package net.minecraft.advancements.critereon; import com.mojang.serialization.Codec; import com.mojang.serialization.codecs.RecordCodecBuilder; import java.util.Optional; import net.minecraft.advancements.CriteriaTriggers; import net.minecraft.advancements.Criterion; import net.minecraft.server.level.ServerPlayer; import net.minecraft.world.entity.Entity; import net.minecraft.world.item.ItemStack; import net.minecraft.world.level.storage.loot.LootContext; public class PlayerInteractTrigger extends SimpleCriterionTrigger { @Override public Codec codec() { return PlayerInteractTrigger.TriggerInstance.CODEC; } public void trigger(ServerPlayer player, ItemStack item, Entity entity) { LootContext lootContext = EntityPredicate.createContext(player, entity); this.trigger(player, triggerInstance -> triggerInstance.matches(item, lootContext)); } public record TriggerInstance(Optional player, Optional item, Optional entity) implements SimpleCriterionTrigger.SimpleInstance { public static final Codec CODEC = RecordCodecBuilder.create( instance -> instance.group( EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("player").forGetter(PlayerInteractTrigger.TriggerInstance::player), ItemPredicate.CODEC.optionalFieldOf("item").forGetter(PlayerInteractTrigger.TriggerInstance::item), EntityPredicate.ADVANCEMENT_CODEC.optionalFieldOf("entity").forGetter(PlayerInteractTrigger.TriggerInstance::entity) ) .apply(instance, PlayerInteractTrigger.TriggerInstance::new) ); public static Criterion itemUsedOnEntity( Optional player, ItemPredicate.Builder item, Optional entity ) { return CriteriaTriggers.PLAYER_INTERACTED_WITH_ENTITY.createCriterion(new PlayerInteractTrigger.TriggerInstance(player, Optional.of(item.build()), entity)); } public static Criterion itemUsedOnEntity(ItemPredicate.Builder item, Optional entity) { return itemUsedOnEntity(Optional.empty(), item, entity); } public boolean matches(ItemStack item, LootContext lootContext) { return this.item.isPresent() && !((ItemPredicate)this.item.get()).test(item) ? false : this.entity.isEmpty() || ((ContextAwarePredicate)this.entity.get()).matches(lootContext); } @Override public void validate(CriterionValidator validator) { SimpleCriterionTrigger.SimpleInstance.super.validate(validator); validator.validateEntity(this.entity, ".entity"); } } }