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Implemented snapshot support for 1.2.

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By: Mike Primm <mike@primmhome.com>
This commit is contained in:
CraftBukkit/Spigot
2012-03-01 13:54:59 -06:00
parent 14196c7d71
commit 868d42aad6
2 changed files with 143 additions and 74 deletions
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156
paper-server/src/main/java/org/bukkit/craftbukkit/CraftChunk.java
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@@ -1,9 +1,13 @@
package org.bukkit.craftbukkit;
import java.lang.ref.WeakReference;
import net.minecraft.server.ChunkPosition;
import java.util.Arrays;
import net.minecraft.server.BiomeBase;
import net.minecraft.server.ChunkPosition;
import net.minecraft.server.ChunkSection;
import net.minecraft.server.EmptyChunk;
import net.minecraft.server.WorldChunkManager;
import net.minecraft.server.WorldServer;
import org.bukkit.Chunk;
@@ -13,20 +17,21 @@ import org.bukkit.block.BlockState;
import org.bukkit.craftbukkit.block.CraftBlock;
import org.bukkit.entity.Entity;
import org.bukkit.ChunkSnapshot;
import net.minecraft.server.BiomeBase;
import net.minecraft.server.WorldChunkManager;
import org.apache.commons.lang.NotImplementedException;
public class CraftChunk implements Chunk {
private WeakReference<net.minecraft.server.Chunk> weakChunk;
private WorldServer worldServer;
private int x;
private int z;
private static final byte[] emptyData = new byte[2048];
private static final short[] emptyBlockIDs = new short[4096];
private static final byte[] emptySkyLight = new byte[2048];
public CraftChunk(net.minecraft.server.Chunk chunk) {
if (!(chunk instanceof EmptyChunk)) {
this.weakChunk = new WeakReference<net.minecraft.server.Chunk>(chunk);
}
worldServer = (WorldServer) getHandle().world;
x = getHandle().x;
z = getHandle().z;
@@ -42,12 +47,15 @@ public class CraftChunk implements Chunk {
public net.minecraft.server.Chunk getHandle() {
net.minecraft.server.Chunk c = weakChunk.get();
if (c == null) {
c = worldServer.getChunkAt(x, z);
if (!(c instanceof EmptyChunk)) {
weakChunk = new WeakReference<net.minecraft.server.Chunk>(c);
}
}
return c;
}
@@ -75,19 +83,23 @@ public class CraftChunk implements Chunk {
public Entity[] getEntities() {
int count = 0, index = 0;
net.minecraft.server.Chunk chunk = getHandle();
for (int i = 0; i < 8; i++) {
count += chunk.entitySlices[i].size();
}
Entity[] entities = new Entity[count];
for (int i = 0; i < 8; i++) {
for (Object obj : chunk.entitySlices[i].toArray()) {
if (!(obj instanceof net.minecraft.server.Entity)) {
continue;
}
entities[index++] = ((net.minecraft.server.Entity) obj).getBukkitEntity();
}
}
return entities;
}
@@ -95,10 +107,12 @@ public class CraftChunk implements Chunk {
int index = 0;
net.minecraft.server.Chunk chunk = getHandle();
BlockState[] entities = new BlockState[chunk.tileEntities.size()];
for (Object obj : chunk.tileEntities.keySet().toArray()) {
if (!(obj instanceof ChunkPosition)) {
continue;
}
ChunkPosition position = (ChunkPosition) obj;
entities[index++] = worldServer.getWorld().getBlockAt(position.x + (chunk.x << 4), position.y, position.z + (chunk.z << 4)).getState();
}
@@ -133,16 +147,63 @@ public class CraftChunk implements Chunk {
return getChunkSnapshot(true, false, false);
}
public ChunkSnapshot getChunkSnapshot(boolean includeMaxblocky, boolean includeBiome, boolean includeBiomeTempRain) {
public ChunkSnapshot getChunkSnapshot(boolean includeMaxBlockY, boolean includeBiome, boolean includeBiomeTempRain) {
net.minecraft.server.Chunk chunk = getHandle();
byte[] buf = new byte[32768 + 16384 + 16384 + 16384]; // Get big enough buffer for whole chunk
//chunk.getData(buf, 0, 0, 0, 16, 128, 16, 0); // Get whole chunk
byte[] hmap = null;
if (true) throw new NotImplementedException("Chunk snapshots do not yet work"); // TODO: Snapshots.
ChunkSection[] cs = chunk.h(); /* Get sections */
short[][] sectionBlockIDs = new short[cs.length][];
byte[][] sectionBlockData = new byte[cs.length][];
byte[][] sectionSkyLights = new byte[cs.length][];
byte[][] sectionEmitLights = new byte[cs.length][];
boolean[] sectionEmpty = new boolean[cs.length];
if (includeMaxblocky) {
hmap = new byte[256]; // Get copy of height map
for (int i = 0; i < cs.length; i++) {
if (cs[i] == null) { /* Section is empty? */
sectionBlockIDs[i] = emptyBlockIDs;
sectionBlockData[i] = emptyData;
sectionSkyLights[i] = emptySkyLight;
sectionEmitLights[i] = emptyData;
sectionEmpty[i] = true;
} else { /* Not empty */
short[] blockids = new short[4096];
byte[] baseids = cs[i].g();
/* Copy base IDs */
for (int j = 0; j < 4096; j++) {
blockids[j] = (short) (baseids[j] & 0xFF);
}
if (cs[i].h() != null) { /* If we've got extended IDs */
byte[] extids = cs[i].h().a;
for (int j = 0; j < 2048; j++) {
short b = (short) (extids[j] & 0xFF);
if (b == 0) {
continue;
}
blockids[j<<1] |= (b & 0xF0) << 4;
blockids[(j<<1)+1] |= (b & 0x0F) << 8;
}
}
sectionBlockIDs[i] = blockids;
/* Get block data nibbles */
sectionBlockData[i] = new byte[2048];
System.arraycopy(cs[i].i().a, 0, sectionBlockData[i], 0, 2048);
sectionSkyLights[i] = new byte[2048];
System.arraycopy(cs[i].k().a, 0, sectionSkyLights[i], 0, 2048);
sectionEmitLights[i] = new byte[2048];
System.arraycopy(cs[i].j().a, 0, sectionEmitLights[i], 0, 2048);
}
}
int[] hmap = null;
if (includeMaxBlockY) {
hmap = new int[256]; // Get copy of height map
System.arraycopy(chunk.heightMap, 0, hmap, 0, 256);
}
@@ -162,44 +223,21 @@ public class CraftChunk implements Chunk {
biomeTemp = new double[256];
biomeRain = new double[256];
float[] dat = wcm.getTemperatures((float[]) null, getX() << 4, getZ() << 4, 16, 16);
for (int i = 0; i < 256; i++)
for (int i = 0; i < 256; i++) {
biomeTemp[i] = dat[i];
}
dat = wcm.getWetness((float[]) null, getX() << 4, getZ() << 4, 16, 16);
for (int i = 0; i < 256; i++)
for (int i = 0; i < 256; i++) {
biomeRain[i] = dat[i];
}
}
}
World world = getWorld();
return new CraftChunkSnapshot(getX(), getZ(), world.getName(), world.getFullTime(), buf, hmap, biome, biomeTemp, biomeRain);
}
/**
* Empty chunk snapshot - nothing but air blocks, but can include valid biome data
*/
private static class EmptyChunkSnapshot extends CraftChunkSnapshot {
EmptyChunkSnapshot(int x, int z, String worldName, long time, BiomeBase[] biome, double[] biomeTemp, double[] biomeRain) {
super(x, z, worldName, time, null, null, biome, biomeTemp, biomeRain);
}
public final int getBlockTypeId(int x, int y, int z) {
return 0;
}
public final int getBlockData(int x, int y, int z) {
return 0;
}
public final int getBlockSkyLight(int x, int y, int z) {
return 15;
}
public final int getBlockEmittedLight(int x, int y, int z) {
return 0;
}
public final int getHighestBlockYAt(int x, int z) {
return 0;
}
return new CraftChunkSnapshot(getX(), getZ(), world.getName(), world.getFullTime(), sectionBlockIDs, sectionBlockData, sectionSkyLights, sectionEmitLights, sectionEmpty, hmap, biome, biomeTemp, biomeRain);
}
public static ChunkSnapshot getEmptyChunkSnapshot(int x, int z, CraftWorld world, boolean includeBiome, boolean includeBiomeTempRain) {
@@ -219,13 +257,39 @@ public class CraftChunk implements Chunk {
biomeTemp = new double[256];
biomeRain = new double[256];
float[] dat = wcm.getTemperatures((float[]) null, x << 4, z << 4, 16, 16);
for (int i = 0; i < 256; i++)
for (int i = 0; i < 256; i++) {
biomeTemp[i] = dat[i];
}
dat = wcm.getWetness((float[]) null, x << 4, z << 4, 16, 16);
for (int i = 0; i < 256; i++)
for (int i = 0; i < 256; i++) {
biomeRain[i] = dat[i];
}
}
}
return new EmptyChunkSnapshot(x, z, world.getName(), world.getFullTime(), biome, biomeTemp, biomeRain);
/* Fill with empty data */
int hSection = world.getMaxHeight() >> 4;
short[][] blockIDs = new short[hSection][];
byte[][] skyLight = new byte[hSection][];
byte[][] emitLight = new byte[hSection][];
byte[][] blockData = new byte[hSection][];
boolean[] empty = new boolean[hSection];
for (int i = 0; i < hSection; i++) {
blockIDs[i] = emptyBlockIDs;
skyLight[i] = emptySkyLight;
emitLight[i] = emptyData;
blockData[i] = emptyData;
empty[i] = true;
}
return new CraftChunkSnapshot(x, z, world.getName(), world.getFullTime(), blockIDs, blockData, skyLight, emitLight, empty, new int[256], biome, biomeTemp, biomeRain);
}
static {
Arrays.fill(emptySkyLight, (byte) 0xFF);
}
}