Ports smart metal foam from FTL (#29963)

* Ports smart foam from FTL

* Adds foam grenades to the EngiVend

* Why are you doing htis?

* Stuff

* badoop

code/game/machinery/vending.dm

@@ -1067,9 +1067,9 @@ IF YOU MODIFY THE PRODUCTS LIST OF A MACHINE, MAKE SURE TO UPDATE ITS RESUPPLY C
 	icon_state = "engivend"
 	icon_deny = "engivend-deny"
 	req_access_txt = "11" //Engineering Equipment access
-	products = list(/obj/item/clothing/glasses/meson/engine = 2, /obj/item/device/multitool = 4, /obj/item/electronics/airlock = 10, /obj/item/electronics/apc = 10, /obj/item/electronics/airalarm = 10, /obj/item/stock_parts/cell/high = 10, /obj/item/construction/rcd/loaded = 3, /obj/item/device/geiger_counter = 5)
+	products = list(/obj/item/clothing/glasses/meson/engine = 2, /obj/item/device/multitool = 4, /obj/item/electronics/airlock = 10, /obj/item/electronics/apc = 10, /obj/item/electronics/airalarm = 10, /obj/item/stock_parts/cell/high = 10, /obj/item/construction/rcd/loaded = 3, /obj/item/device/geiger_counter = 5, /obj/item/grenade/chem_grenade/smart_metal_foam = 10)
 	contraband = list(/obj/item/stock_parts/cell/potato = 3)
-	premium = list(/obj/item/storage/belt/utility = 3)
+	premium = list(/obj/item/storage/belt/utility = 3, /obj/item/storage/box/smart_metal_foam = 1)
 	armor = list(melee = 100, bullet = 100, laser = 100, energy = 100, bomb = 0, bio = 0, rad = 0, fire = 100, acid = 50)
 	resistance_flags = FIRE_PROOF
 

code/game/objects/effects/effect_system/effects_foam.dm

@@ -32,6 +32,9 @@
 /obj/effect/particle_effect/foam/metal/MakeSlippery()
 	return
 
+/obj/effect/particle_effect/foam/metal/smart
+	name = "smart foam"
+
 /obj/effect/particle_effect/foam/metal/iron
 	name = "iron foam"
 	metal = IRON_FOAM
@@ -68,6 +71,20 @@
 	flick("[icon_state]-disolve", src)
 	QDEL_IN(src, 5)
 
+/obj/effect/particle_effect/foam/smart/kill_foam() //Smart foam adheres to area borders for walls
+	STOP_PROCESSING(SSfastprocess, src)
+	if(metal)
+		var/turf/T = get_turf(src)
+		if(isspaceturf(T)) //Block up any exposed space
+			T.ChangeTurf(/turf/open/floor/plating/foam)
+		for(var/direction in GLOB.cardinals)
+			var/turf/cardinal_turf = get_step(T, direction)
+			if(get_area(cardinal_turf) != get_area(T)) //We're at an area boundary, so let's block off this turf!
+				new/obj/structure/foamedmetal(T)
+				break
+	flick("[icon_state]-disolve", src)
+	QDEL_IN(src, 5)
+
 /obj/effect/particle_effect/foam/process()
 	lifetime--
 	if(lifetime < 1)
@@ -149,6 +166,10 @@
 	effect_type = /obj/effect/particle_effect/foam/metal
 
 
+/datum/effect_system/foam_spread/metal/smart
+	effect_type = /obj/effect/particle_effect/foam/smart
+
+
 /datum/effect_system/foam_spread/New()
 	..()
 	chemholder = new /obj()

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

@@ -326,6 +326,24 @@
 	beakers += B2
 
 
+/obj/item/grenade/chem_grenade/smart_metal_foam
+	name = "smart metal foam grenade"
+	desc = "Used for sealing and reconstruction of air breaches."
+	stage = READY
+
+/obj/item/grenade/chem_grenade/smart_metal_foam/Initialize()
+	. = ..()
+	var/obj/item/reagent_containers/glass/beaker/large/B1 = new(src)
+	var/obj/item/reagent_containers/glass/beaker/B2 = new(src)
+
+	B1.reagents.add_reagent("aluminium", 75)
+	B2.reagents.add_reagent("smart_foaming_agent", 25)
+	B2.reagents.add_reagent("facid", 25)
+
+	beakers += B1
+	beakers += B2
+
+
 /obj/item/grenade/chem_grenade/incendiary
 	name = "incendiary grenade"
 	desc = "Used for clearing rooms of living things."

code/game/objects/items/storage/boxes.dm

@@ -583,6 +583,15 @@
 	for(var/i in 1 to 7)
 		new /obj/item/grenade/chem_grenade/metalfoam(src)
 
+/obj/item/storage/box/smart_metal_foam
+	name = "box of smart metal foam grenades"
+	desc = "Used to rapidly seal hull breaches. This variety conforms to the walls of its area."
+	illustration = "flashbang"
+
+/obj/item/storage/box/smart_metal_foam/PopulateContents()
+	for(var/i in 1 to 7)
+		new/obj/item/grenade/chem_grenade/smart_metal_foam(src)
+
 /obj/item/storage/box/hug
 	name = "box of hugs"
 	desc = "A special box for sensitive people."

code/game/turfs/simulated/floor.dm

@@ -24,7 +24,7 @@
 	..()
 	//This is so damaged or burnt tiles or platings don't get remembered as the default tile
 	var/static/list/icons_to_ignore_at_floor_init = list("damaged1","damaged2","damaged3","damaged4",
-					"damaged5","panelscorched","floorscorched1","floorscorched2","platingdmg1","platingdmg2",
+					"damaged5","panelscorched","floorscorched1","floorscorched2","platingdmg1","platingdmg2", "foam_plating",
 					"platingdmg3","plating","light_on","light_on_flicker1","light_on_flicker2",
 					"light_on_clicker3","light_on_clicker4","light_on_clicker5","light_broken",
 					"light_on_broken","light_off","wall_thermite","grass", "sand",

code/game/turfs/simulated/floor/plating.dm

@@ -4,6 +4,7 @@
  * Airless
  * Airless plating
  * Engine floor
+ * Foam plating
  */
 // note that plating and engine floor do not call their parent attackby, unlike other flooring
 // this is done in order to avoid inheriting the crowbar attackby
@@ -69,3 +70,35 @@
 				icon_state = icon_plating
 				burnt = 0
 				broken = 0
+
+/turf/open/floor/plating/foam
+	name = "metal foam plating"
+	desc = "Thin, fragile flooring created with metal foam."
+	icon_state = "foam_plating"
+	broken_states = list("foam_plating")
+	burnt_states = list("foam_plating")
+
+/turf/open/floor/plating/foam/attackby(obj/item/I, mob/user, params)
+	if(istype(I, /obj/item/stack/tile/plasteel))
+		var/obj/item/stack/tile/plasteel/P = I
+		if(P.use(1))
+			var/obj/L = locate(/obj/structure/lattice) in src
+			if(L)
+				qdel(L)
+			to_chat(user, "<span class='notice'>You reinforce the foamed plating with tiling.</span>")
+			playsound(src, 'sound/weapons/Genhit.ogg', 50, TRUE)
+			ChangeTurf(/turf/open/floor/plating)
+	else
+		playsound(src, 'sound/weapons/tap.ogg', 100, TRUE) //The attack sound is muffled by the foam itself
+		user.changeNext_move(CLICK_CD_MELEE)
+		user.do_attack_animation(src)
+		if(prob(I.force * 20 - 25))
+			user.visible_message("<span class='danger'>[user] smashes through [src]!</span>", \
+							"<span class='danger'>You smash through [src] with [I]!</span>")
+			ChangeTurf(baseturf)
+		else
+			to_chat(user, "<span class='danger'>You hit [src], to no effect!</span>")
+
+/turf/open/floor/plating/foam/ex_act()
+	..()
+	ChangeTurf(baseturf)

code/modules/reagents/chemistry/reagents/other_reagents.dm

@@ -1079,6 +1079,14 @@
 	color = "#664B63" // rgb: 102, 75, 99
 	taste_description = "metal"
 
+/datum/reagent/smart_foaming_agent //Smart foaming agent. Functions similarly to metal foam, but conforms to walls.
+	name = "Smart foaming agent"
+	id = "smart_foaming_agent"
+	description = "A agent that yields metallic foam which conforms to area boundaries when mixed with light metal and a strong acid."
+	reagent_state = SOLID
+	color = "#664B63" // rgb: 102, 75, 99
+	taste_description = "metal"
+
 /datum/reagent/ammonia
 	name = "Ammonia"
 	id = "ammonia"

code/modules/reagents/chemistry/recipes/others.dm

@@ -466,6 +466,20 @@
 	s.start()
 	holder.clear_reagents()
 
+/datum/chemical_reaction/smart_foam
+	name = "Smart Metal Foam"
+	id = "smart_metal_foam"
+	required_reagents = list("aluminium" = 3, "smart_foaming_agent" = 1, "facid" = 1)
+	mob_react = TRUE
+
+/datum/chemical_reaction/smart_foam/on_reaction(datum/reagents/holder, created_volume)
+	var/turf/location = get_turf(holder.my_atom)
+	location.visible_message("<span class='danger'>The solution spews out metallic foam!</span>")
+	var/datum/effect_system/foam_spread/metal/smart/s = new()
+	s.set_up(created_volume * 5, location, holder, TRUE)
+	s.start()
+	holder.clear_reagents()
+
 /datum/chemical_reaction/ironfoam
 	name = "Iron Foam"
 	id = "ironlfoam"
@@ -487,6 +501,13 @@
 	results = list("foaming_agent" = 1)
 	required_reagents = list("lithium" = 1, "hydrogen" = 1)
 
+/datum/chemical_reaction/smart_foaming_agent
+	name = "Smart foaming Agent"
+	id = "smart_foaming_agent"
+	results = list("smart_foaming_agent" = 3)
+	required_reagents = list("foaming_agent" = 3, "acetone" = 1, "iron" = 1)
+	mix_message = "The solution mixes into a frothy metal foam and conforms to the walls of its container."
+
 
 /////////////////////////////// Cleaning and hydroponics /////////////////////////////////////////////////