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Aurora.3/code/modules/ventcrawl/ventcrawl.dm
JohnWildkins a03f170f16 Ports BS12 fixes / refactor of visualnets. (#7572) 
Ports (and adjusts) Baystation12/Baystation12#12521 et al. Essentially brings our visualnet code up to the standard of three years ago, rather than five.

Side effects of merging may include but are not limited to loss of AI vision, helmet camera failure, garbage collection implosion, infinite turf loops, and unintended layer shenanigans.

High-level changes:

    Overall, visualnet/chunk procs have been renamed and refactored to be clear as to their function.
    Fix some layering issues related to magic numbers, these have been set to constants.
    Visualnets now track source movement rather than overriding individual mob/obj procs.
    Adds obfuscation underlay to complicate memory fudging to remove camera static.
    Cameras now only add themselves to the cameranet if they're on open (non-restricted) networks.
    Helmet cameras now use cameras themselves rather than network defines.
    Adds a sorted object list insertion helper.
    The Camera MIU (presently unused) should now function properly.
    Unused cultnet / cult mask deleted because refactoring that would likely kill the few brain cells I have left
2019-12-07 18:37:40 +02:00

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var/list/ventcrawl_machinery = list(
/obj/machinery/atmospherics/unary/vent_pump,
/obj/machinery/atmospherics/unary/vent_scrubber
)
// Vent crawling whitelisted items, whoo
var/global/list/can_enter_vent_with = list(
/obj/item/device/mmi,
/obj/item/implant,
/obj/item/device/radio/borg,
/obj/item/holder,
/obj/machinery/camera,
/mob/living/simple_animal/borer,
/mob/living/simple_animal/rat,
/mob/living/carbon/human
)
/mob/living/var/list/icon/pipes_shown = list()
/mob/living/var/last_played_vent
/mob/living/var/is_ventcrawling = 0
/mob/living/var/next_play_vent = 0
/mob/living/proc/can_ventcrawl()
return 0
/mob/living/Login()
. = ..()
//login during ventcrawl
if(is_ventcrawling && istype(loc, /obj/machinery/atmospherics)) //attach us back into the pipes
remove_ventcrawl()
add_ventcrawl(loc)
/mob/living/carbon/slime/can_ventcrawl()
if(Victim)
to_chat(src, "<span class='warning'>You cannot ventcrawl while feeding.</span>")
return 0
return 1
/mob/living/proc/is_allowed_vent_crawl_item(var/obj/item/carried_item)
if(is_type_in_list(carried_item, can_enter_vent_with))
return !get_inventory_slot(carried_item)
/mob/living/carbon/is_allowed_vent_crawl_item(var/obj/item/carried_item)
if(carried_item in internal_organs)
return 1
return ..()
/mob/living/carbon/human/is_allowed_vent_crawl_item(var/obj/item/carried_item)
if(carried_item in organs)
return 1
return ..()
/mob/living/simple_animal/spiderbot/is_allowed_vent_crawl_item(var/obj/item/carried_item)
if(carried_item == held_item)
return 1
return ..()
/mob/living/proc/ventcrawl_carry()
for(var/atom/A in src.contents)
if(!is_allowed_vent_crawl_item(A))
to_chat(src, "<span class='warning'>You can't be carrying that when vent crawling!</span>")
return 0
return 1
/obj/machinery/atmospherics/AltClick(mob/living/user)
if(is_type_in_list(src, ventcrawl_machinery) && user.can_ventcrawl())
user.handle_ventcrawl(src)
return 1
return ..()
/mob/living/carbon/human/can_ventcrawl()
return issmall(src)
/mob/proc/start_ventcrawl()
var/atom/pipe
var/list/pipes = list()
for(var/obj/machinery/atmospherics/unary/U in range(1))
if(is_type_in_list(U,ventcrawl_machinery) && Adjacent(U))
pipes |= U
if(!pipes || !pipes.len)
to_chat(usr, "<span class='notice'>There are no pipes that you can ventcrawl into within range!</span>")
return
if(pipes.len == 1)
pipe = pipes[1]
else
pipe = input("Crawl Through Vent", "Pick a pipe") as null|anything in pipes
if(canmove && pipe)
return pipe
/mob/living/carbon/slime/can_ventcrawl()
return 1
/mob/living/simple_animal/borer/can_ventcrawl()
return 1
/mob/living/simple_animal/borer/ventcrawl_carry()
return 1
/mob/living/simple_animal/rat/can_ventcrawl()
return 1
/mob/living/simple_animal/spiderbot/can_ventcrawl()
return 1
/mob/living/carbon/alien/can_ventcrawl()
return 1
/mob/living/carbon/alien/ventcrawl_carry()
return 1
/mob/living/proc/size_to_crawldelay(var/size)
var/delayticks = size * 3
return delayticks >= 3 ? delayticks : 3
/mob/living/proc/vent_trap_check(var/status, var/atom/location)
switch (status)
if ("departing")
for (var/obj/item/device/assembly/mousetrap/S in location.loc)
if (prob(25))
visible_message("<span class='danger'>[src] gets caught in the mousetrap while trying to crawl into the vent!</span>", "<span class='danger'>You get caught in the mousetrap while trying to crawl into the vent!</span>")
S.Crossed(src) // Triggers mousetrap
forceMove(location.loc)
if ("arriving")
for (var/obj/item/device/assembly/mousetrap/S in location.loc)
if (prob(75))
S.Crossed(src) // Triggers mousetrap
else
return
/mob/living/var/ventcrawl_layer = 3
/mob/living/proc/handle_ventcrawl(var/atom/clicked_on)
if(!stat)
if(!lying)
var/obj/machinery/atmospherics/unary/vent_found
if(clicked_on)
if (Adjacent(clicked_on))
vent_found = clicked_on
if(!is_type_in_list(vent_found, ventcrawl_machinery) || !vent_found.can_crawl_through())
vent_found = null
else
to_chat(src, "<span class='warning'>Stand next to the selected vent!</span>")
return
if(!vent_found && isnull(clicked_on))
for(var/obj/machinery/atmospherics/machine in range(1,src))
if(is_type_in_list(machine, ventcrawl_machinery))
vent_found = machine
if(!vent_found || !vent_found.can_crawl_through())
vent_found = null
if(vent_found)
break
if(vent_found:is_welded()) // welded check
to_chat(src, "<span class='warning'>You can't crawl into a welded vent!</span>")
return
vent_trap_check("departing", vent_found)
if(vent_found)
if(vent_found.network && (vent_found.network.normal_members.len || vent_found.network.line_members.len))
visible_message("<span class='warning'>[src] begins to climb into the ventilation system!</span>","<span class='notice'>You begin climbing into the ventilation system...</span>")
if(vent_found.air_contents && !issilicon(src))
switch(vent_found.air_contents.temperature)
if(0 to BODYTEMP_COLD_DAMAGE_LIMIT)
to_chat(src, "<span class='danger'>You feel a painful freeze coming from the vent!</span>")
if(BODYTEMP_COLD_DAMAGE_LIMIT to T0C)
to_chat(src, "<span class='warning'>You feel an icy chill coming from the vent.</span>")
if(T0C + 40 to BODYTEMP_HEAT_DAMAGE_LIMIT)
to_chat(src, "<span class='warning'>You feel a hot wash coming from the vent.</span>")
if(BODYTEMP_HEAT_DAMAGE_LIMIT to INFINITY)
to_chat(src, "<span class='danger'>You feel a searing heat coming from the vent!</span>")
switch(vent_found.air_contents.return_pressure())
if(0 to HAZARD_LOW_PRESSURE)
to_chat(src, "<span class='danger'>You feel a rushing draw pulling you into the vent!</span>")
if(HAZARD_LOW_PRESSURE to WARNING_LOW_PRESSURE)
to_chat(src, "<span class='warning'>You feel a strong drag pulling you into the vent.</span>")
if(WARNING_HIGH_PRESSURE to HAZARD_HIGH_PRESSURE)
to_chat(src, "<span class='warning'>You feel a strong current pushing you away from the vent.</span>")
if(HAZARD_HIGH_PRESSURE to INFINITY)
to_chat(src, "<span class='danger'>You feel a roaring wind pushing you away from the vent!</span>")
if(!do_mob(src, vent_found, mob_size ? size_to_crawldelay(mob_size) : size_to_crawldelay(15), 1, 1))
return
if(!client)
return
if(!ventcrawl_carry())
return
visible_message("<B>[src] scrambles into the ventilation ducts!</B>", "You climb into the ventilation system.")
forceMove(vent_found)
add_ventcrawl(vent_found.node)
sight = (SEE_TURFS|BLIND)
else
to_chat(src, "<span class='notice'>This vent is not connected to anything.</span>")
else
to_chat(src, "<span class='notice'>You must be standing on or beside an air vent to enter it.</span>")
else
to_chat(src, "<span class='notice'>You can't vent crawl while you're stunned!</span>")
else
to_chat(src, "<span class='notice'>You must be conscious to do this!</span>")
return
/mob/living/proc/add_ventcrawl(obj/machinery/atmospherics/starting_machine)
is_ventcrawling = 1
//candrop = 0
var/datum/pipe_network/network = starting_machine.return_network(starting_machine)
if(!network)
return
for(var/datum/pipeline/pipeline in network.line_members)
for(var/obj/machinery/atmospherics/A in (pipeline.members || pipeline.edges)) // Adds pipe and manifold images
if(!A.pipe_image)
A.pipe_image = image(A, A.loc, layer = SCREEN_LAYER+0.01, dir = A.dir)
pipes_shown += A.pipe_image
client.images += A.pipe_image
for (var/obj/machinery/atmospherics/V in network.normal_members) // Adds vent and scrubber images
if (!V.pipe_image || istype(V, /obj/machinery/atmospherics/unary/vent_pump/))
V.pipe_image = image(V, V.loc, layer = SCREEN_LAYER+0.01, dir = V.dir)
pipes_shown += V.pipe_image
client.images += V.pipe_image
/mob/living/proc/remove_ventcrawl()
is_ventcrawling = 0
//candrop = 1
if(client)
for(var/image/current_image in pipes_shown)
client.images -= current_image
client.eye = src
pipes_shown.len = 0
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