LinCompoundTag> value = WriterUtil.encodeEntities(clipboard, false);
if (value != null) {
schematic.put("Entities", value);
}
}
return schematic;
return schematic.build();
}
private void writeBiomes(Clipboard clipboard, Map<String, Tag<?, ?>> schematic) {
private void writeBiomes(Clipboard clipboard, LinCompoundTag.Builder schematic) {
BlockVector3 min = clipboard.getMinimumPoint();
int width = clipboard.getRegion().getWidth();
int length = clipboard.getRegion().getLength();
@ -214,7 +211,7 @@ public class SpongeSchematicWriter implements ClipboardWriter {
ByteArrayOutputStream buffer = new ByteArrayOutputStream(width * length);
int paletteMax = 0;
Map<String, Integer> palette = new HashMap<>();
Object2IntMap<String> palette = new Object2IntLinkedOpenHashMap<>();
for (int z = 0; z < length; z++) {
int z0 = min.z() + z;
@ -226,7 +223,7 @@ public class SpongeSchematicWriter implements ClipboardWriter {
String biomeKey = biome.id();
int biomeId;
if (palette.containsKey(biomeKey)) {
biomeId = palette.get(biomeKey);
biomeId = palette.getInt(biomeKey);
} else {
biomeId = paletteMax;
palette.put(biomeKey, biomeId);
@ -241,38 +238,13 @@ public class SpongeSchematicWriter implements ClipboardWriter {
}
}
schematic.put("BiomePaletteMax", new IntTag(paletteMax));
schematic.putInt("BiomePaletteMax", paletteMax);
Map<String, Tag<?, ?>> paletteTag = new HashMap<>();
palette.forEach((key, value) -> paletteTag.put(key, new IntTag(value)));
LinCompoundTag.Builder paletteTag = LinCompoundTag.builder();
Object2IntMaps.fastForEach(palette, e -> paletteTag.putInt(e.getKey(), e.getIntValue()));
schematic.put("BiomePalette", new CompoundTag(paletteTag));
schematic.put("BiomeData", new ByteArrayTag(buffer.toByteArray()));
}
private void writeEntities(Clipboard clipboard, Map<String, Tag<?, ?>> schematic) {
List<CompoundTag> entities = clipboard.getEntities().stream().map(e -> {
BaseEntity state = e.getState();
if (state == null) {
return null;
}
Map<String, Tag<?, ?>> values = Maps.newHashMap();
CompoundTag rawData = state.getNbtData();
if (rawData != null) {
values.putAll(rawData.getValue());
}
values.remove("id");
values.put("Id", new StringTag(state.getType().id()));
final Location location = e.getLocation();
values.put("Pos", writeVector(location.toVector()));
values.put("Rotation", writeRotation(location));
return new CompoundTag(values);
}).filter(Objects::nonNull).collect(Collectors.toList());
if (entities.isEmpty()) {
return;
}
schematic.put("Entities", new ListTag(CompoundTag.class, entities));
schematic.put("BiomePalette", paletteTag.build());
schematic.putByteArray("BiomeData", buffer.toByteArray());
}
@Override

168
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/SpongeSchematicV3Reader.java Normal file
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@ -0,0 +1,168 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.BlockArrayClipboard;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardReader;
import com.sk89q.worldedit.internal.util.LogManagerCompat;
import com.sk89q.worldedit.internal.util.VarIntIterator;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.CuboidRegion;
import com.sk89q.worldedit.world.biome.BiomeType;
import com.sk89q.worldedit.world.block.BlockState;
import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
import org.apache.logging.log4j.Logger;
import org.enginehub.linbus.stream.LinStream;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinRootEntry;
import org.enginehub.linbus.tree.LinTagType;
import java.io.IOException;
import java.util.Map;
import java.util.OptionalInt;
/**
* Reads schematic files using the Sponge Schematic Specification.
*/
public class SpongeSchematicV3Reader implements ClipboardReader {
private static final Logger LOGGER = LogManagerCompat.getLogger();
private final LinStream rootStream;
public SpongeSchematicV3Reader(LinStream rootStream) {
this.rootStream = rootStream;
}
@Override
public Clipboard read() throws IOException {
LinCompoundTag schematicTag = getBaseTag();
ReaderUtil.checkSchematicVersion(3, schematicTag);
final Platform platform = WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING);
int liveDataVersion = platform.getDataVersion();
VersionedDataFixer fixer = ReaderUtil.getVersionedDataFixer(schematicTag, platform, liveDataVersion);
return readVersion3(schematicTag, fixer);
}
@Override
public OptionalInt getDataVersion() {
try {
LinCompoundTag schematicTag = getBaseTag();
ReaderUtil.checkSchematicVersion(3, schematicTag);
int dataVersion = schematicTag.getTag("DataVersion", LinTagType.intTag()).valueAsInt();
if (dataVersion < 0) {
return OptionalInt.empty();
}
return OptionalInt.of(dataVersion);
} catch (IOException e) {
return OptionalInt.empty();
}
}
private LinCompoundTag getBaseTag() throws IOException {
return LinRootEntry.readFrom(rootStream).value().getTag("Schematic", LinTagType.compoundTag());
}
private Clipboard readVersion3(LinCompoundTag schematicTag, VersionedDataFixer fixer) throws IOException {
int width = schematicTag.getTag("Width", LinTagType.shortTag()).valueAsShort() & 0xFFFF;
int height = schematicTag.getTag("Height", LinTagType.shortTag()).valueAsShort() & 0xFFFF;
int length = schematicTag.getTag("Length", LinTagType.shortTag()).valueAsShort() & 0xFFFF;
BlockVector3 offset = ReaderUtil.decodeBlockVector3(schematicTag.findTag("Offset", LinTagType.intArrayTag()));
BlockVector3 origin = BlockVector3.ZERO;
LinCompoundTag metadataTag = schematicTag.findTag("Metadata", LinTagType.compoundTag());
if (metadataTag != null) {
LinCompoundTag worldeditMeta = metadataTag.findTag("WorldEdit", LinTagType.compoundTag());
if (worldeditMeta != null) {
origin = ReaderUtil.decodeBlockVector3(worldeditMeta.findTag("Origin", LinTagType.intArrayTag()));
}
}
BlockVector3 min = offset.add(origin);
BlockArrayClipboard clipboard = new BlockArrayClipboard(new CuboidRegion(
min,
min.add(width, height, length).subtract(BlockVector3.ONE)
));
clipboard.setOrigin(origin);
decodeBlocksIntoClipboard(fixer, schematicTag, clipboard);
LinCompoundTag biomeContainer = schematicTag.findTag("Biomes", LinTagType.compoundTag());
if (biomeContainer != null) {
readBiomes3(clipboard, biomeContainer, fixer);
}
LinListTag<LinCompoundTag> entities = schematicTag.findListTag("Entities", LinTagType.compoundTag());
if (entities != null) {
ReaderUtil.readEntities(clipboard, entities.value(), fixer, true);
}
return clipboard;
}
private void decodeBlocksIntoClipboard(
VersionedDataFixer fixer, LinCompoundTag schematic, BlockArrayClipboard clipboard
) throws IOException {
LinCompoundTag blockContainer = schematic.getTag("Blocks", LinTagType.compoundTag());
LinCompoundTag paletteObject = blockContainer.getTag("Palette", LinTagType.compoundTag());
Map<Integer, BlockState> palette = ReaderUtil.decodePalette(paletteObject, fixer);
byte[] blocks = blockContainer.getTag("Data", LinTagType.byteArrayTag()).value();
LinListTag<LinCompoundTag> blockEntities = blockContainer.getListTag("BlockEntities", LinTagType.compoundTag());
ReaderUtil.initializeClipboardFromBlocks(clipboard, palette, blocks, blockEntities, fixer, true);
}
private void readBiomes3(
BlockArrayClipboard clipboard, LinCompoundTag biomeContainer, VersionedDataFixer fixer
) throws IOException {
LinCompoundTag paletteTag = biomeContainer.getTag("Palette", LinTagType.compoundTag());
Int2ObjectMap<BiomeType> palette = ReaderUtil.readBiomePalette(fixer, paletteTag, LOGGER);
int width = clipboard.getRegion().getWidth();
int length = clipboard.getRegion().getLength();
byte[] biomes = biomeContainer.getTag("Data", LinTagType.byteArrayTag()).value();
BlockVector3 min = clipboard.getMinimumPoint();
int index = 0;
for (VarIntIterator iter = new VarIntIterator(biomes); iter.hasNext(); index++) {
int nextBiomeId = iter.nextInt();
BiomeType type = palette.get(nextBiomeId);
BlockVector3 pos = ReaderUtil.decodePositionFromDataIndex(width, length, index);
clipboard.setBiome(min.add(pos), type);
}
}
@Override
public void close() throws IOException {
}
}

233
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/SpongeSchematicV3Writer.java Normal file
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@ -0,0 +1,233 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.extension.platform.Capability;
import com.sk89q.worldedit.extension.platform.Platform;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.extent.clipboard.io.ClipboardWriter;
import com.sk89q.worldedit.math.BlockVector3;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.world.block.BaseBlock;
import it.unimi.dsi.fastutil.objects.Object2IntLinkedOpenHashMap;
import it.unimi.dsi.fastutil.objects.Object2IntMap;
import it.unimi.dsi.fastutil.objects.Object2IntMaps;
import org.enginehub.linbus.stream.LinBinaryIO;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinRootEntry;
import org.enginehub.linbus.tree.LinTagType;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.util.function.Function;
/**
* Writes schematic files using the Sponge Schematic Specification (Version 3).
*/
public class SpongeSchematicV3Writer implements ClipboardWriter {
private static final int CURRENT_VERSION = 3;
private static final int MAX_SIZE = Short.MAX_VALUE - Short.MIN_VALUE;
private final DataOutputStream outputStream;
public SpongeSchematicV3Writer(DataOutputStream outputStream) {
this.outputStream = outputStream;
}
@Override
public void write(Clipboard clipboard) throws IOException {
//FAWE start - ensure clipboard is flushed in case of using clipboard-on-disk. Maintains allowing of the same code
// between upstream and FAWE
clipboard.flush();
//FAWE end
LinBinaryIO.write(outputStream,
new LinRootEntry("", LinCompoundTag.builder().put("Schematic", write3(clipboard)).build())
);
}
/**
* Writes a version 3 schematic file.
*
* @param clipboard The clipboard
* @return The schematic map
*/
private LinCompoundTag write3(Clipboard clipboard) {
Region region = clipboard.getRegion();
BlockVector3 origin = clipboard.getOrigin();
BlockVector3 min = region.getMinimumPoint();
BlockVector3 offset = min.subtract(origin);
int width = region.getWidth();
int height = region.getHeight();
int length = region.getLength();
if (width > MAX_SIZE) {
throw new IllegalArgumentException("Width of region too large for a .schematic");
}
if (height > MAX_SIZE) {
throw new IllegalArgumentException("Height of region too large for a .schematic");
}
if (length > MAX_SIZE) {
throw new IllegalArgumentException("Length of region too large for a .schematic");
}
LinCompoundTag.Builder schematic = LinCompoundTag.builder();
schematic.putInt("Version", CURRENT_VERSION);
schematic.putInt("DataVersion",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).getDataVersion()
);
LinCompoundTag.Builder metadata = LinCompoundTag.builder();
metadata.putLong("Date", System.currentTimeMillis());
LinCompoundTag.Builder worldEditSection = LinCompoundTag.builder();
worldEditSection.putString("Version", WorldEdit.getVersion());
worldEditSection.putString("EditingPlatform",
WorldEdit.getInstance().getPlatformManager().queryCapability(Capability.WORLD_EDITING).id()
);
worldEditSection.putIntArray("Origin", new int[]{origin.x(), origin.y(), origin.z()});
LinCompoundTag.Builder platformsSection = LinCompoundTag.builder();
for (Platform platform : WorldEdit.getInstance().getPlatformManager().getPlatforms()) {
platformsSection.put(platform.id(), LinCompoundTag
.builder()
.putString("Name", platform.getPlatformName())
.putString("Version", platform.getPlatformVersion())
.build());
}
worldEditSection.put("Platforms", platformsSection.build());
metadata.put("WorldEdit", worldEditSection.build());
schematic.put("Metadata", metadata.build());
schematic.putShort("Width", (short) width);
schematic.putShort("Height", (short) height);
schematic.putShort("Length", (short) length);
schematic.putIntArray("Offset", new int[]{offset.x(), offset.y(), offset.z(),});
schematic.put("Blocks", encodeBlocks(clipboard));
if (clipboard.hasBiomes()) {
schematic.put("Biomes", encodeBiomes(clipboard));
}
if (!clipboard.getEntities().isEmpty()) {
LinListTag<LinCompoundTag> value = WriterUtil.encodeEntities(clipboard, true);
if (value != null) {
schematic.put("Entities", value);
}
}
return schematic.build();
}
private static final class PaletteMap {
private final Object2IntMap<String> contents = new Object2IntLinkedOpenHashMap<>();
private int nextId = 0;
public int getId(String key) {
int result = contents.getOrDefault(key, -1);
if (result != -1) {
return result;
}
int newValue = nextId;
nextId++;
contents.put(key, newValue);
return newValue;
}
public LinCompoundTag toNbt() {
LinCompoundTag.Builder result = LinCompoundTag.builder();
Object2IntMaps.fastForEach(contents, e -> result.putInt(e.getKey(), e.getIntValue()));
return result.build();
}
}
private LinCompoundTag encodeBlocks(Clipboard clipboard) {
LinListTag.Builder<LinCompoundTag> blockEntities = LinListTag.builder(LinTagType.compoundTag());
LinCompoundTag.Builder result = encodePalettedData(clipboard, point -> {
BaseBlock block = clipboard.getFullBlock(point);
// Also compute block entity side-effect here
LinCompoundTag nbt = block.getNbt();
if (nbt != null) {
LinCompoundTag.Builder builder = LinCompoundTag.builder();
builder.putString("Id", block.getNbtId());
BlockVector3 adjustedPos = point.subtract(clipboard.getMinimumPoint());
builder.putIntArray("Pos", new int[]{adjustedPos.x(), adjustedPos.y(), adjustedPos.z()});
builder.put("Data", nbt);
blockEntities.add(builder.build());
}
return block.toImmutableState().getAsString();
});
return result.put("BlockEntities", blockEntities.build()).build();
}
private LinCompoundTag encodeBiomes(Clipboard clipboard) {
return encodePalettedData(clipboard, point -> clipboard.getBiome(point).id()).build();
}
private LinCompoundTag.Builder encodePalettedData(
Clipboard clipboard, Function<BlockVector3, String> keyFunction
) {
BlockVector3 min = clipboard.getMinimumPoint();
int width = clipboard.getRegion().getWidth();
int height = clipboard.getRegion().getHeight();
int length = clipboard.getRegion().getLength();
PaletteMap paletteMap = new PaletteMap();
ByteArrayOutputStream buffer = new ByteArrayOutputStream(width * height * length);
for (int y = 0; y < height; y++) {
for (int z = 0; z < length; z++) {
for (int x = 0; x < width; x++) {
BlockVector3 point = min.add(x, y, z);
String key = keyFunction.apply(point);
int id = paletteMap.getId(key);
while ((id & -128) != 0) {
buffer.write(id & 127 | 128);
id >>>= 7;
}
buffer.write(id);
}
}
}
return LinCompoundTag.builder().put("Palette", paletteMap.toNbt()).putByteArray("Data", buffer.toByteArray());
}
@Override
public void close() throws IOException {
outputStream.close();
}
}

47
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/VersionedDataFixer.java Normal file
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/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.world.DataFixer;
import javax.annotation.Nullable;
public final class VersionedDataFixer { //FAWE - public
private final int dataVersion;
@Nullable
private final DataFixer fixer;
public VersionedDataFixer(int dataVersion, @Nullable DataFixer fixer) { //FAWE - public
this.dataVersion = dataVersion;
this.fixer = fixer;
}
public boolean isActive() {
return fixer != null;
}
public <T> T fixUp(DataFixer.FixType<T> type, T original) {
if (!isActive()) {
return original;
}
return fixer.fixUp(type, original, dataVersion);
}
}

91
worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/WriterUtil.java Normal file
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/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;
import com.sk89q.worldedit.entity.BaseEntity;
import com.sk89q.worldedit.entity.Entity;
import com.sk89q.worldedit.extent.clipboard.Clipboard;
import com.sk89q.worldedit.math.Vector3;
import com.sk89q.worldedit.util.Location;
import org.enginehub.linbus.tree.LinCompoundTag;
import org.enginehub.linbus.tree.LinDoubleTag;
import org.enginehub.linbus.tree.LinFloatTag;
import org.enginehub.linbus.tree.LinListTag;
import org.enginehub.linbus.tree.LinTagType;
class WriterUtil {
static LinListTag<LinCompoundTag> encodeEntities(Clipboard clipboard, boolean positionIsRelative) {
LinListTag.Builder<LinCompoundTag> entities = LinListTag.builder(LinTagType.compoundTag());
for (Entity entity : clipboard.getEntities()) {
LinCompoundTag encoded = encodeEntity(clipboard, positionIsRelative, entity);
if (encoded != null) {
entities.add(encoded);
}
}
var result = entities.build();
if (result.value().isEmpty()) {
return null;
}
return result;
}
private static LinCompoundTag encodeEntity(Clipboard clipboard, boolean positionIsRelative, Entity e) {
BaseEntity state = e.getState();
if (state == null) {
return null;
}
LinCompoundTag.Builder fullTagBuilder = LinCompoundTag.builder();
LinCompoundTag.Builder dataTagBuilder = LinCompoundTag.builder();
LinCompoundTag rawData = state.getNbt();
if (rawData != null) {
dataTagBuilder.putAll(rawData.value());
dataTagBuilder.remove("id");
}
final Location location = e.getLocation();
Vector3 pos = location.toVector();
dataTagBuilder.put("Rotation", encodeRotation(location));
if (positionIsRelative) {
pos = pos.subtract(clipboard.getMinimumPoint().toVector3());
fullTagBuilder.put("Data", dataTagBuilder.build());
} else {
fullTagBuilder.putAll(dataTagBuilder.build().value());
}
fullTagBuilder.putString("Id", state.getType().id());
fullTagBuilder.put("Pos", encodeVector(pos));
return fullTagBuilder.build();
}
static LinListTag<LinDoubleTag> encodeVector(Vector3 vector) {
return LinListTag.builder(LinTagType.doubleTag()).add(LinDoubleTag.of(vector.x())).add(LinDoubleTag.of(vector.y())).add(
LinDoubleTag.of(vector.z())).build();
}
static LinListTag<LinFloatTag> encodeRotation(Location location) {
return LinListTag
.builder(LinTagType.floatTag())
.add(LinFloatTag.of(location.getYaw()))
.add(LinFloatTag.of(location.getPitch()))
.build();
}
}

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worldedit-core/src/main/java/com/sk89q/worldedit/extent/clipboard/io/sponge/package-info.java Normal file
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/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
/**
* This package is <em>internal</em>, containing implementation details of the Sponge Schematic
* Specification. Use the {@link com.sk89q.worldedit.extent.clipboard.io.ClipboardFormats} or
* {@link com.sk89q.worldedit.extent.clipboard.io.BuiltInClipboardFormat} classes to
* acquire readers and writers instead.
*/
package com.sk89q.worldedit.extent.clipboard.io.sponge;

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worldedit-core/src/main/java/com/sk89q/worldedit/internal/util/VarIntIterator.java Normal file
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/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team 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 <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.internal.util;
import it.unimi.dsi.fastutil.ints.IntIterator;
import java.util.NoSuchElementException;
import java.util.PrimitiveIterator;
/**
* Simple class to transform a {@code byte[]} into an iterator of the VarInts encoded in it.
*/
public class VarIntIterator implements PrimitiveIterator.OfInt {
private final byte[] source;
private int index;
private boolean hasNextInt;
private int nextInt;
public VarIntIterator(byte[] source) {
this.source = source;
}
@Override
public boolean hasNext() {
if (hasNextInt) {
return true;
}
if (index >= source.length) {
return false;
}
nextInt = readNextInt();
return hasNextInt = true;
}
private int readNextInt() {
int value = 0;
for (int bitsRead = 0; ; bitsRead += 7) {
if (index >= source.length) {
throw new IllegalStateException("Ran out of bytes while reading VarInt (probably corrupted data)");
}
byte next = source[index];
index++;
value |= (next & 0x7F) << bitsRead;
if (bitsRead > 7 * 5) {
throw new IllegalStateException("VarInt too big (probably corrupted data)");
}
if ((next & 0x80) == 0) {
break;
}
}
return value;
}
@Override
public int nextInt() {
if (!hasNext()) {
throw new NoSuchElementException();
}
hasNextInt = false;
return nextInt;
}
}