@startuml
skinparam sequenceMessageAlign center
skinparam ParticipantBackgroundColor #FFFF9F

autoactivate on
hide footbox

title Go into Stephen's Office

participant Interpreter as I
participant CommandFactory as CF
participant ":CommandFactory" as CFO
participant ":Command" as C
participant GameState as GS
participant ":GameState" as GSO
participant "backHallway:Room" as backHallway
participant "exits:ArrayList" as bHexits
participant "e1:Exit" as e1
participant "e2:Exit" as e2
participant "office:Room" as office
participant "exits2:ArrayList" as oexits
participant "e3:Exit" as e3

I -> CF : instance()
create CFO
CF -> CFO : new CommandFactory()
return
return theInstance

I -> CFO : parse("s")
create C
CFO -> C : new Command("s")
return
return

I -> C : execute()
C -> GS : instance()
create GSO
GS -> GSO : new GameState()
return
return theInstance

C -> GSO : getAdventurersCurrentRoom()
return backHallway

C -> backHallway : leaveBy("s")
backHallway -> bHexits : size()
return 2
backHallway -> bHexits : get(0)
return e1
backHallway -> e1 : getDir()
return "w"
backHallway -> bHexits : get(1)
return e2
backHallway -> e2 : getDir()
return "s"
backHallway -> e2 : getDest()
return office
return office

C -> GSO : setAdventurersCurrentRoom(office)
return

C -> office : describe()

autoactivate off
office -> office : getName()
autoactivate on
office -> GS : instance()
return theInstance
office -> GSO : hasBeenVisited()
return false
office -> GSO : visit(this)
return
autoactivate off
office -> office : getDesc()
autoactivate on

office -> oexits : size()
return 1
office -> oexits : get(0)
return e3
office -> e3 : describe()
return "You can go n to Back Hallway."
return "Stephen's Office....This is a geeky room...You can go n to Back Hallway."

return "Stephen's Office....This is a geeky room...You can go n to Back Hallway."



@enduml