turf

Any floor or wall. What makes up the station and the rest of the map.

Var Details

archived_cycle

used to determine whether we should archive

assigned_oranges_ear

what /mob/oranges_ear instance is already assigned to us as there should only ever be one. used for guaranteeing there is only one oranges_ear per turf when assigned, speeds up view() iteration

atmos_adjacent_turfs

list of turfs adjacent to us that air can flow onto

atmos_supeconductivity

bitfield of dirs in which we are superconducitng

directional_opacity

Which directions does this turf block the vision of, taking into account both the turf's opacity and the movable opacity_sources.

dynamic_lumcount

Lumcount added by sources other than lighting datum objects, such as the overlay lighting component.

fish_source

The typepath we use for lazy fishing on turfs, to save on world init time.

fixed_underlay

Icon-smoothing variable to map a diagonal wall corner with a fixed underlay.

force_no_gravity

whether or not this turf forces movables on it to have no gravity (unless they themselves have forced gravity)

heat_capacity

Amount of heat necessary to activate some atmos processes (there is a weird usage of this var because is compared directly to the temperature instead of heat energy)

holodeck_compatible

the holodeck can load onto this turf if TRUE

in_contents_of

For the area_contents list unit test Allows us to know our area without needing to preassign it Sorry for the mess

inherent_explosive_resistance

How much explosive resistance this turf is providing to itself Defaults to -1, interpreted as initial(explosive_resistance) This is an optimization to prevent turfs from needing to set these on init This would either be expensive, or impossible to manage. Let's just avoid it yes? Never directly access this, use get_explosive_block() instead

initial_gas_mix

used for mapping and for breathing while in walls (because that's a thing that needs to be accounted for...) string parsed by /datum/gas/proc/copy_from_turf approximation of MOLES_O2STANDARD and MOLES_N2STANDARD pending byond allowing constant expressions to be embedded in constant strings If someone will place 0 of some gas there, SHIT WILL BREAK. Do not do that.

lattice_underneath

If there is a lattice underneat this turf. Used for the attempt_lattice_replacement proc to determine if it should place lattice.

lighting_corner_NE

Lighting Corner datums.

lighting_object

Our lighting object.

max_fire_temperature_sustained

The max temperature of the fire which it was subjected to, determines the melting point of turf

opacity_sources

Lazylist of movable atoms providing opacity sources.

overfloor_placed

If there's a tile over a basic floor that can be ripped out

pathing_pass_method

How pathing algorithm will check if this turf is passable by itself (not including content checks). By default it's just density check. WARNING: Currently to use a density shortcircuiting this does not support dense turfs with special allow through function

rcd_memory

If this turf contained an RCD'able object (or IS one, for walls) but is now destroyed, this will preserve the value. See _DEFINES/construction.dm for RCD_MEMORY*.

rust_resistance

This turf's resistance to getting rusted

space_lit

Bool, whether this turf will always be illuminated no matter what area it is in Makes it look blue, be warned

temperature_archived

Archived version of the temperature on a turf

thermal_conductivities

All currently stored conductivities changes

thermal_conductivity

used for temperature calculations in superconduction

to_be_destroyed

Used for fire, if a melting temperature was reached, it will be destroyed

turf_flags

Turf bitflags, see code/__DEFINES/flags.dm

underfloor_accessibility

How accessible underfloor pieces such as wires, pipes, etc are on this turf. Can be HIDDEN, VISIBLE, or INTERACTABLE.

Proc Details

Initalize_Atmos

Initializes our adjacent turfs. If you want to avoid this, do not override it, instead set init_air to FALSE

Initialize

Turf Initialize

Doesn't call parent, see /atom/proc/Initialize Please note, space tiles do not run this code. This is done because it's called so often that any extra code just slows things down too much If you add something relevant here add it there too /turf/open/space/Initialize

LinkBlockedWithAccess

For seeing if we can actually move between 2 given turfs while accounting for our access and the requester's pass_flags

Assumes destinantion turf is non-dense - check and shortcircuit in code invoking this proc to avoid overhead. Makes some other assumptions, such as assuming that unless declared, non dense objects will not block movement. It's fragile, but this is VERY much the most expensive part of pathing, so it'd better be fast

Arguments:

• destination_turf - Where are we going from where we are?
• pass_info - Holds all the info about what this path attempt can go through

ScrapeAway

Take off the top layer turf and replace it with the next baseturf down

_clear_signal_refs

WARNING WARNING Turfs DO NOT lose their signals when they get replaced, REMEMBER THIS It's possible because turfs are fucked, and if you have one in a list and it's replaced with another one, the list ref points to the new turf We do it because moving signals over was needlessly expensive, and bloated a very commonly used bit of code

add_lazy_fishing

the following are some fishing-related optimizations to shave off as much time we spend implementing the fishing as possible, even if that means hackier code, because we've hundreds of turfs like lava, water etc every round,

add_opacity_source

Proc to add movable sources of opacity on the turf and let it handle lighting code.

air_update_turf

A helper proc for dealing with atmos changes

Ok so this thing is pretty much used as a catch all for all the situations someone might wanna change something About a turfs atmos. It's real clunky, and someone needs to clean it up, but not today. Arguments:

• update - Has the state of the structures in the world changed? If so, update our adjacent atmos turf list, if not, don't.
• remove - Are you removing an active turf (Read wall), or adding one

attempt_lattice_replacement

Attempts to replace a tile with lattice. Amount is the amount of tiles to scrape away.

baseturf_at_depth

Returns the baseturf at the given depth. For example, baseturf_at_depth(1) will give the baseturf that would show up when scraping once.

can_cross_safely

Returns whether it is safe for an atom to move across this turf

change_area

Call to move a turf from its current area to a new one

conductivity_directions

SUPERCONDUCTIVITY ALLLLLLLLLLLLLLLLLLLLRIGHT HERE WE GOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO

Read the code for more details, but first, a brief concept discussion/area

Our goal here is to "model" heat moving through solid objects, so walls, windows, and sometimes doors. We do this by heating up the floor itself with the heat of the gasmix ontop of it, this is what the coeffs are for here, they slow that movement Then we go through the process below.

If an active turf is fitting, we add it to processing, conduct with any covered tiles, (read windows and sometimes walls) Then we space some of our heat, and think about if we should stop conducting.

consider_superconductivity

Should we attempt to superconduct?

count_baseturfs

Returns the total number of baseturfs

create_gas_mixture

//////////////GAS MIXTURE PROCS/////////////////// Copies all gas info from the turf into a new gas_mixture, along with our temperature Returns the created gas_mixture

depth_to_find_baseturf

Tries to find the given type in baseturfs. If found, returns how deep it is for use in other baseturf procs, or null if it cannot be found. For example, this number can be passed into ScrapeAway to scrape everything until that point.

expose_reagents

Handles exposing a turf to reagents.

fromShuttleMove

Base procs

get_atmos_adjacent_turfs

returns a list of adjacent turfs that can share air with this one. alldir includes adjacent diagonal tiles that can share air with both of the related adjacent cardinal tiles

get_explosive_block

Wrapper around inherent_explosive_resistance We assume this proc is cold, so we can move the "what is our block" into it

init_immediate_calculate_adjacent_turfs

This proc is a more deeply optimized version of immediate_calculate_adjacent_turfs It contains dumbshit, and also stuff I just can't do at runtime If you're not editing behavior, just read that proc. It's less bad

insert_baseturf

Inserts a baseturf at the given level. "Level" here doesn't mean depth. For example, insert_baseturf(2, /turf/open/floor/plating) will make it so the 2nd to last turf in the list is plating. This is different from depth, since depth is the level from the top.

is_blocked_turf

Check whether the specified turf is blocked by something dense inside it with respect to a specific atom.

Returns truthy value TURF_BLOCKED_TURF_DENSE if the turf is blocked because the turf itself is dense. Returns truthy value TURF_BLOCKED_CONTENT_DENSE if one of the turf's contents is dense and would block a source atom's movement. Returns falsey value TURF_NOT_BLOCKED if the turf is not blocked.

Arguments:

• exclude_mobs - If TRUE, ignores dense mobs on the turf.
• source_atom - If this is not null, will check whether any contents on the turf can block this atom specifically. Also ignores itself on the turf.
• ignore_atoms - Check will ignore any atoms in this list. Useful to prevent an atom from blocking itself on the turf.
• type_list - are we checking for types of atoms to ignore and not physical atoms

is_blocked_turf_ignore_climbable

Checks whether the specified turf is blocked by something dense inside it, but ignores anything with the climbable trait

Works similar to is_blocked_turf(), but ignores climbables and has less options. Primarily added for jaunting checks

is_nearby_planetary_atmos

Runs through all adjacent open turfs and checks if any are planetary_atmos returns true if even one passes.

load_on_top

Places a turf on top - for map loading

neighbor_conduct_with_src

These two procs are a bit of a web, I belive in you

on_change_area

Allows for reactions to an area change without inherently requiring change_area() be called (I hate maploading)

place_on_bottom

Places the given turf on the bottom of the turf stack.

place_on_top

Places a turf at the top of the stack

radiate_to_spess

Radiate excess tile heat to space.

reachableAdjacentTurfs

Returns adjacent turfs to this turf that are reachable, in all cardinal directions

Arguments:

• requester: The movable, if one exists, being used for mobility checks to see what tiles it can reach
• access: A list that decides if we can gain access to doors that would otherwise block a turf
• simulated_only: Do we only worry about turfs with simulated atmos, most notably things that aren't space?
• no_id: When true, doors with public access will count as impassible

recalculate_directional_opacity

Calculate on which directions this turfs block view.

remove_baseturfs_from_typecache

Removes all baseturfs that are found in the given typecache.

remove_opacity_source

Proc to remove movable sources of opacity on the turf and let it handle lighting code.

replace_baseturf

Replaces all instances of needle_type in baseturfs with replacement_type

return_turf_delta_p

Returns the diffrence in pressure between a turf from surrounding turfs

rust_heretic_act

Check if the heretic is strong enough to rust this turf, and if so, rusts the turf with an added visual effect.

rust_turf

Override this to change behaviour when being rusted by a heretic

spawn_unique_cleanable

Creates a cleanable decal on a turf Use this if your decal is one of one, and thus we should not spawn it if it's there already Returns either the existing cleanable, the one we created, or null if we can't spawn on that turf

stack_below_baseturf

Places a baseturf below a searched for baseturf.

stack_ontop_of_baseturf

Places a baseturf ontop of a searched for baseturf.

transfer_area_lighting

Transfer the lighting of one area to another

zFall

Precipitates a movable (plus whatever buckled to it) to lower z levels if possible and then calls zImpact()

zImpact

Called each time the target falls down a z level possibly making their trajectory come to a halt. see __DEFINES/movement.dm.

zPassIn

If we'd allow anything to travel into us

zPassOut

If we'd allow anything to travel out of us