Merge pull request #13341 from Putnam3145/brain-trauma-nerf

Nerfs random brain trauma a good deal.

code/modules/events/brain_trauma.dm

@@ -3,6 +3,13 @@
 	typepath = /datum/round_event/brain_trauma
 	weight = 25
 
+/datum/round_event_control/brain_trauma/canSpawnEvent(var/players_amt, var/gamemode)
+	var/list/enemy_roles = list("Medical Doctor","Chief Medical Officer","Paramedic")
+	for (var/mob/M in GLOB.alive_mob_list)
+		if(M.stat != DEAD && (M.mind?.assigned_role in enemy_roles))
+			return TRUE
+	return FALSE
+
 /datum/round_event/brain_trauma
 	fakeable = FALSE
 
@@ -16,18 +23,19 @@
 			continue
 		if(HAS_TRAIT(H,TRAIT_EXEMPT_HEALTH_EVENTS))
 			continue
+		if(!is_station_level(H.z))
+			continue
 		traumatize(H)
 		break
 
 /datum/round_event/brain_trauma/proc/traumatize(mob/living/carbon/human/H)
 	var/resistance = pick(
 		65;TRAUMA_RESILIENCE_BASIC,
-		30;TRAUMA_RESILIENCE_SURGERY,
-		5;TRAUMA_RESILIENCE_LOBOTOMY)
+		35;TRAUMA_RESILIENCE_SURGERY)
 
 	var/trauma_type = pickweight(list(
-		BRAIN_TRAUMA_MILD = 60,
-		BRAIN_TRAUMA_SEVERE = 30,
+		BRAIN_TRAUMA_MILD = 80,
+		BRAIN_TRAUMA_SEVERE = 10,
 		BRAIN_TRAUMA_SPECIAL = 10
 	))