minecraft-src/net/minecraft/commands/arguments/ResourceKeyArgument.java
2025-07-04 01:41:11 +03:00

135 lines
6.3 KiB
Java

package net.minecraft.commands.arguments;
import com.google.gson.JsonObject;
import com.mojang.brigadier.StringReader;
import com.mojang.brigadier.arguments.ArgumentType;
import com.mojang.brigadier.context.CommandContext;
import com.mojang.brigadier.exceptions.CommandSyntaxException;
import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
import com.mojang.brigadier.suggestion.Suggestions;
import com.mojang.brigadier.suggestion.SuggestionsBuilder;
import java.util.Arrays;
import java.util.Collection;
import java.util.Optional;
import java.util.concurrent.CompletableFuture;
import net.minecraft.commands.CommandBuildContext;
import net.minecraft.commands.CommandSourceStack;
import net.minecraft.commands.SharedSuggestionProvider;
import net.minecraft.commands.synchronization.ArgumentTypeInfo;
import net.minecraft.core.Holder;
import net.minecraft.core.Registry;
import net.minecraft.core.registries.Registries;
import net.minecraft.network.FriendlyByteBuf;
import net.minecraft.network.chat.Component;
import net.minecraft.resources.ResourceKey;
import net.minecraft.resources.ResourceLocation;
import net.minecraft.world.level.levelgen.feature.ConfiguredFeature;
import net.minecraft.world.level.levelgen.structure.Structure;
import net.minecraft.world.level.levelgen.structure.pools.StructureTemplatePool;
public class ResourceKeyArgument<T> implements ArgumentType<ResourceKey<T>> {
private static final Collection<String> EXAMPLES = Arrays.asList("foo", "foo:bar", "012");
private static final DynamicCommandExceptionType ERROR_INVALID_FEATURE = new DynamicCommandExceptionType(
object -> Component.translatableEscape("commands.place.feature.invalid", object)
);
private static final DynamicCommandExceptionType ERROR_INVALID_STRUCTURE = new DynamicCommandExceptionType(
object -> Component.translatableEscape("commands.place.structure.invalid", object)
);
private static final DynamicCommandExceptionType ERROR_INVALID_TEMPLATE_POOL = new DynamicCommandExceptionType(
object -> Component.translatableEscape("commands.place.jigsaw.invalid", object)
);
final ResourceKey<? extends Registry<T>> registryKey;
public ResourceKeyArgument(ResourceKey<? extends Registry<T>> registryKey) {
this.registryKey = registryKey;
}
public static <T> ResourceKeyArgument<T> key(ResourceKey<? extends Registry<T>> registryKey) {
return new ResourceKeyArgument<>(registryKey);
}
private static <T> ResourceKey<T> getRegistryKey(
CommandContext<CommandSourceStack> context, String argument, ResourceKey<Registry<T>> registryKey, DynamicCommandExceptionType exception
) throws CommandSyntaxException {
ResourceKey<?> resourceKey = context.getArgument(argument, ResourceKey.class);
Optional<ResourceKey<T>> optional = resourceKey.cast(registryKey);
return (ResourceKey<T>)optional.orElseThrow(() -> exception.create(resourceKey));
}
private static <T> Registry<T> getRegistry(CommandContext<CommandSourceStack> context, ResourceKey<? extends Registry<T>> registryKey) {
return context.getSource().getServer().registryAccess().registryOrThrow(registryKey);
}
private static <T> Holder.Reference<T> resolveKey(
CommandContext<CommandSourceStack> context, String argument, ResourceKey<Registry<T>> registryKey, DynamicCommandExceptionType exception
) throws CommandSyntaxException {
ResourceKey<T> resourceKey = getRegistryKey(context, argument, registryKey, exception);
return (Holder.Reference<T>)getRegistry(context, registryKey).getHolder(resourceKey).orElseThrow(() -> exception.create(resourceKey.location()));
}
public static Holder.Reference<ConfiguredFeature<?, ?>> getConfiguredFeature(CommandContext<CommandSourceStack> context, String argument) throws CommandSyntaxException {
return resolveKey(context, argument, Registries.CONFIGURED_FEATURE, ERROR_INVALID_FEATURE);
}
public static Holder.Reference<Structure> getStructure(CommandContext<CommandSourceStack> context, String argument) throws CommandSyntaxException {
return resolveKey(context, argument, Registries.STRUCTURE, ERROR_INVALID_STRUCTURE);
}
public static Holder.Reference<StructureTemplatePool> getStructureTemplatePool(CommandContext<CommandSourceStack> context, String argument) throws CommandSyntaxException {
return resolveKey(context, argument, Registries.TEMPLATE_POOL, ERROR_INVALID_TEMPLATE_POOL);
}
public ResourceKey<T> parse(StringReader reader) throws CommandSyntaxException {
ResourceLocation resourceLocation = ResourceLocation.read(reader);
return ResourceKey.create(this.registryKey, resourceLocation);
}
@Override
public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> commandContext, SuggestionsBuilder suggestionsBuilder) {
return commandContext.getSource() instanceof SharedSuggestionProvider sharedSuggestionProvider
? sharedSuggestionProvider.suggestRegistryElements(
this.registryKey, SharedSuggestionProvider.ElementSuggestionType.ELEMENTS, suggestionsBuilder, commandContext
)
: suggestionsBuilder.buildFuture();
}
@Override
public Collection<String> getExamples() {
return EXAMPLES;
}
public static class Info<T> implements ArgumentTypeInfo<ResourceKeyArgument<T>, ResourceKeyArgument.Info<T>.Template> {
public void serializeToNetwork(ResourceKeyArgument.Info<T>.Template template, FriendlyByteBuf buffer) {
buffer.writeResourceKey(template.registryKey);
}
public ResourceKeyArgument.Info<T>.Template deserializeFromNetwork(FriendlyByteBuf buffer) {
return new ResourceKeyArgument.Info.Template(buffer.readRegistryKey());
}
public void serializeToJson(ResourceKeyArgument.Info<T>.Template template, JsonObject json) {
json.addProperty("registry", template.registryKey.location().toString());
}
public ResourceKeyArgument.Info<T>.Template unpack(ResourceKeyArgument<T> argument) {
return new ResourceKeyArgument.Info.Template(argument.registryKey);
}
public final class Template implements ArgumentTypeInfo.Template<ResourceKeyArgument<T>> {
final ResourceKey<? extends Registry<T>> registryKey;
Template(final ResourceKey<? extends Registry<T>> registryKey) {
this.registryKey = registryKey;
}
public ResourceKeyArgument<T> instantiate(CommandBuildContext context) {
return new ResourceKeyArgument<>(this.registryKey);
}
@Override
public ArgumentTypeInfo<ResourceKeyArgument<T>, ?> type() {
return Info.this;
}
}
}
}