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https://github.com/Minestom/Minestom.git
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8a5c610b7b
Delay light sending, send lighting slower, fix sending multiple times --------- Co-authored-by: mworzala <mattheworzala@gmail.com>
343 lines
14 KiB
Java
343 lines
14 KiB
Java
package net.minestom.server.instance;
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import com.extollit.gaming.ai.path.model.ColumnarOcclusionFieldList;
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import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
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import net.minestom.server.MinecraftServer;
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import net.minestom.server.coordinate.Point;
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import net.minestom.server.entity.Entity;
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import net.minestom.server.entity.Player;
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import net.minestom.server.entity.pathfinding.PFBlock;
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import net.minestom.server.instance.block.Block;
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import net.minestom.server.instance.block.BlockHandler;
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import net.minestom.server.network.NetworkBuffer;
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import net.minestom.server.network.packet.server.CachedPacket;
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import net.minestom.server.network.packet.server.play.ChunkDataPacket;
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import net.minestom.server.network.packet.server.play.UpdateLightPacket;
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import net.minestom.server.network.packet.server.play.data.ChunkData;
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import net.minestom.server.network.packet.server.play.data.LightData;
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import net.minestom.server.snapshot.ChunkSnapshot;
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import net.minestom.server.snapshot.SnapshotImpl;
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import net.minestom.server.snapshot.SnapshotUpdater;
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import net.minestom.server.utils.ArrayUtils;
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import net.minestom.server.utils.MathUtils;
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import net.minestom.server.utils.ObjectPool;
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import net.minestom.server.utils.chunk.ChunkUtils;
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import net.minestom.server.world.biomes.Biome;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import org.jglrxavpok.hephaistos.nbt.NBT;
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import org.jglrxavpok.hephaistos.nbt.NBTCompound;
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import java.util.*;
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import static net.minestom.server.utils.chunk.ChunkUtils.toSectionRelativeCoordinate;
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/**
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* Represents a {@link Chunk} which store each individual block in memory.
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* <p>
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* WARNING: not thread-safe.
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*/
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public class DynamicChunk extends Chunk {
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protected List<Section> sections;
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// Key = ChunkUtils#getBlockIndex
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protected final Int2ObjectOpenHashMap<Block> entries = new Int2ObjectOpenHashMap<>(0);
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protected final Int2ObjectOpenHashMap<Block> tickableMap = new Int2ObjectOpenHashMap<>(0);
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private long lastChange;
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final CachedPacket chunkCache = new CachedPacket(this::createChunkPacket);
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public DynamicChunk(@NotNull Instance instance, int chunkX, int chunkZ) {
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super(instance, chunkX, chunkZ, true);
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var sectionsTemp = new Section[maxSection - minSection];
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Arrays.setAll(sectionsTemp, value -> new Section());
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this.sections = List.of(sectionsTemp);
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}
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@Override
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public void setBlock(int x, int y, int z, @NotNull Block block) {
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assertLock();
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this.lastChange = System.currentTimeMillis();
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this.chunkCache.invalidate();
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// Update pathfinder
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if (columnarSpace != null) {
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final ColumnarOcclusionFieldList columnarOcclusionFieldList = columnarSpace.occlusionFields();
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final var blockDescription = PFBlock.get(block);
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columnarOcclusionFieldList.onBlockChanged(x, y, z, blockDescription, 0);
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}
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Section section = getSectionAt(y);
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section.blockPalette()
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.set(toSectionRelativeCoordinate(x), toSectionRelativeCoordinate(y), toSectionRelativeCoordinate(z), block.stateId());
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final int index = ChunkUtils.getBlockIndex(x, y, z);
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// Handler
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final BlockHandler handler = block.handler();
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if (handler != null || block.hasNbt() || block.registry().isBlockEntity()) {
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this.entries.put(index, block);
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} else {
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this.entries.remove(index);
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}
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// Block tick
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if (handler != null && handler.isTickable()) {
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this.tickableMap.put(index, block);
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} else {
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this.tickableMap.remove(index);
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}
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}
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@Override
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public void setBiome(int x, int y, int z, @NotNull Biome biome) {
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assertLock();
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this.chunkCache.invalidate();
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Section section = getSectionAt(y);
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section.biomePalette().set(
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toSectionRelativeCoordinate(x) / 4,
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toSectionRelativeCoordinate(y) / 4,
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toSectionRelativeCoordinate(z) / 4, biome.id());
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}
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@Override
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public @NotNull List<Section> getSections() {
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return sections;
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}
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@Override
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public @NotNull Section getSection(int section) {
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return sections.get(section - minSection);
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}
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@Override
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public void tick(long time) {
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if (tickableMap.isEmpty()) return;
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tickableMap.int2ObjectEntrySet().fastForEach(entry -> {
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final int index = entry.getIntKey();
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final Block block = entry.getValue();
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final BlockHandler handler = block.handler();
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if (handler == null) return;
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final Point blockPosition = ChunkUtils.getBlockPosition(index, chunkX, chunkZ);
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handler.tick(new BlockHandler.Tick(block, instance, blockPosition));
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});
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}
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@Override
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public @Nullable Block getBlock(int x, int y, int z, @NotNull Condition condition) {
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assertLock();
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if (y < minSection * CHUNK_SECTION_SIZE || y >= maxSection * CHUNK_SECTION_SIZE)
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return Block.AIR; // Out of bounds
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// Verify if the block object is present
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if (condition != Condition.TYPE) {
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final Block entry = !entries.isEmpty() ?
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entries.get(ChunkUtils.getBlockIndex(x, y, z)) : null;
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if (entry != null || condition == Condition.CACHED) {
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return entry;
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}
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}
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// Retrieve the block from state id
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final Section section = getSectionAt(y);
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final int blockStateId = section.blockPalette()
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.get(toSectionRelativeCoordinate(x), toSectionRelativeCoordinate(y), toSectionRelativeCoordinate(z));
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return Objects.requireNonNullElse(Block.fromStateId((short) blockStateId), Block.AIR);
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}
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@Override
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public @NotNull Biome getBiome(int x, int y, int z) {
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assertLock();
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final Section section = getSectionAt(y);
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final int id = section.biomePalette()
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.get(toSectionRelativeCoordinate(x) / 4, toSectionRelativeCoordinate(y) / 4, toSectionRelativeCoordinate(z) / 4);
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return MinecraftServer.getBiomeManager().getById(id);
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}
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@Override
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public long getLastChangeTime() {
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return lastChange;
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}
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@Override
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public void sendChunk(@NotNull Player player) {
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if (!isLoaded()) return;
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player.sendPacket(chunkCache);
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}
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@Override
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public void sendChunk() {
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if (!isLoaded()) return;
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sendPacketToViewers(chunkCache);
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}
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@Override
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public @NotNull Chunk copy(@NotNull Instance instance, int chunkX, int chunkZ) {
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DynamicChunk dynamicChunk = new DynamicChunk(instance, chunkX, chunkZ);
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dynamicChunk.sections = sections.stream().map(Section::clone).toList();
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dynamicChunk.entries.putAll(entries);
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return dynamicChunk;
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}
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@Override
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public void reset() {
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for (Section section : sections) section.clear();
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this.entries.clear();
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}
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private @NotNull ChunkDataPacket createChunkPacket() {
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final NBTCompound heightmapsNBT;
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// TODO: don't hardcode heightmaps
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// Heightmap
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{
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int dimensionHeight = getInstance().getDimensionType().getHeight();
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int[] motionBlocking = new int[16 * 16];
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int[] worldSurface = new int[16 * 16];
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for (int x = 0; x < 16; x++) {
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for (int z = 0; z < 16; z++) {
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motionBlocking[x + z * 16] = 0;
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worldSurface[x + z * 16] = dimensionHeight - 1;
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}
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}
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final int bitsForHeight = MathUtils.bitsToRepresent(dimensionHeight);
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heightmapsNBT = NBT.Compound(Map.of(
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"MOTION_BLOCKING", NBT.LongArray(encodeBlocks(motionBlocking, bitsForHeight)),
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"WORLD_SURFACE", NBT.LongArray(encodeBlocks(worldSurface, bitsForHeight))));
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}
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// Data
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final byte[] data;
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synchronized (this) {
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data = ObjectPool.PACKET_POOL.use(buffer ->
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NetworkBuffer.makeArray(networkBuffer -> {
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for (Section section : sections) networkBuffer.write(section);
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}));
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}
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if (this instanceof LightingChunk light) {
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if (light.lightCache.isValid()) {
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return new ChunkDataPacket(chunkX, chunkZ,
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new ChunkData(heightmapsNBT, data, entries),
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createLightData(true));
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} else {
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// System.out.println("Regenerating light for chunk " + chunkX + " " + chunkZ);
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LightingChunk.updateAfterGeneration(light);
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return new ChunkDataPacket(chunkX, chunkZ,
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new ChunkData(heightmapsNBT, data, entries),
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createEmptyLight());
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}
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}
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return new ChunkDataPacket(chunkX, chunkZ,
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new ChunkData(heightmapsNBT, data, entries),
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createLightData(true)
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);
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}
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@NotNull UpdateLightPacket createLightPacket() {
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return new UpdateLightPacket(chunkX, chunkZ, createLightData(false));
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}
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private LightData createEmptyLight() {
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BitSet skyMask = new BitSet();
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BitSet blockMask = new BitSet();
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BitSet emptySkyMask = new BitSet();
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BitSet emptyBlockMask = new BitSet();
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List<byte[]> skyLights = new ArrayList<>();
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List<byte[]> blockLights = new ArrayList<>();
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return new LightData(skyMask, blockMask,
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emptySkyMask, emptyBlockMask,
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skyLights, blockLights);
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}
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protected LightData createLightData(boolean sendLater) {
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BitSet skyMask = new BitSet();
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BitSet blockMask = new BitSet();
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BitSet emptySkyMask = new BitSet();
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BitSet emptyBlockMask = new BitSet();
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List<byte[]> skyLights = new ArrayList<>();
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List<byte[]> blockLights = new ArrayList<>();
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int index = 0;
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for (Section section : sections) {
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index++;
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final byte[] skyLight = section.skyLight().array();
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final byte[] blockLight = section.blockLight().array();
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if (skyLight.length != 0) {
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skyLights.add(skyLight);
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skyMask.set(index);
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} else {
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emptySkyMask.set(index);
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}
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if (blockLight.length != 0) {
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blockLights.add(blockLight);
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blockMask.set(index);
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} else {
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emptyBlockMask.set(index);
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}
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}
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return new LightData(
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skyMask, blockMask,
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emptySkyMask, emptyBlockMask,
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skyLights, blockLights
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);
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}
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@Override
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public @NotNull ChunkSnapshot updateSnapshot(@NotNull SnapshotUpdater updater) {
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Section[] clonedSections = new Section[sections.size()];
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for (int i = 0; i < clonedSections.length; i++)
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clonedSections[i] = sections.get(i).clone();
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var entities = instance.getEntityTracker().chunkEntities(chunkX, chunkZ, EntityTracker.Target.ENTITIES);
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final int[] entityIds = ArrayUtils.mapToIntArray(entities, Entity::getEntityId);
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return new SnapshotImpl.Chunk(minSection, chunkX, chunkZ,
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clonedSections, entries.clone(), entityIds, updater.reference(instance),
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tagHandler().readableCopy());
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}
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private void assertLock() {
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assert Thread.holdsLock(this) : "Chunk must be locked before access";
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}
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private static final int[] MAGIC = {
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-1, -1, 0, Integer.MIN_VALUE, 0, 0, 1431655765, 1431655765, 0, Integer.MIN_VALUE,
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0, 1, 858993459, 858993459, 0, 715827882, 715827882, 0, 613566756, 613566756,
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0, Integer.MIN_VALUE, 0, 2, 477218588, 477218588, 0, 429496729, 429496729, 0,
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390451572, 390451572, 0, 357913941, 357913941, 0, 330382099, 330382099, 0, 306783378,
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306783378, 0, 286331153, 286331153, 0, Integer.MIN_VALUE, 0, 3, 252645135, 252645135,
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0, 238609294, 238609294, 0, 226050910, 226050910, 0, 214748364, 214748364, 0,
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204522252, 204522252, 0, 195225786, 195225786, 0, 186737708, 186737708, 0, 178956970,
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178956970, 0, 171798691, 171798691, 0, 165191049, 165191049, 0, 159072862, 159072862,
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0, 153391689, 153391689, 0, 148102320, 148102320, 0, 143165576, 143165576, 0,
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138547332, 138547332, 0, Integer.MIN_VALUE, 0, 4, 130150524, 130150524, 0, 126322567,
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126322567, 0, 122713351, 122713351, 0, 119304647, 119304647, 0, 116080197, 116080197,
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0, 113025455, 113025455, 0, 110127366, 110127366, 0, 107374182, 107374182, 0,
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104755299, 104755299, 0, 102261126, 102261126, 0, 99882960, 99882960, 0, 97612893,
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97612893, 0, 95443717, 95443717, 0, 93368854, 93368854, 0, 91382282, 91382282,
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0, 89478485, 89478485, 0, 87652393, 87652393, 0, 85899345, 85899345, 0,
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84215045, 84215045, 0, 82595524, 82595524, 0, 81037118, 81037118, 0, 79536431,
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79536431, 0, 78090314, 78090314, 0, 76695844, 76695844, 0, 75350303, 75350303,
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0, 74051160, 74051160, 0, 72796055, 72796055, 0, 71582788, 71582788, 0,
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70409299, 70409299, 0, 69273666, 69273666, 0, 68174084, 68174084, 0, Integer.MIN_VALUE,
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0, 5};
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private static long[] encodeBlocks(int[] blocks, int bitsPerEntry) {
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final long maxEntryValue = (1L << bitsPerEntry) - 1;
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final char valuesPerLong = (char) (64 / bitsPerEntry);
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final int magicIndex = 3 * (valuesPerLong - 1);
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final long divideMul = Integer.toUnsignedLong(MAGIC[magicIndex]);
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final long divideAdd = Integer.toUnsignedLong(MAGIC[magicIndex + 1]);
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final int divideShift = MAGIC[magicIndex + 2];
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final int size = (blocks.length + valuesPerLong - 1) / valuesPerLong;
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long[] data = new long[size];
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for (int i = 0; i < blocks.length; i++) {
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final long value = blocks[i];
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final int cellIndex = (int) (i * divideMul + divideAdd >> 32L >> divideShift);
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final int bitIndex = (i - cellIndex * valuesPerLong) * bitsPerEntry;
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data[cellIndex] = data[cellIndex] & ~(maxEntryValue << bitIndex) | (value & maxEntryValue) << bitIndex;
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}
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return data;
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}
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}
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