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 UsingItemTrigger extends SimpleCriterionTrigger { @Override public Codec codec() { return UsingItemTrigger.TriggerInstance.CODEC; } public void trigger(ServerPlayer p_163866_, ItemStack p_163867_) { this.trigger(p_163866_, p_163870_ -> p_163870_.matches(p_163867_)); } public record TriggerInstance(Optional player, Optional item) implements SimpleCriterionTrigger.SimpleInstance { public static final Codec CODEC = RecordCodecBuilder.create( p_325259_ -> p_325259_.group( EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(UsingItemTrigger.TriggerInstance::player), ItemPredicate.CODEC.optionalFieldOf("item").forGetter(UsingItemTrigger.TriggerInstance::item) ) .apply(p_325259_, UsingItemTrigger.TriggerInstance::new) ); public static Criterion lookingAt(EntityPredicate.Builder p_163884_, ItemPredicate.Builder p_163885_) { return CriteriaTriggers.USING_ITEM .createCriterion(new UsingItemTrigger.TriggerInstance(Optional.of(EntityPredicate.wrap(p_163884_)), Optional.of(p_163885_.build()))); } public boolean matches(ItemStack p_163887_) { return !this.item.isPresent() || this.item.get().test(p_163887_); } @Override public Optional player() { return this.player; } } }