Add NoCreativeKnockback

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_15/src/de/steamwar/bausystem/utils/NMSWrapper15.java

@@ -37,7 +37,6 @@ import org.bukkit.Particle;
 import org.bukkit.World;
 import org.bukkit.craftbukkit.v1_15_R1.entity.CraftEntity;
 import org.bukkit.craftbukkit.v1_15_R1.entity.CraftPlayer;
-import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventory;
 import org.bukkit.craftbukkit.v1_15_R1.inventory.CraftItemStack;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.TNTPrimed;
@@ -48,9 +47,10 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.function.LongSupplier;
 
-public class NMSWrapper15 implements NMSWrapper.INMSWrapper {
+public class NMSWrapper15 implements NMSWrapper {
 
     private static final Reflection.FieldAccessor<EnumGamemode> playerGameMode = Reflection.getField(PlayerInteractManager.class, EnumGamemode.class, 0);
+
     @Override
     @SuppressWarnings("deprecation")
     public void setInternalGameMode(Player player, GameMode gameMode) {
@@ -80,6 +80,7 @@ public class NMSWrapper15 implements NMSWrapper.INMSWrapper {
 
     private static final List<Packet<?>> packets = new ArrayList<>();
     private static final Vec3D noMotion = new Vec3D(0, 0, 0);
+
     @Override
     public void createTickCache(World world) {
         packets.clear();
@@ -105,6 +106,7 @@ public class NMSWrapper15 implements NMSWrapper.INMSWrapper {
     }
 
     private static final Reflection.FieldAccessor<Integer> gameStateChangeReason = Reflection.getField(NoClipCommand.gameStateChange, int.class, 0);
+
     @Override
     public void setGameStateChangeReason(Object packet) {
         gameStateChangeReason.set(packet, 3);
@@ -127,6 +129,7 @@ public class NMSWrapper15 implements NMSWrapper.INMSWrapper {
     }
 
     private static final int threshold = 2048;
+
     @Override
     public boolean checkItemStack(ItemStack item) {
         net.minecraft.server.v1_15_R1.ItemStack nmsItem = CraftItemStack.asNMSCopy(item);
@@ -183,4 +186,17 @@ public class NMSWrapper15 implements NMSWrapper.INMSWrapper {
     public AbstractTraceEntity createTrace(World world, Vector tntPosition, boolean tnt) {
         return new TraceEntity15(world, tntPosition, tnt);
     }
+
+    private final Class<?> explosionPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutExplosion");
+    private final Reflection.FieldAccessor<Double> a = Reflection.getField(explosionPacket, double.class, 0);
+    private final Reflection.FieldAccessor<Double> b = Reflection.getField(explosionPacket, double.class, 1);
+    private final Reflection.FieldAccessor<Double> c = Reflection.getField(explosionPacket, double.class, 2);
+    private final Reflection.FieldAccessor<Float> d = Reflection.getField(explosionPacket, float.class, 0);
+    private final Reflection.FieldAccessor<List> e = Reflection.getField(explosionPacket, List.class, 0);
+
+    @Override
+    public Object resetExplosionKnockback(Object packet) {
+        PacketPlayOutExplosion packetPlayOutExplosion = (PacketPlayOutExplosion) packet;
+        return new PacketPlayOutExplosion(a.get(packetPlayOutExplosion), b.get(packetPlayOutExplosion), c.get(packetPlayOutExplosion), d.get(packetPlayOutExplosion), e.get(packetPlayOutExplosion), Vec3D.a);
+    }
 }

BauSystem_18/src/de/steamwar/bausystem/utils/NMSWrapper18.java

@@ -52,9 +52,10 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.function.LongSupplier;
 
-public class NMSWrapper18 implements NMSWrapper.INMSWrapper {
+public class NMSWrapper18 implements NMSWrapper {
 
     private static final Reflection.FieldAccessor<EnumGamemode> playerGameMode = Reflection.getField(PlayerInteractManager.class, EnumGamemode.class, 0);
+
     @Override
     @SuppressWarnings("deprecation")
     public void setInternalGameMode(Player player, GameMode gameMode) {
@@ -85,6 +86,7 @@ public class NMSWrapper18 implements NMSWrapper.INMSWrapper {
 
     private static final List<Packet<?>> packets = new ArrayList<>();
     private static final Vec3D noMotion = new Vec3D(0, 0, 0);
+
     @Override
     public void createTickCache(World world) {
         packets.clear();
@@ -109,6 +111,7 @@ public class NMSWrapper18 implements NMSWrapper.INMSWrapper {
     }
 
     private static final Reflection.FieldAccessor<PacketPlayOutGameStateChange.a> gameStateChangeReason = Reflection.getField(NoClipCommand.gameStateChange, PacketPlayOutGameStateChange.a.class, 12);
+
     @Override
     public void setGameStateChangeReason(Object packet) {
         gameStateChangeReason.set(packet, PacketPlayOutGameStateChange.d);
@@ -131,6 +134,7 @@ public class NMSWrapper18 implements NMSWrapper.INMSWrapper {
     }
 
     private static final int threshold = 2048;
+
     @Override
     public boolean checkItemStack(ItemStack item) {
         net.minecraft.world.item.ItemStack nmsItem = CraftItemStack.asNMSCopy(item);
@@ -187,4 +191,17 @@ public class NMSWrapper18 implements NMSWrapper.INMSWrapper {
     public AbstractTraceEntity createTrace(World world, Vector tntPosition, boolean tnt) {
         return new TraceEntity18(world, tntPosition, tnt);
     }
+
+    private final Class<?> explosionPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutExplosion");
+    private final Reflection.FieldAccessor<Double> a = Reflection.getField(explosionPacket, double.class, 0);
+    private final Reflection.FieldAccessor<Double> b = Reflection.getField(explosionPacket, double.class, 1);
+    private final Reflection.FieldAccessor<Double> c = Reflection.getField(explosionPacket, double.class, 2);
+    private final Reflection.FieldAccessor<Float> d = Reflection.getField(explosionPacket, float.class, 0);
+    private final Reflection.FieldAccessor<List> e = Reflection.getField(explosionPacket, List.class, 0);
+
+    @Override
+    public Object resetExplosionKnockback(Object packet) {
+        PacketPlayOutExplosion packetPlayOutExplosion = (PacketPlayOutExplosion) packet;
+        return new PacketPlayOutExplosion(a.get(packetPlayOutExplosion), b.get(packetPlayOutExplosion), c.get(packetPlayOutExplosion), d.get(packetPlayOutExplosion), e.get(packetPlayOutExplosion), null);
+    }
 }

BauSystem_19/src/de/steamwar/bausystem/utils/NMSWrapper19.java

@@ -52,9 +52,10 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.function.LongSupplier;
 
-public class NMSWrapper19 implements NMSWrapper.INMSWrapper {
+public class NMSWrapper19 implements NMSWrapper {
 
     private static final Reflection.FieldAccessor<EnumGamemode> playerGameMode = Reflection.getField(PlayerInteractManager.class, EnumGamemode.class, 0);
+
     @Override
     @SuppressWarnings("deprecation")
     public void setInternalGameMode(Player player, GameMode gameMode) {
@@ -85,6 +86,7 @@ public class NMSWrapper19 implements NMSWrapper.INMSWrapper {
 
     private static final List<Packet<?>> packets = new ArrayList<>();
     private static final Vec3D noMotion = new Vec3D(0, 0, 0);
+
     @Override
     public void createTickCache(World world) {
         packets.clear();
@@ -109,6 +111,7 @@ public class NMSWrapper19 implements NMSWrapper.INMSWrapper {
     }
 
     private static final Reflection.FieldAccessor<PacketPlayOutGameStateChange.a> gameStateChangeReason = Reflection.getField(NoClipCommand.gameStateChange, PacketPlayOutGameStateChange.a.class, 12);
+
     @Override
     public void setGameStateChangeReason(Object packet) {
         gameStateChangeReason.set(packet, PacketPlayOutGameStateChange.d);
@@ -131,6 +134,7 @@ public class NMSWrapper19 implements NMSWrapper.INMSWrapper {
     }
 
     private static final int threshold = 2048;
+
     @Override
     public boolean checkItemStack(ItemStack item) {
         net.minecraft.world.item.ItemStack nmsItem = CraftItemStack.asNMSCopy(item);
@@ -187,4 +191,17 @@ public class NMSWrapper19 implements NMSWrapper.INMSWrapper {
     public AbstractTraceEntity createTrace(World world, Vector tntPosition, boolean tnt) {
         return new TraceEntity19(world, tntPosition, tnt);
     }
+
+    private final Class<?> explosionPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutExplosion");
+    private final Reflection.FieldAccessor<Double> a = Reflection.getField(explosionPacket, double.class, 0);
+    private final Reflection.FieldAccessor<Double> b = Reflection.getField(explosionPacket, double.class, 1);
+    private final Reflection.FieldAccessor<Double> c = Reflection.getField(explosionPacket, double.class, 2);
+    private final Reflection.FieldAccessor<Float> d = Reflection.getField(explosionPacket, float.class, 0);
+    private final Reflection.FieldAccessor<List> e = Reflection.getField(explosionPacket, List.class, 0);
+
+    @Override
+    public Object resetExplosionKnockback(Object packet) {
+        PacketPlayOutExplosion packetPlayOutExplosion = (PacketPlayOutExplosion) packet;
+        return new PacketPlayOutExplosion(a.get(packetPlayOutExplosion), b.get(packetPlayOutExplosion), c.get(packetPlayOutExplosion), d.get(packetPlayOutExplosion), e.get(packetPlayOutExplosion), null);
+    }
 }

BauSystem_Main/src/de/steamwar/bausystem/features/world/NoCreativeKnockback.java

@@ -0,0 +1,45 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2022  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.bausystem.features.world;
+
+import com.comphenix.tinyprotocol.Reflection;
+import de.steamwar.bausystem.linkage.LinkageType;
+import de.steamwar.bausystem.linkage.Linked;
+import de.steamwar.bausystem.utils.NMSWrapper;
+import de.steamwar.bausystem.utils.ProtocolAPI;
+import org.bukkit.GameMode;
+import org.bukkit.entity.Player;
+
+import java.util.function.BiFunction;
+
+@Linked(LinkageType.PLAIN)
+public class NoCreativeKnockback {
+
+    private Class<?> explosionPacket = Reflection.getClass("{nms.network.protocol.game}.PacketPlayOutExplosion");
+
+    {
+        BiFunction<Player, Object, Object> knockbackResetter = (player, o) -> {
+            if (player.getGameMode() != GameMode.CREATIVE) return o;
+            return NMSWrapper.impl.resetExplosionKnockback(o);
+        };
+
+        ProtocolAPI.setOutgoingHandler(explosionPacket, knockbackResetter);
+    }
+}

BauSystem_Main/src/de/steamwar/bausystem/linkage/LinkageUtils.java

@@ -23,6 +23,7 @@ import de.steamwar.bausystem.BauSystem;
 import de.steamwar.bausystem.configplayer.Config;
 import de.steamwar.bausystem.utils.FlatteningWrapper;
 import de.steamwar.bausystem.utils.NMSWrapper;
+import de.steamwar.bausystem.utils.ProtocolWrapper;
 import lombok.experimental.UtilityClass;
 import org.bukkit.Bukkit;
 
@@ -46,7 +47,8 @@ public class LinkageUtils {
         objectMap.put(Config.class, Config.getInstance());
         objectMap.put(BauSystem.class, BauSystem.getInstance());
         objectMap.put(FlatteningWrapper.class, FlatteningWrapper.impl);
-        objectMap.put(NMSWrapper.INMSWrapper.class, NMSWrapper.impl);
+        objectMap.put(NMSWrapper.class, NMSWrapper.impl);
+        objectMap.put(ProtocolWrapper.class, ProtocolWrapper.impl);
     }
 
     public void link() {

BauSystem_Main/src/de/steamwar/bausystem/utils/NMSWrapper.java

@@ -35,12 +35,9 @@ import org.bukkit.util.Vector;
 
 import java.util.function.LongSupplier;
 
-public class NMSWrapper {
+public interface NMSWrapper {
-    private NMSWrapper() {}
+    NMSWrapper impl = VersionDependent.getVersionImpl(BauSystem.getInstance());
 
-    public static final INMSWrapper impl = VersionDependent.getVersionImpl(BauSystem.getInstance());
-
-    public interface INMSWrapper {
     void setInternalGameMode(Player player, GameMode gameMode);
     void setSlotToItemStack(Player player, Object o);
 
@@ -60,5 +57,6 @@ public class NMSWrapper {
     AbstractSimulatorEntity createSimulator(World world, Vector tntPosition, boolean highlight);
     AbstractDetonatorEntity constructDetonator(World world, Vector position);
     AbstractTraceEntity createTrace(World world, Vector tntPosition, boolean tnt);
-    }
+
+    Object resetExplosionKnockback(Object packet);
 }