@startuml
|Player|
start
:scan RFID Tag;

|RoomPc|
:Auth query;

|Globaler Server|
:check Auth;

if (Valid?) then (yes)
  |RoomPc|
  :Reserve to player and team;
  :unlock door;
  
  if (All members registered?) then (no)
    :wait for final player;
    detach
  else (yes)
    :enable game;
  endif

else (no)
  |RoomPc|
  :Show error;
  stop
endif

|Player|
:enter room;
:select language;
:select difficulty;

|RoomPc|
:lock door;
:start game;

fork
  :game mechanics;
fork again
  :music & effects;
fork again
  :score;
end fork

:time out;
:show score;
:Send score to server;
:unlock door;

|Globaler Server|
:update player and group score;

|RoomPc|
:set room available;
stop
@enduml