Plex-FAWE/worldedit-bukkit/adapters/adapter-1_19_4/src/main/java/com/sk89q/worldedit/bukkit/adapter/impl/fawe/v1_19_R3/PaperweightPlatformAdapter....

690 lines
29 KiB
Java

package com.sk89q.worldedit.bukkit.adapter.impl.fawe.v1_19_R3;
import com.destroystokyo.paper.util.maplist.EntityList;
import com.fastasyncworldedit.bukkit.adapter.CachedBukkitAdapter;
import com.fastasyncworldedit.bukkit.adapter.DelegateSemaphore;
import com.fastasyncworldedit.bukkit.adapter.NMSAdapter;
import com.fastasyncworldedit.core.Fawe;
import com.fastasyncworldedit.core.FaweCache;
import com.fastasyncworldedit.core.math.BitArrayUnstretched;
import com.fastasyncworldedit.core.util.MathMan;
import com.fastasyncworldedit.core.util.ReflectionUtils;
import com.fastasyncworldedit.core.util.TaskManager;
import com.mojang.datafixers.util.Either;
import com.sk89q.worldedit.bukkit.WorldEditPlugin;
import com.sk89q.worldedit.bukkit.adapter.BukkitImplAdapter;
import com.sk89q.worldedit.bukkit.adapter.Refraction;
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.BlockTypesCache;
import io.papermc.lib.PaperLib;
import io.papermc.paper.world.ChunkEntitySlices;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Holder;
import net.minecraft.core.IdMap;
import net.minecraft.core.Registry;
import net.minecraft.network.protocol.game.ClientboundLevelChunkWithLightPacket;
import net.minecraft.server.level.ChunkHolder;
import net.minecraft.server.level.ChunkMap;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.util.BitStorage;
import net.minecraft.util.ExceptionCollector;
import net.minecraft.util.SimpleBitStorage;
import net.minecraft.util.ThreadingDetector;
import net.minecraft.util.ZeroBitStorage;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.level.ChunkPos;
import net.minecraft.world.level.LevelAccessor;
import net.minecraft.world.level.biome.Biome;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.Blocks;
import net.minecraft.world.level.block.entity.BlockEntity;
import net.minecraft.world.level.chunk.GlobalPalette;
import net.minecraft.world.level.chunk.HashMapPalette;
import net.minecraft.world.level.chunk.LevelChunk;
import net.minecraft.world.level.chunk.LevelChunkSection;
import net.minecraft.world.level.chunk.LinearPalette;
import net.minecraft.world.level.chunk.Palette;
import net.minecraft.world.level.chunk.PalettedContainer;
import net.minecraft.world.level.chunk.SingleValuePalette;
import net.minecraft.world.level.entity.PersistentEntitySectionManager;
import org.bukkit.craftbukkit.v1_19_R3.CraftChunk;
import sun.misc.Unsafe;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Semaphore;
import java.util.function.Function;
import static net.minecraft.core.registries.Registries.BIOME;
public final class PaperweightPlatformAdapter extends NMSAdapter {
public static final Field fieldData;
public static final Constructor<?> dataConstructor;
public static final Field fieldStorage;
public static final Field fieldPalette;
private static final Field fieldTickingFluidCount;
private static final Field fieldTickingBlockCount;
private static final Field fieldNonEmptyBlockCount;
private static final MethodHandle methodGetVisibleChunk;
private static final int CHUNKSECTION_BASE;
private static final int CHUNKSECTION_SHIFT;
private static final Field fieldThreadingDetector;
private static final long fieldThreadingDetectorOffset;
private static final Field fieldLock;
private static final long fieldLockOffset;
private static final MethodHandle methodRemoveGameEventListener;
private static final MethodHandle methodremoveTickingBlockEntity;
private static final Field fieldRemove;
static final boolean POST_CHUNK_REWRITE;
private static Method PAPER_CHUNK_GEN_ALL_ENTITIES;
private static Field LEVEL_CHUNK_ENTITIES;
private static Field SERVER_LEVEL_ENTITY_MANAGER;
static {
try {
fieldData = PalettedContainer.class.getDeclaredField(Refraction.pickName("data", "d"));
fieldData.setAccessible(true);
Class<?> dataClazz = fieldData.getType();
dataConstructor = dataClazz.getDeclaredConstructors()[0];
dataConstructor.setAccessible(true);
fieldStorage = dataClazz.getDeclaredField(Refraction.pickName("storage", "b"));
fieldStorage.setAccessible(true);
fieldPalette = dataClazz.getDeclaredField(Refraction.pickName("palette", "c"));
fieldPalette.setAccessible(true);
fieldTickingFluidCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("tickingFluidCount", "h"));
fieldTickingFluidCount.setAccessible(true);
fieldTickingBlockCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("tickingBlockCount", "g"));
fieldTickingBlockCount.setAccessible(true);
fieldNonEmptyBlockCount = LevelChunkSection.class.getDeclaredField(Refraction.pickName("nonEmptyBlockCount", "f"));
fieldNonEmptyBlockCount.setAccessible(true);
Method getVisibleChunkIfPresent = ChunkMap.class.getDeclaredMethod(Refraction.pickName(
"getVisibleChunkIfPresent",
"b"
), long.class);
getVisibleChunkIfPresent.setAccessible(true);
methodGetVisibleChunk = MethodHandles.lookup().unreflect(getVisibleChunkIfPresent);
Unsafe unsafe = ReflectionUtils.getUnsafe();
if (!PaperLib.isPaper()) {
fieldThreadingDetector = PalettedContainer.class.getDeclaredField(Refraction.pickName("threadingDetector", "f"));
fieldThreadingDetectorOffset = unsafe.objectFieldOffset(fieldThreadingDetector);
fieldLock = ThreadingDetector.class.getDeclaredField(Refraction.pickName("lock", "c"));
fieldLockOffset = unsafe.objectFieldOffset(fieldLock);
} else {
// in paper, the used methods are synchronized properly
fieldThreadingDetector = null;
fieldThreadingDetectorOffset = -1;
fieldLock = null;
fieldLockOffset = -1;
}
Method removeGameEventListener = LevelChunk.class.getDeclaredMethod(
Refraction.pickName("removeGameEventListener", "a"),
BlockEntity.class,
ServerLevel.class
);
removeGameEventListener.setAccessible(true);
methodRemoveGameEventListener = MethodHandles.lookup().unreflect(removeGameEventListener);
Method removeBlockEntityTicker = LevelChunk.class.getDeclaredMethod(
Refraction.pickName(
"removeBlockEntityTicker",
"l"
), BlockPos.class
);
removeBlockEntityTicker.setAccessible(true);
methodremoveTickingBlockEntity = MethodHandles.lookup().unreflect(removeBlockEntityTicker);
fieldRemove = BlockEntity.class.getDeclaredField(Refraction.pickName("remove", "p"));
fieldRemove.setAccessible(true);
CHUNKSECTION_BASE = unsafe.arrayBaseOffset(LevelChunkSection[].class);
int scale = unsafe.arrayIndexScale(LevelChunkSection[].class);
if ((scale & (scale - 1)) != 0) {
throw new Error("data type scale not a power of two");
}
CHUNKSECTION_SHIFT = 31 - Integer.numberOfLeadingZeros(scale);
boolean chunkRewrite;
try {
ServerLevel.class.getDeclaredMethod("getEntityLookup");
chunkRewrite = true;
PAPER_CHUNK_GEN_ALL_ENTITIES = ChunkEntitySlices.class.getDeclaredMethod("getAllEntities");
PAPER_CHUNK_GEN_ALL_ENTITIES.setAccessible(true);
} catch (NoSuchMethodException ignored) {
chunkRewrite = false;
}
try {
// Paper - Pre-Chunk-Update
LEVEL_CHUNK_ENTITIES = LevelChunk.class.getDeclaredField("entities");
LEVEL_CHUNK_ENTITIES.setAccessible(true);
} catch (NoSuchFieldException ignored) {
}
try {
// Non-Paper
SERVER_LEVEL_ENTITY_MANAGER = ServerLevel.class.getDeclaredField("entityManager");
LEVEL_CHUNK_ENTITIES.setAccessible(true);
} catch (NoSuchFieldException ignored) {
}
POST_CHUNK_REWRITE = chunkRewrite;
} catch (RuntimeException e) {
throw e;
} catch (Throwable rethrow) {
rethrow.printStackTrace();
throw new RuntimeException(rethrow);
}
}
static boolean setSectionAtomic(
LevelChunkSection[] sections,
LevelChunkSection expected,
LevelChunkSection value,
int layer
) {
long offset = ((long) layer << CHUNKSECTION_SHIFT) + CHUNKSECTION_BASE;
if (layer >= 0 && layer < sections.length) {
return ReflectionUtils.getUnsafe().compareAndSwapObject(sections, offset, expected, value);
}
return false;
}
// There is no point in having a functional semaphore for paper servers.
private static final ThreadLocal<DelegateSemaphore> SEMAPHORE_THREAD_LOCAL =
ThreadLocal.withInitial(() -> new DelegateSemaphore(1, null));
static DelegateSemaphore applyLock(LevelChunkSection section) {
if (PaperLib.isPaper()) {
return SEMAPHORE_THREAD_LOCAL.get();
}
try {
synchronized (section) {
Unsafe unsafe = ReflectionUtils.getUnsafe();
PalettedContainer<net.minecraft.world.level.block.state.BlockState> blocks = section.getStates();
ThreadingDetector currentThreadingDetector = (ThreadingDetector) unsafe.getObject(
blocks,
fieldThreadingDetectorOffset
);
synchronized (currentThreadingDetector) {
Semaphore currentLock = (Semaphore) unsafe.getObject(currentThreadingDetector, fieldLockOffset);
if (currentLock instanceof DelegateSemaphore delegateSemaphore) {
return delegateSemaphore;
}
DelegateSemaphore newLock = new DelegateSemaphore(1, currentLock);
unsafe.putObject(currentThreadingDetector, fieldLockOffset, newLock);
return newLock;
}
}
} catch (Throwable e) {
e.printStackTrace();
throw new RuntimeException(e);
}
}
public static LevelChunk ensureLoaded(ServerLevel serverLevel, int chunkX, int chunkZ) {
if (!PaperLib.isPaper()) {
LevelChunk nmsChunk = serverLevel.getChunkSource().getChunk(chunkX, chunkZ, false);
if (nmsChunk != null) {
return nmsChunk;
}
if (Fawe.isMainThread()) {
return serverLevel.getChunk(chunkX, chunkZ);
}
} else {
LevelChunk nmsChunk = serverLevel.getChunkSource().getChunkAtIfCachedImmediately(chunkX, chunkZ);
if (nmsChunk != null) {
return nmsChunk;
}
nmsChunk = serverLevel.getChunkSource().getChunkAtIfLoadedImmediately(chunkX, chunkZ);
if (nmsChunk != null) {
return nmsChunk;
}
// Avoid "async" methods from the main thread.
if (Fawe.isMainThread()) {
return serverLevel.getChunk(chunkX, chunkZ);
}
CompletableFuture<org.bukkit.Chunk> future = serverLevel.getWorld().getChunkAtAsync(chunkX, chunkZ, true, true);
try {
CraftChunk chunk = (CraftChunk) future.get();
return chunk.getHandle();
} catch (Throwable e) {
e.printStackTrace();
}
}
return TaskManager.taskManager().sync(() -> serverLevel.getChunk(chunkX, chunkZ));
}
public static ChunkHolder getPlayerChunk(ServerLevel nmsWorld, final int chunkX, final int chunkZ) {
ChunkMap chunkMap = nmsWorld.getChunkSource().chunkMap;
try {
return (ChunkHolder) methodGetVisibleChunk.invoke(chunkMap, ChunkPos.asLong(chunkX, chunkZ));
} catch (Throwable thr) {
throw new RuntimeException(thr);
}
}
@SuppressWarnings("deprecation")
public static void sendChunk(ServerLevel nmsWorld, int chunkX, int chunkZ, boolean lighting) {
ChunkHolder chunkHolder = getPlayerChunk(nmsWorld, chunkX, chunkZ);
if (chunkHolder == null) {
return;
}
ChunkPos coordIntPair = new ChunkPos(chunkX, chunkZ);
LevelChunk levelChunk;
if (PaperLib.isPaper()) {
// getChunkAtIfLoadedImmediately is paper only
levelChunk = nmsWorld
.getChunkSource()
.getChunkAtIfLoadedImmediately(chunkX, chunkZ);
} else {
levelChunk = ((Optional<LevelChunk>) ((Either) chunkHolder
.getTickingChunkFuture() // method is not present with new paper chunk system
.getNow(ChunkHolder.UNLOADED_LEVEL_CHUNK)).left())
.orElse(null);
}
if (levelChunk == null) {
return;
}
TaskManager.taskManager().task(() -> {
ClientboundLevelChunkWithLightPacket packet;
if (PaperLib.isPaper()) {
packet = new ClientboundLevelChunkWithLightPacket(
levelChunk,
nmsWorld.getChunkSource().getLightEngine(),
null,
null,
true,
false // last false is to not bother with x-ray
);
} else {
// deprecated on paper - deprecation suppressed
packet = new ClientboundLevelChunkWithLightPacket(
levelChunk,
nmsWorld.getChunkSource().getLightEngine(),
null,
null,
true
);
}
nearbyPlayers(nmsWorld, coordIntPair).forEach(p -> p.connection.send(packet));
});
}
private static List<ServerPlayer> nearbyPlayers(ServerLevel serverLevel, ChunkPos coordIntPair) {
return serverLevel.getChunkSource().chunkMap.getPlayers(coordIntPair, false);
}
/*
NMS conversion
*/
public static LevelChunkSection newChunkSection(
final int layer,
final char[] blocks,
CachedBukkitAdapter adapter,
Registry<Biome> biomeRegistry,
@Nullable PalettedContainer<Holder<Biome>> biomes
) {
return newChunkSection(layer, null, blocks, adapter, biomeRegistry, biomes);
}
public static LevelChunkSection newChunkSection(
final int layer,
final Function<Integer, char[]> get,
char[] set,
CachedBukkitAdapter adapter,
Registry<Biome> biomeRegistry,
@Nullable PalettedContainer<Holder<Biome>> biomes
) {
if (set == null) {
return newChunkSection(layer, biomeRegistry, biomes);
}
final int[] blockToPalette = FaweCache.INSTANCE.BLOCK_TO_PALETTE.get();
final int[] paletteToBlock = FaweCache.INSTANCE.PALETTE_TO_BLOCK.get();
final long[] blockStates = FaweCache.INSTANCE.BLOCK_STATES.get();
final int[] blocksCopy = FaweCache.INSTANCE.SECTION_BLOCKS.get();
try {
int num_palette;
if (get == null) {
num_palette = createPalette(blockToPalette, paletteToBlock, blocksCopy, set, adapter, null);
} else {
num_palette = createPalette(layer, blockToPalette, paletteToBlock, blocksCopy, get, set, adapter, null);
}
int bitsPerEntry = MathMan.log2nlz(num_palette - 1);
if (bitsPerEntry > 0 && bitsPerEntry < 5) {
bitsPerEntry = 4;
} else if (bitsPerEntry > 8) {
bitsPerEntry = MathMan.log2nlz(Block.BLOCK_STATE_REGISTRY.size() - 1);
}
int bitsPerEntryNonZero = Math.max(bitsPerEntry, 1); // We do want to use zero sometimes
final int blocksPerLong = MathMan.floorZero((double) 64 / bitsPerEntryNonZero);
final int blockBitArrayEnd = MathMan.ceilZero((float) 4096 / blocksPerLong);
if (num_palette == 1) {
for (int i = 0; i < blockBitArrayEnd; i++) {
blockStates[i] = 0;
}
} else {
final BitArrayUnstretched bitArray = new BitArrayUnstretched(bitsPerEntryNonZero, 4096, blockStates);
bitArray.fromRaw(blocksCopy);
}
final long[] bits = Arrays.copyOfRange(blockStates, 0, blockBitArrayEnd);
final BitStorage nmsBits;
if (bitsPerEntry == 0) {
nmsBits = new ZeroBitStorage(4096);
} else {
nmsBits = new SimpleBitStorage(bitsPerEntry, 4096, bits);
}
List<net.minecraft.world.level.block.state.BlockState> palette;
if (bitsPerEntry < 9) {
palette = new ArrayList<>();
for (int i = 0; i < num_palette; i++) {
int ordinal = paletteToBlock[i];
blockToPalette[ordinal] = Integer.MAX_VALUE;
final BlockState state = BlockTypesCache.states[ordinal];
palette.add(((PaperweightBlockMaterial) state.getMaterial()).getState());
}
} else {
palette = List.of();
}
// Create palette with data
@SuppressWarnings("deprecation") // constructor is deprecated on paper, but needed to keep compatibility with spigot
final PalettedContainer<net.minecraft.world.level.block.state.BlockState> blockStatePalettedContainer =
new PalettedContainer<>(
Block.BLOCK_STATE_REGISTRY,
PalettedContainer.Strategy.SECTION_STATES,
PalettedContainer.Strategy.SECTION_STATES.getConfiguration(Block.BLOCK_STATE_REGISTRY, bitsPerEntry),
nmsBits,
palette
);
if (biomes == null) {
IdMap<Holder<Biome>> biomeHolderIdMap = biomeRegistry.asHolderIdMap();
biomes = new PalettedContainer<>(
biomeHolderIdMap,
biomeHolderIdMap.byIdOrThrow(WorldEditPlugin
.getInstance()
.getBukkitImplAdapter()
.getInternalBiomeId(
BiomeTypes.PLAINS)),
PalettedContainer.Strategy.SECTION_BIOMES,
null
);
}
return new LevelChunkSection(layer, blockStatePalettedContainer, biomes);
} catch (final Throwable e) {
throw e;
} finally {
Arrays.fill(blockToPalette, Integer.MAX_VALUE);
Arrays.fill(paletteToBlock, Integer.MAX_VALUE);
Arrays.fill(blockStates, 0);
Arrays.fill(blocksCopy, 0);
}
}
@SuppressWarnings("deprecation") // Only deprecated in paper
private static LevelChunkSection newChunkSection(
int layer,
Registry<Biome> biomeRegistry,
@Nullable PalettedContainer<Holder<Biome>> biomes
) {
if (biomes == null) {
return new LevelChunkSection(layer, biomeRegistry);
}
PalettedContainer<net.minecraft.world.level.block.state.BlockState> dataPaletteBlocks = new PalettedContainer<>(
Block.BLOCK_STATE_REGISTRY,
Blocks.AIR.defaultBlockState(),
PalettedContainer.Strategy.SECTION_STATES,
null
);
return new LevelChunkSection(layer, dataPaletteBlocks, biomes);
}
/**
* Create a new {@link PalettedContainer<Biome>}. Should only be used if no biome container existed beforehand.
*/
public static PalettedContainer<Holder<Biome>> getBiomePalettedContainer(
BiomeType[] biomes,
IdMap<Holder<Biome>> biomeRegistry
) {
if (biomes == null) {
return null;
}
BukkitImplAdapter<?> adapter = WorldEditPlugin.getInstance().getBukkitImplAdapter();
// Don't stream this as typically will see 1-4 biomes; stream overhead is large for the small length
Map<BiomeType, Holder<Biome>> palette = new HashMap<>();
for (BiomeType biomeType : new LinkedList<>(Arrays.asList(biomes))) {
Holder<Biome> biome;
if (biomeType == null) {
biome = biomeRegistry.byId(adapter.getInternalBiomeId(BiomeTypes.PLAINS));
} else {
biome = biomeRegistry.byId(adapter.getInternalBiomeId(biomeType));
}
palette.put(biomeType, biome);
}
int biomeCount = palette.size();
int bitsPerEntry = MathMan.log2nlz(biomeCount - 1);
Object configuration = PalettedContainer.Strategy.SECTION_STATES.getConfiguration(
new FakeIdMapBiome(biomeCount),
bitsPerEntry
);
if (bitsPerEntry > 3) {
bitsPerEntry = MathMan.log2nlz(biomeRegistry.size() - 1);
}
PalettedContainer<Holder<Biome>> biomePalettedContainer = new PalettedContainer<>(
biomeRegistry,
biomeRegistry.byIdOrThrow(adapter.getInternalBiomeId(BiomeTypes.PLAINS)),
PalettedContainer.Strategy.SECTION_BIOMES,
null
);
final Palette<Holder<Biome>> biomePalette;
if (bitsPerEntry == 0) {
biomePalette = new SingleValuePalette<>(
biomePalettedContainer.registry,
biomePalettedContainer,
new ArrayList<>(palette.values()) // Must be modifiable
);
} else if (bitsPerEntry == 4) {
biomePalette = LinearPalette.create(
4,
biomePalettedContainer.registry,
biomePalettedContainer,
new ArrayList<>(palette.values()) // Must be modifiable
);
} else if (bitsPerEntry < 9) {
biomePalette = HashMapPalette.create(
bitsPerEntry,
biomePalettedContainer.registry,
biomePalettedContainer,
new ArrayList<>(palette.values()) // Must be modifiable
);
} else {
biomePalette = GlobalPalette.create(
bitsPerEntry,
biomePalettedContainer.registry,
biomePalettedContainer,
null // unused
);
}
int bitsPerEntryNonZero = Math.max(bitsPerEntry, 1); // We do want to use zero sometimes
final int blocksPerLong = MathMan.floorZero((double) 64 / bitsPerEntryNonZero);
final int arrayLength = MathMan.ceilZero(64f / blocksPerLong);
BitStorage bitStorage = bitsPerEntry == 0 ? new ZeroBitStorage(64) : new SimpleBitStorage(
bitsPerEntry,
64,
new long[arrayLength]
);
try {
Object data = dataConstructor.newInstance(configuration, bitStorage, biomePalette);
fieldData.set(biomePalettedContainer, data);
int index = 0;
for (int y = 0; y < 4; y++) {
for (int z = 0; z < 4; z++) {
for (int x = 0; x < 4; x++, index++) {
BiomeType biomeType = biomes[index];
if (biomeType == null) {
continue;
}
Holder<Biome> biome = biomeRegistry.byId(WorldEditPlugin
.getInstance()
.getBukkitImplAdapter()
.getInternalBiomeId(biomeType));
if (biome == null) {
continue;
}
biomePalettedContainer.set(x, y, z, biome);
}
}
}
} catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException(e);
}
return biomePalettedContainer;
}
public static void clearCounts(final LevelChunkSection section) throws IllegalAccessException {
fieldTickingFluidCount.setShort(section, (short) 0);
fieldTickingBlockCount.setShort(section, (short) 0);
}
public static BiomeType adapt(Holder<Biome> biome, LevelAccessor levelAccessor) {
final Registry<Biome> biomeRegistry = levelAccessor.registryAccess().registryOrThrow(BIOME);
if (biomeRegistry.getKey(biome.value()) == null) {
return biomeRegistry.asHolderIdMap().getId(biome) == -1 ? BiomeTypes.OCEAN
: null;
}
return BiomeTypes.get(biome.unwrapKey().orElseThrow().location().toString());
}
static void removeBeacon(BlockEntity beacon, LevelChunk levelChunk) {
try {
if (levelChunk.loaded || levelChunk.level.isClientSide()) {
BlockEntity blockEntity = levelChunk.blockEntities.remove(beacon.getBlockPos());
if (blockEntity != null) {
if (!levelChunk.level.isClientSide) {
methodRemoveGameEventListener.invoke(levelChunk, beacon, levelChunk.level);
}
fieldRemove.set(beacon, true);
}
}
methodremoveTickingBlockEntity.invoke(levelChunk, beacon.getBlockPos());
} catch (Throwable throwable) {
throwable.printStackTrace();
}
}
static List<Entity> getEntities(LevelChunk chunk) {
ExceptionCollector<RuntimeException> collector = new ExceptionCollector<>();
if (PaperLib.isPaper()) {
if (POST_CHUNK_REWRITE) {
try {
//noinspection unchecked
return (List<Entity>) PAPER_CHUNK_GEN_ALL_ENTITIES.invoke(chunk.level.getEntityLookup().getChunk(chunk.locX, chunk.locZ));
} catch (IllegalAccessException | InvocationTargetException e) {
throw new RuntimeException("Failed to lookup entities [POST_CHUNK_REWRITE=true]", e);
}
}
try {
EntityList entityList = (EntityList) LEVEL_CHUNK_ENTITIES.get(chunk);
return List.of(entityList.getRawData());
} catch (IllegalAccessException e) {
collector.add(new RuntimeException("Failed to lookup entities [POST_CHUNK_REWRITE=false]", e));
// fall through
}
}
try {
//noinspection unchecked
return ((PersistentEntitySectionManager<Entity>) (SERVER_LEVEL_ENTITY_MANAGER.get(chunk.level))).getEntities(chunk.getPos());
} catch (IllegalAccessException e) {
collector.add(new RuntimeException("Failed to lookup entities [PAPER=false]", e));
}
collector.throwIfPresent();
return List.of();
}
record FakeIdMapBlock(int size) implements IdMap<net.minecraft.world.level.block.state.BlockState> {
@Override
public int getId(final net.minecraft.world.level.block.state.BlockState entry) {
return 0;
}
@Nullable
@Override
public net.minecraft.world.level.block.state.BlockState byId(final int index) {
return null;
}
@Nonnull
@Override
public Iterator<net.minecraft.world.level.block.state.BlockState> iterator() {
return Collections.emptyIterator();
}
}
record FakeIdMapBiome(int size) implements IdMap<Biome> {
@Override
public int getId(final Biome entry) {
return 0;
}
@Nullable
@Override
public Biome byId(final int index) {
return null;
}
@Nonnull
@Override
public Iterator<Biome> iterator() {
return Collections.emptyIterator();
}
}
}