Add 5 new gases, related interactions/items/content, changes parts of fusion

code/__DEFINES/reactions.dm

@@ -53,16 +53,15 @@
 #define METAL_HYDROGEN_RESEARCH_MAX_AMOUNT	3000
 #define STIMULUM_RESEARCH_AMOUNT			50
 //Plasma fusion properties
-#define FUSION_ENERGY_THRESHOLD				3e9 	//Amount of energy it takes to start a fusion reaction
 #define FUSION_MOLE_THRESHOLD				250 	//Mole count required (tritium/plasma) to start a fusion reaction
 #define FUSION_TRITIUM_CONVERSION_COEFFICIENT (1e-10)
 #define INSTABILITY_GAS_POWER_FACTOR 		0.003
 #define FUSION_TRITIUM_MOLES_USED  			1
 #define PLASMA_BINDING_ENERGY  				20000000
-#define TOROID_VOLUME_BREAKEVEN			1000
-#define FUSION_TEMPERATURE_THRESHOLD	    10000
+#define TOROID_VOLUME_BREAKEVEN				1000
+#define FUSION_TEMPERATURE_THRESHOLD	    9000
 #define PARTICLE_CHANCE_CONSTANT 			(-20000000)
-#define FUSION_RAD_MAX						2000
+#define FUSION_RAD_MAX						1500
 #define FUSION_RAD_COEFFICIENT				(-1000)
 #define FUSION_INSTABILITY_ENDOTHERMALITY   2
 #define FUSION_MAXIMUM_TEMPERATURE			1e8

code/datums/components/crafting/recipes.dm

@@ -890,3 +890,15 @@
 	reqs = list(
 		/obj/item/reagent_containers/food/snacks/grown/wheat = 50
 	)
+
+
+/datum/crafting_recipe/elder_atmosian_statue
+	name = "Elder Atmosian Statue"
+	result = /obj/structure/statue/elder_atmosian
+	time = 6 SECONDS
+	reqs = list(/obj/item/stack/sheet/mineral/metal_hydrogen = 10,
+				/obj/item/grenade/gas_crystal/healium_crystal = 1,
+				/obj/item/grenade/gas_crystal/proto_nitrate_crystal = 1,
+				/obj/item/grenade/gas_crystal/cyrion_b_crystal = 1
+				)
+	category = CAT_MISC

code/game/objects/items/fireaxe.dm

@@ -74,3 +74,18 @@
 
 /obj/item/fireaxe/boneaxe/update_icon_state()
 	icon_state = "bone_axe0"
+
+/*
+ * Metal Hydrogen Axe
+ */
+/obj/item/fireaxe/metal_h2_axe  // Blatant imitation of the fireaxe, but made out of metallic hydrogen
+	icon_state = "metalh2_axe0"
+	name = "metallic hydrogen axe"
+	desc = "A large, menacing axe made of an unkown substance that the most elder atmosians calls Metallic Hydrogen. Truly an otherwordly weapon."
+
+/obj/item/fireaxe/metal_h2_axe/ComponentInitialize()
+	. = ..()
+	AddComponent(/datum/component/two_handed, force_unwielded=5, force_wielded=23, icon_wielded="metalh2_axe1")
+
+/obj/item/fireaxe/metal_h2_axe/update_icon_state()
+	icon_state = "metalh2_axe0"

code/game/objects/items/flamethrower.dm

@@ -223,7 +223,6 @@
 	//location.hotspot_expose(1000,500,1)
 	SSair.add_to_active(target, 0)
 
-
 /obj/item/flamethrower/Initialize(mapload)
 	. = ..()
 	if(create_full)

code/game/objects/items/grenades/atmos_grenades.dm

@@ -0,0 +1,127 @@
+/obj/item/grenade/gas_crystal
+	desc = "Some kind of crystal, this shouldn't spawn"
+	name = "Gas Crystal"
+	icon = 'icons/obj/grenade.dmi'
+	icon_state = "bluefrag"
+	inhand_icon_state = "flashbang"
+	resistance_flags = FIRE_PROOF
+
+
+/obj/item/grenade/gas_crystal/healium_crystal
+	name = "Healium crystal"
+	desc = "A crystal made from the Healium gas, it's cold to the touch."
+	icon_state = "healium_crystal"
+	///Amount of stamina damage mobs will take if in range
+	var/stamina_damage = 30
+	///Range of the grenade that will cool down and affect mobs
+	var/freeze_range = 4
+
+/obj/item/grenade/gas_crystal/proto_nitrate_crystal
+	name = "Proto Nitrate crystal"
+	desc = "A crystal made from the Proto Nitrate gas, you can see the liquid gases inside."
+	icon_state = "proto_nitrate_crystal"
+	///Range of the grenade air refilling
+	var/refill_range = 5
+
+/obj/item/grenade/gas_crystal/cyrion_b_crystal
+	name = "Cyrion B crystal"
+	desc = "A crystal made from the Cyrion B Gas, you can see the liquid plasma inside."
+	icon_state = "cyrion_b_crystal"
+	ex_dev = 1
+	ex_heavy = 2
+	ex_light = 4
+	ex_flame = 2
+
+/obj/item/grenade/gas_crystal/preprime(mob/user, delayoverride, msg = TRUE, volume = 60)
+	var/turf/turf_loc = get_turf(src)
+	log_grenade(user, turf_loc) //Inbuilt admin procs already handle null users
+	if(user)
+		add_fingerprint(user)
+		if(msg)
+			to_chat(user, "<span class='warning'>You crush the [src]! [capitalize(DisplayTimeText(det_time))]!</span>")
+	if(shrapnel_type && shrapnel_radius)
+		shrapnel_initialized = TRUE
+		AddComponent(/datum/component/pellet_cloud, projectile_type=shrapnel_type, magnitude=shrapnel_radius)
+	active = TRUE
+	icon_state = initial(icon_state) + "_active"
+	playsound(src, 'sound/effects/hit_on_shattered_glass.ogg', volume, TRUE)
+	SEND_SIGNAL(src, COMSIG_GRENADE_ARMED, det_time, delayoverride)
+	addtimer(CALLBACK(src, .proc/prime), isnull(delayoverride)? det_time : delayoverride)
+
+/obj/item/grenade/gas_crystal/healium_crystal/prime(mob/living/lanced_by)
+	. = ..()
+	update_mob()
+	playsound(src, 'sound/effects/spray2.ogg', 100, TRUE)
+	for(var/turf/turf_loc in view(freeze_range, loc))
+		if(!isopenturf(turf_loc))
+			continue
+		var/distance_from_center = get_dist(turf_loc, loc)
+		var/turf/open/floor_loc = turf_loc
+		switch(distance_from_center)
+			if(0)
+				if(floor_loc.air.temperature > 260 && floor_loc.air.temperature < 370)
+					floor_loc.atmos_spawn_air("n2=100;TEMP=273")
+				if(floor_loc.air.temperature > 370)
+					floor_loc.atmos_spawn_air("n2=250;TEMP=30")
+					floor_loc.MakeSlippery(TURF_WET_PERMAFROST, 5 MINUTES)
+				if(floor_loc.air.gases[/datum/gas/plasma])
+					floor_loc.air.gases[/datum/gas/plasma][MOLES] -= floor_loc.air.gases[/datum/gas/plasma][MOLES] * 0.5
+			if(1)
+				if(floor_loc.air.temperature > 260 && floor_loc.air.temperature < 370)
+					floor_loc.atmos_spawn_air("n2=50;TEMP=273")
+				if(floor_loc.air.temperature > 370)
+					floor_loc.atmos_spawn_air("n2=150;TEMP=30")
+					floor_loc.MakeSlippery(TURF_WET_PERMAFROST, 3 MINUTES)
+				if(floor_loc.air.gases[/datum/gas/plasma])
+					floor_loc.air.gases[/datum/gas/plasma][MOLES] -= floor_loc.air.gases[/datum/gas/plasma][MOLES] * 0.25
+			if(2)
+				if(floor_loc.air.temperature > 260 && floor_loc.air.temperature < 370)
+					floor_loc.atmos_spawn_air("n2=25;TEMP=273")
+				if(floor_loc.air.temperature > 370)
+					floor_loc.atmos_spawn_air("n2=75;TEMP=30")
+					floor_loc.MakeSlippery(TURF_WET_PERMAFROST, 1 MINUTES)
+				if(floor_loc.air.gases[/datum/gas/plasma])
+					floor_loc.air.gases[/datum/gas/plasma][MOLES] -= floor_loc.air.gases[/datum/gas/plasma][MOLES] * 0.15
+			else
+				if(floor_loc.air.temperature > 260 && floor_loc.air.temperature < 370)
+					floor_loc.atmos_spawn_air("n2=15;TEMP=273")
+				if(floor_loc.air.temperature > 370)
+					floor_loc.atmos_spawn_air("n2=35;TEMP=30")
+					floor_loc.MakeSlippery(TURF_WET_WATER, 1 MINUTES)
+				if(floor_loc.air.gases[/datum/gas/plasma])
+					floor_loc.air.gases[/datum/gas/plasma][MOLES] -= floor_loc.air.gases[/datum/gas/plasma][MOLES] * 0.05
+		floor_loc.air_update_turf()
+		for(var/mob/living/carbon/live_mob in turf_loc)
+			live_mob.adjustStaminaLoss(stamina_damage)
+			live_mob.adjust_bodytemperature(-150)
+	qdel(src)
+
+/obj/item/grenade/gas_crystal/proto_nitrate_crystal/prime(mob/living/lanced_by)
+	. = ..()
+	update_mob()
+	playsound(src, 'sound/effects/spray2.ogg', 100, TRUE)
+	for(var/turf/turf_loc in view(refill_range, loc))
+		if(!isopenturf(turf_loc))
+			continue
+		var/distance_from_center = get_dist(turf_loc, loc)
+		var/turf/open/floor_loc = turf_loc
+		switch(distance_from_center)
+			if(0)
+				floor_loc.atmos_spawn_air("n2=400;TEMP=273")
+				floor_loc.atmos_spawn_air("o2=100;TEMP=273")
+			if(1)
+				floor_loc.atmos_spawn_air("n2=250;TEMP=273")
+				floor_loc.atmos_spawn_air("o2=65;TEMP=273")
+			if(2)
+				floor_loc.atmos_spawn_air("n2=125;TEMP=273")
+				floor_loc.atmos_spawn_air("o2=35;TEMP=273")
+			else
+				floor_loc.atmos_spawn_air("n2=75;TEMP=273")
+				floor_loc.atmos_spawn_air("o2=20;TEMP=273")
+		floor_loc.air_update_turf()
+	qdel(src)
+
+/obj/item/grenade/gas_crystal/cyrion_b_crystal/prime(mob/living/lanced_by)
+	. = ..()
+	update_mob()
+	qdel(src)

code/game/objects/items/stacks/sheets/mineral.dm

@@ -482,6 +482,9 @@ GLOBAL_LIST_INIT(abductor_recipes, list ( \
 //Metal Hydrogen
 GLOBAL_LIST_INIT(metalhydrogen_recipes, list(
 	new /datum/stack_recipe("incomplete servant golem shell", /obj/item/golem_shell/servant, req_amount=20, res_amount=1),
+	new /datum/stack_recipe("ancient armor", /obj/item/clothing/suit/armor/elder_atmosian, req_amount = 8, res_amount = 1),
+	new /datum/stack_recipe("ancient helmet", /obj/item/clothing/head/helmet/elder_atmosian, req_amount = 5, res_amount = 1),
+	new /datum/stack_recipe("metallic hydrogen axe", /obj/item/fireaxe/metal_h2_axe, req_amount = 15, res_amount = 1),
 	))
 
 /obj/item/stack/sheet/mineral/metal_hydrogen
@@ -492,7 +495,7 @@ GLOBAL_LIST_INIT(metalhydrogen_recipes, list(
 	w_class = WEIGHT_CLASS_NORMAL
 	resistance_flags = FIRE_PROOF | LAVA_PROOF | ACID_PROOF | INDESTRUCTIBLE
 	point_value = 100
-	custom_materials = list(/datum/material/metalhydrogen=MINERAL_MATERIAL_AMOUNT)
+	custom_materials = list(/datum/material/metalhydrogen = MINERAL_MATERIAL_AMOUNT)
 	merge_type = /obj/item/stack/sheet/mineral/metal_hydrogen
 
 /obj/item/stack/sheet/mineral/metal_hydrogen/get_main_recipes()

code/game/objects/structures/statues.dm

@@ -300,3 +300,13 @@
 	desc = "A bust depicting a certain 19th century economist. You get the feeling a specter is haunting the station."
 	icon_state = "marx"
 	art_type = /datum/component/art/rev
+
+///////////Elder Atmosian///////////////////////////////////////////
+
+/obj/structure/statue/elder_atmosian
+	name = "Elder Atmosian"
+	desc = "A statue of an Elder Atmosian, capable of bending the laws of thermodynamics to their will"
+	icon_state = "eng"
+	material_drop_type = /obj/item/stack/sheet/mineral/metal_hydrogen
+	max_integrity = 1000
+	impressiveness = 100

code/game/turfs/open/_open.dm

@@ -264,9 +264,18 @@
 /turf/open/rad_act(pulse_strength)
 	. = ..()
 	if (air.gases[/datum/gas/carbon_dioxide] && air.gases[/datum/gas/oxygen])
-		pulse_strength = min(pulse_strength,air.gases[/datum/gas/carbon_dioxide][MOLES]*1000,air.gases[/datum/gas/oxygen][MOLES]*2000) //Ensures matter is conserved properly
-		air.gases[/datum/gas/carbon_dioxide][MOLES]=max(air.gases[/datum/gas/carbon_dioxide][MOLES]-(pulse_strength/1000),0)
-		air.gases[/datum/gas/oxygen][MOLES]=max(air.gases[/datum/gas/oxygen][MOLES]-(pulse_strength/2000),0)
+		pulse_strength = min(pulse_strength, air.gases[/datum/gas/carbon_dioxide][MOLES] * 1000, air.gases[/datum/gas/oxygen][MOLES] * 2000) //Ensures matter is conserved properly
+		air.gases[/datum/gas/carbon_dioxide][MOLES] = max(air.gases[/datum/gas/carbon_dioxide][MOLES] - (pulse_strength * 0.001),0)
+		air.gases[/datum/gas/oxygen][MOLES] = max(air.gases[/datum/gas/oxygen][MOLES]-(pulse_strength * 0.002),0)
 		air.assert_gas(/datum/gas/pluoxium)
-		air.gases[/datum/gas/pluoxium][MOLES]+=(pulse_strength/4000)
+		air.gases[/datum/gas/pluoxium][MOLES] +=(pulse_strength * 0.004)
 		air.garbage_collect()
+		air_update_turf()
+	if (air.gases[/datum/gas/hydrogen])
+		pulse_strength = min(pulse_strength, air.gases[/datum/gas/hydrogen][MOLES] * 1000)
+		air.gases[/datum/gas/hydrogen][MOLES] = max(air.gases[/datum/gas/hydrogen][MOLES] - (pulse_strength * 0.001), 0)
+		air.assert_gas(/datum/gas/tritium)
+		air.gases[/datum/gas/tritium][MOLES] += (pulse_strength * 0.001)
+		air.garbage_collect()
+		air_update_turf()
+

code/modules/atmospherics/gasmixtures/gas_mixture.dm

@@ -448,12 +448,14 @@ GLOBAL_LIST_INIT(gaslist_cache, init_gaslist_cache())
 			var/datum/gas_reaction/reaction = r
 
 			var/list/min_reqs = reaction.min_requirements
-			if((min_reqs["TEMP"] && temp < min_reqs["TEMP"]) \
-			|| (min_reqs["ENER"] && ener < min_reqs["ENER"]))
+			if(	(min_reqs["TEMP"] && temp < min_reqs["TEMP"]) || \
+				(min_reqs["ENER"] && ener < min_reqs["ENER"]) || \
+				(min_reqs["MAX_TEMP"] && temp > min_reqs["MAX_TEMP"])
+			)
 				continue
 
 			for(var/id in min_reqs)
-				if (id == "TEMP" || id == "ENER")
+				if (id == "TEMP" || id == "ENER" || id == "MAX_TEMP")
 					continue
 				if(!cached_gases[id] || cached_gases[id][MOLES] < min_reqs[id])
 					continue reaction_loop

code/modules/atmospherics/gasmixtures/gas_types.dm

@@ -170,6 +170,51 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(/datum/gas/oxygen, /datum/g
 	dangerous = TRUE
 	rarity = 700
 
+/datum/gas/healium
+	id = "healium"
+	specific_heat = 10
+	name = "Healium"
+	dangerous = TRUE
+	gas_overlay = "healium"
+	moles_visible = MOLES_GAS_VISIBLE
+	rarity = 100
+
+/datum/gas/proto_nitrate
+	id = "proto_nitrate"
+	specific_heat = 30
+	name = "Proto Nitrate"
+	dangerous = TRUE
+	gas_overlay = "proto_nitrate"
+	moles_visible = MOLES_GAS_VISIBLE
+	rarity = 100
+
+/datum/gas/cyrion_b
+	id = "cyrion_b"
+	specific_heat = 350
+	name = "Cyrion B"
+	dangerous = TRUE
+	gas_overlay = "cyrion_b"
+	moles_visible = MOLES_GAS_VISIBLE
+	rarity = 100
+
+/datum/gas/halon
+	id = "halon"
+	specific_heat = 175
+	name = "Halon"
+	dangerous = TRUE
+	gas_overlay = "halon"
+	moles_visible = MOLES_GAS_VISIBLE
+	rarity = 100
+
+/datum/gas/hexane
+	id = "hexane"
+	specific_heat = 5
+	name = "Hexane"
+	dangerous = TRUE
+	gas_overlay = "hexane"
+	moles_visible = MOLES_GAS_VISIBLE
+	rarity = 100
+
 /obj/effect/overlay/gas
 	icon = 'icons/effects/atmospherics.dmi'
 	mouse_opacity = MOUSE_OPACITY_TRANSPARENT