org.bukkit.craftbukkit.CraftChunkSnapshot Maven / Gradle / Ivy

Go to download
package org.bukkit.craftbukkit;

import net.minecraft.server.BiomeBase;
import org.bukkit.ChunkSnapshot;
import org.bukkit.block.Biome;
import org.bukkit.craftbukkit.block.CraftBlock;
import org.jetbrains.annotations.NotNull;

/**
 * Represents a static, thread-safe snapshot of chunk of blocks
 * Purpose is to allow clean, efficient copy of a chunk data to be made, and then handed off for processing in another thread (e.g. map rendering)
 */
public class CraftChunkSnapshot implements ChunkSnapshot {
  private final int x, z;
  private final String worldname;
  private final short[][] blockids; /* Block IDs, by section */
  private final byte[][] blockdata;
  private final byte[][] skylight;
  private final byte[][] emitlight;
  private final boolean[] empty;
  private final int[] hmap; // Height map
  private final long captureFulltime;
  private final BiomeBase[] biome;
  private final double[] biomeTemp;
  private final double[] biomeRain;

  CraftChunkSnapshot(int x, int z, String wname, long wtime, short[][] sectionBlockIDs, byte[][] sectionBlockData, byte[][] sectionSkyLights, byte[][] sectionEmitLights, boolean[] sectionEmpty, int[] hmap, BiomeBase[] biome, double[] biomeTemp, double[] biomeRain) {
    this.x = x;
    this.z = z;
    this.worldname = wname;
    this.captureFulltime = wtime;
    this.blockids = sectionBlockIDs;
    this.blockdata = sectionBlockData;
    this.skylight = sectionSkyLights;
    this.emitlight = sectionEmitLights;
    this.empty = sectionEmpty;
    this.hmap = hmap;
    this.biome = biome;
    this.biomeTemp = biomeTemp;
    this.biomeRain = biomeRain;
  }

  public int getX() {
    return x;
  }

  public int getZ() {
    return z;
  }

  public String getWorldName() {
    return worldname;
  }

  public final int getBlockTypeId(int x, int y, int z) {
    return blockids[y >> 4][((y & 0xF) << 8) | (z << 4) | x];
  }

  public final int getBlockData(int x, int y, int z) {
    int off = ((y & 0xF) << 7) | (z << 3) | (x >> 1);
    return (blockdata[y >> 4][off] >> ((x & 1) << 2)) & 0xF;
  }

  public final int getBlockSkyLight(int x, int y, int z) {
    int off = ((y & 0xF) << 7) | (z << 3) | (x >> 1);
    return (skylight[y >> 4][off] >> ((x & 1) << 2)) & 0xF;
  }

  public final int getBlockEmittedLight(int x, int y, int z) {
    int off = ((y & 0xF) << 7) | (z << 3) | (x >> 1);
    return (emitlight[y >> 4][off] >> ((x & 1) << 2)) & 0xF;
  }

  public final int getHighestBlockYAt(int x, int z) {
    return hmap[z << 4 | x];
  }

  public final Biome getBiome(int x, int z) {
    return CraftBlock.biomeBaseToBiome(biome[z << 4 | x]);
  }

  public final double getRawBiomeTemperature(int x, int z) {
    return biomeTemp[z << 4 | x];
  }

  public final double getRawBiomeRainfall(int x, int z) {
    return biomeRain[z << 4 | x];
  }

  public final long getCaptureFullTime() {
    return captureFulltime;
  }

  public final boolean isSectionEmpty(int sy) {
    return empty[sy];
  }

  @Override
  public int compareTo(@NotNull ChunkSnapshot o) {
    if (x == o.getX() || z == o.getZ())
      return 0;
    return x < o.getX() && z < o.getZ() ? -1 : 1;
  }
}