src/me/yaruma/fightsystem/utils/TechHider.java

@@ -69,12 +69,8 @@ public class TechHider {
         ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(FightSystem.getPlugin(), PacketType.Play.Server.MAP_CHUNK) {
             @Override
             public void onPacketSending(PacketEvent e) {
-                PacketContainer packet = e.getPacket().deepClone();
+                PacketContainer packet = e.getPacket();
-                e.setPacket(packet);
                 StructureModifier<Integer> ints = packet.getIntegers();
-                StructureModifier<byte[]> byteArray = packet.getByteArrays();
-                StructureModifier<List> list = packet.getSpecificModifier(List.class);
-                List nmsTags = list.read(0);
 
                 int chunkX = ints.read(0);
                 int chunkZ = ints.read(1);
@@ -82,6 +78,11 @@ public class TechHider {
                 if(bypass(p, chunkX, chunkZ))
                     return;
 
+                packet = packet.deepClone();
+                e.setPacket(packet);
+                StructureModifier<byte[]> byteArray = packet.getByteArrays();
+                StructureModifier<List> list = packet.getSpecificModifier(List.class);
+                List nmsTags = list.read(0);
                 boolean changed = false;
                 for(int i = nmsTags.size() - 1; i >= 0; i--){
                     NbtCompound nbt = NbtFactory.fromNMSCompound(nmsTags.get(i));
@@ -168,15 +169,16 @@ public class TechHider {
         ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(FightSystem.getPlugin(), PacketType.Play.Server.BLOCK_CHANGE) {
             @Override
             public void onPacketSending(PacketEvent e) {
-                PacketContainer packet = e.getPacket().deepClone();
+                PacketContainer packet = e.getPacket();
-                e.setPacket(packet);
-                StructureModifier<WrappedBlockData> blockStructure = packet.getBlockData();
                 BlockPosition pos = packet.getBlockPositionModifier().read(0);
 
                 Player p = e.getPlayer();
                 if(bypass(p, posToChunk(pos.getX()), posToChunk(pos.getZ())))
                     return;
 
+                packet = packet.deepClone();
+                e.setPacket(packet);
+                StructureModifier<WrappedBlockData> blockStructure = packet.getBlockData();
                 WrappedBlockData block = blockStructure.read(0);
                 if(Config.HiddenBlocks.contains(block.getType().getId())){
                     block.setType(obfuscateMaterial);
@@ -187,16 +189,17 @@ public class TechHider {
         ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(FightSystem.getPlugin(), PacketType.Play.Server.MULTI_BLOCK_CHANGE) {
             @Override
             public void onPacketSending(PacketEvent e) {
-                PacketContainer packet = e.getPacket().deepClone();
+                PacketContainer packet = e.getPacket();
-                e.setPacket(packet);
-                StructureModifier<MultiBlockChangeInfo[]> blockStructure = packet.getMultiBlockChangeInfoArrays();
-                MultiBlockChangeInfo[] changes = blockStructure.read(0);
 
                 Player p = e.getPlayer();
                 ChunkCoordIntPair pos = packet.getChunkCoordIntPairs().read(0);
                 if(bypass(p, pos.getChunkX(), pos.getChunkZ()))
                     return;
 
+                packet = packet.shallowClone();
+                e.setPacket(packet);
+                StructureModifier<MultiBlockChangeInfo[]> blockStructure = packet.getMultiBlockChangeInfoArrays();
+                MultiBlockChangeInfo[] changes = blockStructure.read(0).clone();
                 boolean changed = false;
                 for(MultiBlockChangeInfo mbci : changes){
                     WrappedBlockData block = mbci.getData();