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/*
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* This file is a part of the SteamWar software.
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*
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* Copyright (C) 2024 SteamWar.de-Serverteam
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package de.steamwar.bausystem.utils;
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import com.comphenix.tinyprotocol.Reflection;
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import de.steamwar.bausystem.features.util.NoClipCommand;
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import net.minecraft.core.Holder;
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import net.minecraft.core.component.DataComponents;
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import net.minecraft.core.particles.ParticleParam;
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import net.minecraft.nbt.NBTBase;
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import net.minecraft.nbt.NBTTagCompound;
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import net.minecraft.nbt.NBTTagList;
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import net.minecraft.network.protocol.game.PacketPlayInSetCreativeSlot;
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import net.minecraft.network.protocol.game.PacketPlayOutExplosion;
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import net.minecraft.network.protocol.game.PacketPlayOutGameStateChange;
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import net.minecraft.world.item.component.CustomData;
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import net.minecraft.world.level.EnumGamemode;
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import net.minecraft.world.level.Explosion;
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import org.bukkit.GameMode;
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import org.bukkit.Material;
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import org.bukkit.craftbukkit.v1_21_R1.entity.CraftPlayer;
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import org.bukkit.craftbukkit.v1_21_R1.inventory.CraftItemStack;
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import org.bukkit.entity.Player;
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import org.bukkit.inventory.ItemStack;
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import java.util.List;
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public class NMSWrapper21 implements NMSWrapper {
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@Override
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public void setInternalGameMode(Player player, GameMode gameMode) {
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((CraftPlayer) player).getHandle().e.a(EnumGamemode.a(gameMode.getValue()));
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}
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@Override
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public void setSlotToItemStack(Player player, Object o) {
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PacketPlayInSetCreativeSlot packetPlayInSetCreativeSlot = (PacketPlayInSetCreativeSlot) o;
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int index = packetPlayInSetCreativeSlot.b();
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if (index >= 36 && index <= 44) {
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index -= 36;
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} else if (index > 44) {
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index -= 5;
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} else if (index <= 8) {
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index = index - 8 + 36;
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}
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player.getInventory().setItem(index, CraftItemStack.asBukkitCopy(packetPlayInSetCreativeSlot.e()));
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if (index < 9) player.getInventory().setHeldItemSlot(index);
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player.updateInventory();
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}
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private static final Reflection.FieldAccessor<PacketPlayOutGameStateChange.a> gameStateChangeReason = Reflection.getField(NoClipCommand.gameStateChange, PacketPlayOutGameStateChange.a.class, 12);
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@Override
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public void setGameStateChangeReason(Object packet) {
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gameStateChangeReason.set(packet, PacketPlayOutGameStateChange.d);
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}
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@Override
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public void setPlayerBuildAbilities(Player player) {
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((CraftPlayer) player).getHandle().fZ().d = true;
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((CraftPlayer) player).getHandle().fZ().e = true;
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}
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@Override
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public Material pathMaterial() {
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return Material.DIRT_PATH;
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}
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private static final int threshold = 2048;
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@Override
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public boolean checkItemStack(ItemStack item) {
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net.minecraft.world.item.ItemStack nmsItem = CraftItemStack.asNMSCopy(item);
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NBTTagCompound tag = nmsItem.a(DataComponents.b, CustomData.a).c();
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if (tag.e("BlockEntityTag")) {
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NBTTagCompound blockTag = tag.p("BlockEntityTag");
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if (blockTag.e("Items")) {
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return drillDown(blockTag.c("Items", 10), 0, 0) > threshold;
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}
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}
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return false;
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}
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private int drillDown(NBTTagList items, int layer, int start) {
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if (layer > 2) return start + threshold;
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int invalid = start;
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for (NBTBase nbtBase : items) {
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if (!(nbtBase instanceof NBTTagCompound slot))
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continue;
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if (slot.e("tag")) {
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invalid += slot.f("Count");
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NBTTagCompound iTag = slot.p("tag");
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if (iTag.e("BlockEntityTag")) {
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NBTTagCompound blockTag = iTag.p("BlockEntityTag");
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if (blockTag.e("Items")) {
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invalid = drillDown(blockTag.c("Items", 10), layer + 1, invalid);
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}
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}
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}
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if (invalid > threshold)
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break;
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}
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return invalid;
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}
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private final Class<?> explosionPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutExplosion");
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private final Reflection.FieldAccessor<Double> a = Reflection.getField(explosionPacket, double.class, 0);
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private final Reflection.FieldAccessor<Double> b = Reflection.getField(explosionPacket, double.class, 1);
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private final Reflection.FieldAccessor<Double> c = Reflection.getField(explosionPacket, double.class, 2);
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private final Reflection.FieldAccessor<Float> d = Reflection.getField(explosionPacket, float.class, 0);
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private final Reflection.FieldAccessor<List> e = Reflection.getField(explosionPacket, List.class, 0);
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private final Reflection.FieldAccessor<Explosion.Effect> f = Reflection.getField(explosionPacket, Explosion.Effect.class, 0);
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private final Reflection.FieldAccessor<ParticleParam> g = Reflection.getField(explosionPacket, ParticleParam.class, 0);
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private final Reflection.FieldAccessor<ParticleParam> h = Reflection.getField(explosionPacket, ParticleParam.class, 1);
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private final Reflection.FieldAccessor<Holder> i = Reflection.getField(explosionPacket, Holder.class, 0);
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@Override
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public Object resetExplosionKnockback(Object packet) {
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PacketPlayOutExplosion packetPlayOutExplosion = (PacketPlayOutExplosion) packet;
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return new PacketPlayOutExplosion(
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a.get(packetPlayOutExplosion),
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b.get(packetPlayOutExplosion),
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c.get(packetPlayOutExplosion),
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d.get(packetPlayOutExplosion),
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e.get(packetPlayOutExplosion),
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null,
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f.get(packetPlayOutExplosion),
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g.get(packetPlayOutExplosion),
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h.get(packetPlayOutExplosion),
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i.get(packetPlayOutExplosion)
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);
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}
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}
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