minecraft-src/net/minecraft/core/MappedRegistry.java
2025-07-04 02:00:41 +03:00

472 lines
15 KiB
Java

package net.minecraft.core;
import com.google.common.collect.ImmutableMap;
import com.google.common.collect.Iterators;
import com.google.common.collect.Maps;
import com.google.common.collect.ImmutableMap.Builder;
import com.mojang.serialization.Lifecycle;
import it.unimi.dsi.fastutil.objects.ObjectArrayList;
import it.unimi.dsi.fastutil.objects.ObjectList;
import it.unimi.dsi.fastutil.objects.Reference2IntMap;
import it.unimi.dsi.fastutil.objects.Reference2IntOpenHashMap;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.IdentityHashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
import java.util.Map.Entry;
import java.util.function.BiConsumer;
import java.util.stream.Stream;
import net.minecraft.Util;
import net.minecraft.core.HolderLookup.RegistryLookup.Delegate;
import net.minecraft.core.MappedRegistry.TagSet.1;
import net.minecraft.core.MappedRegistry.TagSet.2;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.tags.TagKey;
import net.minecraft.tags.TagLoader;
import net.minecraft.util.RandomSource;
import org.jetbrains.annotations.Nullable;
public class MappedRegistry<T> implements WritableRegistry<T> {
private final ResourceKey<? extends Registry<T>> key;
private final ObjectList<Holder.Reference<T>> byId = new ObjectArrayList<>(256);
private final Reference2IntMap<T> toId = Util.make(
new Reference2IntOpenHashMap<>(), reference2IntOpenHashMap -> reference2IntOpenHashMap.defaultReturnValue(-1)
);
private final Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap();
private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap();
private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap();
private final Map<ResourceKey<T>, RegistrationInfo> registrationInfos = new IdentityHashMap();
private Lifecycle registryLifecycle;
private final Map<TagKey<T>, HolderSet.Named<T>> frozenTags = new IdentityHashMap();
MappedRegistry.TagSet<T> allTags = MappedRegistry.TagSet.unbound();
private boolean frozen;
@Nullable
private Map<T, Holder.Reference<T>> unregisteredIntrusiveHolders;
@Override
public Stream<HolderSet.Named<T>> listTags() {
return this.getTags();
}
public MappedRegistry(ResourceKey<? extends Registry<T>> key, Lifecycle registryLifecycle) {
this(key, registryLifecycle, false);
}
public MappedRegistry(ResourceKey<? extends Registry<T>> key, Lifecycle registryLifecycle, boolean hasIntrusiveHolders) {
this.key = key;
this.registryLifecycle = registryLifecycle;
if (hasIntrusiveHolders) {
this.unregisteredIntrusiveHolders = new IdentityHashMap();
}
}
@Override
public ResourceKey<? extends Registry<T>> key() {
return this.key;
}
public String toString() {
return "Registry[" + this.key + " (" + this.registryLifecycle + ")]";
}
private void validateWrite() {
if (this.frozen) {
throw new IllegalStateException("Registry is already frozen");
}
}
private void validateWrite(ResourceKey<T> key) {
if (this.frozen) {
throw new IllegalStateException("Registry is already frozen (trying to add key " + key + ")");
}
}
@Override
public Holder.Reference<T> register(ResourceKey<T> key, T value, RegistrationInfo registrationInfo) {
this.validateWrite(key);
Objects.requireNonNull(key);
Objects.requireNonNull(value);
if (this.byLocation.containsKey(key.location())) {
throw (IllegalStateException)Util.pauseInIde((T)(new IllegalStateException("Adding duplicate key '" + key + "' to registry")));
} else if (this.byValue.containsKey(value)) {
throw (IllegalStateException)Util.pauseInIde((T)(new IllegalStateException("Adding duplicate value '" + value + "' to registry")));
} else {
Holder.Reference<T> reference;
if (this.unregisteredIntrusiveHolders != null) {
reference = (Holder.Reference<T>)this.unregisteredIntrusiveHolders.remove(value);
if (reference == null) {
throw new AssertionError("Missing intrusive holder for " + key + ":" + value);
}
reference.bindKey(key);
} else {
reference = (Holder.Reference<T>)this.byKey.computeIfAbsent(key, resourceKey -> Holder.Reference.createStandAlone(this, resourceKey));
}
this.byKey.put(key, reference);
this.byLocation.put(key.location(), reference);
this.byValue.put(value, reference);
int i = this.byId.size();
this.byId.add(reference);
this.toId.put(value, i);
this.registrationInfos.put(key, registrationInfo);
this.registryLifecycle = this.registryLifecycle.add(registrationInfo.lifecycle());
return reference;
}
}
@Nullable
@Override
public ResourceLocation getKey(T value) {
Holder.Reference<T> reference = (Holder.Reference<T>)this.byValue.get(value);
return reference != null ? reference.key().location() : null;
}
@Override
public Optional<ResourceKey<T>> getResourceKey(T value) {
return Optional.ofNullable((Holder.Reference)this.byValue.get(value)).map(Holder.Reference::key);
}
@Override
public int getId(@Nullable T value) {
return this.toId.getInt(value);
}
@Nullable
@Override
public T getValue(@Nullable ResourceKey<T> resourceKey) {
return getValueFromNullable((Holder.Reference<T>)this.byKey.get(resourceKey));
}
@Nullable
@Override
public T byId(int id) {
return (T)(id >= 0 && id < this.byId.size() ? ((Holder.Reference)this.byId.get(id)).value() : null);
}
@Override
public Optional<Holder.Reference<T>> get(int i) {
return i >= 0 && i < this.byId.size() ? Optional.ofNullable((Holder.Reference)this.byId.get(i)) : Optional.empty();
}
@Override
public Optional<Holder.Reference<T>> get(ResourceLocation resourceLocation) {
return Optional.ofNullable((Holder.Reference)this.byLocation.get(resourceLocation));
}
@Override
public Optional<Holder.Reference<T>> get(ResourceKey<T> resourceKey) {
return Optional.ofNullable((Holder.Reference)this.byKey.get(resourceKey));
}
@Override
public Optional<Holder.Reference<T>> getAny() {
return this.byId.isEmpty() ? Optional.empty() : Optional.of((Holder.Reference)this.byId.getFirst());
}
@Override
public Holder<T> wrapAsHolder(T value) {
Holder.Reference<T> reference = (Holder.Reference<T>)this.byValue.get(value);
return (Holder<T>)(reference != null ? reference : Holder.direct(value));
}
Holder.Reference<T> getOrCreateHolderOrThrow(ResourceKey<T> key) {
return (Holder.Reference<T>)this.byKey.computeIfAbsent(key, resourceKey -> {
if (this.unregisteredIntrusiveHolders != null) {
throw new IllegalStateException("This registry can't create new holders without value");
} else {
this.validateWrite(resourceKey);
return Holder.Reference.createStandAlone(this, resourceKey);
}
});
}
@Override
public int size() {
return this.byKey.size();
}
@Override
public Optional<RegistrationInfo> registrationInfo(ResourceKey<T> key) {
return Optional.ofNullable((RegistrationInfo)this.registrationInfos.get(key));
}
@Override
public Lifecycle registryLifecycle() {
return this.registryLifecycle;
}
public Iterator<T> iterator() {
return Iterators.transform(this.byId.iterator(), Holder::value);
}
@Nullable
@Override
public T getValue(@Nullable ResourceLocation resourceLocation) {
Holder.Reference<T> reference = (Holder.Reference<T>)this.byLocation.get(resourceLocation);
return getValueFromNullable(reference);
}
@Nullable
private static <T> T getValueFromNullable(@Nullable Holder.Reference<T> holder) {
return holder != null ? holder.value() : null;
}
@Override
public Set<ResourceLocation> keySet() {
return Collections.unmodifiableSet(this.byLocation.keySet());
}
@Override
public Set<ResourceKey<T>> registryKeySet() {
return Collections.unmodifiableSet(this.byKey.keySet());
}
@Override
public Set<Entry<ResourceKey<T>, T>> entrySet() {
return Collections.unmodifiableSet(Maps.transformValues(this.byKey, Holder::value).entrySet());
}
@Override
public Stream<Holder.Reference<T>> listElements() {
return this.byId.stream();
}
@Override
public Stream<HolderSet.Named<T>> getTags() {
return this.allTags.getTags();
}
HolderSet.Named<T> getOrCreateTagForRegistration(TagKey<T> tagKey) {
return (HolderSet.Named<T>)this.frozenTags.computeIfAbsent(tagKey, this::createTag);
}
private HolderSet.Named<T> createTag(TagKey<T> key) {
return new HolderSet.Named<>(this, key);
}
@Override
public boolean isEmpty() {
return this.byKey.isEmpty();
}
@Override
public Optional<Holder.Reference<T>> getRandom(RandomSource random) {
return Util.getRandomSafe(this.byId, random);
}
@Override
public boolean containsKey(ResourceLocation name) {
return this.byLocation.containsKey(name);
}
@Override
public boolean containsKey(ResourceKey<T> key) {
return this.byKey.containsKey(key);
}
@Override
public Registry<T> freeze() {
if (this.frozen) {
return this;
} else {
this.frozen = true;
this.byValue.forEach((object, reference) -> reference.bindValue(object));
List<ResourceLocation> list = this.byKey
.entrySet()
.stream()
.filter(entry -> !((Holder.Reference)entry.getValue()).isBound())
.map(entry -> ((ResourceKey)entry.getKey()).location())
.sorted()
.toList();
if (!list.isEmpty()) {
throw new IllegalStateException("Unbound values in registry " + this.key() + ": " + list);
} else {
if (this.unregisteredIntrusiveHolders != null) {
if (!this.unregisteredIntrusiveHolders.isEmpty()) {
throw new IllegalStateException("Some intrusive holders were not registered: " + this.unregisteredIntrusiveHolders.values());
}
this.unregisteredIntrusiveHolders = null;
}
if (this.allTags.isBound()) {
throw new IllegalStateException("Tags already present before freezing");
} else {
List<ResourceLocation> list2 = this.frozenTags
.entrySet()
.stream()
.filter(entry -> !((HolderSet.Named)entry.getValue()).isBound())
.map(entry -> ((TagKey)entry.getKey()).location())
.sorted()
.toList();
if (!list2.isEmpty()) {
throw new IllegalStateException("Unbound tags in registry " + this.key() + ": " + list2);
} else {
this.allTags = MappedRegistry.TagSet.fromMap(this.frozenTags);
this.refreshTagsInHolders();
return this;
}
}
}
}
}
@Override
public Holder.Reference<T> createIntrusiveHolder(T value) {
if (this.unregisteredIntrusiveHolders == null) {
throw new IllegalStateException("This registry can't create intrusive holders");
} else {
this.validateWrite();
return (Holder.Reference<T>)this.unregisteredIntrusiveHolders.computeIfAbsent(value, object -> Holder.Reference.createIntrusive(this, (T)object));
}
}
@Override
public Optional<HolderSet.Named<T>> get(TagKey<T> tagKey) {
return this.allTags.get(tagKey);
}
private Holder.Reference<T> validateAndUnwrapTagElement(TagKey<T> tagKey, Holder<T> holder) {
if (!holder.canSerializeIn(this)) {
throw new IllegalStateException("Can't create named set " + tagKey + " containing value " + holder + " from outside registry " + this);
} else if (holder instanceof Holder.Reference<T> reference) {
return reference;
} else {
throw new IllegalStateException("Found direct holder " + holder + " value in tag " + tagKey);
}
}
@Override
public void bindTag(TagKey<T> tagKey, List<Holder<T>> list) {
this.validateWrite();
this.getOrCreateTagForRegistration(tagKey).bind(list);
}
void refreshTagsInHolders() {
Map<Holder.Reference<T>, List<TagKey<T>>> map = new IdentityHashMap();
this.byKey.values().forEach(reference -> map.put(reference, new ArrayList()));
this.allTags.forEach((tagKey, named) -> {
for (Holder<T> holder : named) {
Holder.Reference<T> reference = this.validateAndUnwrapTagElement(tagKey, holder);
((List)map.get(reference)).add(tagKey);
}
});
map.forEach(Holder.Reference::bindTags);
}
public void bindAllTagsToEmpty() {
this.validateWrite();
this.frozenTags.values().forEach(named -> named.bind(List.of()));
}
@Override
public HolderGetter<T> createRegistrationLookup() {
this.validateWrite();
return new HolderGetter<T>() {
@Override
public Optional<Holder.Reference<T>> get(ResourceKey<T> resourceKey) {
return Optional.of(this.getOrThrow(resourceKey));
}
@Override
public Holder.Reference<T> getOrThrow(ResourceKey<T> resourceKey) {
return MappedRegistry.this.getOrCreateHolderOrThrow(resourceKey);
}
@Override
public Optional<HolderSet.Named<T>> get(TagKey<T> tagKey) {
return Optional.of(this.getOrThrow(tagKey));
}
@Override
public HolderSet.Named<T> getOrThrow(TagKey<T> tagKey) {
return MappedRegistry.this.getOrCreateTagForRegistration(tagKey);
}
};
}
@Override
public Registry.PendingTags<T> prepareTagReload(TagLoader.LoadResult<T> loadResult) {
if (!this.frozen) {
throw new IllegalStateException("Invalid method used for tag loading");
} else {
Builder<TagKey<T>, HolderSet.Named<T>> builder = ImmutableMap.builder();
final Map<TagKey<T>, List<Holder<T>>> map = new HashMap();
loadResult.tags().forEach((tagKey, list) -> {
HolderSet.Named<T> named = (HolderSet.Named<T>)this.frozenTags.get(tagKey);
if (named == null) {
named = this.createTag(tagKey);
}
builder.put(tagKey, named);
map.put(tagKey, List.copyOf(list));
});
final ImmutableMap<TagKey<T>, HolderSet.Named<T>> immutableMap = builder.build();
final HolderLookup.RegistryLookup<T> registryLookup = new Delegate<T>() {
public HolderLookup.RegistryLookup<T> parent() {
return MappedRegistry.this;
}
public Optional<HolderSet.Named<T>> get(TagKey<T> tagKey) {
return Optional.ofNullable(immutableMap.get(tagKey));
}
public Stream<HolderSet.Named<T>> listTags() {
return immutableMap.values().stream();
}
};
return new Registry.PendingTags<T>() {
@Override
public ResourceKey<? extends Registry<? extends T>> key() {
return MappedRegistry.this.key();
}
@Override
public int size() {
return map.size();
}
@Override
public HolderLookup.RegistryLookup<T> lookup() {
return registryLookup;
}
@Override
public void apply() {
immutableMap.forEach((tagKey, named) -> {
List<Holder<T>> list = (List<Holder<T>>)map.getOrDefault(tagKey, List.of());
named.bind(list);
});
MappedRegistry.this.allTags = MappedRegistry.TagSet.fromMap(immutableMap);
MappedRegistry.this.refreshTagsInHolders();
}
};
}
}
interface TagSet<T> {
static <T> MappedRegistry.TagSet<T> unbound() {
return new 1();
}
static <T> MappedRegistry.TagSet<T> fromMap(Map<TagKey<T>, HolderSet.Named<T>> map) {
return new 2(map);
}
boolean isBound();
Optional<HolderSet.Named<T>> get(TagKey<T> tagKey);
void forEach(BiConsumer<? super TagKey<T>, ? super HolderSet.Named<T>> biConsumer);
Stream<HolderSet.Named<T>> getTags();
}
}