//from setup.dm, which was removed in tgcode

#define MINIMUM_AIR_RATIO_TO_SUSPEND 0.05
	//Minimum ratio of air that must move to/from a tile to suspend group processing
#define MINIMUM_AIR_TO_SUSPEND MOLES_CELLSTANDARD*MINIMUM_AIR_RATIO_TO_SUSPEND
	//Minimum amount of air that has to move before a group processing can be suspended

#define MINIMUM_MOLES_DELTA_TO_MOVE MOLES_CELLSTANDARD*MINIMUM_AIR_RATIO_TO_SUSPEND //Either this must be active
#define MINIMUM_TEMPERATURE_TO_MOVE	T20C+100 		  //or this (or both, obviously)

#define MINIMUM_TEMPERATURE_RATIO_TO_SUSPEND 0.012
#define MINIMUM_TEMPERATURE_DELTA_TO_SUSPEND 4
	//Minimum temperature difference before group processing is suspended
#define MINIMUM_TEMPERATURE_DELTA_TO_CONSIDER 0.5
	//Minimum temperature difference before the gas temperatures are just set to be equal

#define MINIMUM_TEMPERATURE_FOR_SUPERCONDUCTION		T20C+10
#define MINIMUM_TEMPERATURE_START_SUPERCONDUCTION	T20C+200

#define FLOOR_HEAT_TRANSFER_COEFFICIENT 0.08
#define WALL_HEAT_TRANSFER_COEFFICIENT 0.03
#define SPACE_HEAT_TRANSFER_COEFFICIENT 0.20 //a hack to partly simulate radiative heat
#define OPEN_HEAT_TRANSFER_COEFFICIENT 0.40
#define WINDOW_HEAT_TRANSFER_COEFFICIENT 0.10 //a hack for now
	//Must be between 0 and 1. Values closer to 1 equalize temperature faster
	//Should not exceed 0.4 else strange heat flow occur

#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_CARBON_ENERGY_RELEASED	  500000 //Amount of heat released per mole of burnt carbon into the tile
#define FIRE_PLASMA_ENERGY_RELEASED	 3000000 //Amount of heat released per mole of burnt plasma into the tile
#define FIRE_GROWTH_RATE			25000 //For small fires

//Plasma fire properties
#define PLASMA_MINIMUM_BURN_TEMPERATURE		100+T0C
#define PLASMA_UPPER_TEMPERATURE			1370+T0C
#define PLASMA_MINIMUM_OXYGEN_NEEDED		2
#define PLASMA_MINIMUM_OXYGEN_PLASMA_RATIO	30
#define PLASMA_OXYGEN_FULLBURN				10

#define T0C 273.15					// 0degC
#define T20C 293.15					// 20degC
#define TCMB 2.7					// -270.3degC

#define TANK_LEAK_PRESSURE		(30.*ONE_ATMOSPHERE)	// Tank starts leaking
#define TANK_RUPTURE_PRESSURE	(40.*ONE_ATMOSPHERE) // Tank spills all contents into atmosphere

#define TANK_FRAGMENT_PRESSURE	(50.*ONE_ATMOSPHERE) // Boom 3x3 base explosion
#define TANK_FRAGMENT_SCALE	    (10.*ONE_ATMOSPHERE) // +1 for each SCALE kPa aboe threshold
								// was 2 atm

#define NORMPIPERATE 30					//pipe-insulation rate divisor
#define HEATPIPERATE 8					//heat-exch pipe insulation

#define FLOWFRAC 0.99				// fraction of gas transfered per process

#define CELL_VOLUME 2500	//liters in a cell
#define MOLES_CELLSTANDARD (ONE_ATMOSPHERE*CELL_VOLUME/(T20C*R_IDEAL_GAS_EQUATION))	//moles in a 2.5 m^3 cell at 101.325 Pa and 20 degC

#define O2STANDARD 0.21
#define N2STANDARD 0.79

#define MOLES_O2STANDARD MOLES_CELLSTANDARD*O2STANDARD	// O2 standard value (21%)
#define MOLES_N2STANDARD MOLES_CELLSTANDARD*N2STANDARD	// N2 standard value (79%)

#define MOLES_PLASMA_VISIBLE	0.5 //Moles in a standard cell after which plasma is visible

#define SPECIFIC_HEAT_TOXIN		200
#define SPECIFIC_HEAT_AIR		20
#define SPECIFIC_HEAT_CDO		30
#define HEAT_CAPACITY_CALCULATION(oxygen,carbon_dioxide,nitrogen,toxins) \
	(carbon_dioxide*SPECIFIC_HEAT_CDO + (oxygen+nitrogen)*SPECIFIC_HEAT_AIR + toxins*SPECIFIC_HEAT_TOXIN)

#define MINIMUM_HEAT_CAPACITY	0.0003
#define QUANTIZE(variable)		(round(variable,0.0001))
#define TRANSFER_FRACTION 5 //What fraction (1/#) of the air difference to try and transfer

//from FEA_gas_mixture.dm

#define SPECIFIC_HEAT_TOXIN		200
#define SPECIFIC_HEAT_AIR		20
#define SPECIFIC_HEAT_CDO		30
#define HEAT_CAPACITY_CALCULATION(oxygen,carbon_dioxide,nitrogen,toxins) \
	(carbon_dioxide*SPECIFIC_HEAT_CDO + (oxygen+nitrogen)*SPECIFIC_HEAT_AIR + toxins*SPECIFIC_HEAT_TOXIN)

#define MINIMUM_HEAT_CAPACITY	0.0003
#define QUANTIZE(variable)		(round(variable,0.0001))
#define TRANSFER_FRACTION 5 //What fraction (1/#) of the air difference to try and transfer