A preliminary implementation of chem gases

code/modules/atmospherics/gasmixtures/auxgm.dm

@@ -15,6 +15,7 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 /proc/_auxtools_register_gas(datum/gas/gas) // makes sure auxtools knows stuff about this gas
 
 /datum/auxgm
+	var/done_initializing = FALSE
 	var/list/datums = list()
 	var/list/specific_heats = list()
 	var/list/names = list()
@@ -24,6 +25,7 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 	var/list/ids = list()
 	var/list/typepaths = list()
 	var/list/fusion_powers = list()
+	var/list/turf_reagents = list()
 	var/list/breathing_classes = list()
 	var/list/breath_results = list()
 	var/list/breath_reagents = list()
@@ -36,18 +38,19 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 	var/list/fire_products = list()
 	var/list/fire_burn_rates = list()
 
-
 /datum/gas
 	var/id = ""
 	var/specific_heat = 0
 	var/name = ""
 	var/gas_overlay = "" //icon_state in icons/effects/atmospherics.dmi
+	var/color = "#ffff"
 	var/moles_visible = null
 	var/flags = NONE //currently used by canisters
 	var/fusion_power = 0 // How much the gas destabilizes a fusion reaction
 	var/breath_results = GAS_CO2 // what breathing this breathes out
-	var/breath_reagent = null // what breathing this adds to your reagents
-	var/breath_reagent_dangerous = null // what breathing this adds to your reagents IF it's above a danger threshold
+	var/datum/reagent/turf_reagent = null
+	var/datum/reagent/breath_reagent = null // what breathing this adds to your reagents
+	var/datum/reagent/breath_reagent_dangerous = null // what breathing this adds to your reagents IF it's above a danger threshold
 	var/list/breath_alert_info = null // list for alerts that pop up when you have too much/not enough of something
 	var/oxidation_temperature = null // temperature above which this gas is an oxidizer; null for none
 	var/oxidation_rate = 1 // how many moles of this can oxidize how many moles of material
@@ -87,7 +90,8 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 			breath_reagents[g] = gas.breath_reagent
 		if(gas.breath_reagent_dangerous)
 			breath_reagents_dangerous[g] = gas.breath_reagent_dangerous
-
+		if(gas.turf_reagent)
+			turf_reagents[g] = gas.turf_reagent
 		if(gas.oxidation_temperature)
 			oxidation_temperatures[g] = gas.oxidation_temperature
 			oxidation_rates[g] = gas.oxidation_rate
@@ -102,6 +106,11 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 			fire_enthalpies[g] = gas.fire_energy_released
 
 		_auxtools_register_gas(gas)
+		if(done_initializing)
+			for(var/r in SSair.gas_reactions)
+				var/datum/gas_reaction/R = r
+				R.init_reqs()
+			SSair.auxtools_update_reactions()
 
 /proc/finalize_gas_refs()
 
@@ -112,6 +121,7 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 	for(var/breathing_class_path in subtypesof(/datum/breathing_class))
 		var/datum/breathing_class/class = new breathing_class_path
 		breathing_classes[breathing_class_path] = class
+	done_initializing = TRUE
 	finalize_gas_refs()
 
 

code/modules/atmospherics/gasmixtures/reactions.dm

@@ -56,17 +56,62 @@
 	min_requirements = list(GAS_H2O = MOLES_GAS_VISIBLE)
 
 /datum/gas_reaction/water_vapor/react(datum/gas_mixture/air, datum/holder)
-	var/turf/open/location = isturf(holder) ? holder : null
-	. = NO_REACTION
+	var/turf/open/location = holder
+	if(!istype(location))
+		return NO_REACTION
 	if (air.return_temperature() <= WATER_VAPOR_FREEZE)
 		if(location && location.freon_gas_act())
-			. = REACTING
+			return REACTING
 	else if(location && location.water_vapor_gas_act())
 		air.adjust_moles(GAS_H2O,-MOLES_GAS_VISIBLE)
-		. = REACTING
+		return REACTING
 
 // no test cause it's entirely based on location
 
+/datum/gas_reaction/reagent_stuff
+	priority = 0
+	name = "Condensation"
+	id = "condense"
+
+/datum/gas_reaction/condensation/init_reqs()
+	var/highest_condensation_temp = -INFINITY
+	var/list/reagents = GLOB.gas_data.turf_reagents
+	for(var/gas in reagents)
+		var/datum/reagent/R = reagents[gas]
+		highest_condensation_temp = max(highest_condensation_temp, initial(R.boiling_point))
+	min_requirements = list(
+		"MAX_TEMP" = highest_condensation_temp,
+		"ANY_REAGENT" = 1
+	)
+
+/datum/gas_reaction/condensation/react(datum/gas_mixture/air, datum/holder)
+	var/turf/open/location = holder
+	if(!istype(location))
+		return NO_REACTION
+	var/list/gas_reagents = GLOB.gas_data.turf_reagents
+	var/temperature = air.return_temperature()
+	. = NO_REACTION
+	var/static/datum/reagents/reagents_holder = new
+	reagents_holder.clear_reagents()
+	reagents_holder.chem_temp = temperature
+	for(var/G in air.get_gases())
+		if(G in gas_reagents)
+			var/datum/reagent/R = gas_reagents[G]
+			if(temperature < initial(R.boiling_point))
+				var/amt = air.get_moles(G)
+				air.adjust_moles(G, -min(initial(R.condensation_amount), amt))
+				reagents_holder.add_reagent(R, amt)
+				. = REACTING
+	if(. == REACTING)
+		for(var/atom/movable/AM in location)
+			if(location.intact && AM.level == 1) //hidden under the floor
+				continue
+			reagents_holder.reaction(AM, TOUCH)
+
+		reagents_holder.reaction(location, TOUCH)
+
+
+
 //tritium combustion: combustion of oxygen and tritium (treated as hydrocarbons). creates hotspots. exothermic
 /datum/gas_reaction/tritfire
 	priority = -1 //fire should ALWAYS be last, but tritium fires happen before plasma fires