Improve next package handling

src/main/java/emu/nebula/game/player/Player.java

@@ -505,6 +505,10 @@ public class Player implements GameDatabaseObject {
     
     // Next packages
     
+    public boolean hasNextPackages() {
+        return this.getNextPackages().size() > 0;
+    }
+    
     public void addNextPackage(int msgId, ProtoMessage<?> proto) {
         this.getNextPackages().add(new NetMsgPacket(msgId, proto));
     }

src/main/java/emu/nebula/net/GameSession.java

@@ -11,6 +11,7 @@ import emu.nebula.game.account.Account;
 import emu.nebula.game.account.AccountHelper;
 import emu.nebula.game.player.Player;
 import emu.nebula.proto.Public.MailState;
+import emu.nebula.proto.Public.Nil;
 import emu.nebula.util.AeadHelper;
 import emu.nebula.util.Utils;
 import lombok.Getter;
@@ -140,25 +141,27 @@ public class GameSession {
     }
     
     // Packet encoding helper functions
-    
-    public byte[] encodeMsg(int msgId, byte[] packet) {
-        return PacketHelper.encodeMsg(msgId, packet);
-    }
 
     @SneakyThrows
     public byte[] encodeMsg(int msgId, ProtoMessage<?> proto) {
         // Add any extra data
-        this.addNextPackage(proto);
+        this.addNextPackages(proto);
         
         // Encode to message like normal
         return PacketHelper.encodeMsg(msgId, proto);
     }
     
     public byte[] encodeMsg(int msgId) {
+        // Create a proto so we can add next packages
+        if (this.getPlayer() != null && this.getPlayer().hasNextPackages()) {
+            return this.encodeMsg(msgId, Nil.newInstance());
+        }
+        
+        // Encode simple message
         return PacketHelper.encodeMsg(msgId);
     }
     
-    private void addNextPackage(ProtoMessage<?> proto) {
+    private void addNextPackages(ProtoMessage<?> proto) {
         // Sanity check and make sure proto has a "nextPackage" field
         if (this.getPlayer() == null || !PacketHelper.hasNextPackageMethod(proto)) {
             return;

src/main/java/emu/nebula/server/handlers/Handler.java

@@ -10,7 +10,9 @@ public class Handler extends NetHandler {
 
     @Override
     public byte[] handle(GameSession session, byte[] message) throws Exception {
-        // Template
+        // Template hanlder
+        
+        // Encode and send
         return session.encodeMsg(NetMsgId.none);
     }