Locks and Keys
Locks here.
and keys are mostly self explanatory. The locks will be chained to the doors, so their art needs to be drawn with that in mind.
Dimensions
placeholderWidth: 1 tile, Height: 2 tiles (Lock) [the height is for the chain to cover the door]
Mechanics
placeholderThis is an alternative to having a button to open a door.
Sprites
placeholderLock and Chain for vertical doors (chain will cover the door)

