Редактирование: Understanding SS13 code (раздел)

==== Included variables ====

Variables which are built into byond itself and are not defined anywhere in code:
<br>[http://www.byond.com/members/?command=reference&path=atom%2Fvar Atom vars]
<br>[http://www.byond.com/members/?command=reference&path=client%2Fvar Client vars]
<br>[http://www.byond.com/members/?command=reference&path=datum%2Fvar Datum vars]
<br>[http://www.byond.com/members/?command=reference&path=mob%2Fvar Mob vars]

===== Direction (dir) var =====
[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fdir reference]

'''North:''' 1<br>
'''South:''' 2<br>
'''East:''' 4<br>
'''West:''' 8<br>
'''Northeast:''' 5 (1 + 4)<br>
'''Southeast:''' 6 (2 + 4)<br>
'''Northwest:''' 9 (1 + 8)<br>
'''Southwest:''' 10 (2 + 8)<br>

They are numbered like this because dir uses the 'bitflag' methodology. You can read more about bitflags [[Binary_flags|here.]]  It is defined in binary, so...

'''0001''' is north<br>
'''0010''' is south<br>
'''0100''' is east<br>
'''1000''' is west

Combining these numbers yields north-east (0101), north-west (1001), south-east (0110) and south-west (1010). Tho other combinations (east-west(1100), north-south (0011), north-east-west (1101) and such) are possible for special uses. Smoothwall code is an example.

===== Atom vars =====

These apply to all /obj, /turf, /area, /mob -type objects.

'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fcontents Contents]: '''List of objects which are inserted into another object. (plasma tanks in radiation arrays, ore in the smelter, etc.)
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fdensity Density]: '''0/1 - 0 means your mob can pass through (or over), 1 means you cannot
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fdesc Desc]: '''string - Description, displayed upon examine
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fdir Dir]: '''1-10 - the direction the object is facing
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Ficon Icon]: '''The .dmi file which contains the sprite for the icon
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Ficon_state Icon_state]: '''The name of the sprite in the file from Icon
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Foverlays Overlays]: '''A list of images which are overlayed on the item.
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Flayer Layer]: '''If two objects are on the same tile and one has a higher layer number than the other, the one with the higher will be shown as above the one with the lower
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Floc Loc]: '''The X,Y,Z positioning of an item
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fluminosity Luminosity]: '''How much does it glow?
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fname Name]: '''The name, displayed when you hover your mouse over the item
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fopacity Opacity]: '''Can you see through it?
<br>'''[http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fpixel_x Pixel_x], [http://www.byond.com/members/?command=reference&path=atom%2Fvar%2Fpixel_y pixel_y]: '''Set if the item on the map is nudged a few pixels to either side. Used with APC's, Request Consoles, Fire alarms, etc.
<br>'''[http://www.byond.com/members/?command=reference&path=datum%2Fvar%2Ftype Type]: '''Type is the path of the object. A coin would have it's type variable set to: /obj/item/weapon/coin