Code/net/minecraft/world/entity/npc/ClientSideMerchant.java

package net.minecraft.world.entity.npc;

import javax.annotation.Nullable;
import net.minecraft.sounds.SoundEvent;
import net.minecraft.sounds.SoundEvents;
import net.minecraft.world.entity.player.Player;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.trading.Merchant;
import net.minecraft.world.item.trading.MerchantOffer;
import net.minecraft.world.item.trading.MerchantOffers;

public class ClientSideMerchant implements Merchant {
    private final Player source;
    private MerchantOffers offers = new MerchantOffers();
    private int xp;

    public ClientSideMerchant(Player p_35344_) {
        this.source = p_35344_;
    }

    @Override
    public Player getTradingPlayer() {
        return this.source;
    }

    @Override
    public void setTradingPlayer(@Nullable Player p_35356_) {
    }

    @Override
    public MerchantOffers getOffers() {
        return this.offers;
    }

    @Override
    public void overrideOffers(MerchantOffers p_35348_) {
        this.offers = p_35348_;
    }

    @Override
    public void notifyTrade(MerchantOffer p_35346_) {
        p_35346_.increaseUses();
    }

    @Override
    public void notifyTradeUpdated(ItemStack p_35358_) {
    }

    @Override
    public boolean isClientSide() {
        return this.source.level().isClientSide;
    }

    @Override
    public boolean stillValid(Player p_377376_) {
        return this.source == p_377376_;
    }

    @Override
    public int getVillagerXp() {
        return this.xp;
    }

    @Override
    public void overrideXp(int p_35360_) {
        this.xp = p_35360_;
    }

    @Override
    public boolean showProgressBar() {
        return true;
    }

    @Override
    public SoundEvent getNotifyTradeSound() {
        return SoundEvents.VILLAGER_YES;
    }
}