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package com.nisovin.shopkeepers.compat.v1_16_R3;
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import java.lang.reflect.Field;
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import java.util.Map;
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import java.util.Set;
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import org.bukkit.Material;
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import org.bukkit.craftbukkit.v1_16_R3.entity.CraftAbstractVillager;
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import org.bukkit.craftbukkit.v1_16_R3.entity.CraftEntity;
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import org.bukkit.craftbukkit.v1_16_R3.entity.CraftLivingEntity;
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import org.bukkit.craftbukkit.v1_16_R3.entity.CraftPlayer;
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import org.bukkit.craftbukkit.v1_16_R3.entity.CraftVillager;
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import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftItemStack;
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import org.bukkit.craftbukkit.v1_16_R3.inventory.CraftMerchant;
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import org.bukkit.craftbukkit.v1_16_R3.util.CraftMagicNumbers;
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import org.bukkit.entity.AbstractVillager;
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import org.bukkit.entity.LivingEntity;
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import org.bukkit.entity.PiglinAbstract;
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import org.bukkit.entity.Player;
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import org.bukkit.entity.Raider;
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import org.bukkit.entity.Villager;
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import org.bukkit.entity.Zoglin;
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import org.bukkit.inventory.Inventory;
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import org.bukkit.inventory.ItemStack;
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import org.bukkit.inventory.Merchant;
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import org.bukkit.inventory.MerchantInventory;
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import com.nisovin.shopkeepers.compat.api.NMSCallProvider;
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import com.nisovin.shopkeepers.util.ItemUtils;
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import net.minecraft.server.v1_16_R3.Entity;
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import net.minecraft.server.v1_16_R3.EntityHuman;
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import net.minecraft.server.v1_16_R3.EntityInsentient;
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import net.minecraft.server.v1_16_R3.EntityLiving;
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import net.minecraft.server.v1_16_R3.EntityPlayer;
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import net.minecraft.server.v1_16_R3.GameProfileSerializer;
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import net.minecraft.server.v1_16_R3.IMerchant;
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import net.minecraft.server.v1_16_R3.MerchantRecipeList;
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import net.minecraft.server.v1_16_R3.NBTTagCompound;
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import net.minecraft.server.v1_16_R3.PathfinderGoalFloat;
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import net.minecraft.server.v1_16_R3.PathfinderGoalLookAtPlayer;
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import net.minecraft.server.v1_16_R3.PathfinderGoalSelector;
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public final class NMSHandler implements NMSCallProvider {
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@Override
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public String getVersionId() {
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return "1_16_R3";
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}
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@Override
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public void overwriteLivingEntityAI(LivingEntity entity) {
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try {
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EntityLiving mcLivingEntity = ((CraftLivingEntity) entity).getHandle();
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// example: armor stands are living, but not insentient
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if (!(mcLivingEntity instanceof EntityInsentient)) return;
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// make goal selector items accessible:
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Field cField = PathfinderGoalSelector.class.getDeclaredField("c"); // active goals
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cField.setAccessible(true);
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Field dField = PathfinderGoalSelector.class.getDeclaredField("d"); // registered goals
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dField.setAccessible(true);
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// overwrite goal selector:
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Field goalsField = EntityInsentient.class.getDeclaredField("goalSelector");
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goalsField.setAccessible(true);
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PathfinderGoalSelector goals = (PathfinderGoalSelector) goalsField.get(mcLivingEntity);
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// clear old goals:
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Map<?, ?> goals_c = (Map<?, ?>) cField.get(goals);
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goals_c.clear();
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Set<?> goals_d = (Set<?>) dField.get(goals);
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goals_d.clear();
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// add new goals:
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goals.a(0, new PathfinderGoalFloat((EntityInsentient) mcLivingEntity));
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goals.a(1, new PathfinderGoalLookAtPlayer((EntityInsentient) mcLivingEntity, EntityHuman.class, 12.0F, 1.0F));
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// overwrite target selector:
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Field targetsField = EntityInsentient.class.getDeclaredField("targetSelector");
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targetsField.setAccessible(true);
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PathfinderGoalSelector targets = (PathfinderGoalSelector) targetsField.get(mcLivingEntity);
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// clear old target goals:
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Map<?, ?> targets_c = (Map<?, ?>) cField.get(targets);
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targets_c.clear();
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Set<?> targets_d = (Set<?>) dField.get(targets);
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targets_d.clear();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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@Override
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public void tickAI(LivingEntity entity) {
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EntityLiving mcLivingEntity = ((CraftLivingEntity) entity).getHandle();
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// example: armor stands are living, but not insentient
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if (!(mcLivingEntity instanceof EntityInsentient)) return;
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EntityInsentient mcInsentientEntity = ((EntityInsentient) mcLivingEntity);
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mcInsentientEntity.getEntitySenses().a(); // clear sensing cache
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mcInsentientEntity.goalSelector.doTick();
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mcInsentientEntity.getControllerLook().a(); // tick look controller
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mcInsentientEntity.getEntitySenses().a(); // clear sensing cache
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}
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@Override
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public void setOnGround(org.bukkit.entity.Entity entity, boolean onGround) {
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Entity mcEntity = ((CraftEntity) entity).getHandle();
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mcEntity.setOnGround(onGround);
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}
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@Override
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public boolean isNoAIDisablingGravity() {
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return true;
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}
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@Override
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public void setNoclip(org.bukkit.entity.Entity entity) {
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// when gravity gets disabled, we are able to also disable collisions/pushing of mobs via the noclip flag:
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// this might not properly work for Vec, since those disable noclip again after their movement:
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Entity mcEntity = ((CraftEntity) entity).getHandle();
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mcEntity.noclip = true;
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}
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@Override
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public void setCanJoinRaid(Raider raider, boolean canJoinRaid) {
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// only works in the latest versions of 1.15.1 and upwards:
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raider.setCanJoinRaid(canJoinRaid);
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}
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@Override
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public void setExclusiveAdult(LivingEntity entity) {
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if (entity instanceof PiglinAbstract) {
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((PiglinAbstract) entity).setBaby(false);
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} else if (entity instanceof Zoglin) {
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((Zoglin) entity).setBaby(false);
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}
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}
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@Override
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public boolean matches(ItemStack provided, ItemStack required) {
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if (provided == required) return true;
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// if the required item is empty, then the provided item has to be empty as well:
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if (ItemUtils.isEmpty(required)) return ItemUtils.isEmpty(provided);
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else if (ItemUtils.isEmpty(provided)) return false;
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if (provided.getType() != required.getType()) return false;
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net.minecraft.server.v1_16_R3.ItemStack nmsProvided = CraftItemStack.asNMSCopy(provided);
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net.minecraft.server.v1_16_R3.ItemStack nmsRequired = CraftItemStack.asNMSCopy(required);
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NBTTagCompound providedTag = nmsProvided.getTag();
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NBTTagCompound requiredTag = nmsRequired.getTag();
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return GameProfileSerializer.a(requiredTag, providedTag, false); // compare tags
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}
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@Override
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public void updateTrades(Player player) {
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Inventory openInventory = player.getOpenInventory().getTopInventory();
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if (!(openInventory instanceof MerchantInventory)) {
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return;
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}
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MerchantInventory merchantInventory = (MerchantInventory) openInventory;
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// update merchant inventory on the server (updates the result item, etc.):
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merchantInventory.setItem(0, merchantInventory.getItem(0));
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Merchant merchant = merchantInventory.getMerchant();
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IMerchant nmsMerchant;
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boolean regularVillager = false;
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boolean canRestock = false;
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// note: when using the 'is-regular-villager'-flag, using level 0 allows hiding the level name suffix
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int merchantLevel = 1;
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int merchantExperience = 0;
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if (merchant instanceof Villager) {
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nmsMerchant = ((CraftVillager) merchant).getHandle();
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Villager villager = (Villager) merchant;
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regularVillager = true;
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canRestock = true;
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merchantLevel = villager.getVillagerLevel();
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merchantExperience = villager.getVillagerExperience();
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} else if (merchant instanceof AbstractVillager) {
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nmsMerchant = ((CraftAbstractVillager) merchant).getHandle();
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} else {
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nmsMerchant = ((CraftMerchant) merchant).getMerchant();
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merchantLevel = 0; // hide name suffix
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}
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MerchantRecipeList merchantRecipeList = nmsMerchant.getOffers();
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if (merchantRecipeList == null) merchantRecipeList = new MerchantRecipeList(); // just in case
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// send PacketPlayOutOpenWindowMerchant packet: window id, recipe list, merchant level (1: Novice, .., 5:
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// Master), merchant total experience, is-regular-villager flag (false: hides some gui elements), can-restock
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// flag (false: hides restock message if out of stock)
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EntityPlayer nmsPlayer = ((CraftPlayer) player).getHandle();
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nmsPlayer.openTrade(nmsPlayer.activeContainer.windowId, merchantRecipeList, merchantLevel, merchantExperience, regularVillager, canRestock);
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}
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@Override
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public String getItemSNBT(ItemStack itemStack) {
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if (itemStack == null) return null;
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net.minecraft.server.v1_16_R3.ItemStack nmsItem = CraftItemStack.asNMSCopy(itemStack);
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NBTTagCompound itemNBT = nmsItem.save(new NBTTagCompound());
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return itemNBT.toString();
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}
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@Override
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public String getItemTypeTranslationKey(Material material) {
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if (material == null) return null;
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net.minecraft.server.v1_16_R3.Item nmsItem = CraftMagicNumbers.getItem(material);
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if (nmsItem == null) return null;
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return nmsItem.getName();
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}
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}
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blablubbabc