366 lines
13 KiB
Java
366 lines
13 KiB
Java
package net.minecraft.server;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Set;
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import java.util.concurrent.ConcurrentHashMap;
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import net.minecraft.util.com.google.common.collect.Lists;
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import org.apache.logging.log4j.LogManager;
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import org.apache.logging.log4j.Logger;
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// CraftBukkit start
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import java.util.Random;
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import org.bukkit.Server;
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import org.bukkit.craftbukkit.chunkio.ChunkIOExecutor;
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import org.bukkit.craftbukkit.util.LongHash;
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import org.bukkit.craftbukkit.util.LongHashSet;
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import org.bukkit.craftbukkit.util.LongObjectHashMap;
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import org.bukkit.event.world.ChunkUnloadEvent;
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// CraftBukkit end
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public class ChunkProviderServer implements IChunkProvider {
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private static final Logger b = LogManager.getLogger();
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// CraftBukkit start - private -> public
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public LongHashSet unloadQueue = new LongHashSet(); // LongHashSet
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public Chunk emptyChunk;
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public IChunkProvider chunkProvider;
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private IChunkLoader f;
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public boolean forceChunkLoad = false; // true -> false
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public LongObjectHashMap<Chunk> chunks = new LongObjectHashMap<Chunk>();
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public WorldServer world;
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// CraftBukkit end
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public ChunkProviderServer(WorldServer worldserver, IChunkLoader ichunkloader, IChunkProvider ichunkprovider) {
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this.emptyChunk = new EmptyChunk(worldserver, 0, 0);
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this.world = worldserver;
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this.f = ichunkloader;
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this.chunkProvider = ichunkprovider;
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}
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public boolean isChunkLoaded(int i, int j) {
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return this.chunks.containsKey(LongHash.toLong(i, j)); // CraftBukkit
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}
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// CraftBukkit start - Change return type to Collection and return the values of our chunk map
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public java.util.Collection a() {
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// return this.chunkList;
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return this.chunks.values();
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// CraftBukkit end
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}
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public void queueUnload(int i, int j) {
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if (this.world.worldProvider.e()) {
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ChunkCoordinates chunkcoordinates = this.world.getSpawn();
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int k = i * 16 + 8 - chunkcoordinates.x;
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int l = j * 16 + 8 - chunkcoordinates.z;
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short short1 = 128;
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// CraftBukkit start
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if (k < -short1 || k > short1 || l < -short1 || l > short1 || !(this.world.keepSpawnInMemory)) { // Added 'this.world.keepSpawnInMemory'
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this.unloadQueue.add(i, j);
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Chunk c = this.chunks.get(LongHash.toLong(i, j));
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if (c != null) {
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c.mustSave = true;
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}
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}
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// CraftBukkit end
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} else {
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// CraftBukkit start
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this.unloadQueue.add(i, j);
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Chunk c = this.chunks.get(LongHash.toLong(i, j));
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if (c != null) {
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c.mustSave = true;
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}
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// CraftBukkit end
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}
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}
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public void b() {
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Iterator iterator = this.chunks.values().iterator(); // CraftBukkit
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while (iterator.hasNext()) {
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Chunk chunk = (Chunk) iterator.next();
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this.queueUnload(chunk.locX, chunk.locZ);
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}
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}
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// CraftBukkit start - Add async variant, provide compatibility
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public Chunk getChunkAt(int i, int j) {
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return getChunkAt(i, j, null);
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}
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public Chunk getChunkAt(int i, int j, Runnable runnable) {
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this.unloadQueue.remove(i, j);
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Chunk chunk = this.chunks.get(LongHash.toLong(i, j));
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ChunkRegionLoader loader = null;
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if (this.f instanceof ChunkRegionLoader) {
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loader = (ChunkRegionLoader) this.f;
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}
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// We can only use the queue for already generated chunks
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if (chunk == null && loader != null && loader.chunkExists(this.world, i, j)) {
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if (runnable != null) {
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ChunkIOExecutor.queueChunkLoad(this.world, loader, this, i, j, runnable);
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return null;
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} else {
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chunk = ChunkIOExecutor.syncChunkLoad(this.world, loader, this, i, j);
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}
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} else if (chunk == null) {
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chunk = this.originalGetChunkAt(i, j);
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}
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// If we didn't load the chunk async and have a callback run it now
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if (runnable != null) {
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runnable.run();
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}
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return chunk;
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}
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public Chunk originalGetChunkAt(int i, int j) {
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this.unloadQueue.remove(i, j);
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Chunk chunk = (Chunk) this.chunks.get(LongHash.toLong(i, j));
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boolean newChunk = false;
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if (chunk == null) {
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chunk = this.loadChunk(i, j);
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if (chunk == null) {
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if (this.chunkProvider == null) {
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chunk = this.emptyChunk;
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} else {
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try {
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chunk = this.chunkProvider.getOrCreateChunk(i, j);
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} catch (Throwable throwable) {
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CrashReport crashreport = CrashReport.a(throwable, "Exception generating new chunk");
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CrashReportSystemDetails crashreportsystemdetails = crashreport.a("Chunk to be generated");
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crashreportsystemdetails.a("Location", String.format("%d,%d", new Object[] { Integer.valueOf(i), Integer.valueOf(j)}));
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crashreportsystemdetails.a("Position hash", Long.valueOf(LongHash.toLong(i, j))); // CraftBukkit - Use LongHash
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crashreportsystemdetails.a("Generator", this.chunkProvider.getName());
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throw new ReportedException(crashreport);
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}
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}
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newChunk = true; // CraftBukkit
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}
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this.chunks.put(LongHash.toLong(i, j), chunk); // CraftBukkit
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chunk.addEntities();
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// CraftBukkit start
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Server server = this.world.getServer();
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if (server != null) {
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/*
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* If it's a new world, the first few chunks are generated inside
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* the World constructor. We can't reliably alter that, so we have
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* no way of creating a CraftWorld/CraftServer at that point.
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*/
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server.getPluginManager().callEvent(new org.bukkit.event.world.ChunkLoadEvent(chunk.bukkitChunk, newChunk));
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}
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// CraftBukkit end
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chunk.a(this, this, i, j);
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}
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return chunk;
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}
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public Chunk getOrCreateChunk(int i, int j) {
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// CraftBukkit start
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Chunk chunk = (Chunk) this.chunks.get(LongHash.toLong(i, j));
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chunk = chunk == null ? (!this.world.isLoading && !this.forceChunkLoad ? this.emptyChunk : this.getChunkAt(i, j)) : chunk;
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if (chunk == this.emptyChunk) return chunk;
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if (i != chunk.locX || j != chunk.locZ) {
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b.error("Chunk (" + chunk.locX + ", " + chunk.locZ + ") stored at (" + i + ", " + j + ") in world '" + world.getWorld().getName() + "'");
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b.error(chunk.getClass().getName());
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Throwable ex = new Throwable();
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ex.fillInStackTrace();
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ex.printStackTrace();
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}
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return chunk;
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// CraftBukkit end
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}
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public Chunk loadChunk(int i, int j) { // CraftBukkit - private -> public
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if (this.f == null) {
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return null;
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} else {
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try {
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Chunk chunk = this.f.a(this.world, i, j);
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if (chunk != null) {
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chunk.p = this.world.getTime();
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if (this.chunkProvider != null) {
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this.chunkProvider.recreateStructures(i, j);
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}
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}
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return chunk;
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} catch (Exception exception) {
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b.error("Couldn\'t load chunk", exception);
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return null;
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}
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}
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}
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public void saveChunkNOP(Chunk chunk) { // CraftBukkit - private -> public
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if (this.f != null) {
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try {
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this.f.b(this.world, chunk);
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} catch (Exception exception) {
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b.error("Couldn\'t save entities", exception);
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}
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}
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}
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public void saveChunk(Chunk chunk) { // CraftBukkit - private -> public
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if (this.f != null) {
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try {
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chunk.p = this.world.getTime();
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this.f.a(this.world, chunk);
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// CraftBukkit start - IOException to Exception
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} catch (Exception ioexception) {
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b.error("Couldn\'t save chunk", ioexception);
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/* Remove extra exception
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} catch (ExceptionWorldConflict exceptionworldconflict) {
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b.error("Couldn\'t save chunk; already in use by another instance of Minecraft?", exceptionworldconflict);
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// CraftBukkit end */
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}
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}
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}
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public void getChunkAt(IChunkProvider ichunkprovider, int i, int j) {
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Chunk chunk = this.getOrCreateChunk(i, j);
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if (!chunk.done) {
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chunk.p();
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if (this.chunkProvider != null) {
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this.chunkProvider.getChunkAt(ichunkprovider, i, j);
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// CraftBukkit start
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BlockSand.instaFall = true;
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Random random = new Random();
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random.setSeed(world.getSeed());
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long xRand = random.nextLong() / 2L * 2L + 1L;
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long zRand = random.nextLong() / 2L * 2L + 1L;
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random.setSeed((long) i * xRand + (long) j * zRand ^ world.getSeed());
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org.bukkit.World world = this.world.getWorld();
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if (world != null) {
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this.world.populating = true;
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try {
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for (org.bukkit.generator.BlockPopulator populator : world.getPopulators()) {
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populator.populate(world, random, chunk.bukkitChunk);
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}
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} finally {
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this.world.populating = false;
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}
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}
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BlockSand.instaFall = false;
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this.world.getServer().getPluginManager().callEvent(new org.bukkit.event.world.ChunkPopulateEvent(chunk.bukkitChunk));
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// CraftBukkit end
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chunk.e();
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}
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}
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}
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public boolean saveChunks(boolean flag, IProgressUpdate iprogressupdate) {
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int i = 0;
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// CraftBukkit start
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Iterator iterator = this.chunks.values().iterator();
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while (iterator.hasNext()) {
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Chunk chunk = (Chunk) iterator.next();
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// CraftBukkit end
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if (flag) {
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this.saveChunkNOP(chunk);
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}
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if (chunk.a(flag)) {
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this.saveChunk(chunk);
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chunk.n = false;
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++i;
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if (i == 24 && !flag) {
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return false;
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}
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}
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}
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return true;
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}
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public void c() {
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if (this.f != null) {
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this.f.b();
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}
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}
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public boolean unloadChunks() {
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if (!this.world.savingDisabled) {
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// CraftBukkit start
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Server server = this.world.getServer();
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for (int i = 0; i < 100 && !this.unloadQueue.isEmpty(); i++) {
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long chunkcoordinates = this.unloadQueue.popFirst();
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Chunk chunk = this.chunks.get(chunkcoordinates);
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if (chunk == null) continue;
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ChunkUnloadEvent event = new ChunkUnloadEvent(chunk.bukkitChunk);
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server.getPluginManager().callEvent(event);
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if (!event.isCancelled()) {
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if (chunk != null) {
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chunk.removeEntities();
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this.saveChunk(chunk);
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this.saveChunkNOP(chunk);
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this.chunks.remove(chunkcoordinates); // CraftBukkit
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}
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// this.unloadQueue.remove(olong);
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// this.chunks.remove(olong.longValue());
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}
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}
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// CraftBukkit end
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if (this.f != null) {
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this.f.a();
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}
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}
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return this.chunkProvider.unloadChunks();
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}
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public boolean canSave() {
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return !this.world.savingDisabled;
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}
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public String getName() {
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// CraftBukkit - this.chunks.count() -> .values().size()
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return "ServerChunkCache: " + this.chunks.values().size() + " Drop: " + this.unloadQueue.size();
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}
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public List getMobsFor(EnumCreatureType enumcreaturetype, int i, int j, int k) {
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return this.chunkProvider.getMobsFor(enumcreaturetype, i, j, k);
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}
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public ChunkPosition findNearestMapFeature(World world, String s, int i, int j, int k) {
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return this.chunkProvider.findNearestMapFeature(world, s, i, j, k);
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}
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public int getLoadedChunks() {
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// CraftBukkit - this.chunks.count() -> .values().size()
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return this.chunks.values().size();
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}
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public void recreateStructures(int i, int j) {}
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}
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