92 lines
		
	
	
	
		
			4.2 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
			
		
		
	
	
			92 lines
		
	
	
	
		
			4.2 KiB
		
	
	
	
		
			Java
		
	
	
	
	
	
| package net.minecraft.commands.arguments;
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| 
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| import com.mojang.brigadier.StringReader;
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| import com.mojang.brigadier.arguments.ArgumentType;
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| import com.mojang.brigadier.context.CommandContext;
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| import com.mojang.brigadier.exceptions.CommandSyntaxException;
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| import com.mojang.brigadier.exceptions.DynamicCommandExceptionType;
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| import com.mojang.brigadier.suggestion.Suggestions;
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| import com.mojang.brigadier.suggestion.SuggestionsBuilder;
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| import java.util.Arrays;
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| import java.util.Collection;
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| import java.util.concurrent.CompletableFuture;
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| import net.minecraft.commands.CommandBuildContext;
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| import net.minecraft.commands.CommandSourceStack;
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| import net.minecraft.commands.SharedSuggestionProvider;
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| import net.minecraft.core.Holder;
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| import net.minecraft.core.HolderLookup;
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| import net.minecraft.core.particles.ParticleOptions;
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| import net.minecraft.core.particles.ParticleType;
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| import net.minecraft.core.registries.Registries;
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| import net.minecraft.nbt.NbtOps;
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| import net.minecraft.nbt.TagParser;
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| import net.minecraft.network.chat.Component;
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| import net.minecraft.resources.RegistryOps;
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| import net.minecraft.resources.ResourceKey;
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| import net.minecraft.resources.ResourceLocation;
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| 
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| public class ParticleArgument implements ArgumentType<ParticleOptions> {
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| 	private static final Collection<String> EXAMPLES = Arrays.asList("foo", "foo:bar", "particle{foo:bar}");
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| 	public static final DynamicCommandExceptionType ERROR_UNKNOWN_PARTICLE = new DynamicCommandExceptionType(
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| 		object -> Component.translatableEscape("particle.notFound", object)
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| 	);
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| 	public static final DynamicCommandExceptionType ERROR_INVALID_OPTIONS = new DynamicCommandExceptionType(
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| 		object -> Component.translatableEscape("particle.invalidOptions", object)
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| 	);
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| 	private final HolderLookup.Provider registries;
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| 	private static final TagParser<?> VALUE_PARSER = TagParser.create(NbtOps.INSTANCE);
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| 
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| 	public ParticleArgument(CommandBuildContext buildContext) {
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| 		this.registries = buildContext;
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| 	}
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| 
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| 	public static ParticleArgument particle(CommandBuildContext buildContext) {
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| 		return new ParticleArgument(buildContext);
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| 	}
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| 
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| 	public static ParticleOptions getParticle(CommandContext<CommandSourceStack> context, String name) {
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| 		return context.getArgument(name, ParticleOptions.class);
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| 	}
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| 
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| 	public ParticleOptions parse(StringReader reader) throws CommandSyntaxException {
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| 		return readParticle(reader, this.registries);
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| 	}
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| 
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| 	@Override
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| 	public Collection<String> getExamples() {
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| 		return EXAMPLES;
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| 	}
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| 
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| 	public static ParticleOptions readParticle(StringReader reader, HolderLookup.Provider registries) throws CommandSyntaxException {
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| 		ParticleType<?> particleType = readParticleType(reader, registries.lookupOrThrow(Registries.PARTICLE_TYPE));
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| 		return readParticle(VALUE_PARSER, reader, (ParticleType<ParticleOptions>)particleType, registries);
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| 	}
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| 
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| 	private static ParticleType<?> readParticleType(StringReader reader, HolderLookup<ParticleType<?>> particleTypeLookup) throws CommandSyntaxException {
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| 		ResourceLocation resourceLocation = ResourceLocation.read(reader);
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| 		ResourceKey<ParticleType<?>> resourceKey = ResourceKey.create(Registries.PARTICLE_TYPE, resourceLocation);
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| 		return (ParticleType<?>)((Holder.Reference)particleTypeLookup.get(resourceKey)
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| 				.orElseThrow(() -> ERROR_UNKNOWN_PARTICLE.createWithContext(reader, resourceLocation)))
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| 			.value();
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| 	}
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| 
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| 	private static <T extends ParticleOptions, O> T readParticle(
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| 		TagParser<O> parser, StringReader reader, ParticleType<T> particleType, HolderLookup.Provider registries
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| 	) throws CommandSyntaxException {
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| 		RegistryOps<O> registryOps = registries.createSerializationContext(parser.getOps());
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| 		O object;
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| 		if (reader.canRead() && reader.peek() == '{') {
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| 			object = parser.parseAsArgument(reader);
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| 		} else {
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| 			object = registryOps.emptyMap();
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| 		}
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| 
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| 		return particleType.codec().codec().parse(registryOps, object).getOrThrow(ERROR_INVALID_OPTIONS::create);
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| 	}
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| 
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| 	@Override
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| 	public <S> CompletableFuture<Suggestions> listSuggestions(CommandContext<S> commandContext, SuggestionsBuilder suggestionsBuilder) {
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| 		HolderLookup.RegistryLookup<ParticleType<?>> registryLookup = this.registries.lookupOrThrow(Registries.PARTICLE_TYPE);
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| 		return SharedSuggestionProvider.suggestResource(registryLookup.listElementIds().map(ResourceKey::location), suggestionsBuilder);
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| 	}
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| }
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