• APPROACH_PERSON : state_machine.cpp
• APPROACH_PRESENTATION : state_machine.cpp
• ASK_PERSON : state_machine.cpp
• ASK_REPETITION : state_machine.cpp
• PRESENT : state_machine.cpp
• RETURN_START : state_machine.cpp
• START : state_machine.cpp
• TALK_BYE : state_machine.cpp
• WAIT_BUTTON_REPETITION : state_machine.cpp
• WAIT_BUTTON_TOUR : state_machine.cpp
• WAIT_PERSON : state_machine.cpp