Editing SS13 for experienced programmers (section)

==== Variable types ====
[http://www.byond.com/members/?command=reference&path=var reference]

*[http://www.byond.com/members/?command=reference&path=datum datum] - ordinary object type (class in java)
*[http://www.byond.com/members/?command=reference&path=atom atom] - atom derives into obj, turf, mob and area
*[http://www.byond.com/members/?command=reference&path=turf turf] - tiles which make up the floors, walls and space on SS13
*[http://www.byond.com/members/?command=reference&path=area area] - areas are grouped locations. They combine many turfs and it gives some common properties. Power, atmosphere, etc. are determined by areas
*[http://www.byond.com/members/?command=reference&path=mob mob] - an object with life, be it game controlled or player controlled.
*[http://www.byond.com/members/?command=reference&path=obj obj] - objects which can be placed on the map
*[http://www.byond.com/members/?command=reference&path=client client] - a new client object is created for each connected player
*[http://www.byond.com/members/?command=reference&path=list list] - a list of elements. The first element in a list called L is L[1]
*[http://www.byond.com/members/?command=reference&path=world world] - this is a variable where some global variables for the entire world can be set. World's contents var contains all atoms currently in the game world.