code/__DEFINES/atmospherics/atmos_core.dm

Define Details

ARCHIVE

Archived version of MOLES

ATMOS_PASS_DENSITY

just check density

ATMOS_PASS_PROC

ask can_atmos_pass()

ATMOS_PRESSURE_APPROXIMATION_ITERATIONS

How many maximum iterations do we allow the Newton-Raphson approximation for gas pressure to do.

ATMOS_PRESSURE_ERROR_TOLERANCE

We deal with big numbers and a lot of math, things are bound to get imprecise. Take this traveller.

CELL_VOLUME

liters in a cell

COLD_FIRE_SPREAD_RADIOSITY_SCALE

Multiplier for the temperature shared to other turfs

COLD_ROOM_TEMP

-14C - Temperature used for kitchen cold room, medical freezer, etc.

EXCITED_GROUP_BREAKDOWN_CYCLES

Some further context on breakdown. Unlike dismantle, the breakdown ticker doesn't reset itself when a tile is added This is because we cannot expect maps to have small spaces, so we need to even ourselves out often We do this to avoid equalizing a large space in one tick, with some significant amount of say heat diff This way large areas don't suddenly all become cold at once, it acts more like a wave

Because of this and the behavior of share(), the breakdown cycles value can be tweaked directly to effect how fast we want gas to move number of FULL air controller ticks before an excited group breaks down (averages gas contents across turfs)

EXCITED_GROUP_DISMANTLE_CYCLES

number of FULL air controller ticks before an excited group dismantles and removes its turfs from active

FACTOR_GAS_VISIBLE_MAX

moles_visible * FACTOR_GAS_VISIBLE_MAX = Moles after which gas is at maximum visibility

FIRE_GROWTH_RATE

Helper for small fires to grow

FIRE_MINIMUM_TEMPERATURE_TO_EXIST

Minimum temperature for fire to exist on a turf (100 °C or 373 K)

FIRE_MINIMUM_TEMPERATURE_TO_SPREAD

Minimum temperature for fire to move to the next turf (150 °C or 433 K)

FIRE_SPREAD_RADIOSITY_SCALE

Multiplier for the temperature shared to other turfs

FUSION_INSTABILITY_ENDOTHERMALITY

Maximum instability before the reaction goes endothermic

FUSION_MAXIMUM_TEMPERATURE

Maximum reachable fusion temperature

GAS_META

All gas related variables

GAS_TYPE_COUNT

Types of gases (based on gaslist_cache)

HEAT_CAPACITY_VACUUM

a hack to help make vacuums "cold", sacrificing realism for gameplay

KILL_EXCITED

Disable excited group

MAKE_ACTIVE

Set the turf to be activated on the next calculation

MAXIMUM_ERROR_GAS_REMOVAL

Maximum error caused by QUANTIZE when removing gas (roughly, in reality around 2 * MOLAR_ACCURACY less)

META_GAS_DANGER

Let the air alarm know if the gas is dangerous

META_GAS_DESC

Short description of the gas.

META_GAS_FUSION_POWER

Power of the gas when used in the current iteration of fusion

META_GAS_ID

Id of the gas for quick access

META_GAS_MOLES_VISIBLE

Amount of moles required of the gas to be visible

META_GAS_NAME

Name of the gas

META_GAS_OVERLAY

Overlay path of the gas, also setup the alpha based on the amount

META_GAS_SPECIFIC_HEAT

Gas specific heat per mole

MINIMUM_AIR_RATIO_TO_MOVE

Minimum ratio of air that must move to/from a tile

MINIMUM_AIR_RATIO_TO_SUSPEND

Ratio of air that must move to/from a tile to reset group processing

MINIMUM_AIR_TO_SUSPEND

Minimum amount of air that has to move before a group processing can be suspended (Round about 10)

MINIMUM_HEAT_CAPACITY

I feel the need to document what happens here. Basically this is used catch rounding errors, and make gas go away in small portions. People have raised it to higher levels in the past, do not do this. Consider this number a soft limit If you're making gasmixtures that have unexpected behavior related to this value, you're doing something wrong.

On an unrelated note this may cause a bug that creates negative gas, related to round(). When it has a second arg it will round up. So for instance round(0.5, 1) == 1. I've hardcoded a fix for this into share, by forcing the garbage collect. Any other attempts to fix it just killed atmos. I leave this to a greater man then I The minimum heat capacity of a gas

MINIMUM_MOLES_DELTA_TO_MOVE

Either this must be active (round about 0.1) //Might need to raise this a tad to better support space leaks. we'll see

MINIMUM_MOLE_COUNT

Minimum mole count of a gas

MINIMUM_TEMPERATURE_DELTA_TO_CONSIDER

Minimum temperature difference before the gas temperatures are just set to be equal

MINIMUM_TEMPERATURE_DELTA_TO_SUSPEND

Minimum temperature difference before group processing is suspended

MINIMUM_TEMPERATURE_FOR_SUPERCONDUCTION

Minimum temperature to continue superconduction once started

MINIMUM_TEMPERATURE_START_SUPERCONDUCTION

Minimum temperature to start doing superconduction calculations

MINIMUM_TEMPERATURE_TO_MOVE

or this (or both, obviously)

MOLAR_ACCURACY

Molar accuracy to round to

MOLES

Amount of total moles in said gas mixture

MOLES_CELLSTANDARD

moles in a 2.5 m^3 cell at 101.325 Pa and 20 degC (103 or so)

MOLES_GAS_VISIBLE

Moles in a standard cell after which gases are visible

MOLES_GAS_VISIBLE_STEP

Mole step for alpha updates. This means alpha can update at 0.25, 0.5, 0.75 and so on

MOLES_N2STANDARD

N2 standard value (79%)

MOLES_O2STANDARD

O2 standard value (21%)

M_CELL_WITH_RATIO

compared against for superconductivity

N2O_ANESTHETIC

N2O value for anesthetic canister

N2STANDARD

same but for nitrogen

NORMAL_TURF

Normal non-active turf

NO_REACTION

The gas mixture is not reacting

O2STANDARD

percentage of oxygen in a normal mixture of air

O2_ANESTHETIC

O2 value for anesthetic canister

ONE_ATMOSPHERE

kPa

REACTING

The gas mixture is reacting

R_IDEAL_GAS_EQUATION

kPaL/(Kmol)

STOP_REACTIONS

The gas mixture is able to stop all reactions

T0C

0degC

T20C

20degC

TCMB

-270.3degC

TOTAL_VISIBLE_STATES

The total visible states

WINDOW_HEAT_TRANSFER_COEFFICIENT

a hack for now