Fix REntity for 1.15.2-1.21.3

<1.15.2: Untested

BauSystem/BauSystem_21/src/de/steamwar/bausystem/utils/NMSWrapper21.java

@@ -21,9 +21,7 @@ package de.steamwar.bausystem.utils;
 
 import com.comphenix.tinyprotocol.Reflection;
 import de.steamwar.bausystem.features.util.NoClipCommand;
-import net.minecraft.core.Holder;
 import net.minecraft.core.component.DataComponents;
-import net.minecraft.core.particles.ParticleParam;
 import net.minecraft.nbt.NBTBase;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.nbt.NBTTagList;
@@ -36,8 +34,6 @@ import net.minecraft.world.entity.player.EntityHuman;
 import net.minecraft.world.entity.player.PlayerAbilities;
 import net.minecraft.world.item.component.CustomData;
 import net.minecraft.world.level.EnumGamemode;
-import net.minecraft.world.level.Explosion;
-import net.minecraft.world.phys.Vec3D;
 import org.bukkit.GameMode;
 import org.bukkit.Material;
 import org.bukkit.craftbukkit.v1_21_R2.entity.CraftPlayer;
@@ -45,7 +41,6 @@ import org.bukkit.craftbukkit.v1_21_R2.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.inventory.ItemStack;
 
-import java.util.List;
 import java.util.Optional;
 
 public class NMSWrapper21 implements NMSWrapper {
@@ -132,12 +127,15 @@ public class NMSWrapper21 implements NMSWrapper {
         return invalid;
     }
 
-    private final Class<?> explosionPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutExplosion");
-    private final Reflection.FieldAccessor<Optional> explosionKnockback = Reflection.getField(explosionPacket, Optional.class, 0);
-
     @Override
     public Object resetExplosionKnockback(Object packet) {
-        explosionKnockback.set(packet, Optional.empty());
-        return packet;
+        PacketPlayOutExplosion explosion = (PacketPlayOutExplosion) packet;
+
+        return new PacketPlayOutExplosion(
+                explosion.b(),
+                Optional.empty(),
+                explosion.f(),
+                explosion.g()
+        );
     }
 }