code/__DEFINES/flags.dm

ALL_CARDINALS	All the cardinal direction bitflags.
ON_BORDER_1	item has priority to check when entering or leaving
HEAR_1	This flag is what recursive_hear_check() uses to determine wether to add an item to the hearer list or not.
CHECK_RICOCHET_1	Projectiels will check ricochet on things impacted that have this.
HOLOGRAM_1	specifies that this atom is a hologram that isnt real
INITIALIZED_1	Whether /atom/Initialize(mapload) has already run for the object
ADMIN_SPAWNED_1	was this spawned by an admin? used for stat tracking stuff.
NODECONSTRUCT_1	For machines and structures that should not break into parts, eg, holodeck stuff
PREVENT_CLICK_UNDER_1	Prevent clicking things below it on the same turf eg. doors/ fulltile windows
IS_PLAYER_COLORABLE_1	Can players recolor this in-game via vendors (and maybe more if support is added)?
CAN_BE_DIRTY_1	If a turf can be made dirty at roundstart. This is also used in areas.
HTML_USE_INITAL_ICON_1	Should we use the initial icon for display? Mostly used by overlay only objects
CONDUCT_1	conducts electricity (metal etc.)
PREVENT_CONTENTS_EXPLOSION_1	should not get harmed if this gets caught by an explosion?
RAD_PROTECT_CONTENTS_1	should the contents of this atom be acted upon
RAD_NO_CONTAMINATE_1	should this object be allowed to be contaminated
RAD_CONTAIN_CONTENTS	Prevents most radiation on this turf from leaving it
IS_SPINNING_1	Is the thing currently spinning?
DECAL_INIT_UPDATE_EXPERIENCED_1	If this atom has experienced a decal element "init finished" sourced appearance update We use this to ensure stacked decals don't double up appearance updates for no rasin Flag as an optimization, don't make this a trait without profiling Yes I know this is a stupid flag, no you can't take him from me
NOJAUNT	If a turf cant be jaunted through.
UNUSED_RESERVATION_TURF	If a turf is an usused reservation turf awaiting assignment
RESERVATION_TURF	If a turf is a reserved turf
NO_LAVA_GEN	Blocks lava rivers being generated on the turf
NO_RUINS	Blocks ruins spawning on the turf
NO_RUST	Blocks this turf from being rusted
IS_SOLID	Is this turf is "solid". Space and lava aren't for instance
NO_CLEARING	This turf will never be cleared away by other objects on Initialize.
BLOBS_ALLOWED	If blobs can spawn there and if it counts towards their score.
CAVES_ALLOWED	If mining tunnel generation is allowed in this area
FLORA_ALLOWED	If flora are allowed to spawn in this area randomly through tunnel generation
MOB_SPAWN_ALLOWED	If mobs can be spawned by natural random generation
MEGAFAUNA_SPAWN_ALLOWED	If megafauna can be spawned by natural random generation
NOTELEPORT	Are you forbidden from teleporting to the area? (centcom, mobs, wizard, hand teleporter)
EVENT_PROTECTED	Protected from certain events
UPDATE_NAME	Update the atom's name
UPDATE_DESC	Update the atom's desc
UPDATE_ICON_STATE	Update the atom's icon state
UPDATE_OVERLAYS	Update the atom's overlays
UPDATE_GREYSCALE	Update the atom's greyscaling
UPDATE_SMOOTHING	Update the atom's smoothing. (More accurately, queue it for an update)
UPDATE_ICON	Update the atom's icon
PHASING	When moving, will Bump()/Cross()/Uncross() everything, but won't be stopped.
UPSIDE_DOWN	The mob is walking on the ceiling. Or is generally just, upside down.
MOVETYPES_NOT_TOUCHING_GROUND	Combination flag for movetypes which, for all intents and purposes, mean the mob is not touching the ground
FIRE_PROOF	100% immune to fire damage (but not necessarily to lava or heat)
UNACIDABLE	acid can't even appear on it, let alone melt it.
ACID_PROOF	acid stuck on it doesn't melt it.
INDESTRUCTIBLE	doesn't take damage
FREEZE_PROOF	can't be frozen
MOBILITY_MOVE	can move
MOBILITY_STAND	can, and is, standing up
MOBILITY_PICKUP	can pickup items
MOBILITY_USE	can hold and use items
MOBILITY_UI	can use interfaces like machinery
MOBILITY_STORAGE	can use storage item
MOBILITY_PULL	can pull things
ISDIAGONALDIR	Returns true if the dir is diagonal, false otherwise
NSCOMPONENT	True if the dir is north or south, false therwise
EWCOMPONENT	True if the dir is east/west, false otherwise
NSDIRFLIP	Flips the dir for north/south directions
EWDIRFLIP	Flips the dir for east/west directions
DIRFLIP	Turns the dir by 180 degrees
MAX_BITFLAG_DIGITS	33554431 (2^24 - 1) is the maximum value our bitflags can reach.
IGNORE_USER_LOC_CHANGE	Can do the action even if mob moves location
IGNORE_TARGET_LOC_CHANGE	Can do the action even if the target moves location
IGNORE_HELD_ITEM	Can do the action even if the item is no longer being held
IGNORE_INCAPACITATED	Can do the action even if the mob is incapacitated (ex. handcuffed)
IGNORE_SLOWDOWNS	Used to prevent important slowdowns from being abused by drugs like kronkaine
IGNORE_SKILL_DELAY	Used to keep the skill indicator icon without using the built-in delay modifier

Define Details

#define
ACID_PROOF

acid stuck on it doesn't melt it.

#define
ADMIN_SPAWNED_1

was this spawned by an admin? used for stat tracking stuff.

#define
ALL_CARDINALS

All the cardinal direction bitflags.

#define
BLOBS_ALLOWED

If blobs can spawn there and if it counts towards their score.

#define
CAN_BE_DIRTY_1

If a turf can be made dirty at roundstart. This is also used in areas.

#define
CAVES_ALLOWED

If mining tunnel generation is allowed in this area

#define
CHECK_RICOCHET_1

Projectiels will check ricochet on things impacted that have this.

#define
CONDUCT_1

conducts electricity (metal etc.)

#define
DECAL_INIT_UPDATE_EXPERIENCED_1

If this atom has experienced a decal element "init finished" sourced appearance update We use this to ensure stacked decals don't double up appearance updates for no rasin Flag as an optimization, don't make this a trait without profiling Yes I know this is a stupid flag, no you can't take him from me

#define
DIRFLIP
(d)

Turns the dir by 180 degrees

#define
EVENT_PROTECTED

Protected from certain events

#define
EWCOMPONENT
(d)

True if the dir is east/west, false otherwise

#define
EWDIRFLIP
(d)

Flips the dir for east/west directions

#define
FIRE_PROOF

100% immune to fire damage (but not necessarily to lava or heat)

#define
FLORA_ALLOWED

If flora are allowed to spawn in this area randomly through tunnel generation

#define
FREEZE_PROOF

can't be frozen

#define
HEAR_1

This flag is what recursive_hear_check() uses to determine wether to add an item to the hearer list or not.

#define
HOLOGRAM_1

specifies that this atom is a hologram that isnt real

#define
HTML_USE_INITAL_ICON_1

Should we use the initial icon for display? Mostly used by overlay only objects

#define
IGNORE_HELD_ITEM

Can do the action even if the item is no longer being held

#define
IGNORE_INCAPACITATED

Can do the action even if the mob is incapacitated (ex. handcuffed)

#define
IGNORE_SKILL_DELAY

Used to keep the skill indicator icon without using the built-in delay modifier

#define
IGNORE_SLOWDOWNS

Used to prevent important slowdowns from being abused by drugs like kronkaine

#define
IGNORE_TARGET_LOC_CHANGE

Can do the action even if the target moves location

#define
IGNORE_USER_LOC_CHANGE

Can do the action even if mob moves location

#define
INDESTRUCTIBLE

doesn't take damage

#define
INITIALIZED_1

Whether /atom/Initialize(mapload) has already run for the object

#define
ISDIAGONALDIR
(d)

Returns true if the dir is diagonal, false otherwise

#define
IS_PLAYER_COLORABLE_1

Can players recolor this in-game via vendors (and maybe more if support is added)?

#define
IS_SOLID

Is this turf is "solid". Space and lava aren't for instance

#define
IS_SPINNING_1

Is the thing currently spinning?

#define
MAX_BITFLAG_DIGITS

33554431 (2^24 - 1) is the maximum value our bitflags can reach.

#define
MEGAFAUNA_SPAWN_ALLOWED

If megafauna can be spawned by natural random generation

#define
MOBILITY_MOVE

can move

#define
MOBILITY_PICKUP

can pickup items

#define
MOBILITY_PULL

can pull things

#define
MOBILITY_STAND

can, and is, standing up

#define
MOBILITY_STORAGE

can use storage item

#define
MOBILITY_UI

can use interfaces like machinery

#define
MOBILITY_USE

can hold and use items

#define
MOB_SPAWN_ALLOWED

If mobs can be spawned by natural random generation

#define
MOVETYPES_NOT_TOUCHING_GROUND

Combination flag for movetypes which, for all intents and purposes, mean the mob is not touching the ground

#define
NODECONSTRUCT_1

For machines and structures that should not break into parts, eg, holodeck stuff

#define
NOJAUNT

If a turf cant be jaunted through.

#define
NOTELEPORT

Are you forbidden from teleporting to the area? (centcom, mobs, wizard, hand teleporter)

#define
NO_CLEARING

This turf will never be cleared away by other objects on Initialize.

#define
NO_LAVA_GEN

Blocks lava rivers being generated on the turf

#define
NO_RUINS

Blocks ruins spawning on the turf

#define
NO_RUST

Blocks this turf from being rusted

#define
NSCOMPONENT
(d)

True if the dir is north or south, false therwise

#define
NSDIRFLIP
(d)

Flips the dir for north/south directions

#define
ON_BORDER_1

item has priority to check when entering or leaving

#define
PHASING

When moving, will Bump()/Cross()/Uncross() everything, but won't be stopped.

#define
PREVENT_CLICK_UNDER_1

Prevent clicking things below it on the same turf eg. doors/ fulltile windows

#define
PREVENT_CONTENTS_EXPLOSION_1

should not get harmed if this gets caught by an explosion?

#define
RAD_CONTAIN_CONTENTS

Prevents most radiation on this turf from leaving it

#define
RAD_NO_CONTAMINATE_1

should this object be allowed to be contaminated

#define
RAD_PROTECT_CONTENTS_1

should the contents of this atom be acted upon

#define
RESERVATION_TURF

If a turf is a reserved turf

#define
UNACIDABLE

acid can't even appear on it, let alone melt it.

#define
UNUSED_RESERVATION_TURF

If a turf is an usused reservation turf awaiting assignment

#define
UPDATE_DESC

Update the atom's desc

#define
UPDATE_GREYSCALE

Update the atom's greyscaling

#define
UPDATE_ICON

Update the atom's icon

#define
UPDATE_ICON_STATE

Update the atom's icon state

#define
UPDATE_NAME

Update the atom's name

#define
UPDATE_OVERLAYS

Update the atom's overlays

#define
UPDATE_SMOOTHING

Update the atom's smoothing. (More accurately, queue it for an update)

#define
UPSIDE_DOWN

The mob is walking on the ceiling. Or is generally just, upside down.

code/__DEFINES/flags.dm

Define Details

#define ACID_PROOF

#define ADMIN_SPAWNED_1

#define ALL_CARDINALS

#define BLOBS_ALLOWED

#define CAN_BE_DIRTY_1

#define CAVES_ALLOWED

#define CHECK_RICOCHET_1

#define CONDUCT_1

#define DECAL_INIT_UPDATE_EXPERIENCED_1

#define DIRFLIP (d)

#define EVENT_PROTECTED

#define EWCOMPONENT (d)

#define EWDIRFLIP (d)

#define FIRE_PROOF

#define FLORA_ALLOWED

#define FREEZE_PROOF

#define HEAR_1

#define HOLOGRAM_1

#define HTML_USE_INITAL_ICON_1

#define IGNORE_HELD_ITEM

#define IGNORE_INCAPACITATED

#define IGNORE_SKILL_DELAY

#define IGNORE_SLOWDOWNS

#define IGNORE_TARGET_LOC_CHANGE

#define IGNORE_USER_LOC_CHANGE

#define INDESTRUCTIBLE

#define INITIALIZED_1

#define ISDIAGONALDIR (d)

#define IS_PLAYER_COLORABLE_1

#define IS_SOLID

#define IS_SPINNING_1

#define MAX_BITFLAG_DIGITS

#define MEGAFAUNA_SPAWN_ALLOWED

#define MOBILITY_MOVE

#define MOBILITY_PICKUP

#define MOBILITY_PULL

#define MOBILITY_STAND

#define MOBILITY_STORAGE

#define MOBILITY_UI

#define MOBILITY_USE

#define MOB_SPAWN_ALLOWED

#define MOVETYPES_NOT_TOUCHING_GROUND

#define NODECONSTRUCT_1

#define NOJAUNT

#define NOTELEPORT

#define NO_CLEARING

#define NO_LAVA_GEN

#define NO_RUINS

#define NO_RUST

#define NSCOMPONENT (d)

#define NSDIRFLIP (d)

#define ON_BORDER_1

#define PHASING

#define PREVENT_CLICK_UNDER_1

#define PREVENT_CONTENTS_EXPLOSION_1

#define RAD_CONTAIN_CONTENTS

#define RAD_NO_CONTAMINATE_1

#define RAD_PROTECT_CONTENTS_1

#define RESERVATION_TURF

#define UNACIDABLE

#define UNUSED_RESERVATION_TURF

#define UPDATE_DESC

#define UPDATE_GREYSCALE

#define UPDATE_ICON

#define UPDATE_ICON_STATE

#define UPDATE_NAME

#define UPDATE_OVERLAYS

#define UPDATE_SMOOTHING

#define UPSIDE_DOWN