[Kethrios]

I said Up+1 and Down-1 (and Down-1 Down -2 ; Up+1 Up+2) but it means this :

Up+1 Down-1 : Player can Go up (Roof) and Down (Garage) -> He is at the 1st floor.
Down-1 Down-2 : The player can go to the 1st floor, or the garage --> He is on the roof.
Up+1 Up+2 : The player can go to the 1st floor or the the roof --> He is at the garage.

I said up or down in order to avoid sayin 1st floor, and garage everytime, but if it's not clear, I can edit to make it more understandable.