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S.P.L.U.R.T-Station-13/code/modules/events/alien_infestation.dm

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/datum/round_event_control/alien_infestation
name = "Alien Infestation"
typepath = /datum/round_event/ghost_role/alien_infestation
weight = 5
earliest_start = 24000 //40 min
min_players = 20 //Avoid lowpop rounds
max_occurrences = 1
/datum/round_event/ghost_role/alien_infestation
announceWhen = 400
minimum_required = 1
role_name = "alien larva"
// 50% chance of being incremented by one
var/spawncount = 1
var/successSpawn = 0 //So we don't make a command report if nothing gets spawned.
/datum/round_event/ghost_role/alien_infestation/setup()
announceWhen = rand(announceWhen, announceWhen + 50)
if(prob(50))
spawncount++
/datum/round_event/ghost_role/alien_infestation/kill()
if(!successSpawn && control)
// This never happened, so let's not deny the future of this round
// some xenolovin
control.occurrences--
return ..()
/datum/round_event/ghost_role/alien_infestation/announce(fake)
if(successSpawn || fake)
priority_announce("Unidentified lifesigns detected coming aboard [station_name()]. Secure any exterior access, including ducting and ventilation.", "Lifesign Alert", 'sound/ai/aliens.ogg')
/datum/round_event/ghost_role/alien_infestation/spawn_role()
var/list/vents = list()
for(var/obj/machinery/atmospherics/components/unary/vent_pump/temp_vent in GLOB.machines)
if(QDELETED(temp_vent))
continue
if((temp_vent.loc.z in GLOB.station_z_levels) && !temp_vent.welded)
var/datum/pipeline/temp_vent_parent = temp_vent.PARENT1
//Stops Aliens getting stuck in small networks.
//See: Security, Virology
if(temp_vent_parent.other_atmosmch.len > 20)
vents += temp_vent
if(!vents.len)
message_admins("An event attempted to spawn an alien but no suitable vents were found. Shutting down.")
return MAP_ERROR
var/list/candidates = get_candidates("alien", null, ROLE_ALIEN)
if(!candidates.len)
return NOT_ENOUGH_PLAYERS
while(spawncount > 0 && vents.len && candidates.len)
var/obj/vent = pick_n_take(vents)
var/client/C = pick_n_take(candidates)
var/mob/living/carbon/alien/larva/new_xeno = new(vent.loc)
new_xeno.key = C.key
spawncount--
successSpawn = TRUE
message_admins("[key_name_admin(new_xeno)] has been made into an alien by an event.")
log_game("[key_name(new_xeno)] was spawned as an alien by an event.")
spawned_mobs += new_xeno
if(successSpawn)
return SUCCESSFUL_SPAWN
else
// Like how did we get here?
return FALSE