atmospherics.dm

//ATMOS
//stuff you should probably leave well alone!
/// kPa*L/(K*mol)
#define R_IDEAL_GAS_EQUATION	8.31
/// kPa
#define ONE_ATMOSPHERE			101.325
/// -270.3degC
#define TCMB					2.7
/// -48.15degC
#define TCRYO					225
/// 0degC
#define T0C						273.15
/// 20degC
#define T20C					293.15

///moles in a 2.5 m^3 cell at 101.325 Pa and 20 degC
#define MOLES_CELLSTANDARD		(ONE_ATMOSPHERE*CELL_VOLUME/(T20C*R_IDEAL_GAS_EQUATION))
///compared against for superconductivity
#define M_CELL_WITH_RATIO		(MOLES_CELLSTANDARD * 0.005)
/// percentage of oxygen in a normal mixture of air
#define O2STANDARD				0.21
/// same but for nitrogen
#define N2STANDARD				0.79
/// O2 standard value (21%)
#define MOLES_O2STANDARD		(MOLES_CELLSTANDARD*O2STANDARD)
/// N2 standard value (79%)
#define MOLES_N2STANDARD		(MOLES_CELLSTANDARD*N2STANDARD)
/// liters in a cell
#define CELL_VOLUME				2500
/// liters in a normal breath
#define BREATH_VOLUME			0.5
/// Amount of air to take a from a tile
#define BREATH_PERCENTAGE		(BREATH_VOLUME/CELL_VOLUME)

//EXCITED GROUPS
/// number of FULL air controller ticks before an excited group breaks down (averages gas contents across turfs)
#define EXCITED_GROUP_BREAKDOWN_CYCLES				4
/// number of FULL air controller ticks before an excited group dismantles and removes its turfs from active
#define EXCITED_GROUP_DISMANTLE_CYCLES				16
/// Ratio of air that must move to/from a tile to reset group processing
#define MINIMUM_AIR_RATIO_TO_SUSPEND				0.1
/// Minimum ratio of air that must move to/from a tile
#define MINIMUM_AIR_RATIO_TO_MOVE					0.001
/// Minimum amount of air that has to move before a group processing can be suspended
#define MINIMUM_AIR_TO_SUSPEND						(MOLES_CELLSTANDARD*MINIMUM_AIR_RATIO_TO_SUSPEND)
/// Either this must be active
#define MINIMUM_MOLES_DELTA_TO_MOVE					(MOLES_CELLSTANDARD*MINIMUM_AIR_RATIO_TO_MOVE)
/// or this (or both, obviously)
#define MINIMUM_TEMPERATURE_TO_MOVE					(T20C+100)
/// Minimum temperature difference before group processing is suspended
#define MINIMUM_TEMPERATURE_DELTA_TO_SUSPEND		4
/// Minimum temperature difference before the gas temperatures are just set to be equal
#define MINIMUM_TEMPERATURE_DELTA_TO_CONSIDER		0.5
#define MINIMUM_TEMPERATURE_FOR_SUPERCONDUCTION		(T20C+10)
#define MINIMUM_TEMPERATURE_START_SUPERCONDUCTION	(T20C+200)

//HEAT TRANSFER COEFFICIENTS
//Must be between 0 and 1. Values closer to 1 equalize temperature faster
//Should not exceed 0.4 else strange heat flow occur
#define WALL_HEAT_TRANSFER_COEFFICIENT		0.0
#define OPEN_HEAT_TRANSFER_COEFFICIENT		0.4
/// a hack for now
#define WINDOW_HEAT_TRANSFER_COEFFICIENT	0.1	
/// a hack to help make vacuums "cold", sacrificing realism for gameplay
#define HEAT_CAPACITY_VACUUM				7000

//FIRE
#define FIRE_MINIMUM_TEMPERATURE_TO_SPREAD	(150+T0C)
#define FIRE_MINIMUM_TEMPERATURE_TO_EXIST	(100+T0C)
#define FIRE_SPREAD_RADIOSITY_SCALE			0.85
#define FIRE_GROWTH_RATE					40000	//For small fires
#define PLASMA_MINIMUM_BURN_TEMPERATURE		(100+T0C)
#define PLASMA_UPPER_TEMPERATURE			(1370+T0C)
#define PLASMA_OXYGEN_FULLBURN				10
#define HYDROGEN_MINIMUM_BURN_TEMPERATURE	(100+T0C)
#define HYDROGEN_UPPER_TEMPERATURE			(1370+T0C)
#define HYDROGEN_OXYGEN_FULLBURN			10

//COLD FIRE (this is used only for the freon-o2 reaction, there is no fire still)
#define COLD_FIRE_MAXIMUM_TEMPERATURE_TO_SPREAD	263 //fire will spread if the temperature is -10 °C
#define COLD_FIRE_MAXIMUM_TEMPERATURE_TO_EXIST	273 //fire will start if the temperature is 0 °C
#define COLD_FIRE_SPREAD_RADIOSITY_SCALE		0.95
#define COLD_FIRE_GROWTH_RATE					40000
#define FREON_MAXIMUM_BURN_TEMPERATURE			283
#define FREON_LOWER_TEMPERATURE					60 //minimum temperature allowed for the burn to go, we would have negative pressure otherwise
#define FREON_OXYGEN_FULLBURN					10

//GASES
#define MIN_TOXIC_GAS_DAMAGE				1
#define MAX_TOXIC_GAS_DAMAGE				10
/// Moles in a standard cell after which gases are visible
#define MOLES_GAS_VISIBLE					0.25

/// moles_visible * FACTOR_GAS_VISIBLE_MAX = Moles after which gas is at maximum visibility
#define FACTOR_GAS_VISIBLE_MAX				20
/// Mole step for alpha updates. This means alpha can update at 0.25, 0.5, 0.75 and so on
#define MOLES_GAS_VISIBLE_STEP				0.25

//REACTIONS
//return values for reactions (bitflags)
///The gas mixture is not reacting
#define NO_REACTION 0
///The gas mixture is reacting
#define REACTING 1
///The gas mixture is able to stop all reactions
#define STOP_REACTIONS 2

//Fusion
///Maximum instability before the reaction goes endothermic
#define FUSION_INSTABILITY_ENDOTHERMALITY_HFR 4
///Maximum reachable fusion temperature
#define FUSION_MAXIMUM_TEMPERATURE 1e8

// Pressure limits.
/// This determins at what pressure the ultra-high pressure red icon is displayed. (This one is set as a constant)
#define HAZARD_HIGH_PRESSURE				550	
/// This determins when the orange pressure icon is displayed (it is 0.7 * HAZARD_HIGH_PRESSURE)
#define WARNING_HIGH_PRESSURE				325
/// This is when the gray low pressure icon is displayed. (it is 2.5 * HAZARD_LOW_PRESSURE)
#define WARNING_LOW_PRESSURE				50
/// This is when the black ultra-low pressure icon is displayed. (This one is set as a constant)
#define HAZARD_LOW_PRESSURE					20

/// This is used in handle_temperature_damage() for humans, and in reagents that affect body temperature. Temperature damage is multiplied by this amount.
#define TEMPERATURE_DAMAGE_COEFFICIENT		1.5

/// The natural temperature for a body
#define BODYTEMP_NORMAL						310.15
/// This is the divisor which handles how much of the temperature difference between the current body temperature and 310.15K (optimal temperature) humans auto-regenerate each tick. The higher the number, the slower the recovery. This is applied each tick, so long as the mob is alive.
#define BODYTEMP_AUTORECOVERY_DIVISOR		11
/// Minimum amount of kelvin moved toward 310K per tick. So long as abs(310.15 - bodytemp) is more than 50.
#define BODYTEMP_AUTORECOVERY_MINIMUM		12
///Similar to the BODYTEMP_AUTORECOVERY_DIVISOR, but this is the divisor which is applied at the stage that follows autorecovery. This is the divisor which comes into play when the human's loc temperature is lower than their body temperature. Make it lower to lose bodytemp faster.
#define BODYTEMP_COLD_DIVISOR				6
/// Similar to the BODYTEMP_AUTORECOVERY_DIVISOR, but this is the divisor which is applied at the stage that follows autorecovery. This is the divisor which comes into play when the human's loc temperature is higher than their body temperature. Make it lower to gain bodytemp faster.
#define BODYTEMP_HEAT_DIVISOR				15
/// The maximum number of degrees that your body can cool in 1 tick, due to the environment, when in a cold area.
#define BODYTEMP_COOLING_MAX				-100
/// The maximum number of degrees that your body can heat up in 1 tick, due to the environment, when in a hot area.
#define BODYTEMP_HEATING_MAX				30

/// The limit the human body can take before it starts taking damage from heat.
#define BODYTEMP_HEAT_DAMAGE_LIMIT			(BODYTEMP_NORMAL + 50)
/// The limit the human body can take before it starts taking damage from coldness.
#define BODYTEMP_COLD_DAMAGE_LIMIT			(BODYTEMP_NORMAL - 50)


/// what min_cold_protection_temperature is set to for space-helmet quality headwear. MUST NOT BE 0.
#define SPACE_HELM_MIN_TEMP_PROTECT			2.0
/// Thermal insulation works both ways /Malkevin
#define SPACE_HELM_MAX_TEMP_PROTECT			1500
/// what min_cold_protection_temperature is set to for space-suit quality jumpsuits or suits. MUST NOT BE 0.
#define SPACE_SUIT_MIN_TEMP_PROTECT			2.0
#define SPACE_SUIT_MAX_TEMP_PROTECT			1500

/// Cold protection for firesuits
#define FIRE_SUIT_MIN_TEMP_PROTECT			60
/// what max_heat_protection_temperature is set to for firesuit quality suits. MUST NOT BE 0.
#define FIRE_SUIT_MAX_TEMP_PROTECT			30000
/// Cold protection for fire helmets
#define FIRE_HELM_MIN_TEMP_PROTECT			60
/// for fire helmet quality items (red and white hardhats)
#define FIRE_HELM_MAX_TEMP_PROTECT			30000

/// what max_heat_protection_temperature is set to for firesuit quality suits and helmets. MUST NOT BE 0.
#define FIRE_IMMUNITY_MAX_TEMP_PROTECT	35000

/// For normal helmets
#define HELMET_MIN_TEMP_PROTECT				160
/// For normal helmets
#define HELMET_MAX_TEMP_PROTECT				600
/// For armor
#define ARMOR_MIN_TEMP_PROTECT				160
/// For armor
#define ARMOR_MAX_TEMP_PROTECT				600

/// For some gloves (black and)
#define GLOVES_MIN_TEMP_PROTECT				2.0
/// For some gloves
#define GLOVES_MAX_TEMP_PROTECT				1500
/// For gloves
#define SHOES_MIN_TEMP_PROTECT				2.0
/// For gloves
#define SHOES_MAX_TEMP_PROTECT				1500

/// The amount of pressure damage someone takes is equal to (pressure / HAZARD_HIGH_PRESSURE)*PRESSURE_DAMAGE_COEFFICIENT, with the maximum of MAX_PRESSURE_DAMAGE
#define PRESSURE_DAMAGE_COEFFICIENT			4
#define MAX_HIGH_PRESSURE_DAMAGE			4
/// The amount of damage someone takes when in a low pressure area (The pressure threshold is so low that it doesn't make sense to do any calculations, so it just applies this flat value).
#define LOW_PRESSURE_DAMAGE					4

/// Humans are slowed by the difference between bodytemp and BODYTEMP_COLD_DAMAGE_LIMIT divided by this, bigger numbers mean faster, smaller means slower
#define COLD_SLOWDOWN_FACTOR				60

//PIPES
//Atmos pipe limits
/// (kPa) What pressure pumps and powered equipment max out at.
#define MAX_OUTPUT_PRESSURE					4500
/// (L/s) Maximum speed powered equipment can work at.
#define MAX_TRANSFER_RATE					200
/// How many percent of the contents that an overclocked volume pumps leak into the air
#define VOLUME_PUMP_LEAK_AMOUNT				0.1
//used for device_type vars
#define UNARY		1
#define BINARY 		2
#define TRINARY		3
#define QUATERNARY	4

//TANKS
/// temperature in kelvins at which a tank will start to melt
#define TANK_MELT_TEMPERATURE				1000000
/// Tank starts leaking
#define TANK_LEAK_PRESSURE					(30.*ONE_ATMOSPHERE)
/// Tank spills all contents into atmosphere
#define TANK_RUPTURE_PRESSURE				(35.*ONE_ATMOSPHERE)
/// Boom 3x3 base explosion
#define TANK_FRAGMENT_PRESSURE				(40.*ONE_ATMOSPHERE)
/// +1 for each SCALE kPa aboe threshold
#define TANK_FRAGMENT_SCALE	    			(6.*ONE_ATMOSPHERE)
#define TANK_MAX_RELEASE_PRESSURE 			(ONE_ATMOSPHERE*3)
#define TANK_MIN_RELEASE_PRESSURE 			0
#define TANK_DEFAULT_RELEASE_PRESSURE 		17

//CANATMOSPASS
#define ATMOS_PASS_YES 1
#define ATMOS_PASS_NO 0
/// ask can_atmos_pass()
#define ATMOS_PASS_PROC -1
/// just check density
#define ATMOS_PASS_DENSITY -2

#define CANATMOSPASS(A, O, V) ( A.can_atmos_pass == ATMOS_PASS_PROC ? A.can_atmos_pass(O, V) : ( A.can_atmos_pass == ATMOS_PASS_DENSITY ? !A.density : A.can_atmos_pass ) )

#ifdef TESTING
GLOBAL_LIST_INIT(atmos_adjacent_savings, list(0,0))
#define CALCULATE_ADJACENT_TURFS(T, state) if (SSair.adjacent_rebuild[T]) { GLOB.atmos_adjacent_savings[1] += 1 } else { GLOB.atmos_adjacent_savings[2] += 1; SSair.adjacent_rebuild[T] = state}
#else
#define CALCULATE_ADJACENT_TURFS(T, state) SSair.adjacent_rebuild[T] = state
#endif

//If you're doing spreading things related to atmos, DO NOT USE CANATMOSPASS, IT IS NOT CHEAP. use this instead, the info is cached after all. it's tweaked just a bit to allow for circular checks
#define TURFS_CAN_SHARE(T1, T2) (LAZYACCESS(T2.atmos_adjacent_turfs, T1) || LAZYLEN(T1.atmos_adjacent_turfs & T2.atmos_adjacent_turfs))
//Use this to see if a turf is fully blocked or not, think windows or firelocks. Fails with 1x1 non full tile windows, but it's not worth the cost.
#define TURF_SHARES(T) (LAZYLEN(T.atmos_adjacent_turfs))


//Adjacent turf related defines, they dictate what to do with a turf once it's been recalculated
//Used as "state" in CALCULATE_ADJACENT_TURFS
///Normal non-active turf
#define NORMAL_TURF 1
///Set the turf to be activated on the next calculation
#define MAKE_ACTIVE 2
///Disable excited group
#define KILL_EXCITED 3

///Used to define the temperature of a tile, arg is the temperature it should be at. Should always be put at the end of the atmos list.
///This is solely to be used after compile-time.
#define TURF_TEMPERATURE(temperature) "TEMP=[temperature]"

//OPEN TURF ATMOS
/// the default air mix that open turfs spawn
#define OPENTURF_DEFAULT_ATMOS		"o2=22;n2=82;TEMP=293.15"
/// -193,15°C telecommunications. also used for xenobiology slime killrooms
#define TCOMMS_ATMOS				"n2=100;TEMP=80"
/// space
#define AIRLESS_ATMOS				"TEMP=2.7"
/// -93.15°C snow and ice turfs
#define FROZEN_ATMOS				"o2=22;n2=82;TEMP=180"
/// -80°C kitchen coldroom; higher amount of mol to reach about 101.3 kpA
#define KITCHEN_COLDROOM_ATMOS		"o2=33;n2=124;TEMP=193.15"
/// used in the holodeck burn test program
#define BURNMIX_ATMOS				"o2=2500;plasma=5000;TEMP=370"
///-153.15°C plasma air, used for burning people.
#define BURNING_COLD 				"o2=0;n2=82;plasma=24;TEMP=120"

//ATMOSPHERICS DEPARTMENT GAS TANK TURFS
#define ATMOS_TANK_N2O				"n2o=6000;TEMP=293.15"
#define ATMOS_TANK_CO2				"co2=50000;TEMP=293.15"
#define ATMOS_TANK_PLASMA			"plasma=70000;TEMP=293.15"
#define ATMOS_TANK_O2				"o2=100000;TEMP=293.15"
#define ATMOS_TANK_N2				"n2=100000;TEMP=293.15"
#define ATMOS_TANK_BZ				"bz=100000;TEMP=293.15"
#define ATMOS_TANK_FREON			"freon=100000;TEMP=293.15"
#define ATMOS_TANK_HALON			"halon=100000;TEMP=293.15"
#define ATMOS_TANK_HEALIUM			"healium=100000;TEMP=293.15"
#define ATMOS_TANK_H2				"hydrogen=100000;TEMP=293.15"
#define ATMOS_TANK_HYPERNOBLIUM		"nob=100000;TEMP=293.15"
#define ATMOS_TANK_MIASMA			"miasma=100000;TEMP=293.15"
#define ATMOS_TANK_NITRIUM "nitrium=100000;TEMP=293.15"
#define ATMOS_TANK_PLUOXIUM			"pluox=100000;TEMP=293.15"
#define ATMOS_TANK_PLUONIUM	"pluonium=100000;TEMP=293.15"
#define ATMOS_TANK_TRITIUM			"tritium=100000;TEMP=293.15"
#define ATMOS_TANK_H2O				"water_vapor=100000;TEMP=293.15"
#define ATMOS_TANK_ZAUKER			"zauker=100000;TEMP=293.15"
#define ATMOS_TANK_ANTINOBLIUM "antinoblium=100000;TEMP=293.15"
#define ATMOS_TANK_AIRMIX			"o2=2644;n2=10580;TEMP=293.15"

//LAVALAND
/// what pressure you have to be under to increase the effect of equipment meant for lavaland
#define LAVALAND_EQUIPMENT_EFFECT_PRESSURE 50

//PLANETARY ATMOS MIXES
#define LAVALAND_DEFAULT_ATMOS "o2=14;n2=23;TEMP=300"
#define ICEMOON_DEFAULT_ATMOS "o2=14;n2=23;TEMP=180"
#define JUNGLELAND_DEFAULT_ATMOS "o2=44;n2=164;TEMP=300" //yogs edit
#define OCEAN_DEFAULT_ATMOS "o2=10;co2=10;TEMP=293.15"

//ATMOSIA GAS MONITOR TAGS
#define ATMOS_GAS_MONITOR_INPUT_O2 "o2_in"
#define ATMOS_GAS_MONITOR_OUTPUT_O2 "o2_out"
#define ATMOS_GAS_MONITOR_SENSOR_O2 "o2_sensor"

#define ATMOS_GAS_MONITOR_INPUT_TOX "tox_in"
#define ATMOS_GAS_MONITOR_OUTPUT_TOX "tox_out"
#define ATMOS_GAS_MONITOR_SENSOR_TOX "tox_sensor"

#define ATMOS_GAS_MONITOR_INPUT_AIR "air_in"
#define ATMOS_GAS_MONITOR_OUTPUT_AIR "air_out"
#define ATMOS_GAS_MONITOR_SENSOR_AIR "air_sensor"

#define ATMOS_GAS_MONITOR_INPUT_MIX "mix_in"
#define ATMOS_GAS_MONITOR_OUTPUT_MIX "mix_out"
#define ATMOS_GAS_MONITOR_SENSOR_MIX "mix_sensor"

#define ATMOS_GAS_MONITOR_INPUT_N2O "n2o_in"
#define ATMOS_GAS_MONITOR_OUTPUT_N2O "n2o_out"
#define ATMOS_GAS_MONITOR_SENSOR_N2O "n2o_sensor"

#define ATMOS_GAS_MONITOR_INPUT_N2 "n2_in"
#define ATMOS_GAS_MONITOR_OUTPUT_N2 "n2_out"
#define ATMOS_GAS_MONITOR_SENSOR_N2 "n2_sensor"

#define ATMOS_GAS_MONITOR_INPUT_CO2 "co2_in"
#define ATMOS_GAS_MONITOR_OUTPUT_CO2 "co2_out"
#define ATMOS_GAS_MONITOR_SENSOR_CO2 "co2_sensor"

#define ATMOS_GAS_MONITOR_INPUT_BZ "bz_in"
#define ATMOS_GAS_MONITOR_OUTPUT_BZ "bz_out"
#define ATMOS_GAS_MONITOR_SENSOR_BZ "bz_sensor"

#define ATMOS_GAS_MONITOR_INPUT_FREON "freon_in"
#define ATMOS_GAS_MONITOR_OUTPUT_FREON "freon_out"
#define ATMOS_GAS_MONITOR_SENSOR_FREON "freon_sensor"

#define ATMOS_GAS_MONITOR_INPUT_HALON "halon_in"
#define ATMOS_GAS_MONITOR_OUTPUT_HALON "halon_out"
#define ATMOS_GAS_MONITOR_SENSOR_HALON "halon_sensor"

#define ATMOS_GAS_MONITOR_INPUT_HEALIUM "healium_in"
#define ATMOS_GAS_MONITOR_OUTPUT_HEALIUM "healium_out"
#define ATMOS_GAS_MONITOR_SENSOR_HEALIUM "healium_sensor"

#define ATMOS_GAS_MONITOR_INPUT_H2 "h2_in"
#define ATMOS_GAS_MONITOR_OUTPUT_H2 "h2_out"
#define ATMOS_GAS_MONITOR_SENSOR_H2 "h2_sensor"

#define ATMOS_GAS_MONITOR_INPUT_HYPERNOBLIUM "hypernoblium_in"
#define ATMOS_GAS_MONITOR_OUTPUT_HYPERNOBLIUM "hypernoblium_out"
#define ATMOS_GAS_MONITOR_SENSOR_HYPERNOBLIUM "hypernoblium_sensor"

#define ATMOS_GAS_MONITOR_INPUT_MIASMA "miasma_in"
#define ATMOS_GAS_MONITOR_OUTPUT_MIASMA "miasma_out"
#define ATMOS_GAS_MONITOR_SENSOR_MIASMA "miasma_sensor"

#define ATMOS_GAS_MONITOR_INPUT_NITRIUM "nitrium_in"
#define ATMOS_GAS_MONITOR_OUTPUT_NITRIUM "nitrium_out"
#define ATMOS_GAS_MONITOR_SENSOR_NITRIUM "nitrium_sensor"

#define ATMOS_GAS_MONITOR_INPUT_PLUOXIUM "pluoxium_in"
#define ATMOS_GAS_MONITOR_OUTPUT_PLUOXIUM "pluoxium_out"
#define ATMOS_GAS_MONITOR_SENSOR_PLUOXIUM "pluoxium_sensor"

#define ATMOS_GAS_MONITOR_INPUT_pluonium "proto-nitrate_in"
#define ATMOS_GAS_MONITOR_OUTPUT_pluonium "proto-nitrate_out"
#define ATMOS_GAS_MONITOR_SENSOR_pluonium "proto-nitrate_sensor"

#define ATMOS_GAS_MONITOR_INPUT_TRITIUM "tritium_in"
#define ATMOS_GAS_MONITOR_OUTPUT_TRITIUM "tritium_out"
#define ATMOS_GAS_MONITOR_SENSOR_TRITIUM "tritium_sensor"

#define ATMOS_GAS_MONITOR_INPUT_H2O "h2o_in"
#define ATMOS_GAS_MONITOR_OUTPUT_H2O "h2o_out"
#define ATMOS_GAS_MONITOR_SENSOR_H2O "h2o_sensor"

#define ATMOS_GAS_MONITOR_INPUT_ZAUKER "zauker_in"
#define ATMOS_GAS_MONITOR_OUTPUT_ZAUKER "zauker_out"
#define ATMOS_GAS_MONITOR_SENSOR_ZAUKER "zauker_sensor"

#define ATMOS_GAS_MONITOR_INPUT_ANTINOBLIUM "antinoblium_in"
#define ATMOS_GAS_MONITOR_OUTPUT_ANTINOBLIUM "antinoblium_out"
#define ATMOS_GAS_MONITOR_SENSOR_ANTINOBLIUM "antinoblium_sensor"

#define ATMOS_GAS_MONITOR_INPUT_INCINERATOR "incinerator_in"
#define ATMOS_GAS_MONITOR_OUTPUT_INCINERATOR "incinerator_out"
#define ATMOS_GAS_MONITOR_SENSOR_INCINERATOR "incinerator_sensor"

#define ATMOS_GAS_MONITOR_INPUT_TOXINS_LAB "toxinslab_in"
#define ATMOS_GAS_MONITOR_OUTPUT_TOXINS_LAB "toxinslab_out"
#define ATMOS_GAS_MONITOR_SENSOR_TOXINS_LAB "toxinslab_sensor"

#define ATMOS_GAS_MONITOR_LOOP_DISTRIBUTION "distro-loop_meter"
#define ATMOS_GAS_MONITOR_LOOP_ATMOS_WASTE "atmos-waste_loop_meter"

#define ATMOS_GAS_MONITOR_WASTE_ENGINE "engine-waste_out"
#define ATMOS_GAS_MONITOR_WASTE_ATMOS "atmos-waste_out"

//AIRLOCK CONTROLLER TAGS

//RnD toxins burn chamber
#define INCINERATOR_TOXMIX_IGNITER 				"toxmix_igniter"
#define INCINERATOR_TOXMIX_VENT 				"toxmix_vent"
#define INCINERATOR_TOXMIX_DP_VENTPUMP			"toxmix_airlock_pump"
#define INCINERATOR_TOXMIX_AIRLOCK_SENSOR 		"toxmix_airlock_sensor"
#define INCINERATOR_TOXMIX_AIRLOCK_CONTROLLER 	"toxmix_airlock_controller"
#define INCINERATOR_TOXMIX_AIRLOCK_INTERIOR 	"toxmix_airlock_interior"
#define INCINERATOR_TOXMIX_AIRLOCK_EXTERIOR 	"toxmix_airlock_exterior"

//Atmospherics/maintenance incinerator
#define INCINERATOR_ATMOS_IGNITER 				"atmos_incinerator_igniter"
#define INCINERATOR_ATMOS_MAINVENT 				"atmos_incinerator_mainvent"
#define INCINERATOR_ATMOS_AUXVENT 				"atmos_incinerator_auxvent"
#define INCINERATOR_ATMOS_DP_VENTPUMP			"atmos_incinerator_airlock_pump"
#define INCINERATOR_ATMOS_AIRLOCK_SENSOR 		"atmos_incinerator_airlock_sensor"
#define INCINERATOR_ATMOS_AIRLOCK_CONTROLLER	"atmos_incinerator_airlock_controller"
#define INCINERATOR_ATMOS_AIRLOCK_INTERIOR 		"atmos_incinerator_airlock_interior"
#define INCINERATOR_ATMOS_AIRLOCK_EXTERIOR 		"atmos_incinerator_airlock_exterior"

//Syndicate lavaland base incinerator (lavaland_surface_syndicate_base1.dmm)
#define INCINERATOR_SYNDICATELAVA_IGNITER 				"syndicatelava_igniter"
#define INCINERATOR_SYNDICATELAVA_MAINVENT 				"syndicatelava_mainvent"
#define INCINERATOR_SYNDICATELAVA_AUXVENT 				"syndicatelava_auxvent"
#define INCINERATOR_SYNDICATELAVA_DP_VENTPUMP			"syndicatelava_airlock_pump"
#define INCINERATOR_SYNDICATELAVA_AIRLOCK_SENSOR 		"syndicatelava_airlock_sensor"
#define INCINERATOR_SYNDICATELAVA_AIRLOCK_CONTROLLER 	"syndicatelava_airlock_controller"
#define INCINERATOR_SYNDICATELAVA_AIRLOCK_INTERIOR 		"syndicatelava_airlock_interior"
#define INCINERATOR_SYNDICATELAVA_AIRLOCK_EXTERIOR	 	"syndicatelava_airlock_exterior"

//MULTIPIPES
//IF YOU EVER CHANGE THESE CHANGE SPRITES TO MATCH.
//layer = initial(layer) + piping_layer / 1000 in atmospherics/update_icon() to determine order of pipe overlap
#define PIPING_LAYER_MIN 1
#define PIPING_LAYER_MAX 5
#define PIPING_LAYER_DEFAULT 3
#define PIPING_LAYER_P_X 5
#define PIPING_LAYER_P_Y 5
#define PIPING_LAYER_LCHANGE 0.005

/// intended to connect with all layers, check for all instead of just one.
#define PIPING_ALL_LAYER				(1<<0)
/// can only be built if nothing else with this flag is on the tile already.
#define PIPING_ONE_PER_TURF				(1<<1)
/// can only exist at PIPING_LAYER_DEFAULT
#define PIPING_DEFAULT_LAYER_ONLY		(1<<2)
/// north/south east/west doesn't matter, auto normalize on build.
#define PIPING_CARDINAL_AUTONORMALIZE	(1<<3)

// Ventcrawling bitflags, handled in var/vent_movement
///Allows for ventcrawling to occur. All atmospheric machines have this flag on by default. Cryo is the exception
#define VENTCRAWL_ALLOWED (1<<0)
///Allows mobs to enter or leave from atmospheric machines. On for passive, unary, and scrubber vents.
#define VENTCRAWL_ENTRANCE_ALLOWED (1<<1)
///Used to check if a machinery is visible. Called by update_pipe_vision(). On by default for all except cryo.
#define VENTCRAWL_CAN_SEE (1<<2)

DEFINE_BITFIELD(vent_movement, list(
	"Ventcrawl Allowed" = VENTCRAWL_ALLOWED,
	"Ventcrawl Entrance Allowed" = VENTCRAWL_ENTRANCE_ALLOWED,
	"Ventcrawl Can See" = VENTCRAWL_CAN_SEE,
))

// Gas defines because i hate typepaths
#define GAS_O2 "o2"
#define GAS_N2 "n2"
#define GAS_CO2 "co2"
#define GAS_PLASMA "plasma"
#define GAS_H2O "water_vapor"
#define GAS_HYPERNOB "hypernob"
#define GAS_NITROUS "n2o"
#define GAS_NITRIUM "nitrium"
#define GAS_TRITIUM "tritium"
#define GAS_BZ "bz"
#define GAS_PLUOXIUM "pluox"
#define GAS_MIASMA "miasma"
#define GAS_H2 "hydrogen"
#define GAS_FREON "freon"
#define GAS_HEALIUM "healium"
#define GAS_PLUONIUM "pluonium"
#define GAS_HALON "halon"
#define GAS_ANTINOB "antinob"
#define GAS_ZAUKER "zauker"
#define GAS_HEXANE "hexane"
#define GAS_DILITHIUM "dilithium"

#define GAS_FLAG_DANGEROUS (1<<0)
#define GAS_FLAG_BREATH_PROC (1<<1)

//Helpers
///Moves the icon of the device based on the piping layer and on the direction
#define PIPING_LAYER_SHIFT(T, PipingLayer) \
	if(T.dir & (NORTH|SOUTH)) { \
		T.pixel_x = (PipingLayer - PIPING_LAYER_DEFAULT) * PIPING_LAYER_P_X;\
	} \
	if(T.dir & (EAST|WEST)) { \
		T.pixel_y = (PipingLayer - PIPING_LAYER_DEFAULT) * PIPING_LAYER_P_Y;\
	}

///Moves the icon of the device based on the piping layer and on the direction, the shift amount is dictated by more_shift
#define PIPING_FORWARD_SHIFT(T, PipingLayer, more_shift) \
	if(T.dir & (NORTH|SOUTH)) { \
		T.pixel_y += more_shift * (PipingLayer - PIPING_LAYER_DEFAULT);\
	} \
	if(T.dir & (EAST|WEST)) { \
		T.pixel_x += more_shift * (PipingLayer - PIPING_LAYER_DEFAULT);\
	}

///Moves the icon of the device based on the piping layer on both x and y
#define PIPING_LAYER_DOUBLE_SHIFT(T, PipingLayer) \
	T.pixel_x = (PipingLayer - PIPING_LAYER_DEFAULT) * PIPING_LAYER_P_X;\
	T.pixel_y = (PipingLayer - PIPING_LAYER_DEFAULT) * PIPING_LAYER_P_Y;

#define MIASMA_CORPSE_MOLES 0.02
#define MIASMA_GIBS_MOLES 0.005

//PIPENET UPDATE STATUS
#define PIPENET_UPDATE_STATUS_DORMANT 0
#define PIPENET_UPDATE_STATUS_REACT_NEEDED 1
#define PIPENET_UPDATE_STATUS_RECONCILE_NEEDED 2

//Defines for air alarm severities in areas.
#define ATMOS_ALARM_SEVERE "severe"
#define ATMOS_ALARM_MINOR "minor"
#define ATMOS_ALARM_CLEAR "clear"