Introduce support for Minecraft 1.21: Add ReflectionWrapper21, ChunkHider21, and enhance version compatibility across systems.

2025-07-31 10:43:40 +02:00
parent 297aa6151d
commit cf52b50333
19 changed files with 448 additions and 27 deletions
@@ -0,0 +1,59 @@
+/*
+ *   This file is a part of the SteamWar software.
+ *
+ *   Copyright (C) 2025 SteamWar.de-Serverteam
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU Affero General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU Affero General Public License for more details.
+ *
+ *   You should have received a copy of the GNU Affero General Public License
+ *   along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.fightsystem.utils;
+
+import de.steamwar.Reflection;
+import org.bukkit.Location;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.function.Function;
+
+public class ReflectionWrapper8 implements ReflectionWrapper {
+
+    private static final Class<?> packetPlayOutExplosion = Reflection.getClass("net.minecraft.network.protocol.game.ClientboundExplodePacket");
+    private static final Reflection.Field<List> explosionBlocks = Reflection.getField(packetPlayOutExplosion, List.class, 0);
+    private static final Function<Object, Location> explosionLocation = HullHider.posPacketToLocation(packetPlayOutExplosion, double.class, 1.0);
+
+    @Override
+    public Object explosionHider(Player player, Object packet, PacketHiderFunction packetHiderFunction) {
+        if(explosionBlocks.get(packet).isEmpty())
+            return packetHiderFunction.hide(player, packet, explosionLocation.apply(packet));
+
+        return packet;
+    }
+
+
+    private static final Class<?> itemStack = Reflection.getClass("net.minecraft.world.item.ItemStack");
+    private static final Reflection.Method asNMSCopy = Reflection.getTypedMethod(Reflection.getClass("org.bukkit.craftbukkit.inventory.CraftItemStack"), "asNMSCopy", itemStack, ItemStack.class);
+    private static final Class<?> nbtTagCompound = Reflection.getClass("net.minecraft.nbt.CompoundTag");
+    private static final Reflection.Method getTag = Reflection.getTypedMethod(itemStack, null, nbtTagCompound);
+    private static final Reflection.Method getKeys = Reflection.getTypedMethod(nbtTagCompound, null, Set.class);
+    @Override
+    public boolean hasItems(ItemStack stack) {
+        Set<String> keys = new HashSet<>((Set<String>) getKeys.invoke(getTag.invoke(asNMSCopy.invoke(null, stack))));
+        keys.remove("Enchantments");
+        keys.remove("Damage");
+        return !keys.isEmpty();
+    }
+}