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Paradise/code/modules/events/demon_incursion.dm
PollardTheDragon 05791861b7 New PVE Major Midround: Demonic Incursion (#29053) 
* Initial commit. Event.

* Started converting mobs to basic mobs. Migo and Creature. Needs aggressiveness AI

* Makes CI happy

* Fixes some file names

* Ticks files

* Fixes file again

* Update code/modules/events/demon_incursion.dm

Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>
Signed-off-by: PollardTheDragon <144391971+PollardTheDragon@users.noreply.github.com>

* Announcement sound, spawn adjustments

* Reduced spread when portals multiply

* Elite spawns when portal count gets high

* Fixes missing comma

* Converted migo, blank, and most of hellhounds to basic mobs. Added new controllers and behaviors

* Fixes

* Linters!

* Faithless moved to basic mob

* LINTERS

* Makes skeletons basic mobs

* Fixes, Ranged Attacks, Ranged variants of nether mobs

* Handles portal expansion chance

* Linters

* Fixes mobs not breaking shit

* Fixes ranged attacks

* Fixes ranged attacks

* oops

* Another oops. No config changes are needed here

* Twenty percent chance that a nether mob is a grappler

* Dimensional tear fixes

* Adjusts awaken distance for hostile mobs, makes variable melee attack rate for basic mobs

* Variable initial spawns, variable spread rates.

* Whole lot of fixes from merge, hellhound completion

* Updated lavaland winter biodome

* Makes basic mobs able to hurt other mobs

* Makes spawners properly rally basic mobs to beat up the attacker

* Extra line

* Removed comment

* Makes hellhounds stop resting when attacked or when they find a new target

* Fixed initial portal spawn amounts

* Borgs now affected by basic mobs

* Nerfs portal spawn rate, nerfs portal integrity, nerfs portal max mobs

* Grapplers now teleport to missed turfs

* Removes duplicate notices

* Buff portals a small bit

* Makes nether portals no longer RR - the body is now recoverable from the blank it became

* Makes portals layer above mobs

* Removed excess ranged attack var

* Changes list for determining start count to rely on mobs with client instead of all clients

* Nerfs portal max mobs

* Portals can no longer spread to within 3 tiles of another portal except on initial event start

* Adjusts target portal count for big mobs

* Spawners now properly remove nest values of basic mobs

* Portals now glow an evil red. When portals are destroyed, 50% chance per mob to slay the mob

* add prowling and return to home behaviors

* cut this down

* be a tiny bit smarter

* Some code cleanup

* Removes hostile base type, removing excess code

* Gives /obj/ a basic mob attack handler. Fixes turrets

* Gives basic mobs a HUD

* Fixes skeleton death flag

* Adjusted initial spawns

* Incursion portals now slowly convert turfs, up to range 3 of them, to hellish flooring

* Increases reward per destroyed portal

* Makes the final portal of an incursion play a sound on destruction, couple portal fixes

* Fixes basic mob xenobiology interactions

* Non-shit portal sprites

* Adds hostile machine element, mobs now actively target turrets and emitters

* Properly gibs things when they should gib

* Linter fix

* Portals now layer under living mobs but over dead ones

* Adds blackbox checking for demon incursion portal counts

* Increases mob sight range slightly to account for widescreen, adds alt-color for grappler, delays incursion announcement a bit more

* Portals now are more likely to spread the less there are

* Incursion portals now repair themselves after not being damaged for some time

* Grilles now shock basic mobs

* Portals will now clean up basic mob corpses near them by gibbing them

* Portal spread chance is now exponential regression

* Portal mob spawns now linearly scale in time

* Fixes some skeleton oversights in ruin mapping

* Demon incursions no longer can spread to tiles in a space area, such as near brig plating

* Moves corpse cleanup to mobs via component

* Portals now drop bodies that are being eaten when they're destroyed.

* Addresses code review

* Docs some vars

---------

Signed-off-by: PollardTheDragon <144391971+PollardTheDragon@users.noreply.github.com>
Co-authored-by: Luc <89928798+lewcc@users.noreply.github.com>
Co-authored-by: warriorstar-orion <orion@snowfrost.garden>
2025-07-16 00:19:23 +00:00

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/datum/event/demon_incursion
name = "demon incursion"
/// Corresponds to the number of process() runs the event has lasted for. Roughly 2 minutes here.
announceWhen = 60
/// Corresponds to the number of process() runs the event has lasted for. Roughly 2 minutes here.
endWhen = 60
/// The name of the notification for dchat
var/notify_title = "Demonic Incursion"
/// The icon of the notification
var/notify_image = "nether"
/// List of portals
var/list/portal_list = list()
/// The target number of portals
var/target_portals = 100
/datum/event/demon_incursion/setup()
impact_area = findEventArea()
/datum/event/demon_incursion/start()
if(isnull(impact_area))
log_debug("No valid event areas could be generated for demonic incursion.")
var/initial_portals = max(length(GLOB.crew_list) / 10, 1)
target_portals = max(initial_portals * 10, 30)
var/list/area_turfs = get_area_turfs(impact_area)
var/notice_sent = FALSE
while(length(area_turfs) && initial_portals > 0)
var/turf/T = pick_n_take(area_turfs)
if(T.is_blocked_turf(exclude_mobs = TRUE))
continue
// Give ghosts some time to jump there before it begins.
var/image/alert_overlay = image('icons/mob/nest.dmi', notify_image)
if(!notice_sent)
notify_ghosts("\A [src] is about to open in [get_area(T)].", title = notify_title, source = T, alert_overlay = alert_overlay, flashwindow = FALSE, action = NOTIFY_FOLLOW)
notice_sent = TRUE
addtimer(CALLBACK(src, PROC_REF(spawn_portal), T), 4 SECONDS)
// Energy overload; we mess with machines as an early warning and for extra spookiness.
for(var/obj/machinery/M in range(8, T))
INVOKE_ASYNC(M, TYPE_PROC_REF(/atom, get_spooked))
initial_portals--
if(initial_portals > 0)
log_debug("demonic incursion failed to find a valid turf in [impact_area]")
SSticker.record_biohazard_start(INCURSION_DEMONS)
SSevents.biohazards_this_round += INCURSION_DEMONS
/datum/event/demon_incursion/proc/spawn_portal(location)
var/obj/structure/spawner/nether/demon_incursion/new_portal = new /obj/structure/spawner/nether/demon_incursion(location)
new_portal.linked_incursion = src
portal_list += new_portal
// Too many portals - make a bad thing happen
if(length(portal_list) > target_portals)
target_portals *= 2
prepare_spawn_elite()
/datum/event/demon_incursion/proc/prepare_spawn_elite()
var/obj/structure/spawner/nether/demon_incursion/elite_portal = pick(portal_list)
elite_portal.visible_message("<span class='danger'>Something within [elite_portal] stirs...</span>")
var/list/potentialspawns = list(/mob/living/simple_animal/hostile/asteroid/elite/broodmother,
/mob/living/simple_animal/hostile/asteroid/elite/pandora,
/mob/living/simple_animal/hostile/asteroid/elite/legionnaire,
/mob/living/simple_animal/hostile/asteroid/elite/herald)
var/selected_elite = pick(potentialspawns)
addtimer(CALLBACK(src, PROC_REF(spawn_elite), null, elite_portal, selected_elite), 10 SECONDS)
/datum/event/demon_incursion/proc/spawn_elite(mob/dead/observer/elitemind, obj/structure/spawner/nether/demon_incursion/elite_portal, selected_elite)
var/mob/living/simple_animal/hostile/asteroid/elite/created_mob = new selected_elite(elite_portal.loc)
created_mob.faction = list("nether")
elite_portal.visible_message("<span class='userdanger'>[created_mob] emerges from [elite_portal]!</span>")
notify_ghosts("\A [created_mob] has emerged from an incursion portal in \the [get_area(src)]!", enter_link="<a href=byond://?src=[UID()];follow=1>(Click to help)</a>", source = created_mob, action = NOTIFY_FOLLOW)
qdel(elite_portal)
playsound(created_mob.loc,'sound/effects/phasein.ogg', 200, FALSE, 50, TRUE, TRUE)
/datum/event/demon_incursion/announce(false_alarm)
var/area/target_area = impact_area
if(!target_area)
if(false_alarm)
target_area = findEventArea()
if(isnull(target_area))
log_debug("Tried to announce a false-alarm tear without a valid area!")
kill()
return
else
log_debug("Tried to announce an incursion without a valid area!")
kill()
return
GLOB.major_announcement.Announce("Major bluespace energy spike detected at [target_area.name]. Extradimensional intruder alert. All personnel must prevent the incursion before the station is destroyed.", "Demonic Incursion Alert", 'sound/effects/siren-spooky.ogg', new_sound2 = 'sound/AI/outbreak_demon.ogg')
/obj/structure/spawner/nether/demon_incursion
name = "demonic portal"
density = FALSE
layer = ABOVE_LYING_MOB_LAYER // Portals are below living mobs, but layer over dead ones
spawn_time = 5 SECONDS // Short spawn time initially, it gets updated after it spawns initial mobs
max_mobs = 5 // We want a lot of mobs, but not too many
max_integrity = 200
mob_types = list(/mob/living/basic/netherworld/migo,
/mob/living/basic/netherworld,
/mob/living/basic/netherworld/blankbody,
/mob/living/basic/hellhound,
/mob/living/basic/skeleton,
/mob/living/basic/netherworld/faithless)
icon = 'icons/obj/structures/portal.dmi'
icon_state = "portal"
light_range = 4
light_power = 2
light_color = "#780606"
spawner_type = /datum/component/spawner/demon_incursion_portal
/// The event that spawned this portal
var/datum/event/demon_incursion/linked_incursion
/// Percentage chance that a portal will spread every time spread() is called
var/portal_spread_chance = 50
/// Lowest possible spread chance
var/min_spread_chance = 10
/// Lower bound for portal spreading
var/portal_spread_cooldown_min = 3 MINUTES
/// Upper bound for portal spreading
var/portal_spread_cooldown_max = 4 MINUTES
/// Time until next portal
var/expansion_delay
/// How fast does the portal spawn mobs after the initial spawns?
var/spawn_rate = 30 SECONDS
/// How many initial mobs does it spawn?
var/initial_spawns_min = 1
var/initial_spawns_max = 4
/// Are we spawning initial mobs?
var/spawning_initial_mobs = TRUE
/// Current tile spread distance
var/tile_spread = 1
/// Max tile Spread distance
var/tile_spread_max = 3
/// Turf type that is spread by the portals
var/turf_to_spread = /turf/simulated/floor/engine/cult/demon_incursion
/// How long of a cooldown on portal repair
var/portal_repair_cooldown = 15 SECONDS
COOLDOWN_DECLARE(portal_repair)
/obj/structure/spawner/nether/demon_incursion/Initialize(mapload)
. = ..()
expansion_delay = rand(portal_spread_cooldown_min, portal_spread_cooldown_max)
addtimer(CALLBACK(src, PROC_REF(spread)), expansion_delay)
var/initial_spawns = rand(initial_spawns_min, initial_spawns_max)
var/initial_spawn_time = spawn_time * initial_spawns - 1
addtimer(CALLBACK(src, PROC_REF(stop_initial_mobs)), initial_spawn_time)
if(turf_to_spread)
spread_turf()
SSticker.mode.incursion_portals += src
/obj/structure/spawner/nether/demon_incursion/examine(mob/user)
. = ..()
if(COOLDOWN_FINISHED(src, portal_repair) && obj_integrity < max_integrity)
. += "<span class='warning'>Dark tendrils are stabilizing the portal!</span>"
/obj/structure/spawner/nether/demon_incursion/process()
. = ..()
if(!spawning_initial_mobs)
update_spawn_time()
if(!COOLDOWN_FINISHED(src, portal_repair))
return
if(obj_integrity >= max_integrity)
return
obj_integrity += 5
new /obj/effect/temp_visual/heal(loc, COLOR_BLOOD_MACHINE)
/obj/structure/spawner/nether/demon_incursion/deconstruct(disassembled)
var/datum/component/spawner/spawn_comp = GetComponent(/datum/component/spawner)
for(var/mob/living/basic/summoned_mob in spawn_comp.spawned_mobs)
if(prob(50))
playsound(src, 'sound/magic/lightningbolt.ogg', 60, TRUE)
Beam(summoned_mob, icon_state = "purple_lightning", icon = 'icons/effects/effects.dmi', time = 1 SECONDS)
summoned_mob.addtimer(CALLBACK(summoned_mob, TYPE_PROC_REF(/mob/living/basic, gib)), 1 SECONDS)
var/reward_type = pick(/obj/item/stack/ore/bluespace_crystal, /obj/item/stack/ore/palladium, /obj/item/stack/ore/platinum, /obj/item/stack/ore/iridium, /obj/item/stack/ore/diamond)
var/obj/item/stack/ore/reward = new reward_type(loc)
reward.amount = 2
if(linked_incursion)
linked_incursion.portal_list -= src
if(!length(linked_incursion.portal_list))
playsound(src, 'sound/misc/demon_dies.ogg', 100, TRUE, ignore_walls = TRUE)
SSticker.mode.incursion_portals -= src
return ..()
/obj/structure/spawner/nether/demon_incursion/take_damage(damage_amount, damage_type, damage_flag, sound_effect, attack_dir, armour_penetration_flat, armour_penetration_percentage)
. = ..()
COOLDOWN_START(src, portal_repair, portal_repair_cooldown)
/obj/structure/spawner/nether/demon_incursion/on_mob_spawn(mob/created_mob)
. = ..()
created_mob.Move(get_step(created_mob.loc, pick(GLOB.alldirs)))
var/mob/living/basic/new_mob = created_mob
if(!istype(new_mob, /mob/living/basic))
return
if(new_mob.basic_mob_flags & DEL_ON_DEATH)
return
new_mob.AddComponent(/datum/component/incursion_mob_death)
/obj/structure/spawner/nether/demon_incursion/attacked_by(obj/item/attacker, mob/living/user)
. = ..()
SEND_SIGNAL(src, COMSIG_SPAWNER_SET_TARGET, user)
/obj/structure/spawner/nether/demon_incursion/bullet_act(obj/item/projectile/P)
. = ..()
if(P.firer)
SEND_SIGNAL(src, COMSIG_SPAWNER_SET_TARGET, P.firer)
/obj/structure/spawner/nether/demon_incursion/proc/update_spawn_time()
var/datum/component/spawner/spawn_comp = GetComponent(/datum/component/spawner)
var/spawn_increment = 0
for(var/mob/living/mob as anything in spawn_comp.spawned_mobs)
spawn_increment += 5 SECONDS
spawn_comp.spawn_time = spawn_time + spawn_increment
/obj/structure/spawner/nether/demon_incursion/proc/spread()
var/base_portal_count = max(length(GLOB.crew_list) / 10, 1)
if(length(linked_incursion.portal_list) <= base_portal_count)
portal_spread_chance = 100
else
// Spread chance runs on an exponential regression formula when above the base portal count.
var/log_value = (50 - min_spread_chance) / (100 - min_spread_chance)
var/midpoint = -(log(log_value) / base_portal_count)
var/euler_exponent = 2.71828 ** (-midpoint * (length(linked_incursion.portal_list) - base_portal_count))
portal_spread_chance = min_spread_chance + ((100 - min_spread_chance) * euler_exponent)
expansion_delay = rand(portal_spread_cooldown_min, portal_spread_cooldown_max)
if(!prob(portal_spread_chance))
addtimer(CALLBACK(src, PROC_REF(spread)), expansion_delay)
return
var/list/spawnable_turfs = list()
for(var/turf/simulated/floor/possible_loc in orange(8, src.loc))
if(!istype(possible_loc))
continue
if(istype(get_area(possible_loc), /area/space))
continue
if(possible_loc.is_blocked_turf(exclude_mobs = TRUE))
continue
var/density_check = TRUE
for(var/turf/possible_turf in view(3, possible_loc))
if(locate(/obj/structure/spawner/nether/demon_incursion) in possible_turf)
density_check = FALSE
continue
if(!density_check)
continue
spawnable_turfs += possible_loc
if(!spawnable_turfs)
return
var/turf/spawn_loc = pick_n_take(spawnable_turfs)
linked_incursion.spawn_portal(spawn_loc)
addtimer(CALLBACK(src, PROC_REF(spread)), expansion_delay)
return
/obj/structure/spawner/nether/demon_incursion/proc/stop_initial_mobs()
spawning_initial_mobs = FALSE
spawn_time = spawn_rate
update_spawn_time()
/obj/structure/spawner/nether/demon_incursion/proc/spread_turf()
for(var/turf/spread_turf in range(tile_spread, loc))
if(isfloorturf(spread_turf) && !istype(spread_turf, turf_to_spread))
spread_turf.ChangeTurf(turf_to_spread)
Beam(spread_turf, icon_state = "sendbeam", icon = 'icons/effects/effects.dmi', time = 0.5 SECONDS)
if(tile_spread < tile_spread_max)
tile_spread++
addtimer(CALLBACK(src, PROC_REF(spread_turf)), spawn_rate)
/turf/simulated/floor/engine/cult/demon_incursion
name = "hellish flooring"
/turf/simulated/floor/engine/cult/demon_incursion/Initialize(mapload)
. = ..()
icon_state = "culthell" // Cult floors auto adjust. This forces it to be the hell variant
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