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Bubberstation/code/game/objects/effects/effect_system/effects_foam.dm
LemonInTheDark 6d1cb94ffb LINDA Reforged (#55604) 
Speeds up gas movement significantly
Documents the intent and finer details of the atmos system (Thanks dunc)
Fixes excited groups constantly rebuilding, this broke 4 years ago
Fixes superconductors just straight up not working
Allows turfs to sleep while inside an excited group
Adds a new subprocess to SSAir to support rebuilding in this state
Most heat based behavior no longer relies on being inside a fire
Adds a new element to support doing this cleanly
Adds a new subprocess to SSAir to support doing this while a turf is asleep
Refactors air_update_turf to allow for finer control
Makes apcs take damage in heat to prevent infinite plasma fire diffs
Cleans up immutable gas mixtures to make them work properly when the mix has gas in it
Planetary turfs no longer create a new copy of themselves each time they process. We instead use a global
immutable mix
Cleans up a typed for loop in reactions
Canisters will take damage from outside heat now
Speeds up excited group dismantle
Increases the superconductor threshold by 200k
Cleans up some roundstart ATs on some ruins
Uses /turf/open/var/excited to track if a turf is actively processing, preventing a |=
Prevents openspace from trying to melt
Tweaks a canister examine line
Makes planetary turfs reset to base when broken down as part of an excited group
Makes it impossible for planetary turfs to rebuild, just like space tiles
Fixes closed turfs not activating their replacement when destroyed by moving closed -> open turf activation to
the adjacent air subsystem. They were activating and then going back to sleep before adjacent air got a chance
to tick.
Fire alarms will trigger when the area gets too cold for humans
2021-01-08 08:14:08 +01:00

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// Foam
// Similar to smoke, but slower and mobs absorb its reagent through their exposed skin.
#define ALUMINUM_FOAM 1
#define IRON_FOAM 2
#define RESIN_FOAM 3
/obj/effect/particle_effect/foam
name = "foam"
icon_state = "foam"
opacity = FALSE
anchored = TRUE
density = FALSE
layer = EDGED_TURF_LAYER
mouse_opacity = MOUSE_OPACITY_TRANSPARENT
var/amount = 3
animate_movement = NO_STEPS
var/metal = 0
var/lifetime = 40
var/reagent_divisor = 7
var/static/list/blacklisted_turfs = typecacheof(list(
/turf/open/space/transit,
/turf/open/chasm,
/turf/open/lava))
var/slippery_foam = TRUE
/obj/effect/particle_effect/foam/firefighting
name = "firefighting foam"
lifetime = 20 //doesn't last as long as normal foam
amount = 0 //no spread
slippery_foam = FALSE
var/absorbed_plasma = 0
/obj/effect/particle_effect/foam/firefighting/ComponentInitialize()
..()
RemoveElement(/datum/element/atmos_sensitive)
/obj/effect/particle_effect/foam/firefighting/process()
..()
var/turf/open/T = get_turf(src)
var/obj/effect/hotspot/hotspot = (locate(/obj/effect/hotspot) in T)
if(hotspot && istype(T) && T.air)
qdel(hotspot)
var/datum/gas_mixture/G = T.air
if(G.gases[/datum/gas/plasma])
var/plas_amt = min(30,G.gases[/datum/gas/plasma][MOLES]) //Absorb some plasma
G.gases[/datum/gas/plasma][MOLES] -= plas_amt
absorbed_plasma += plas_amt
if(G.temperature > T20C)
G.temperature = max(G.temperature/2,T20C)
G.garbage_collect()
T.air_update_turf(FALSE, FALSE)
/obj/effect/particle_effect/foam/firefighting/kill_foam()
STOP_PROCESSING(SSfastprocess, src)
if(absorbed_plasma)
var/obj/effect/decal/cleanable/plasma/P = (locate(/obj/effect/decal/cleanable/plasma) in get_turf(src))
if(!P)
P = new(loc)
P.reagents.add_reagent(/datum/reagent/stable_plasma, absorbed_plasma)
flick("[icon_state]-disolve", src)
QDEL_IN(src, 5)
/obj/effect/particle_effect/foam/firefighting/foam_mob(mob/living/L)
if(!istype(L))
return
L.adjust_fire_stacks(-2)
/obj/effect/particle_effect/foam/metal
name = "aluminium foam"
metal = ALUMINUM_FOAM
icon_state = "mfoam"
slippery_foam = FALSE
/obj/effect/particle_effect/foam/metal/smart
name = "smart foam"
/obj/effect/particle_effect/foam/metal/iron
name = "iron foam"
metal = IRON_FOAM
/obj/effect/particle_effect/foam/metal/resin
name = "resin foam"
metal = RESIN_FOAM
/obj/effect/particle_effect/foam/long_life
lifetime = 150
/obj/effect/particle_effect/foam/Initialize()
. = ..()
create_reagents(1000) //limited by the size of the reagent holder anyway.
START_PROCESSING(SSfastprocess, src)
playsound(src, 'sound/effects/bubbles2.ogg', 80, TRUE, -3)
/obj/effect/particle_effect/foam/ComponentInitialize()
. = ..()
AddElement(/datum/element/atmos_sensitive)
/obj/effect/particle_effect/foam/ComponentInitialize()
. = ..()
if(slippery_foam)
AddComponent(/datum/component/slippery, 100)
/obj/effect/particle_effect/foam/Destroy()
STOP_PROCESSING(SSfastprocess, src)
return ..()
/obj/effect/particle_effect/foam/proc/kill_foam()
STOP_PROCESSING(SSfastprocess, src)
switch(metal)
if(ALUMINUM_FOAM)
new /obj/structure/foamedmetal(get_turf(src))
if(IRON_FOAM)
new /obj/structure/foamedmetal/iron(get_turf(src))
if(RESIN_FOAM)
new /obj/structure/foamedmetal/resin(get_turf(src))
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.PlaceOnTop(/turf/open/floor/plating/foam, flags = CHANGETURF_INHERIT_AIR)
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)
kill_foam()
return
var/fraction = 1/initial(reagent_divisor)
for(var/obj/O in range(0,src))
if(O.type == src.type)
continue
if(isturf(O.loc))
var/turf/T = O.loc
if(T.intact && HAS_TRAIT(O, TRAIT_T_RAY_VISIBLE))
continue
if(lifetime % reagent_divisor)
reagents.expose(O, VAPOR, fraction)
var/hit = 0
for(var/mob/living/L in range(0,src))
hit += foam_mob(L)
if(hit)
lifetime++ //this is so the decrease from mobs hit and the natural decrease don't cumulate.
var/T = get_turf(src)
if(lifetime % reagent_divisor)
reagents.expose(T, VAPOR, fraction)
if(--amount < 0)
return
spread_foam()
/obj/effect/particle_effect/foam/proc/foam_mob(mob/living/L)
if(lifetime<1)
return FALSE
if(!istype(L))
return FALSE
var/fraction = 1/initial(reagent_divisor)
if(lifetime % reagent_divisor)
reagents.expose(L, VAPOR, fraction)
lifetime--
return TRUE
/obj/effect/particle_effect/foam/proc/spread_foam()
var/turf/t_loc = get_turf(src)
for(var/turf/T in t_loc.reachableAdjacentTurfs())
var/obj/effect/particle_effect/foam/foundfoam = locate() in T //Don't spread foam where there's already foam!
if(foundfoam)
continue
if(is_type_in_typecache(T, blacklisted_turfs))
continue
for(var/mob/living/L in T)
foam_mob(L)
var/obj/effect/particle_effect/foam/F = new src.type(T)
F.amount = amount
reagents.copy_to(F, (reagents.total_volume))
F.add_atom_colour(color, FIXED_COLOUR_PRIORITY)
F.metal = metal
/obj/effect/particle_effect/foam/should_atmos_process(datum/gas_mixture/air, exposed_temperature)
return exposed_temperature > 475
/obj/effect/particle_effect/foam/atmos_expose(datum/gas_mixture/air, exposed_temperature)
if(prob(max(0, exposed_temperature - 475))) //foam dissolves when heated
kill_foam()
///////////////////////////////////////////////
//FOAM EFFECT DATUM
/datum/effect_system/foam_spread
var/amount = 10 // the size of the foam spread.
var/obj/chemholder
effect_type = /obj/effect/particle_effect/foam
var/metal = 0
/datum/effect_system/foam_spread/metal
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/long
effect_type = /obj/effect/particle_effect/foam/long_life
/datum/effect_system/foam_spread/New()
..()
chemholder = new /obj()
var/datum/reagents/R = new/datum/reagents(1000)
chemholder.reagents = R
R.my_atom = chemholder
/datum/effect_system/foam_spread/Destroy()
qdel(chemholder)
chemholder = null
return ..()
/datum/effect_system/foam_spread/set_up(amt=5, loca, datum/reagents/carry = null, metaltype = 0)
if(isturf(loca))
location = loca
else
location = get_turf(loca)
amount = round(sqrt(amt / 2), 1)
carry.copy_to(chemholder, carry.total_volume)
if(metaltype)
metal = metaltype
/datum/effect_system/foam_spread/start()
var/obj/effect/particle_effect/foam/F = new effect_type(location)
var/foamcolor = mix_color_from_reagents(chemholder.reagents.reagent_list)
chemholder.reagents.copy_to(F, chemholder.reagents.total_volume/amount)
F.add_atom_colour(foamcolor, FIXED_COLOUR_PRIORITY)
F.amount = amount
F.metal = metal
//////////////////////////////////////////////////////////
// FOAM STRUCTURE. Formed by metal foams. Dense and opaque, but easy to break
/obj/structure/foamedmetal
icon = 'icons/effects/effects.dmi'
icon_state = "metalfoam"
density = TRUE
opacity = TRUE // changed in New()
anchored = TRUE
layer = EDGED_TURF_LAYER
resistance_flags = FIRE_PROOF | ACID_PROOF
name = "foamed metal"
desc = "A lightweight foamed metal wall."
gender = PLURAL
max_integrity = 20
CanAtmosPass = ATMOS_PASS_DENSITY
/obj/structure/foamedmetal/Initialize()
. = ..()
air_update_turf(TRUE, TRUE)
/obj/structure/foamedmetal/Destroy()
air_update_turf(TRUE, FALSE)
. = ..()
/obj/structure/foamedmetal/Move()
var/turf/T = loc
. = ..()
move_update_air(T)
/obj/structure/foamedmetal/attack_paw(mob/user)
return attack_hand(user)
/obj/structure/foamedmetal/play_attack_sound(damage_amount, damage_type = BRUTE, damage_flag = 0)
playsound(src.loc, 'sound/weapons/tap.ogg', 100, TRUE)
/obj/structure/foamedmetal/attack_hand(mob/user)
. = ..()
if(.)
return
user.changeNext_move(CLICK_CD_MELEE)
user.do_attack_animation(src, ATTACK_EFFECT_PUNCH)
to_chat(user, "<span class='warning'>You hit [src] but bounce off it!</span>")
playsound(src.loc, 'sound/weapons/tap.ogg', 100, TRUE)
/obj/structure/foamedmetal/iron
max_integrity = 50
icon_state = "ironfoam"
//Atmos Backpack Resin, transparent, prevents atmos and filters the air
/obj/structure/foamedmetal/resin
name = "\improper ATMOS Resin"
desc = "A lightweight, transparent resin used to suffocate fires, scrub the air of toxins, and restore the air to a safe temperature."
opacity = FALSE
icon_state = "atmos_resin"
alpha = 120
max_integrity = 10
pass_flags_self = PASSGLASS
/obj/structure/foamedmetal/resin/Initialize()
. = ..()
if(isopenturf(loc))
var/turf/open/O = loc
O.ClearWet()
if(O.air)
var/datum/gas_mixture/G = O.air
G.temperature = 293.15
for(var/obj/effect/hotspot/H in O)
qdel(H)
var/list/G_gases = G.gases
for(var/I in G_gases)
if(I == /datum/gas/oxygen || I == /datum/gas/nitrogen)
continue
G_gases[I][MOLES] = 0
G.garbage_collect()
for(var/obj/machinery/atmospherics/components/unary/U in O)
if(!U.welded)
U.welded = TRUE
U.update_icon()
U.visible_message("<span class='danger'>[U] sealed shut!</span>")
for(var/mob/living/L in O)
L.extinguish_mob()
for(var/obj/item/Item in O)
Item.extinguish()
#undef ALUMINUM_FOAM
#undef IRON_FOAM
#undef RESIN_FOAM
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