src/game/java/net/minecraft/advancements/critereon/FilledBucketTrigger.java

package net.minecraft.advancements.critereon;

import com.mojang.serialization.Codec;
import com.mojang.serialization.codecs.RecordCodecBuilder;
import com.mojang.serialization.codecs.RecordCodecBuilder.Instance;
import java.util.Optional;
import net.minecraft.advancements.CriteriaTriggers;
import net.minecraft.advancements.Criterion;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.item.ItemStack;

public class FilledBucketTrigger extends SimpleCriterionTrigger<FilledBucketTrigger.TriggerInstance> {
    @Override
    public Codec<FilledBucketTrigger.TriggerInstance> codec() {
        return FilledBucketTrigger.TriggerInstance.CODEC;
    }

    public void trigger(ServerPlayer p_38773_, ItemStack p_38774_) {
        this.trigger(p_38773_, p_38777_ -> p_38777_.matches(p_38774_));
    }

    public static record TriggerInstance(Optional<ContextAwarePredicate> player, Optional<ItemPredicate> item)
        implements SimpleCriterionTrigger.SimpleInstance {
        public static final Codec<FilledBucketTrigger.TriggerInstance> CODEC = RecordCodecBuilder.create(
            p_325212_ -> p_325212_.group(
                        EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(FilledBucketTrigger.TriggerInstance::player),
                        ItemPredicate.CODEC.optionalFieldOf("item").forGetter(FilledBucketTrigger.TriggerInstance::item)
                    )
                    .apply(p_325212_, FilledBucketTrigger.TriggerInstance::new)
        );

        public static Criterion<FilledBucketTrigger.TriggerInstance> filledBucket(ItemPredicate.Builder p_297424_) {
            return CriteriaTriggers.FILLED_BUCKET.createCriterion(new FilledBucketTrigger.TriggerInstance(Optional.empty(), Optional.of(p_297424_.build())));
        }

        public boolean matches(ItemStack p_38792_) {
            return !this.item.isPresent() || this.item.get().test(p_38792_);
        }

        @Override
        public Optional<ContextAwarePredicate> player() {
            return this.player;
        }
    }
}