Domino of Explosions: Explosion on a Dwayne-Class

code/__DEFINES/atmospherics.dm

@@ -168,13 +168,13 @@
 
 //TANKS
 /// temperature in kelvins at which a tank will start to melt
-#define TANK_MELT_TEMPERATURE 1000000
+#define TANK_MELT_TEMPERATURE 800 + T0C
 /// Tank starts leaking
-#define TANK_LEAK_PRESSURE (30.*ONE_ATMOSPHERE)
+#define TANK_LEAK_PRESSURE (10 * ONE_ATMOSPHERE + 5)
 /// Tank spills all contents into atmosphere
-#define TANK_RUPTURE_PRESSURE (35.*ONE_ATMOSPHERE)
+#define TANK_RUPTURE_PRESSURE (11 * ONE_ATMOSPHERE)
 /// Boom 3x3 base explosion
-#define TANK_FRAGMENT_PRESSURE (40.*ONE_ATMOSPHERE)
+#define TANK_FRAGMENT_PRESSURE (12.*ONE_ATMOSPHERE)
 /// +1 for each SCALE kPa aboe threshold
 #define TANK_FRAGMENT_SCALE (6.*ONE_ATMOSPHERE)
 #define TANK_MAX_RELEASE_PRESSURE (ONE_ATMOSPHERE*3)
@@ -337,6 +337,7 @@
 #define GAS_HYDROGEN "h2"
 #define GAS_CHLORINE "cl2"
 #define GAS_HYDROGEN_CHLORIDE "hcl"
+#define GAS_CO "co"
 
 #define GAS_FLAG_DANGEROUS (1<<0)
 #define GAS_FLAG_BREATH_PROC (1<<1)

code/__DEFINES/species.dm

@@ -1,12 +1,12 @@
 // 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
+#define HAZARD_HIGH_PRESSURE 303
 /// This determins when the orange pressure icon is displayed (it is 0.7 * HAZARD_HIGH_PRESSURE)
-#define WARNING_HIGH_PRESSURE 325
+#define WARNING_HIGH_PRESSURE 202
 /// This is when the gray low pressure icon is displayed. (it is 2.5 * HAZARD_LOW_PRESSURE)
-#define WARNING_LOW_PRESSURE 50
+#define WARNING_LOW_PRESSURE 60
 /// This is when the black ultra-low pressure icon is displayed. (This one is set as a constant)
-#define HAZARD_LOW_PRESSURE 20
+#define HAZARD_LOW_PRESSURE 40
 
 /// 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
@@ -28,11 +28,11 @@
 /// The body temperature limit the human body can take before it starts taking damage from heat.
 /// This also affects how fast the body normalises it's temperature when hot.
 /// 340k is about 66c, and rather high for a human.
-#define HUMAN_BODYTEMP_HEAT_DAMAGE_LIMIT (HUMAN_BODYTEMP_NORMAL + 30)
+#define HUMAN_BODYTEMP_HEAT_DAMAGE_LIMIT (HUMAN_BODYTEMP_NORMAL + 20)
 /// The body temperature limit the human body can take before it starts taking damage from cold.
 /// This also affects how fast the body normalises it's temperature when cold.
 /// 270k is about -3c, that is below freezing and would hurt over time.
-#define HUMAN_BODYTEMP_COLD_DAMAGE_LIMIT (HUMAN_BODYTEMP_NORMAL - 40)
+#define HUMAN_BODYTEMP_COLD_DAMAGE_LIMIT (HUMAN_BODYTEMP_NORMAL - 30)
 
 
 //VOX DEFINES

code/__HELPERS/unsorted.dm

@@ -1542,3 +1542,46 @@ GLOBAL_DATUM_INIT(dview_mob, /mob/dview, new)
 	if(dir & WEST)
 		return WEST
 	return 0
+
+/proc/filled_turfs(atom/center, radius = 3, type = "circle", include_edge = TRUE)
+	var/turf/center_turf = get_turf(center)
+	if(radius < 0 || !center)
+		return
+	if(radius == 0)
+		return list(center_turf)
+
+	var/list/directions
+	switch(type)
+		if("square")
+			directions = GLOB.alldirs
+		if("circle")
+			directions = GLOB.cardinals
+
+	var/list/results = list(center_turf)
+	var/list/turfs_to_check = list()
+	turfs_to_check += center_turf
+	for(var/i = radius; i > 0; i--)
+		for(var/X in turfs_to_check)
+			var/turf/T = X
+			for(var/direction in directions)
+				var/turf/AdjT = get_step(T, direction)
+				if(!AdjT)
+					continue
+				if (AdjT in results) // Ignore existing turfs
+					continue
+				if(AdjT.density)
+					if(include_edge)
+						results += AdjT
+					continue
+
+				turfs_to_check += AdjT
+				results += AdjT
+	return results
+
+/proc/flame_radius(turf/epicenter, radius = 1, power = 5, fire_color = "red")
+	if(!isturf(epicenter))
+		CRASH("flame_radius used without a valid turf parameter")
+	radius = clamp(radius, 1, 50) //Sanitize inputs
+
+	for(var/turf/turf_to_flame as anything in filled_turfs(epicenter, radius, "circle"))
+		turf_to_flame.IgniteTurf(power, fire_color)

code/controllers/subsystem/explosions.dm

@@ -358,6 +358,8 @@ SUBSYSTEM_DEF(explosions)
 
 		if(flame_dist && prob(40) && !isspaceturf(T) && !T.density)
 			flameturf += T
+		if(flame_range)
+			flame_radius(epicenter, flame_range, flame_range*2)
 
 		//--- THROW ITEMS AROUND ---
 		var/throw_dir = get_dir(epicenter,T)

code/datums/components/pellet_cloud.dm

@@ -46,8 +46,6 @@
 	var/mob/living/shooter
 
 /datum/component/pellet_cloud/Initialize(projectile_type=/obj/item/shrapnel, magnitude=5)
-	if(!isammocasing(parent) && !isgrenade(parent) && !islandmine(parent) && !issupplypod(parent))
-		return COMPONENT_INCOMPATIBLE
 
 	if(magnitude < 1)
 		stack_trace("Invalid magnitude [magnitude] < 1 on pellet_cloud, parent: [parent]")
@@ -57,7 +55,7 @@
 
 	if(isammocasing(parent))
 		num_pellets = magnitude
-	else if(isgrenade(parent) || islandmine(parent) || issupplypod(parent))
+	else
 		radius = magnitude
 
 /datum/component/pellet_cloud/Destroy(force, silent)
@@ -78,6 +76,8 @@
 		RegisterSignal(parent, COMSIG_MINE_TRIGGERED, PROC_REF(create_blast_pellets))
 	else if(issupplypod(parent))
 		RegisterSignal(parent, COMSIG_SUPPLYPOD_LANDED, PROC_REF(create_blast_pellets))
+	else
+		RegisterSignal(parent, COMSIG_SUPPLYPOD_LANDED, PROC_REF(create_blast_pellets))
 
 /datum/component/pellet_cloud/UnregisterFromParent()
 	UnregisterSignal(parent, list(COMSIG_PARENT_PREQDELETED, COMSIG_PELLET_CLOUD_INIT, COMSIG_GRENADE_PRIME, COMSIG_GRENADE_ARMED, COMSIG_MOVABLE_MOVED, COMSIG_MINE_TRIGGERED, COMSIG_ITEM_DROPPED))

code/game/objects/items.dm

@@ -832,6 +832,29 @@ GLOBAL_VAR_INIT(embedpocalypse, FALSE) // if true, all items will be able to emb
 	if(isturf(location))
 		location.hotspot_expose(flame_heat, 5)
 
+	if(!prob(1))
+		return
+
+	for(var/dir in GLOB.cardinals)
+		var/ruined_round = FALSE
+		var/turf/test_turf = get_step(location, dir)
+		for(var/obj/to_test as obj in test_turf.contents)
+			if(istype(to_test, /obj/structure/reagent_dispensers/fueltank))
+				visible_message("<span class='userdanger'>A single ember from [src] drops gently onto [to_test]. Uh oh.</span>")
+				to_test.fire_act()
+				ruined_round = TRUE
+				break
+			if(istype(to_test, /obj/machinery/atmospherics/components/unary/tank))
+				visible_message("<span class='userdanger'>A flash fire forms around [src]!</span>")
+				location.IgniteTurf(flame_heat/20)
+				new /obj/effect/hotspot(location)
+				ruined_round = TRUE
+				break
+		if(ruined_round)
+			break
+
+
+
 /obj/item/proc/ignition_effect(atom/A, mob/user)
 	if(get_temperature())
 		. = "<span class='notice'>[user] lights [A] with [src].</span>"

code/game/objects/items/extinguisher.dm

@@ -188,7 +188,15 @@
 		var/turf/my_target = particles[W]
 		if(!W)
 			continue
-		step_towards(W,my_target)
+		var/turf/tomove = get_step_towards(W,my_target)
+		var/movedir = get_dir(W, tomove)
+		if(!W.CanPassThrough(tomove, movedir))
+			if(isopenturf(tomove))
+				W.forceMove(tomove)
+				particles -= W
+		else
+			W.Move(tomove)
+
 		if(!W.reagents)
 			continue
 		W.reagents.expose(get_turf(W))

code/game/objects/items/shrapnel.dm

@@ -70,6 +70,8 @@
 	armour_penetration = -35
 	dismemberment = 10
 	shrapnel_type = /obj/item/shrapnel/hot
+	ricochets_max = 10
+	ricochet_incidence_leeway = 0
 	damage_type = BURN
 
 /obj/projectile/bullet/shrapnel/hot/on_hit(atom/target, blocked = FALSE)

code/game/objects/items/tanks/tanks.dm

@@ -6,6 +6,7 @@
 	flags_1 = CONDUCT_1
 	slot_flags = ITEM_SLOT_BACK
 	hitsound = 'sound/weapons/smash.ogg'
+	resistance_flags = FIRE_PROOF // its metal, but the gas inside isnt nessarily fireproof...
 	pressure_resistance = ONE_ATMOSPHERE * 5
 	force = 5
 	throwforce = 10
@@ -16,7 +17,6 @@
 	armor = list("melee" = 0, "bullet" = 0, "laser" = 0, "energy" = 0, "bomb" = 10, "bio" = 0, "rad" = 0, "fire" = 80, "acid" = 30)
 	var/datum/gas_mixture/air_contents = null
 	var/distribute_pressure = ONE_ATMOSPHERE
-	var/integrity = 3
 	var/volume = 70
 
 	supports_variations = VOX_VARIATION
@@ -219,8 +219,33 @@
 /obj/item/tank/process()
 	//Allow for reactions
 	air_contents.react()
+	var/turf/open/current_turf = get_turf(src)
+	if(current_turf)
+		temperature_expose(current_turf.air, current_turf.air.return_temperature(), current_turf.air.return_pressure())
 	check_status()
 
+/obj/item/tank/fire_act(exposed_temperature, exposed_volume)
+	. = ..()
+	var/tank_temperature = air_contents.return_temperature()
+	tank_temperature = ((tank_temperature * 4) + exposed_temperature)/5 //slowly equalize with the air, since this is over an active fire, we heat up faster
+	air_contents.set_temperature(tank_temperature)
+	if(exposed_temperature > TANK_MELT_TEMPERATURE)
+		take_damage(max((exposed_temperature - TANK_MELT_TEMPERATURE), 0), BURN, 0)
+	if(exposed_volume > TANK_RUPTURE_PRESSURE) // implosion
+		take_damage(max((exposed_volume - TANK_RUPTURE_PRESSURE), 0), BURN, 0)
+
+
+/obj/item/tank/temperature_expose(datum/gas_mixture/air, exposed_temperature, exposed_volume)
+	if(!isturf(loc)) //so people dont freeze to death  by cold air during eva
+		return ..()
+	var/tank_temperature = air_contents.return_temperature()
+	tank_temperature = ((tank_temperature * 6) + exposed_temperature)/7 //slowly equalize  with the air
+	air_contents.set_temperature(tank_temperature)
+	if(exposed_temperature > TANK_MELT_TEMPERATURE)
+		take_damage(max((exposed_temperature - TANK_MELT_TEMPERATURE), 0), BURN, 0)
+	if(exposed_volume > TANK_RUPTURE_PRESSURE) // implosion
+		take_damage(max((exposed_volume - TANK_RUPTURE_PRESSURE), 0), BURN, 0)
+
 /obj/item/tank/proc/check_status()
 	//Handle exploding, leaking, and rupturing of the tank
 
@@ -232,40 +257,33 @@
 
 	if(pressure > TANK_FRAGMENT_PRESSURE)
 		if(!istype(src.loc, /obj/item/transfer_valve))
+			message_admins("[src] ruptured explosively at [ADMIN_VERBOSEJMP(src)], last touched by [get_mob_by_key(fingerprintslast)]!")
+			log_admin("[src] ruptured explosively at [ADMIN_VERBOSEJMP(src)], last touched by [get_mob_by_key(fingerprintslast)]!")
 			log_bomber(get_mob_by_key(fingerprintslast), "was last key to touch", src, "which ruptured explosively")
 		//Give the gas a chance to build up more pressure through reacting
 		air_contents.react(src)
 		pressure = air_contents.return_pressure()
-		var/range = (pressure-TANK_FRAGMENT_PRESSURE)/TANK_FRAGMENT_SCALE
+		var/range = (pressure-TANK_RUPTURE_PRESSURE)/TANK_FRAGMENT_SCALE
 		var/turf/epicenter = get_turf(loc)
 
 
 		explosion(epicenter, round(range*0.25), round(range*0.5), round(range), round(range*1.5))
+
+		AddComponent(/datum/component/pellet_cloud, /obj/projectile/bullet/shrapnel/hot, round(range))
 		if(istype(src.loc, /obj/item/transfer_valve))
 			qdel(src.loc)
 		else
-			qdel(src)
+			return obj_destruction()
 
 	else if(pressure > TANK_RUPTURE_PRESSURE || temperature > TANK_MELT_TEMPERATURE)
-		if(integrity <= 0)
-			var/turf/T = get_turf(src)
-			if(!T)
-				return
-			T.assume_air(air_contents)
-			playsound(src.loc, 'sound/effects/spray.ogg', 10, TRUE, -3)
-			qdel(src)
-		else
-			integrity--
-
-	else if(pressure > TANK_LEAK_PRESSURE)
-		if(integrity <= 0)
-			var/turf/T = get_turf(src)
-			if(!T)
-				return
-			var/datum/gas_mixture/leaked_gas = air_contents.remove_ratio(0.25)
-			T.assume_air(leaked_gas)
-		else
-			integrity--
+		take_damage(max((pressure - TANK_RUPTURE_PRESSURE), 0), BRUTE, 0)
+		take_damage(max((temperature - TANK_MELT_TEMPERATURE), 0), BRUTE, 0)
+
+/obj/item/tank/obj_destruction(damage_flag)
+	var/turf/T = get_turf(src)
+	if(!T)
+		return ..()
+	T.assume_air(air_contents)
+	playsound(src.loc, 'sound/effects/spray.ogg', 100, TRUE, -3)
+	return ..()
 
-	else if(integrity < 3)
-		integrity++

code/modules/atmospherics/auxgm/breathing_classes.dm

@@ -24,7 +24,7 @@
 	gases = list(
 		GAS_O2 = 1,
 		GAS_PLUOXIUM = 8,
-		GAS_CO2 = -0.7, // CO2 isn't actually toxic, just an asphyxiant
+		GAS_CO2 = -0.2, // CO2 isn't actually toxic, just an asphyxiant
 	)
 	products = list(
 		GAS_CO2 = 1,

code/modules/atmospherics/auxgm/gas_types.dm

@@ -29,6 +29,17 @@
 		)
 	)
 
+/datum/gas/carbon_monoxide
+	id = GAS_CO
+	specific_heat = 30
+	name = "Carbon Monoxide"
+	breath_results = GAS_CO
+
+	flags = GAS_FLAG_DANGEROUS
+
+	fusion_power = 0
+	enthalpy = -110500
+
 /datum/gas/carbon_dioxide //what the fuck is this?
 	id = GAS_CO2
 	specific_heat = 30
@@ -161,7 +172,7 @@
 	specific_heat = 10
 	name = "Hydrogen"
 	flags = GAS_FLAG_DANGEROUS
-	moles_visible = MOLES_GAS_VISIBLE
+	//moles_visible = MOLES_GAS_VISIBLE
 	color = "#ffe"
 	fusion_power = 0
 	fire_products = list(GAS_H2O = 1)

code/modules/atmospherics/gasmixtures/auxgm.dm

@@ -38,6 +38,7 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(GAS_O2, GAS_N2, GAS_CO2, GA
 
 /datum/gas
 	var/id = ""
+	/// heat capacity? thats the only explanation on what this var is
 	var/specific_heat = 0
 	var/name = ""
 	var/gas_overlay = "generic" //icon_state in icons/effects/atmospherics.dmi

code/modules/atmospherics/machinery/airalarm.dm

@@ -107,9 +107,9 @@
 	var/datum/radio_frequency/radio_connection
 
 	//anything outright hazardous (flammable, toxic, generally Weird)
-	var/list/filter_basic = list(GAS_CO2, GAS_PLASMA, GAS_NITROUS, GAS_BZ, GAS_TRITIUM, GAS_NITRYL, GAS_FREON, GAS_HYDROGEN, GAS_CHLORINE, GAS_HYDROGEN_CHLORIDE)
+	var/list/filter_basic = list(GAS_CO2, GAS_PLASMA, GAS_NITROUS, GAS_BZ, GAS_TRITIUM, GAS_NITRYL, GAS_FREON, GAS_HYDROGEN, GAS_CHLORINE, GAS_HYDROGEN_CHLORIDE, GAS_CO)
 	//anything that isn't o2 or n2.
-	var/list/filter_extra = list(GAS_CO2, GAS_PLASMA, GAS_NITROUS, GAS_BZ, GAS_TRITIUM, GAS_NITRYL, GAS_FREON, GAS_HYDROGEN, GAS_CHLORINE, GAS_HYDROGEN_CHLORIDE, GAS_H2O, GAS_HYPERNOB, GAS_STIMULUM, GAS_PLUOXIUM)
+	var/list/filter_extra = list(GAS_CO2, GAS_PLASMA, GAS_NITROUS, GAS_BZ, GAS_TRITIUM, GAS_NITRYL, GAS_FREON, GAS_HYDROGEN, GAS_CHLORINE, GAS_HYDROGEN_CHLORIDE, GAS_H2O, GAS_HYPERNOB, GAS_STIMULUM, GAS_PLUOXIUM, GAS_CO)
 
 	var/list/TLV = list( // Breathable air.
 		"pressure"					= new/datum/tlv(HAZARD_LOW_PRESSURE, WARNING_LOW_PRESSURE, WARNING_HIGH_PRESSURE, HAZARD_HIGH_PRESSURE), // kPa. Values are min2, min1, max1, max2
@@ -129,7 +129,8 @@
 		GAS_FREON 					= new/datum/tlv/dangerous,
 		GAS_HYDROGEN				= new/datum/tlv/dangerous,
 		GAS_CHLORINE				= new/datum/tlv/dangerous,
-		GAS_HYDROGEN_CHLORIDE		= new/datum/tlv/dangerous
+		GAS_HYDROGEN_CHLORIDE		= new/datum/tlv/dangerous,
+		GAS_CO						= new/datum/tlv(-1, -1, 0.002, 2)
 	)
 
 /obj/machinery/airalarm/server // No checks here.
@@ -151,7 +152,8 @@
 		GAS_FREON					= new/datum/tlv/no_checks,
 		GAS_HYDROGEN				= new/datum/tlv/no_checks,
 		GAS_CHLORINE				= new/datum/tlv/dangerous,
-		GAS_HYDROGEN_CHLORIDE		= new/datum/tlv/dangerous
+		GAS_HYDROGEN_CHLORIDE		= new/datum/tlv/dangerous,
+		GAS_CO						= new/datum/tlv(-1, -1, 5, 10)
 	)
 	heating_manage = FALSE
 
@@ -174,7 +176,8 @@
 		GAS_FREON					= new/datum/tlv/dangerous,
 		GAS_HYDROGEN				= new/datum/tlv/dangerous,
 		GAS_CHLORINE				= new/datum/tlv/dangerous,
-		GAS_HYDROGEN_CHLORIDE		= new/datum/tlv/dangerous
+		GAS_HYDROGEN_CHLORIDE		= new/datum/tlv/dangerous,
+		GAS_CO						= new/datum/tlv(-1, -1, 5, 10)
 	)
 	heating_manage = FALSE