adds simple diseases event

GainStation13/code/modules/events/disease_outbreak_light.dm

@@ -0,0 +1,43 @@
+/datum/round_event_control/disease_outbreak/light
+	name = "Light Disease Outbreak"
+	typepath = /datum/round_event/disease_outbreak/light
+	max_occurrences = 5
+	min_players = 5
+	weight = 10
+	category = EVENT_CATEGORY_HEALTH
+	description = "A simple disease will infect some crewmembers."
+
+/datum/round_event/disease_outbreak/light
+	max_severity = 0
+
+/datum/round_event/disease_outbreak/light/start()
+	if(!virus_type)
+		virus_type = pick(/datum/disease/cold9, /datum/disease/cold, /datum/disease/flu, /datum/disease/magnitis, /datum/disease/fluspanish, /datum/disease/anxiety, /datum/disease/brainrot)
+
+	for(var/mob/living/carbon/human/H in shuffle(GLOB.alive_mob_list))
+		var/turf/T = get_turf(H)
+		if(!T)
+			continue
+		if(!is_station_level(T.z))
+			continue
+		if(!H.client)
+			continue
+		if(HAS_TRAIT(H,TRAIT_EXEMPT_HEALTH_EVENTS))
+			continue
+		if(H.stat == DEAD)
+			continue
+		if(HAS_TRAIT(H, TRAIT_VIRUSIMMUNE)) //Don't pick someone who's virus immune, only for it to not do anything.
+			continue
+		var/foundAlready = FALSE	// don't infect someone that already has a disease
+		for(var/thing in H.diseases)
+			foundAlready = TRUE
+			break
+		if(foundAlready)
+			continue
+
+		var/datum/disease/D
+		D = new virus_type()
+		if (prob(25))
+			D.carrier = TRUE
+		H.ForceContractDisease(D, FALSE, TRUE)
+		break

tgstation.dme

@@ -4040,6 +4040,7 @@
 #include "GainStation13\code\modules\client\preferences\preferences.dm"
 #include "GainStation13\code\modules\clothing\under\jobs\modular_items.dm"
 #include "GainStation13\code\modules\events\bluespace_belt_failure.dm"
+#include "GainStation13\code\modules\events\disease_outbreak_light.dm"
 #include "GainStation13\code\modules\events\vent_clog.dm\vent_clog.dm"
 #include "GainStation13\code\modules\food_and_drinks\bigbottle.dm"
 #include "GainStation13\code\modules\food_and_drinks\drinks.dm"