1198 lines
46 KiB
Java
1198 lines
46 KiB
Java
/*
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* Minecraft Forge
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* Copyright (c) 2016-2018.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation version 2.1
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* of the License.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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package net.minecraftforge.common;
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import java.io.File;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import java.util.LinkedHashSet;
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import java.util.List;
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import java.util.Map;
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import java.util.Objects;
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import java.util.Set;
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import java.util.UUID;
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import javax.annotation.Nullable;
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import net.minecraft.entity.Entity;
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import net.minecraft.nbt.CompressedStreamTools;
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import net.minecraft.nbt.NBTTagCompound;
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import net.minecraft.nbt.NBTTagList;
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import net.minecraft.tileentity.TileEntity;
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import net.minecraft.util.ClassInheritanceMultiMap;
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import net.minecraft.util.math.ChunkPos;
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import net.minecraft.util.math.MathHelper;
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import net.minecraft.world.World;
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import net.minecraft.world.WorldServer;
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import net.minecraft.world.chunk.Chunk;
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import net.minecraft.world.chunk.storage.AnvilChunkLoader;
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import net.minecraft.world.storage.ThreadedFileIOBase;
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import net.minecraftforge.common.config.ConfigCategory;
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import net.minecraftforge.common.config.Configuration;
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import net.minecraftforge.common.config.Property;
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import net.minecraftforge.common.util.Constants;
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import net.minecraftforge.fml.server.ServerLifecycleHooks;
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import net.minecraftforge.fml.common.FMLCommonHandler;
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import net.minecraftforge.fml.common.FMLLog;
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import net.minecraftforge.fml.common.Loader;
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import net.minecraftforge.fml.ModContainer;
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import com.google.common.cache.Cache;
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import com.google.common.cache.CacheBuilder;
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import com.google.common.collect.ArrayListMultimap;
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import com.google.common.collect.BiMap;
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import com.google.common.collect.HashBiMap;
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import com.google.common.collect.HashMultimap;
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.ImmutableListMultimap;
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import com.google.common.collect.ImmutableSet;
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import com.google.common.collect.ImmutableSetMultimap;
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import com.google.common.collect.LinkedHashMultimap;
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import com.google.common.collect.ListMultimap;
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import com.google.common.collect.MapMaker;
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import com.google.common.collect.Maps;
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import com.google.common.collect.Multimap;
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import com.google.common.collect.SetMultimap;
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import com.google.common.collect.Sets;
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/**
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* Manages chunkloading for mods.
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*
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* The basic principle is a ticket based system.
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* 1. Mods register a callback {@link #setForcedChunkLoadingCallback(Object, LoadingCallback)}
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* 2. Mods ask for a ticket {@link #requestTicket(Object, World, Type)} and then hold on to that ticket.
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* 3. Mods request chunks to stay loaded {@link #forceChunk(Ticket, ChunkPos)} or remove chunks from force loading {@link #unforceChunk(Ticket, ChunkPos)}.
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* 4. When a world unloads, the tickets associated with that world are saved by the chunk manager.
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* 5. When a world loads, saved tickets are offered to the mods associated with the tickets. The {@link Ticket#getModData()} that is set by the mod should be used to re-register
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* chunks to stay loaded (and maybe take other actions).
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*
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* The chunkloading is configurable at runtime. The file "config/forgeChunkLoading.cfg" contains both default configuration for chunkloading, and a sample individual mod
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* specific override section.
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*
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* @author cpw
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*
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*/
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public class ForgeChunkManager
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{
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private static int defaultMaxCount;
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private static int defaultMaxChunks;
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private static boolean overridesEnabled;
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private static Map<World, Multimap<String, Ticket>> tickets = new MapMaker().weakKeys().makeMap();
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private static Map<String, Integer> ticketConstraints = Maps.newHashMap();
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private static Map<String, Integer> chunkConstraints = Maps.newHashMap();
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private static SetMultimap<String, Ticket> playerTickets = HashMultimap.create();
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private static Map<String, LoadingCallback> callbacks = Maps.newHashMap();
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private static Map<World, ImmutableSetMultimap<ChunkPos,Ticket>> forcedChunks = new MapMaker().weakKeys().makeMap();
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private static BiMap<UUID,Ticket> pendingEntities = HashBiMap.create();
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private static Map<World,Cache<Long, ChunkEntry>> dormantChunkCache = new MapMaker().weakKeys().makeMap();
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private static File cfgFile;
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private static Configuration config;
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private static int playerTicketLength;
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private static int dormantChunkCacheSize;
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public static boolean asyncChunkLoading;
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public static final List<String> MOD_PROP_ORDER = new ArrayList<String>(2);
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private static Set<String> warnedMods = Sets.newHashSet();
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static
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{
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MOD_PROP_ORDER.add("maximumTicketCount");
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MOD_PROP_ORDER.add("maximumChunksPerTicket");
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}
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private static class ChunkEntry
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{
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public final Chunk chunk;
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public final NBTTagCompound nbt;
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public ChunkEntry(Chunk chunk)
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{
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this.chunk = chunk;
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this.nbt = new NBTTagCompound();
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}
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}
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public static Iterator<Chunk> getPersistentChunksIterableFor(final World world, Iterator<Chunk> chunkIterator)
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{
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final ImmutableSetMultimap<ChunkPos, Ticket> persistentChunksFor = getPersistentChunksFor(world);
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final ImmutableSet.Builder<Chunk> builder = ImmutableSet.builder();
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world.profiler.startSection("forcedChunkLoading");
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builder.addAll(persistentChunksFor.keys().stream().filter(Objects::nonNull).map(input -> world.getChunkFromChunkCoords(input.x, input.z)).iterator());
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world.profiler.endStartSection("regularChunkLoading");
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builder.addAll(chunkIterator);
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world.profiler.endSection();
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return builder.build().iterator();
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}
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/**
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* All mods requiring chunkloading need to implement this to handle the
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* re-registration of chunk tickets at world loading time
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*
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* @author cpw
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*
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*/
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public interface LoadingCallback
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{
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/**
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* Called back when tickets are loaded from the world to allow the
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* mod to re-register the chunks associated with those tickets. The list supplied
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* here is truncated to length prior to use. Tickets unwanted by the
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* mod must be disposed of manually unless the mod is an OrderedLoadingCallback instance
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* in which case, they will have been disposed of by the earlier callback.
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*
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* @param tickets The tickets to re-register. The list is immutable and cannot be manipulated directly. Copy it first.
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* @param world the world
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*/
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void ticketsLoaded(List<Ticket> tickets, World world);
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}
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/**
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* This is a special LoadingCallback that can be implemented as well as the
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* LoadingCallback to provide access to additional behaviour.
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* Specifically, this callback will fire prior to Forge dropping excess
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* tickets. Tickets in the returned list are presumed ordered and excess will
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* be truncated from the returned list.
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* This allows the mod to control not only if they actually <em>want</em> a ticket but
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* also their preferred ticket ordering.
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*
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* @author cpw
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*
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*/
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public interface OrderedLoadingCallback extends LoadingCallback
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{
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/**
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* Called back when tickets are loaded from the world to allow the
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* mod to decide if it wants the ticket still, and prioritise overflow
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* based on the ticket count.
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* WARNING: You cannot force chunks in this callback, it is strictly for allowing the mod
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* to be more selective in which tickets it wishes to preserve in an overflow situation
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*
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* @param tickets The tickets that you will want to select from. The list is immutable and cannot be manipulated directly. Copy it first.
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* @param world The world
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* @param maxTicketCount The maximum number of tickets that will be allowed.
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* @return A list of the tickets this mod wishes to continue using. This list will be truncated
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* to "maxTicketCount" size after the call returns and then offered to the other callback
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* method
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*/
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List<Ticket> ticketsLoaded(List<Ticket> tickets, World world, int maxTicketCount);
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}
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public interface PlayerOrderedLoadingCallback extends LoadingCallback
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{
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/**
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* Called back when tickets are loaded from the world to allow the
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* mod to decide if it wants the ticket still.
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* This is for player bound tickets rather than mod bound tickets. It is here so mods can
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* decide they want to dump all player tickets
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*
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* WARNING: You cannot force chunks in this callback, it is strictly for allowing the mod
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* to be more selective in which tickets it wishes to preserve
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*
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* @param tickets The tickets that you will want to select from. The list is immutable and cannot be manipulated directly. Copy it first.
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* @param world The world
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* @return A list of the tickets this mod wishes to use. This list will subsequently be offered
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* to the main callback for action
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*/
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ListMultimap<String, Ticket> playerTicketsLoaded(ListMultimap<String, Ticket> tickets, World world);
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}
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public enum Type
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{
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/**
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* For non-entity registrations
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*/
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NORMAL,
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/**
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* For entity registrations
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*/
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ENTITY
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}
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public static class Ticket
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{
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private String modId;
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private Type ticketType;
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private LinkedHashSet<ChunkPos> requestedChunks;
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private NBTTagCompound modData;
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public final World world;
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private int maxDepth;
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//private String entityClazz;
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private int entityChunkX;
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private int entityChunkZ;
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private Entity entity;
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private String player;
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Ticket(String modId, Type type, World world)
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{
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this.modId = modId;
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this.ticketType = type;
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this.world = world;
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this.maxDepth = getMaxChunkDepthFor(modId);
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this.requestedChunks = Sets.newLinkedHashSet();
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}
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Ticket(String modId, Type type, World world, String player)
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{
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this(modId, type, world);
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if (player != null)
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{
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this.player = player;
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}
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else
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{
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FMLLog.log.error("Attempt to create a player ticket without a valid player");
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throw new RuntimeException();
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}
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}
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/**
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* The chunk list depth can be manipulated up to the maximal grant allowed for the mod. This value is configurable. Once the maximum is reached,
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* the least recently forced chunk, by original registration time, is removed from the forced chunk list.
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*
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* @param depth The new depth to set
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*/
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public void setChunkListDepth(int depth)
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{
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if (depth > getMaxChunkDepthFor(modId) || (depth <= 0 && getMaxChunkDepthFor(modId) > 0))
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{
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FMLLog.log.warn("The mod {} tried to modify the chunk ticket depth to: {}, its allowed maximum is: {}", modId, depth, getMaxChunkDepthFor(modId));
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}
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else
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{
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this.maxDepth = depth;
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}
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}
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/**
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* Gets the current max depth for this ticket.
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* Should be the same as getMaxChunkListDepth()
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* unless setChunkListDepth has been called.
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*
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* @return Current max depth
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*/
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public int getChunkListDepth()
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{
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return maxDepth;
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}
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/**
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* Get the maximum chunk depth size
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*
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* @return The maximum chunk depth size
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*/
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public int getMaxChunkListDepth()
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{
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return getMaxChunkDepthFor(modId);
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}
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/**
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* Bind the entity to the ticket for {@link Type#ENTITY} type tickets. Other types will throw a runtime exception.
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*
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* @param entity The entity to bind
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*/
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public void bindEntity(Entity entity)
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{
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if (ticketType!=Type.ENTITY)
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{
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throw new RuntimeException("Cannot bind an entity to a non-entity ticket");
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}
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this.entity = entity;
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}
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/**
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* Retrieve the {@link NBTTagCompound} that stores mod specific data for the chunk ticket.
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* Example data to store would be a TileEntity or Block location. This is persisted with the ticket and
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* provided to the {@link LoadingCallback} for the mod. It is recommended to use this to recover
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* useful state information for the forced chunks.
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*
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* @return The custom compound tag for mods to store additional chunkloading data
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*/
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public NBTTagCompound getModData()
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{
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if (this.modData == null)
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{
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this.modData = new NBTTagCompound();
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}
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return modData;
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}
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/**
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* Get the entity associated with this {@link Type#ENTITY} type ticket
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* @return the entity
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*/
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public Entity getEntity()
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{
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return entity;
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}
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/**
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* Is this a player associated ticket rather than a mod associated ticket?
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*/
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public boolean isPlayerTicket()
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{
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return player != null;
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}
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/**
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* Get the player associated with this ticket
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*/
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public String getPlayerName()
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{
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return player;
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}
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/**
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* Get the associated mod id
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*/
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public String getModId()
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{
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return modId;
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}
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/**
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* Gets the ticket type
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*/
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public Type getType()
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{
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return ticketType;
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}
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/**
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* Gets a list of requested chunks for this ticket.
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*/
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public ImmutableSet<ChunkPos> getChunkList()
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{
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return ImmutableSet.copyOf(requestedChunks);
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}
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}
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public static class ForceChunkEvent extends net.minecraftforge.eventbus.api.Event
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{
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private final Ticket ticket;
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private final ChunkPos location;
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public ForceChunkEvent(Ticket ticket, ChunkPos location)
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{
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this.ticket = ticket;
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this.location = location;
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}
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public Ticket getTicket()
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{
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return ticket;
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}
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public ChunkPos getLocation()
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{
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return location;
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}
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}
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public static class UnforceChunkEvent extends net.minecraftforge.eventbus.api.Event
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{
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private final Ticket ticket;
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private final ChunkPos location;
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public UnforceChunkEvent(Ticket ticket, ChunkPos location)
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{
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this.ticket = ticket;
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this.location = location;
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}
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public Ticket getTicket()
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{
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return ticket;
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}
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public ChunkPos getLocation()
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{
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return location;
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}
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}
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/**
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* Allows dynamically loading world mods to test if there are chunk tickets in the world
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* Mods that add dynamically generated worlds (like Mystcraft) should call this method
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* to determine if the world should be loaded during server starting.
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*
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* @param chunkDir The chunk directory to test: should be equivalent to {@link WorldServer#getChunkSaveLocation()}
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* @return if there are tickets outstanding for this world or not
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*/
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public static boolean savedWorldHasForcedChunkTickets(File chunkDir)
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{
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File chunkLoaderData = new File(chunkDir, "forcedchunks.dat");
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if (chunkLoaderData.exists() && chunkLoaderData.isFile())
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{
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;
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try
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{
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NBTTagCompound forcedChunkData = CompressedStreamTools.read(chunkLoaderData);
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return forcedChunkData.getTagList("TicketList", Constants.NBT.TAG_COMPOUND).tagCount() > 0;
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}
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catch (IOException e)
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{
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}
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}
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return false;
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}
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static void loadWorld(World world)
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{
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ArrayListMultimap<String, Ticket> newTickets = ArrayListMultimap.create();
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tickets.put(world, newTickets);
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forcedChunks.put(world, ImmutableSetMultimap.of());
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if (!(world instanceof WorldServer))
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{
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return;
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}
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if (dormantChunkCacheSize != 0)
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{ // only put into cache if we're using dormant chunk caching
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dormantChunkCache.put(world, CacheBuilder.newBuilder().maximumSize(dormantChunkCacheSize).build());
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}
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WorldServer worldServer = (WorldServer) world;
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File chunkDir = worldServer.getChunkSaveLocation();
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File chunkLoaderData = new File(chunkDir, "forcedchunks.dat");
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if (chunkLoaderData.exists() && chunkLoaderData.isFile())
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{
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ArrayListMultimap<String, Ticket> loadedTickets = ArrayListMultimap.create();
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Map<String,ListMultimap<String,Ticket>> playerLoadedTickets = Maps.newHashMap();
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NBTTagCompound forcedChunkData;
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try
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{
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forcedChunkData = CompressedStreamTools.read(chunkLoaderData);
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}
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catch (IOException e)
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{
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FMLLog.log.warn("Unable to read forced chunk data at {} - it will be ignored", chunkLoaderData.getAbsolutePath(), e);
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return;
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}
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NBTTagList ticketList = forcedChunkData.getTagList("TicketList", Constants.NBT.TAG_COMPOUND);
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for (int i = 0; i < ticketList.tagCount(); i++)
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{
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NBTTagCompound ticketHolder = ticketList.getCompoundTagAt(i);
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String modId = ticketHolder.getString("Owner");
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boolean isPlayer = ForgeVersion.MOD_ID.equals(modId);
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if (!isPlayer && !Loader.isModLoaded(modId))
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{
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FMLLog.log.warn("Found chunkloading data for mod {} which is currently not available or active - it will be removed from the world save", modId);
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continue;
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}
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if (!isPlayer && !callbacks.containsKey(modId))
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{
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FMLLog.log.warn("The mod {} has registered persistent chunkloading data but doesn't seem to want to be called back with it - it will be removed from the world save", modId);
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continue;
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}
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NBTTagList tickets = ticketHolder.getTagList("Tickets", Constants.NBT.TAG_COMPOUND);
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for (int j = 0; j < tickets.tagCount(); j++)
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{
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NBTTagCompound ticket = tickets.getCompoundTagAt(j);
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modId = ticket.hasKey("ModId") ? ticket.getString("ModId") : modId;
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Type type = Type.values()[ticket.getByte("Type")];
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//byte ticketChunkDepth = ticket.getByte("ChunkListDepth");
|
|
Ticket tick = new Ticket(modId, type, world);
|
|
if (ticket.hasKey("ModData"))
|
|
{
|
|
tick.modData = ticket.getCompoundTag("ModData");
|
|
}
|
|
if (ticket.hasKey("Player"))
|
|
{
|
|
tick.player = ticket.getString("Player");
|
|
if (!playerLoadedTickets.containsKey(tick.modId))
|
|
{
|
|
playerLoadedTickets.put(modId, ArrayListMultimap.create());
|
|
}
|
|
playerLoadedTickets.get(tick.modId).put(tick.player, tick);
|
|
}
|
|
else
|
|
{
|
|
loadedTickets.put(modId, tick);
|
|
}
|
|
if (type == Type.ENTITY)
|
|
{
|
|
tick.entityChunkX = ticket.getInteger("chunkX");
|
|
tick.entityChunkZ = ticket.getInteger("chunkZ");
|
|
UUID uuid = new UUID(ticket.getLong("PersistentIDMSB"), ticket.getLong("PersistentIDLSB"));
|
|
// add the ticket to the "pending entity" list
|
|
pendingEntities.put(uuid, tick);
|
|
}
|
|
}
|
|
}
|
|
|
|
for (Ticket tick : ImmutableSet.copyOf(pendingEntities.values()))
|
|
{
|
|
if (tick.ticketType == Type.ENTITY && tick.entity == null)
|
|
{
|
|
// force the world to load the entity's chunk
|
|
// the load will come back through the loadEntity method and attach the entity
|
|
// to the ticket
|
|
world.getChunkFromChunkCoords(tick.entityChunkX, tick.entityChunkZ);
|
|
}
|
|
}
|
|
for (Ticket tick : ImmutableSet.copyOf(pendingEntities.values()))
|
|
{
|
|
if (tick.ticketType == Type.ENTITY && tick.entity == null)
|
|
{
|
|
FMLLog.log.warn("Failed to load persistent chunkloading entity {} from store.", pendingEntities.inverse().get(tick));
|
|
loadedTickets.remove(tick.modId, tick);
|
|
}
|
|
}
|
|
pendingEntities.clear();
|
|
// send callbacks
|
|
for (String modId : loadedTickets.keySet())
|
|
{
|
|
LoadingCallback loadingCallback = callbacks.get(modId);
|
|
if (loadingCallback == null)
|
|
{
|
|
continue;
|
|
}
|
|
int maxTicketLength = getMaxTicketLengthFor(modId);
|
|
List<Ticket> tickets = loadedTickets.get(modId);
|
|
if (loadingCallback instanceof OrderedLoadingCallback)
|
|
{
|
|
OrderedLoadingCallback orderedLoadingCallback = (OrderedLoadingCallback) loadingCallback;
|
|
tickets = orderedLoadingCallback.ticketsLoaded(ImmutableList.copyOf(tickets), world, maxTicketLength);
|
|
}
|
|
if (tickets.size() > maxTicketLength)
|
|
{
|
|
FMLLog.log.warn("The mod {} has too many open chunkloading tickets {}. Excess will be dropped", modId, tickets.size());
|
|
tickets.subList(maxTicketLength, tickets.size()).clear();
|
|
}
|
|
ForgeChunkManager.tickets.get(world).putAll(modId, tickets);
|
|
loadingCallback.ticketsLoaded(ImmutableList.copyOf(tickets), world);
|
|
}
|
|
for (String modId : playerLoadedTickets.keySet())
|
|
{
|
|
LoadingCallback loadingCallback = callbacks.get(modId);
|
|
if (loadingCallback == null)
|
|
{
|
|
continue;
|
|
}
|
|
ListMultimap<String,Ticket> tickets = playerLoadedTickets.get(modId);
|
|
if (loadingCallback instanceof PlayerOrderedLoadingCallback)
|
|
{
|
|
PlayerOrderedLoadingCallback orderedLoadingCallback = (PlayerOrderedLoadingCallback) loadingCallback;
|
|
tickets = orderedLoadingCallback.playerTicketsLoaded(ImmutableListMultimap.copyOf(tickets), world);
|
|
playerTickets.putAll(tickets);
|
|
}
|
|
ForgeChunkManager.tickets.get(world).putAll(ForgeVersion.MOD_ID, tickets.values());
|
|
loadingCallback.ticketsLoaded(ImmutableList.copyOf(tickets.values()), world);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void unloadWorld(World world)
|
|
{
|
|
// World save fires before this event so the chunk loading info will be done
|
|
if (!(world instanceof WorldServer))
|
|
{
|
|
return;
|
|
}
|
|
|
|
forcedChunks.remove(world);
|
|
if (dormantChunkCacheSize != 0) // only if in use
|
|
{
|
|
dormantChunkCache.remove(world);
|
|
}
|
|
// integrated server is shutting down
|
|
if (!ServerLifecycleHooks.getCurrentServer().isServerRunning())
|
|
{
|
|
playerTickets.clear();
|
|
tickets.clear();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Set a chunkloading callback for the supplied mod object
|
|
*
|
|
* @param mod The mod instance registering the callback
|
|
* @param callback The code to call back when forced chunks are loaded
|
|
*/
|
|
public static void setForcedChunkLoadingCallback(Object mod, LoadingCallback callback)
|
|
{
|
|
ModContainer container = getContainer(mod);
|
|
if (container == null)
|
|
{
|
|
FMLLog.log.warn("Unable to register a callback for an unknown mod {} ({} : {})", mod, mod.getClass().getName(), Integer.toHexString(System.identityHashCode(mod)));
|
|
return;
|
|
}
|
|
|
|
callbacks.put(container.getModId(), callback);
|
|
}
|
|
|
|
/**
|
|
* Discover the available tickets for the mod in the world
|
|
*
|
|
* @param mod The mod that will own the tickets
|
|
* @param world The world
|
|
* @return The count of tickets left for the mod in the supplied world
|
|
*/
|
|
public static int ticketCountAvailableFor(Object mod, World world)
|
|
{
|
|
ModContainer container = getContainer(mod);
|
|
if (container!=null)
|
|
{
|
|
String modId = container.getModId();
|
|
int allowedCount = getMaxTicketLengthFor(modId);
|
|
return allowedCount - tickets.get(world).get(modId).size();
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
private static ModContainer getContainer(Object mod)
|
|
{
|
|
ModContainer container = Loader.instance().getModObjectList().inverse().get(mod);
|
|
return container;
|
|
}
|
|
|
|
public static int getMaxTicketLengthFor(String modId)
|
|
{
|
|
int allowedCount = ticketConstraints.containsKey(modId) && overridesEnabled ? ticketConstraints.get(modId) : defaultMaxCount;
|
|
return allowedCount;
|
|
}
|
|
|
|
public static int getMaxChunkDepthFor(String modId)
|
|
{
|
|
int allowedCount = chunkConstraints.containsKey(modId) && overridesEnabled ? chunkConstraints.get(modId) : defaultMaxChunks;
|
|
return allowedCount;
|
|
}
|
|
|
|
public static int ticketCountAvailableFor(String username)
|
|
{
|
|
return playerTicketLength - playerTickets.get(username).size();
|
|
}
|
|
|
|
@Nullable
|
|
public static Ticket requestPlayerTicket(Object mod, String player, World world, Type type)
|
|
{
|
|
ModContainer mc = getContainer(mod);
|
|
if (mc == null)
|
|
{
|
|
FMLLog.log.error("Failed to locate the container for mod instance {} ({} : {})", mod, mod.getClass().getName(), Integer.toHexString(System.identityHashCode(mod)));
|
|
return null;
|
|
}
|
|
if (playerTickets.get(player).size()>playerTicketLength)
|
|
{
|
|
FMLLog.log.warn("Unable to assign further chunkloading tickets to player {} (on behalf of mod {})", player, mc.getModId());
|
|
return null;
|
|
}
|
|
Ticket ticket = new Ticket(mc.getModId(),type,world,player);
|
|
playerTickets.put(player, ticket);
|
|
tickets.get(world).put(ForgeVersion.MOD_ID, ticket);
|
|
return ticket;
|
|
}
|
|
/**
|
|
* Request a chunkloading ticket of the appropriate type for the supplied mod
|
|
*
|
|
* @param mod The mod requesting a ticket
|
|
* @param world The world in which it is requesting the ticket
|
|
* @param type The type of ticket
|
|
* @return A ticket with which to register chunks for loading, or null if no further tickets are available
|
|
*/
|
|
@Nullable
|
|
public static Ticket requestTicket(Object mod, World world, Type type)
|
|
{
|
|
ModContainer container = getContainer(mod);
|
|
if (container == null)
|
|
{
|
|
FMLLog.log.error("Failed to locate the container for mod instance {} ({} : {})", mod, mod.getClass().getName(), Integer.toHexString(System.identityHashCode(mod)));
|
|
return null;
|
|
}
|
|
String modId = container.getModId();
|
|
if (!callbacks.containsKey(modId))
|
|
{
|
|
FMLLog.log.fatal("The mod {} has attempted to request a ticket without a listener in place", modId);
|
|
throw new RuntimeException("Invalid ticket request");
|
|
}
|
|
|
|
int allowedCount = getMaxTicketLengthFor(modId);
|
|
|
|
if (tickets.get(world).get(modId).size() >= allowedCount)
|
|
{
|
|
if (!warnedMods.contains(modId))
|
|
{
|
|
FMLLog.log.info("The mod {} has attempted to allocate a chunkloading ticket beyond it's currently allocated maximum: {}", modId, allowedCount);
|
|
warnedMods.add(modId);
|
|
}
|
|
return null;
|
|
}
|
|
Ticket ticket = new Ticket(modId, type, world);
|
|
tickets.get(world).put(modId, ticket);
|
|
|
|
return ticket;
|
|
}
|
|
|
|
/**
|
|
* Release the ticket back to the system. This will also unforce any chunks held by the ticket so that they can be unloaded and/or stop ticking.
|
|
*
|
|
* @param ticket The ticket to release
|
|
*/
|
|
public static void releaseTicket(Ticket ticket)
|
|
{
|
|
if (ticket == null)
|
|
{
|
|
return;
|
|
}
|
|
if (ticket.isPlayerTicket() ? !playerTickets.containsValue(ticket) : !tickets.get(ticket.world).containsEntry(ticket.modId, ticket))
|
|
{
|
|
return;
|
|
}
|
|
if (ticket.requestedChunks!=null)
|
|
{
|
|
for (ChunkPos chunk : ImmutableSet.copyOf(ticket.requestedChunks))
|
|
{
|
|
unforceChunk(ticket, chunk);
|
|
}
|
|
}
|
|
if (ticket.isPlayerTicket())
|
|
{
|
|
playerTickets.remove(ticket.player, ticket);
|
|
tickets.get(ticket.world).remove(ForgeVersion.MOD_ID, ticket);
|
|
}
|
|
else
|
|
{
|
|
tickets.get(ticket.world).remove(ticket.modId, ticket);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Force the supplied chunk coordinate to be loaded by the supplied ticket. If the ticket's {@link Ticket#maxDepth} is exceeded, the least
|
|
* recently registered chunk is unforced and may be unloaded.
|
|
* It is safe to force the chunk several times for a ticket, it will not generate duplication or change the ordering.
|
|
*
|
|
* @param ticket The ticket registering the chunk
|
|
* @param chunk The chunk to force
|
|
*/
|
|
public static void forceChunk(Ticket ticket, ChunkPos chunk)
|
|
{
|
|
if (ticket == null || chunk == null)
|
|
{
|
|
return;
|
|
}
|
|
if (ticket.ticketType == Type.ENTITY && ticket.entity == null)
|
|
{
|
|
throw new RuntimeException("Attempted to use an entity ticket to force a chunk, without an entity");
|
|
}
|
|
if (ticket.isPlayerTicket() ? !playerTickets.containsValue(ticket) : !tickets.get(ticket.world).containsEntry(ticket.modId, ticket))
|
|
{
|
|
FMLLog.log.fatal("The mod {} attempted to force load a chunk with an invalid ticket. This is not permitted.", ticket.modId);
|
|
return;
|
|
}
|
|
ticket.requestedChunks.add(chunk);
|
|
MinecraftForge.EVENT_BUS.post(new ForceChunkEvent(ticket, chunk));
|
|
|
|
ImmutableSetMultimap<ChunkPos, Ticket> newMap = ImmutableSetMultimap.<ChunkPos,Ticket>builder().putAll(forcedChunks.get(ticket.world)).put(chunk, ticket).build();
|
|
forcedChunks.put(ticket.world, newMap);
|
|
if (ticket.maxDepth > 0 && ticket.requestedChunks.size() > ticket.maxDepth)
|
|
{
|
|
ChunkPos removed = ticket.requestedChunks.iterator().next();
|
|
unforceChunk(ticket,removed);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Reorganize the internal chunk list so that the chunk supplied is at the *end* of the list
|
|
* This helps if you wish to guarantee a certain "automatic unload ordering" for the chunks
|
|
* in the ticket list
|
|
*
|
|
* @param ticket The ticket holding the chunk list
|
|
* @param chunk The chunk you wish to push to the end (so that it would be unloaded last)
|
|
*/
|
|
public static void reorderChunk(Ticket ticket, ChunkPos chunk)
|
|
{
|
|
if (ticket == null || chunk == null || !ticket.requestedChunks.contains(chunk))
|
|
{
|
|
return;
|
|
}
|
|
ticket.requestedChunks.remove(chunk);
|
|
ticket.requestedChunks.add(chunk);
|
|
}
|
|
/**
|
|
* Unforce the supplied chunk, allowing it to be unloaded and stop ticking.
|
|
*
|
|
* @param ticket The ticket holding the chunk
|
|
* @param chunk The chunk to unforce
|
|
*/
|
|
public static void unforceChunk(Ticket ticket, ChunkPos chunk)
|
|
{
|
|
if (ticket == null || chunk == null)
|
|
{
|
|
return;
|
|
}
|
|
ticket.requestedChunks.remove(chunk);
|
|
MinecraftForge.EVENT_BUS.post(new UnforceChunkEvent(ticket, chunk));
|
|
LinkedHashMultimap<ChunkPos, Ticket> copy = LinkedHashMultimap.create(forcedChunks.get(ticket.world));
|
|
copy.remove(chunk, ticket);
|
|
ImmutableSetMultimap<ChunkPos, Ticket> newMap = ImmutableSetMultimap.copyOf(copy);
|
|
forcedChunks.put(ticket.world,newMap);
|
|
}
|
|
|
|
static void loadConfiguration()
|
|
{
|
|
ticketConstraints.clear();
|
|
chunkConstraints.clear();
|
|
for (String mod : config.getCategoryNames())
|
|
{
|
|
if (mod.equals(ForgeVersion.MOD_ID) || mod.equals("defaults"))
|
|
{
|
|
continue;
|
|
}
|
|
Property modTC = config.get(mod, "maximumTicketCount", 200);
|
|
Property modCPT = config.get(mod, "maximumChunksPerTicket", 25);
|
|
ticketConstraints.put(mod, modTC.getInt(200));
|
|
chunkConstraints.put(mod, modCPT.getInt(25));
|
|
}
|
|
if (config.hasChanged())
|
|
{
|
|
config.save();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* The list of persistent chunks in the world. This set is immutable.
|
|
* @param world
|
|
* @return the list of persistent chunks in the world
|
|
*/
|
|
public static ImmutableSetMultimap<ChunkPos, Ticket> getPersistentChunksFor(World world)
|
|
{
|
|
return forcedChunks.containsKey(world) ? forcedChunks.get(world) : ImmutableSetMultimap.of();
|
|
}
|
|
|
|
static void saveWorld(World world)
|
|
{
|
|
// only persist persistent worlds
|
|
if (!(world instanceof WorldServer))
|
|
{
|
|
return;
|
|
}
|
|
WorldServer worldServer = (WorldServer) world;
|
|
File chunkDir = worldServer.getChunkSaveLocation();
|
|
File chunkLoaderData = new File(chunkDir, "forcedchunks.dat");
|
|
|
|
NBTTagCompound forcedChunkData = new NBTTagCompound();
|
|
NBTTagList ticketList = new NBTTagList();
|
|
forcedChunkData.setTag("TicketList", ticketList);
|
|
|
|
Multimap<String, Ticket> ticketSet = tickets.get(worldServer);
|
|
if (ticketSet == null) return;
|
|
for (String modId : ticketSet.keySet())
|
|
{
|
|
NBTTagCompound ticketHolder = new NBTTagCompound();
|
|
ticketList.appendTag(ticketHolder);
|
|
|
|
ticketHolder.setString("Owner", modId);
|
|
NBTTagList tickets = new NBTTagList();
|
|
ticketHolder.setTag("Tickets", tickets);
|
|
|
|
for (Ticket tick : ticketSet.get(modId))
|
|
{
|
|
NBTTagCompound ticket = new NBTTagCompound();
|
|
ticket.setByte("Type", (byte) tick.ticketType.ordinal());
|
|
ticket.setByte("ChunkListDepth", (byte) tick.maxDepth);
|
|
if (tick.isPlayerTicket())
|
|
{
|
|
ticket.setString("ModId", tick.modId);
|
|
ticket.setString("Player", tick.player);
|
|
}
|
|
if (tick.modData != null)
|
|
{
|
|
ticket.setTag("ModData", tick.modData);
|
|
}
|
|
if (tick.ticketType == Type.ENTITY && tick.entity != null && tick.entity.writeToNBTOptional(new NBTTagCompound()))
|
|
{
|
|
ticket.setInteger("chunkX", MathHelper.floor(tick.entity.chunkCoordX));
|
|
ticket.setInteger("chunkZ", MathHelper.floor(tick.entity.chunkCoordZ));
|
|
ticket.setLong("PersistentIDMSB", tick.entity.getPersistentID().getMostSignificantBits());
|
|
ticket.setLong("PersistentIDLSB", tick.entity.getPersistentID().getLeastSignificantBits());
|
|
tickets.appendTag(ticket);
|
|
}
|
|
else if (tick.ticketType != Type.ENTITY)
|
|
{
|
|
tickets.appendTag(ticket);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Write the actual file on the IO thread rather than blocking the server thread
|
|
ThreadedFileIOBase.getThreadedIOInstance().queueIO(() -> {
|
|
try
|
|
{
|
|
CompressedStreamTools.write(forcedChunkData, chunkLoaderData);
|
|
}
|
|
catch (IOException e)
|
|
{
|
|
FMLLog.log.warn("Unable to write forced chunk data to {} - chunkloading won't work", chunkLoaderData.getAbsolutePath(), e);
|
|
}
|
|
return false;
|
|
});
|
|
}
|
|
|
|
static void loadEntity(Entity entity)
|
|
{
|
|
UUID id = entity.getPersistentID();
|
|
Ticket tick = pendingEntities.get(id);
|
|
if (tick != null)
|
|
{
|
|
tick.bindEntity(entity);
|
|
pendingEntities.remove(id);
|
|
}
|
|
}
|
|
|
|
public static void putDormantChunk(long coords, Chunk chunk)
|
|
{
|
|
if (dormantChunkCacheSize == 0) return; // Skip if we're not dormant caching chunks
|
|
Cache<Long, ChunkEntry> cache = dormantChunkCache.get(chunk.getWorld());
|
|
if (cache != null)
|
|
{
|
|
cache.put(coords, new ChunkEntry(chunk));
|
|
}
|
|
}
|
|
|
|
public static void storeChunkNBT(Chunk chunk, NBTTagCompound nbt)
|
|
{
|
|
if (dormantChunkCacheSize == 0) return;
|
|
|
|
Cache<Long, ChunkEntry> cache = dormantChunkCache.get(chunk.getWorld());
|
|
if (cache == null) return;
|
|
|
|
ChunkEntry entry = cache.getIfPresent(ChunkPos.asLong(chunk.x, chunk.z));
|
|
if (entry != null)
|
|
{
|
|
entry.nbt.setTag("Entities", nbt.getTagList("Entities", Constants.NBT.TAG_COMPOUND));
|
|
entry.nbt.setTag("TileEntities", nbt.getTagList("TileEntities", Constants.NBT.TAG_COMPOUND));
|
|
|
|
ClassInheritanceMultiMap<Entity>[] entityLists = chunk.getEntityLists();
|
|
for (int i = 0; i < entityLists.length; ++i)
|
|
{
|
|
entityLists[i] = new ClassInheritanceMultiMap<>(Entity.class);
|
|
}
|
|
chunk.getTileEntityMap().clear();
|
|
}
|
|
}
|
|
|
|
@Nullable
|
|
public static Chunk fetchDormantChunk(long coords, World world)
|
|
{
|
|
if (dormantChunkCacheSize == 0) return null; // Don't bother with maps at all if its never gonna get a response
|
|
|
|
Cache<Long, ChunkEntry> cache = dormantChunkCache.get(world);
|
|
if (cache == null) return null;
|
|
|
|
ChunkEntry entry = cache.getIfPresent(coords);
|
|
if (entry == null) return null;
|
|
|
|
loadChunkEntities(entry.chunk, entry.nbt, world);
|
|
|
|
cache.invalidate(coords);
|
|
return entry.chunk;
|
|
}
|
|
|
|
private static void loadChunkEntities(Chunk chunk, NBTTagCompound nbt, World world)
|
|
{
|
|
NBTTagList entities = nbt.getTagList("Entities", Constants.NBT.TAG_COMPOUND);
|
|
for (int i = 0; i < entities.tagCount(); ++i)
|
|
{
|
|
AnvilChunkLoader.readChunkEntity(entities.getCompoundTagAt(i), world, chunk);
|
|
chunk.setHasEntities(true);
|
|
}
|
|
|
|
NBTTagList tileEntities = nbt.getTagList("TileEntities", Constants.NBT.TAG_COMPOUND);
|
|
for (int i = 0; i < tileEntities.tagCount(); ++i)
|
|
{
|
|
TileEntity tileEntity = TileEntity.create(world, tileEntities.getCompoundTagAt(i));
|
|
if (tileEntity != null) chunk.addTileEntity(tileEntity);
|
|
}
|
|
}
|
|
|
|
static void captureConfig(File configDir)
|
|
{
|
|
cfgFile = new File(configDir,"forgeChunkLoading.cfg");
|
|
config = new Configuration(cfgFile, true);
|
|
try
|
|
{
|
|
config.load();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
File dest = new File(cfgFile.getParentFile(),"forgeChunkLoading.cfg.bak");
|
|
if (dest.exists())
|
|
{
|
|
dest.delete();
|
|
}
|
|
cfgFile.renameTo(dest);
|
|
FMLLog.log.error("A critical error occurred reading the forgeChunkLoading.cfg file, defaults will be used - the invalid file is backed up at forgeChunkLoading.cfg.bak", e);
|
|
}
|
|
syncConfigDefaults();
|
|
}
|
|
|
|
/**
|
|
* Synchronizes the local fields with the values in the Configuration object.
|
|
*/
|
|
public static void syncConfigDefaults()
|
|
{
|
|
// By adding a property order list we are defining the order that the properties will appear both in the config file and on the GUIs.
|
|
// Property order lists are defined per-ConfigCategory.
|
|
List<String> propOrder = new ArrayList<String>();
|
|
|
|
config.setCategoryComment("defaults", "Default configuration for forge chunk loading control")
|
|
.setCategoryRequiresWorldRestart("defaults", true);
|
|
|
|
Property temp = config.get("defaults", "enabled", true);
|
|
temp.setComment("Are mod overrides enabled?");
|
|
temp.setLanguageKey("forge.configgui.enableModOverrides");
|
|
overridesEnabled = temp.getBoolean(true);
|
|
propOrder.add("enabled");
|
|
|
|
temp = config.get("defaults", "maximumChunksPerTicket", 25);
|
|
temp.setComment("The default maximum number of chunks a mod can force, per ticket, \n" +
|
|
"for a mod without an override. This is the maximum number of chunks a single ticket can force.");
|
|
temp.setLanguageKey("forge.configgui.maximumChunksPerTicket");
|
|
temp.setMinValue(0);
|
|
defaultMaxChunks = temp.getInt(25);
|
|
propOrder.add("maximumChunksPerTicket");
|
|
|
|
temp = config.get("defaults", "maximumTicketCount", 200);
|
|
temp.setComment("The default maximum ticket count for a mod which does not have an override\n" +
|
|
"in this file. This is the number of chunk loading requests a mod is allowed to make.");
|
|
temp.setLanguageKey("forge.configgui.maximumTicketCount");
|
|
temp.setMinValue(0);
|
|
defaultMaxCount = temp.getInt(200);
|
|
propOrder.add("maximumTicketCount");
|
|
|
|
temp = config.get("defaults", "playerTicketCount", 500);
|
|
temp.setComment("The number of tickets a player can be assigned instead of a mod. This is shared across all mods and it is up to the mods to use it.");
|
|
temp.setLanguageKey("forge.configgui.playerTicketCount");
|
|
temp.setMinValue(0);
|
|
playerTicketLength = temp.getInt(500);
|
|
propOrder.add("playerTicketCount");
|
|
|
|
temp = config.get("defaults", "dormantChunkCacheSize", 0);
|
|
temp.setComment("Unloaded chunks can first be kept in a dormant cache for quicker\n" +
|
|
"loading times. Specify the size (in chunks) of that cache here");
|
|
temp.setLanguageKey("forge.configgui.dormantChunkCacheSize");
|
|
temp.setMinValue(0);
|
|
dormantChunkCacheSize = temp.getInt(0);
|
|
propOrder.add("dormantChunkCacheSize");
|
|
FMLLog.log.info("Configured a dormant chunk cache size of {}", temp.getInt(0));
|
|
|
|
temp = config.get("defaults", "asyncChunkLoading", true);
|
|
temp.setComment("Load chunks asynchronously for players, reducing load on the server thread.\n" +
|
|
"Can be disabled to help troubleshoot chunk loading issues.");
|
|
temp.setLanguageKey("forge.configgui.asyncChunkLoading");
|
|
asyncChunkLoading = temp.getBoolean(true);
|
|
propOrder.add("asyncChunkLoading");
|
|
|
|
config.setCategoryPropertyOrder("defaults", propOrder);
|
|
|
|
config.addCustomCategoryComment(ForgeVersion.MOD_ID, "Sample mod specific control section.\n" +
|
|
"Copy this section and rename the with the modid for the mod you wish to override.\n" +
|
|
"A value of zero in either entry effectively disables any chunkloading capabilities\n" +
|
|
"for that mod");
|
|
|
|
temp = config.get(ForgeVersion.MOD_ID, "maximumTicketCount", 200);
|
|
temp.setComment("Maximum ticket count for the mod. Zero disables chunkloading capabilities.");
|
|
temp = config.get(ForgeVersion.MOD_ID, "maximumChunksPerTicket", 25);
|
|
temp.setComment("Maximum chunks per ticket for the mod.");
|
|
for (String mod : config.getCategoryNames())
|
|
{
|
|
if (mod.equals(ForgeVersion.MOD_ID) || mod.equals("defaults"))
|
|
{
|
|
continue;
|
|
}
|
|
config.get(mod, "maximumTicketCount", 200).setLanguageKey("forge.configgui.maximumTicketCount").setMinValue(0);
|
|
config.get(mod, "maximumChunksPerTicket", 25).setLanguageKey("forge.configgui.maximumChunksPerTicket").setMinValue(0);
|
|
}
|
|
|
|
if (config.hasChanged())
|
|
{
|
|
config.save();
|
|
}
|
|
}
|
|
|
|
public static Configuration getConfig()
|
|
{
|
|
return config;
|
|
}
|
|
|
|
public static ConfigCategory getDefaultsCategory()
|
|
{
|
|
return config.getCategory("defaults");
|
|
}
|
|
|
|
public static List<ConfigCategory> getModCategories()
|
|
{
|
|
List<ConfigCategory> list = new ArrayList<ConfigCategory>();
|
|
for (String mod : config.getCategoryNames())
|
|
{
|
|
if (mod.equals(ForgeVersion.MOD_ID) || mod.equals("defaults"))
|
|
{
|
|
continue;
|
|
}
|
|
list.add(config.getCategory(mod));
|
|
}
|
|
return list;
|
|
}
|
|
|
|
@Nullable
|
|
public static ConfigCategory getConfigFor(Object mod)
|
|
{
|
|
ModContainer container = getContainer(mod);
|
|
if (container != null)
|
|
{
|
|
return config.getCategory(container.getModId());
|
|
}
|
|
|
|
return null;
|
|
}
|
|
|
|
public static void addConfigProperty(Object mod, String propertyName, String value, Property.Type type)
|
|
{
|
|
ModContainer container = getContainer(mod);
|
|
if (container != null)
|
|
{
|
|
ConfigCategory cat = config.getCategory(container.getModId());
|
|
Property prop = new Property(propertyName, value, type).setLanguageKey("forge.configgui." + propertyName);
|
|
if (type == Property.Type.INTEGER)
|
|
{
|
|
prop.setMinValue(0);
|
|
}
|
|
cat.put(propertyName, prop);
|
|
}
|
|
}
|
|
}
|