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