fixing TeleportCommand

src/main/java/eu/mhsl/craftattack/worldmuseum/commands/TeleportCommand.java

@@ -4,20 +4,22 @@ import net.minestom.server.command.builder.Command;
 import net.minestom.server.command.builder.arguments.ArgumentType;
 import net.minestom.server.entity.Player;
 
+import java.util.Objects;
+
 public class TeleportCommand extends Command {
 
     public TeleportCommand() {
         super("tp","teleport");
-        setDefaultExecutor(((sender, context) -> {
-            sender.sendMessage("test");
-        }));
 
         var playerArgument = ArgumentType.Entity("Spieler").onlyPlayers(true);
 
         addSyntax(((sender, context) -> {
             Player targetPlayer = (Player) context.get(playerArgument).find(sender).get(0);
             Player p = (Player) sender;
-            p.teleport(targetPlayer.getPosition());
+            if (!Objects.equals(p.getInstance(), targetPlayer.getInstance()))
+                p.setInstance(Objects.requireNonNull(targetPlayer.getInstance()), targetPlayer.getPosition());
+            else
+                p.teleport(targetPlayer.getPosition());
         }), playerArgument);
     }
 }